Consulta: year:"1951"
Registros recuperados: 195
Data/hora: 02/06/2024 05:32:44

A nossa crise de borracha.
Provedor de dados: 14
Autores: CAMARGO, F. C. de.
Para orientar a formação de seringueira de cultura, o Governo Federal contou com os resultados obtidos nos campos de experiencia criados pelo Ford em Fordlandia e Belterra, com experiência colhida pelo Instituto Agronômico do Norte.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Borracha; Comercialização.
Ano: 1951
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/919562

Une Expérience de Marquage sur la Sardine du Golfe de Gascogne
Provedor de dados: 5
Autores: Letaconnoux, Robert.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/00414/52584/53422.pdf

Statistique des régions de pêche - année 1949 (1er et 2e semestres)
Provedor de dados: 5
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6727.pdf

Notes sur la biologie et la morphologie de la Sardine (Sardina pilchardus WALB.) dans le fond du golfe de Gascogne
Provedor de dados: 5
Autores: Creac'H, Paul V.
The end of the Bay of Biscay is an area where the sardine population renews itself and where different populations (triangles representative of the fluctuation of the vertebral mean do not overlap) can follow one another.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6734.pdf

Les appâts employés pour la pêche de la sardine. La rogue de morue
Provedor de dados: 5
Autores: Roger, Ed.
We will not come back to the history of the diverse baits used in sardine fishing, as it has already been the object of a very interesting study by R. Legendre, Head of the Marine laboratory of the Collège de France in Concarneau, published in several publications and especially in the XIIIth Volume of the Revue des Travaux de l'Office des Pêches. Our aim here is to take stock of this issue which has been a hot topic for the last few years because of the war and can still be of some interest for those dealing with sardine fishing, for example for economical reasons.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6730.pdf

Observations sur Mytilicola intestinalis steuer parasite des moules
Provedor de dados: 5
Autores: Heldt, J. H.
Lors de la réunion à Copenhague, en octobre dernier, du Conseil International pour l'Exploration de la Mer, le Dr KORRINGA a fait, au « Shellfish Meeting », un saisissant exposé du désastre, sans précédent dans l'histoire de la Mytiliculture, qui vient de frapper les parcs de Zélande. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6749.pdf

Mytilicola intestinalis in relation to other invasions of aquatic animals
Provedor de dados: 5
Autores: Havinga, B.
The penetration and extension of J1IIylWco!a inlcslinalis in different parts of N. VV. Europe has raised the very important question ,vhether this species will be able to mainlain itself as a permanent resielent or that il will disappear again. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6765.pdf

Contribution à l'étude des espèces du genre Trachurus et spécialement du Trachurus trachurus (Linné 1758)
Provedor de dados: 5
Autores: Letaconnoux, Robert.
Ce travail a été entrepris dans le but de rassembler des notes et travaux épars, français et étrangers, et de présenter une étude résumée de tout ce qui' a trait au Téléostéen désigné parfois vulgairement sous le nom de Chinchard et se rapportant à l'espèce linnéenne Trachurus trachurus (Linné 1758). Nous y avons ajouté quelques observations personnelles, sans vouloir prétendre que cette monographie soit un travail complet.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/00022/13329/10373.pdf

Considérations nouvelles sur les migrations du germon
Provedor de dados: 5
Autores: Letaconnoux, Robert.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6735.pdf

Considérations sur l'exploitation du stock de merlu depuis 1937
Provedor de dados: 5
Autores: Letaconnoux, Robert.
In 1947, the International Council for the Exploitation of Oceans held a special meeting to study the effects of the war on the constitution of the fish stocks. In their broad lines, all the works showed that the increase of the fishing performances after the war was the consequence of the repopulation of the bottoms by fishes which were more numerous and bigger than those fished before the war, and that this increase spread throughout all European waters.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6733.pdf

Action de la Laitance de Hareng sur la croissance du lapin
Provedor de dados: 5
Autores: Creac'H, Paul V.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6729.pdf

Le pèlerin (Cetorhinus maximus Gunner) et sa pêche
Provedor de dados: 5
Autores: Chenard, M; Desbrosses, P; Le Gall, J.
This study founds its origin in a report by M. M. Chenard, regional inspector of the OPM. 4 service in Quiberon on "basking shark fishing in the Quiberon area in 1946-1947"
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6732.pdf

Le hareng du sud de la mer du nord et de la manche orientale
Provedor de dados: 5
Autores: Ancellin, Jacques.
In this work, we gathered the results of the studies carried out on the herrings of the south of the North Sea and the eastern English Channel during the winter fisheries of 1946-50.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6736.pdf

Rapport sur l'activité du service du contrôle sanitaire des coquillages pendant l'année 1951 - La Tremblade
Provedor de dados: 5
Autores: Trochon, Pierre.
Rapport d'action du service du contrôle sanitaire des coquillages pendant l'année 1951 du Laboratoire ISTPM de La Tremblade
Tipo: Text
Palavras-chave: Contrôle sanitaire; Rapport d'activité; Ostréiculture; Reproduction; Parasite; Crassostrea angulata; Mytilus edulis; Ostrea edulis; Marennes Oléron.
Ano: 1951
URL: http://archimer.ifremer.fr/doc/00069/18062/15606.pdf

Le Cop rouge (Mytilicola intestinalis steuer) sur les côtes de France
Provedor de dados: 5
Autores: Lambert, L.
Une étude complète des gisements et parcs du littoral français a été faite. Les inspecteurs de chaque région ont examiné à plusieurs reprises les moules de différentes tailles récoltées sur ces gisements et dans ces parcs. La présence du Cop Rouge a été décelée à plusieurs reprises et dans des endroits très éloignés les uns des autres. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6751.pdf

Quelques observations sur la fréquence de Mytilicola intestinalis steuer (Copepoda parasita) dans les moules du littoral méditerranéen français
Provedor de dados: 5
Autores: Korringa, P; Lambert, L.
La prospérité de la mytiliculture zélandaise a été interrompue brusquement en 1950 par l'action du Copépode parasite Mytilicola intestinalis Steuer. Le Mytilicola est dit en France le "Cop Rouge". [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6748.pdf

Le poisson et le froid
Provedor de dados: 5
Autores: Le Gall, Jean.
Fish and sea products are the most fragile and perishable goods. This disadvantage is the consequence of their high water content (about 75 to 80 %), which makes a favourable environment for the development of microorganisms and for diastase or enzyme activity: main causes of the alteration of these products.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6728.pdf

L'ostréiculture et la mytiliculture en Zélande (Pays-Bas)
Provedor de dados: 5
Autores: Lambert, Louis.
The mission in charge of studying the oyster and mussel culture techniques in the Netherlands consisted of five professionals from our main culture centres.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6731.pdf

Le Mytilicola en Angleterre
Provedor de dados: 5
Autores: Cole, H. A.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6752.pdf

Renseignements pouvant aider à la reconnaissance de Mytilicola et de ses larves et description des méthodes d'examen d'échantillons de moules
Provedor de dados: 5
Autores: Lambert, L.
Dans les intestins de la moule Mytilus galloprovincialis Lam., et Mytilus edulis L.) peuvent se trouver des organismes vermiculaires d'une couleur rouge sang, appartenant aux Crustacés, quoique modifiés considérablement par leur mode de vie parasitaire. Notamment leurs extrémités sont réduites ce qui leur donne un aspect vermiculaire. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6750.pdf

Recherches allemandes relatives au "Mytilicola", copépode parasite de la moule, existant dans les watten allemandes 1950/51
Provedor de dados: 5
Autores: Meyer, P. F.; Mann, H.
Le fait qui s'est produit en automne 1949 et au printemps 1950, qu'une grande partie de la culture des moules hollandaises fut détruite par l'apparition épidémique dans les bancs de moules menacés, du Copépode parasite, Mytilicola. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6753.pdf

Le copépode Mytilicola intestinalis A. Steuer peut-il être la cause d'une maladie épidémique des moules ?
Provedor de dados: 5
Autores: Dollfus, Robert Ph.
La Biologie de ces Copépodes et leurs effets sur l'hôte ont été peu étudiés, néanmoins aucun observateur, à ma connaissance, n'a démontré que la présence de Copépodes chez un mollusque pouvait entraîner la mort de celui-ci. L'opinion générale, jusqu'à présent, était que la présence continue, la lente propagation, la dissémination de ces parasites, ne pouvait pas avoir une réelle influence sur la mortalité des hôtes. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6766.pdf

Le Mytilicola intestinalis steuer (Copepoda parasitica) menace l'industrie moulière en Zélande
Provedor de dados: 5
Autores: Korringa, P.
L'industrie moulière dans les eaux zélandaises fut florissante pendant de nombreuses années. La production annuelle se montait à 50.000.000 kilos de moules (Mylilus edulis L.) destinées aux marchés; la plupart étant vendues dans leurs coquilles surtout en Belgique et en France. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6747.pdf

La pêche aux thons sur la côte Basque Française et son évolution récente
Provedor de dados: 5
Autores: De La Tourrasse, Guy.
Traditional tuna fisheries in France have been described very often and in a very good manner, and it would be superfluous to write a bibliography of the works dealing with this subject. The following few pages, resulting from observations and personal studies, aim to precise the specific and new aspect of one of these fisheries. An important share of our marine economy, they are carried out in three of the four metropolitan seas, as these fishes are not found in the English Channel; hence, from a professional point of view, three major types.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6702.pdf

Sur la présence de Mytilicola intestinalis Steuer le long de la côte de Belgique
Provedor de dados: 5
Autores: Leloup, E.
Le long des 60 kilomètres de la plage sablonneuse qui caractérise la côte belge, Mytilus edulis LINNÉ vit, à l'état sauvage, sur les ouvrages d'art construits par l'homme pour défendre le cordon des dunes littorales contre l'érosion de la mer. Ce mollusque recouvre les brise-lames d'un tapis uniforme d'individus serrés les uns contre les autres avec leurs siphons dirigés vers le haut. Soumises aux mouvements violents des vagues lors des marées biquotidiennes qui les couvrent et les découvrent alternativement, les moules dépassent rarement 3 cm. de longueur. Elles étaient parfois récoltées en hiver pour les mytiliculteurs hollandais qui les semaient dans les moulières de l'Escaut. Les moules s'accrochent également aux pilotis des estacades et aux blocs de...
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6764.pdf

On the sinus lumbosacralis, spina bifida occulta, and status dysraphicus in birds
Provedor de dados: 16
Autores: Jelgersma, H.C.
The sinus rhomboidalis sacralis or sinus lumbosacralis as it is named by Ariens Kappers (1920) is an interesting anatomical part of the lumbosacral region of the avian spinal medulla. It is found in birds only and neither in reptiles nor in mammals. Fig. 1 shows the lumbosacral part of the spinal medulla of Phoenicopterus Pig. 1. Spinal medulla of Phoenicopterus, dorsal view, with sinus lumbosacralis and corpus gelatinosum. From Imhof (1905). seen from the dorsal surface and Fig. 2 represents a diagrammatic transverse section through the lumbosacral part. These figures show some peculiarities that are found in birds only. All vertebrates with hind limbs have a lumbosacral enlargement of the spinal medulla, but in birds this enlargement has become more...
Tipo: Article / Letter to the editor
Palavras-chave: 42.83.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/318568

Some remarks on the Pulmonary Artery in snakes with two lungs
Provedor de dados: 16
Autores: Brongersma, L.D.
The respiratory organs of snakes show a great diversity according to genera and species. In the Boidae (two genera excepted; cf. Brongersma, 1951 a and 1951 b), and in Xenopeltis unicolor (Reinw.) both lungs are well developed, although the left is shorter than the right (Butler, 1895). The difference in length between the right and the left lung is not the same in all genera and species, but it also shows individual variations within the species. In the Anilidae the left lung has undergone further reduction than in the Boidae; in Cylindrophis rufus (Laur.) the left lung is still rather well developed, its length is 12% of that of the right lung; in Anilius scytale (L.) the left lung is rudimentary, its length being only 3.5% of that of the right lung; in...
Tipo: Article / Letter to the editor
Palavras-chave: 42.82.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/317881

Some nomenclatorial corrections to 'Investigations on Stylasteridae (Hydrocorals)' 1942
Provedor de dados: 16
Autores: Broch, H.
When discussing the genus Errina in my paper "Investigations on Stylasteridae (Hydrocorals),, (1942) I arrived at the conclusion held by Hickson (1912) that the species of the genus should be grouped in two, or possibly three, subgenera. It was pointed out that Hickson had erroneously used the designation "the Labiopora group" for the subgenus containing the type species Errina aspera (L.), and accordingly I proposed to name this subgenus Eu-Errina. For the other subgenus, viz., "the Errina group" of Hickson, the type species of which is Errina labiata Moseley, I introduced the name Labiata. A third group, viz., "the Spinipora group" of Hickson, was only casually mentioned by me, as I had no representative of this group at hand. The only species of this...
Tipo: Article / Letter to the editor
Palavras-chave: 42.72.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/318346

On a collection of birds from the Khwae Noi Valley, Western Siam
Provedor de dados: 16
Autores: Junge, G.C.A.; Kooiman, J.G.
The present paper deals with a collection brought together by J. G. Kooiman in 1946. After the defeat of Japan, some Dutch biologists, who during the war had worked as prisoners of war on the notorious Burma railroad, biologically explored the Khwae Noi valley. Kooiman joined this party as an ornithologist. The collection might have been larger, but shooting was limited by the exceedingly high prices of cartridges at that time. The lack of field glasses also was an inconvenience. The collection is of interest as it is the first from this part of Siam. Afterwards the collection was sent to the Rijksmuseum van Natuurlijke Historie, where it was worked out by Junge, who is responsible for the taxonomical part of the paper. Kooiman added the field notes....
Tipo: Article / Letter to the editor
Palavras-chave: 42.83.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/317771

Notes on Asrara latreille (Hymenoptera Sphecoidea)
Provedor de dados: 16
Autores: Verhoeff, P.M.F.
I. Grouping of European species of the genus Astata Latr. It is not my intention to anticipate in this paper a subgeneric division of the genus Astata 1). For the purpose of such division, it would be necessary to investigate more non-European material than at present is at my disposal. But at first view it seems to me that the European species may be divided into four distinct groups, which may be separated with the key given below. Two of the proposed groups (the stigma-group and the tricolor-group) form part of the subgenus Dryudella Spinola, as this subgenus has generally been understood; nevertheless, the differences between these two groups, namely in the shape of the clypeus and, in the females, in the habitus, seem to justify separating them;...
Tipo: Article / Letter to the editor
Palavras-chave: 42.75.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/318736

The coral Montipora monasteriata (Forsk.) in the Fiji Islands
Provedor de dados: 16
Autores: Boschma, H.
During a visit to the Fiji Islands, of about three weeks in March, 1949, through the kind help of Mr. Harold Gatty at Suva I had the opportunity to make trips to various coral reefs. On one of these trips, on March 18, to the reef of Tomberua, a small island to the south east of the large island Viti Levu, I collected an extensive material of various species of the genus Montipora. Among this material there is one colony of Montipora monasteriata (Forsk.), apparently the first to be reported from the Pacific region, as Crossland (1941, p. 35) states: "It is remarkable that the species, which is not uncommon in the Red Sea, has not appeared in any collection outside this area except in Gravier's from the Gulf of Aden." Forskål's (1775) short description of...
Tipo: Article / Letter to the editor
Palavras-chave: 42.72.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/318692

Notes on Hydrocorallia
Provedor de dados: 16
Autores: Boschma, H.
I. Introduction. When using here the name Hydrocorallia for a group of corals, it is not intended to regard this group as a recognized systematic unit. Since Moseley (1880) placed the Stylasteridae with the Milleporidae in the Hydrocorallinae, a separate sub-order of the Hydroids, it has been sufficiently pointed out that the families Milleporidae and Stylasteridae have little in common, and that their respective relations are with Hydroids of systematically different groups. Broch (1914) maintains that the family Milleporidae traces its origin to that of the Corynidae, whilst in his opinion the family Stylasteridae is a highly specialized group that has been derived from the Bougainvilliidae. Stechow (1923) came to the same conclusion, he also placed the...
Tipo: Article / Letter to the editor
Palavras-chave: 42.72.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/317782

Corrections in the Changes in the International Rules, etc
Provedor de dados: 16
Autores: NN.
In Flora Malesiana Bulletin No 8, 197-231, appeared a report on the changes in the international rules of botanical nomenclature made by the 7th Int. Bot. Congress at Stockholm (1950). Dr D.P. Rogers and Dr G.W. Martin, both members of the ad hoc Committee found some inaccuracies regarding the nomenclature of Fungi. They write: ”The multigraphed report of the Special Committee for Fungi contained numerous errors, which, because copies were furnished us very late, could not be corrected before distribution”. They are in favour of the following corrections: Rec. VIII. First sentence; after ”-phyta” insert ”(for Fungi, -mycota)”. Third sentence; after ”phytina” insert ”(for Fungi, -mycotina)”. Line ”1” under ”(b)”: delete ”(or autotrophic Thallophyta...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/532973

Een nieuwe kleine Gobiide vis met samengegroeide buikvinnen bij de man (Dormitator lophocephalus sp. nov.)
Provedor de dados: 16
Autores: Hoedeman, J.J.
Voorjaar 1949 ontving ik een kleine collectie levende vissen uit Suriname (Nederlands Guiana), door een zeeman verzameld in een poel nabij Paramaribo. Helaas is de juiste vindplaats niet nader aangegeven, dan enige kilometers ten zuiden van de hoofdstad. Onmiddellijk na ontvangst werden de vissen, die hier het onderwerp van bespreking zijn, in een groot gezelschapsaquarium (150 X 60 X 50 cm. hoog) ondergebracht, dat reeds werd bevolkt door verscheidene Nannostomini, Hasemania marginata, Rivulus cylindraceus, Acanthophthalmus kuhli, Dermogenus pusillus en Nannacara anomala en N. taenia.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/504706

Notes on the Fishes of the Cichlid Family I. Apistogramma cacatuoides sp. n
Provedor de dados: 16
Autores: Hoedeman, J.J.
The Dwarf-cichlid genus Apistogramma, very popular among aquarists and at present among students of animal behaviour, hitherto comprises about 16 forms, several of them hardly specifically distinguished, and probably only based on stages or sexes of other species. Nevertheless I found a new form among a small collection of fresh-water fishes, imported alive by a sailor from near Paramaribo, in Dutch Guiana. I had the opportunity to keep them in an aquarium for several months, and to study their behaviour. When at last they died I tried to identify this species, and it then appeared that they were new to science. They may, however, be identical with the species described by Innes as Apistogramma U2, of which I have been unable to find a scientific...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/505021

Some notes on Notodelphys rufescens Thorell, 1860, new to the Dutch Fauna
Provedor de dados: 16
Autores: Stock, J.H.
In September and October 1950, Mr. C. Swaneveld, of Zierikzee, and Mr. Jac. Viergever, of Serooskerke, collected some rich samples of Copepods, found alive in the branchial sac of certain species of Tunicates. The greater part of the Tunicates belonged to the Ascidian-species Ascidiella aspersa (O. F. Müller.) The peculiar little commensal lives in the branchial cavity, often in considerable numbers, with their posterior antenna fixed to the body wall of the Ascidian. The species of the genus Notodelphys stand lowest in the scale of species adapted to this curious mode of life : I observed them moving quickly through the water outside the Tunicate, in a jumping way. Especially when the water contains little oxygen, the animals leave their host through the...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/504809

Rows of small teeth in Ziphioid whales
Provedor de dados: 16
Autores: Boschma, H.
In Ziphioid Whales the toothrows as a rule have been subject to pronounced reduction, so that the number of teeth of fairly large size is restricted to one pair in the lower jaw. Even these often are concealed in the gum and then must be regarded as functionless, though especially in old males the tips of these teeth protrude above the gum and may be used for the capture of the prey. In many species, besides the larger teeth in the lower jaw, rows of smaller teeth have been found in both jaws, often completely hidden in the gum, sometimes with their tips protruding. In Tasmacetus shepherdi Oliver these smaller teeth are of fairly large size, they show signs of wear against their antagonists of the other jaw, indicating that here they are functional. The...
Tipo: Article / Letter to the editor
Palavras-chave: 42.74.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/318242

State of progress in Malaysian plant taxonomy
Provedor de dados: 16
Autores: NN.
Dr E.D. Merrill is working on a MS index to William Jack’s papers. Mr R.D. Hoogland, Leiden, has finished his research on Dilleniaceae. The results will be embodied in a revision of the family in Flora Malesiana, a revision of Indo-Malaysian Tetracera, and a monograph of Dillenia (incl. Wormia) the latter serving as a thesis at Leiden University. He finished a revision of Malay Peninsular Argyreia and has started work on a monograph of the genus Erycibe (Convolv.). His work on Convolvulaceae is to be added to Dr S.J. van Ooststroom’s who will compile the revision of Gonvolvulaceae for Flora Malesiana.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/533080

Bibliography
Provedor de dados: 16
Autores: NN.
Alphen de Veer, E.J. &amp; F.A. Verduyn Lunel: Kweekproeven met Intsia palembanica Miq. en Intsia bijuga O.K. (Tec-Tona 40, 1950, 336-345, 5 fig.). Data on germination and seedlings.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/533383

Studies on African Characid Fishes I. The tribe Alestidi (I)
Provedor de dados: 16
Autores: Hoedeman, J.J.
Among a recent importation from the Belgian Congo there was a multitude of lovely little aquariumfishes, mostly well-known to aquarists. but partly new to them, and some of these fishes even new to science. A large number of small ”Tetra’s” closely resembled the well-known species Petersius caudalis. Four perfectly preserved specimens (formol), were supplied to me by Mr. C. A. Spoelstra of Haarlem, a well-known aquarist-breeder. In order to identify this species, and designate its proper place, I started to study literature and material in the Museum. It then became evident that the classification and nomenclature of this group is far behind, a case somewhat similar to the one I recently discussed concerning the South-American Nannostomidi (Hoedeman, 1950...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/505046

Personal news
Provedor de dados: 16
Autores: NN.
March 1951 Dr J.C. Koningsberger, Director of the Botanic Gardens, Bogor, 1910 – 1918, died at The Hague, aged 84. Dr J. Mattfeld, well-known to Malaysian botanists by his excellent work on Papuan Compositae, commissioned Director of the Botanic Gardens and Herbarium at Berlin-Dahlem died Jan. 19, 1951, aged 57.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/533353

The geology of the Dalskog Dals-Rostock region Dalsland, Sweden
Provedor de dados: 16
Autores: Heybroek, P.
The Dalskog Dais-Rostock area lies in the Swedish province of Dalsland, to the west of lake Vänern. It lies entirely within the Upperud sheet of both the topographic (1926) and geological map (1870) and comprises parts of the parishes Gunnarsnäs, Dalskog and Ör. As shown by the outline map (fig. 1), the investigated region is situated in an area of gneiss-granites and supracrustal formations, which lies to the west of lake Vänern as an island in the great, highly metamorphic complex of gneisses of southwestern Sweden. In the adjoining table the geological events wich left their marks in the rocks of the Dalskog Dals-Rostock area are listed in chronological order. For the sake of clearness the table has been completed with data known from the adjoining...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/506012

The Podostemaceae of the New World. Part I
Provedor de dados: 16
Autores: Royen, P. van.
In deze publicatie is een deel der Amerikaanse Podostemaceae van de onderfamilie Podostemoideae opgenomen nl. de nauw verwante geslachten Apinagia, Marathrum, Rhyncholacis, Wettsteiniola, Lophogyne, Monostylis, Jenmaniella en het nieuwe geslacht Macarenia. Nagegaan wordt waarom deze geslachten verwant zijn. Uit het onderzoek is gebleken dat de geslachten Apinagia en Oenone, zoals die beschreven werden door Tulasne in 1852, niet als twee afzonderlijke geslachten gehandhaafd kunnen blijven. De indeling van de onderfamilie Podostemoideae, zoals Engler die in 1930 gaf, is gewijzigd in die zin dat de subtribus Mourerinae tot tribus is verheven en de subtribus Apinagiinae en Marathrinae met de tribus Eupodostemeae tot één tribus Eupodostemeae verenigd zijn. In...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/534743

A new species of Bat from Cambodge, Glischropus rosseti sp. nov
Provedor de dados: 16
Autores: Peng, Oey Hong.
Dr Junge of the „Rijksmuseum van Natuurlijke Historie te Leiden” has been so kind to lend me the following specimens of bats, registered as Tylonycteris pachypus (Temminck) (all in alcohol). reg. no. 273 ...... 3 males, 3 females ......... Java. „ „ 274 ...... 2 females (1, m) ............ Cambodge. „ „ 280 ...... 4 spec ........................ Annam. „ „ 1260 ...... 1 male, 1 female ............ Mt. Dapad, Borneo. „ „ 1420 ...... 4 spec. (v, w, x, y) ......... Buitenzorg, Java. „ „ 1645 ...... 34 spec. ........................ Malang, Oost-Java. When examining this material, I discovered that the 2 female specimens I and m of Cambodge (reg. no. 274), were misnamed. The label is reading:
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/505036

Miscellaneous information
Provedor de dados: 16
Autores: NN.
In commemoration to Mr C.T. White, the Royal Society of Queensland of which Mr White was a president, will publish a White Memorial Volume of its Proceedings. Reinwardtia. Onwards of 1950 the Bulletin du Jardin Botanique de Buitenzorg (Bulletin of the Botanic Gardens, Buitenzorg) has changed its name and has been named Reinwardtia in commemoration of the founder of the Botanic Gardens, Prof. Dr C.G.C. Reinwardt, who directed the Gardens 1817-1822. The size of the new journal is slightly smaller than the former series; subscriptions through G.C.T. van Dorp &amp; Co, Publishers &amp; Booksellers, Djalan Nusantara 22, Djakarta, Indonesia. Price per part $1.50 or the equivalent in other currency. Exchange is through the Bibliotheca, Djalan Raya 20, Bogor,...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/532927

Flora Malesiana, Series III: Bryophyta
Provedor de dados: 16
Autores: Wijk, R. van der.
Scope, organization, and purpose of Series III, Flora Malesiana (Musci and Hepaticae) are explained. Collaboration is asked on the following points: (a) To collect Mosses and Hepaticae in Malaysia and to add extensive and detailed data to the specimens (directions available on application to the Editor). (b) To send on loan or donate existing collections. (c) To forward data concerning collectors, travels, and collections made. (d) To name (if necessary provisionnally) all unnamed specimens. (e) To collect data from literature (and to forward reprints). (f) To join the team of bryologists revising groups of Malaysian Bryophyta and to write the Editor about planned research.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/533190

A taxonomic study of the Phytoseiinae (Family Laelaptidae) Predaceous upon Tetranychidae of Economic importance
Provedor de dados: 16
Autores: Nesbitt, H.H.J.
The increased importance which the European red mite (Paratetranychus pilosus (Can. et Fanz.)) (= Metatetranychus ulmi (Koch)) has assumed in recent years has led to an intensive study of its biology and natural history. In the course of these investigations many workers, and in particular those in Nova Scotia (vide Lord, 1949), have become convinced that this pest can be controlled, on apple trees at least, by natural means and that some of the most active agents in its eradication are the representatives of that group of predaceous mites which Vitzthum (1941) placed in the subfamily Phytoseiinae Ber'lese, 1916 1). As the late Dr. A. C. Oudemans of Arnhem included many if not most of these species in the genus Typhlodromus as he conceived it, this paper...
Tipo: Article / Letter to the editor
Palavras-chave: 42.74.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/317603

The Papua and New Guinea Herbarium
Provedor de dados: 16
Autores: Womersley, J.S.; Botanist, Forest.
A short account of the establishment of the Herbarium of the Department of Forests, Papua and New Guinea appeared on p. 61, no 3, volume I of Flora Malesiana Bulletin. This Herbarium has now been firmly established and is constantly receiving collections of plants from various parts of Papua and New Guinea. As a routine measure these are being distributed to the following herbaria: The Queensland State Herbarium at Brisbane, Queensland; The Herbarium of the Division of Plant Industry, Commonwealth Scientific and Industrial Research Organisation, Canberra; The Arnold Arboretum, America; The Herbarium at Kew, England; The Herbarium at Leiden, Holland; The Herbarium at Bogor, Indonesia; The Herbarium at Singapore, Malay States; The Herbarium of the Imperial...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/532813

La géologie du massif de Gigondas
Provedor de dados: 16
Autores: Fuchter, J.H.G.
A l’E d’Orange-Avignon, au pied du Mt. Ventoux, s’élève un petit massif, qui est limité au N et à l’W par l’Ouvèze (fig. 1), à l'E par la route de Vaison—Malaucène—le Barroux et au S par la route du Barroux à Vacqueras. Dans la littérature géologique ce massif se trouve le plus souvent indiqué sous le nom de massif de Gigondas, d’après le village situé sur le versant occidental du massif.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/505937

Some notes upon the anatomy of Tropidophis and Trachyboa (Serpentes)
Provedor de dados: 16
Autores: Brongersma, L.D.
In literature only very scanty information is to be found about the viscera of the Boid genera Tropidophis and Trachyboa, and therefore I believed it worth while to publish some notes which I made during dissections of the following species and subspecies: Tropidophis melanurus (Schleg.), Tropidophis maculatus haetianus (Cope), Tropidophis pardalis pardalis (Gundl.) and Trachyboa gularis Ptrs. The notes are in no way exhaustive; the specimens have been preserved in alcohol for a long time, and therefore it was not possible to study all features in detail. All but two genera of the Boidae have two well developed lungs. One of these two exceptions was mentioned already by Cope (1894, pp. 218, 220: Ungualia; 1900, p. 697), viz., the genus Ungalia (i.e.,...
Tipo: Article / Letter to the editor
Palavras-chave: 42.82.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/319234

Rediagnosis of the Old World Cyprinodont genus Aphanius
Provedor de dados: 16
Autores: Hoedeman, J.J.
Compared with their New World relatives of the subfamily Cyprinodontinae, the Old World Cyprinodonts are but little known. However, some interesting accounts on Turkish species, discovered by Kosswig, Sözer and Aksiray, have recently been published. Besides the species known, several new forms and species are described. While compiling an account on these fishes suitable for the home aquarium (Hoedeman &amp; Bronner, 1950—1951), we felt some characters need reexamination, not only of Aphanius, but also of the North African genus Tellia which is said to differ from Aphanius only in the absence of ventral fins.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/504765

Description d’une espèce nouvelle, type d’un genre inédit, appartenant à la famille des Cynoglossidae, sous-famille des Cynoglossinae
Provedor de dados: 16
Autores: Chabanaud, Paul.
Le processus préoral est court. L’œil migrateur dépasse le bord antérieur de l’œil fixe de plus de la moitié de son propre diamètre. La narine exhalante zénithale est présente. La lèvre mandibulare zénithale est hypertrophiée en un petit nombre de larges processus nullement ciliés. Koμψòs, élégant; μεwiaμa, sourire.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/504685

Sur deux Cynoglossus de la collection ichthyologique du Zoölogisch Museum, Amsterdam
Provedor de dados: 16
Autores: Chabanaud, Paul.
Sous le nom de Cynoglossus xiphoideus Günther, la collection ichthyologique du Zoölogisch Museum, Amsterdam possède 2 spécimens dont l’un est originaire de Shanghaï et l’autre, de la mer de Timor. Le spécimen de Shanghaï a été cédé au Zoölogisch Museum (sans doute à titre d’échange) par le British Museum, en 1909: c’est feu Günther qui est responsable de sa détermination. Le spécimen de la mer de Timor a été capturé par le „Siboga”: il a été mentionné par Weber (1913), puis par Weber et de Blaufort (1929). De teinte également très claire, ces deux spécimens semblent avoir subi une action décolorante. Tous deux sont des femelles; ni l’un ni l’autre n’appartiennent à l’espèce désignée par leur étiquette respective, espèce avec laquelle ils n’ont guère de...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/505013

Notes on cave-dwelling Microlepidoptera with description of a new genus and species from East Java (family Oinophilidae)
Provedor de dados: 16
Autores: Diakonoff, A.
Records of cave-dwelling Lepidoptera are scarce in comparison with those in other orders of Insects, e.g., Coleoptera, of which even a whole subfamily (Silphidae, Bathysciinae) is in a most remarkable way adapted to this peculiar habitat. In the group of the so-called Microlepidoptera we could find examples of some eight species only, belonging to different families. Apparently none of them is a true cave-dweller, i. e., a permanent resident of caves and really adapted to life in total darkness. Crypsithyris spelaea Meyrick, 1908 (Tinaeidae) only has been regarded as an exception. This species has been described from a large cave in Moulmein, Burma, and originally was reported as "being practically bleached or colourless", but with normally developed eyes...
Tipo: Article / Letter to the editor
Palavras-chave: 42.75.
Ano: 1951
URL: http://www.repository.naturalis.nl/record/318865

Monograph on the Foraminifera of the type-locality of the Maestrichtian (South-Limburg, Netherlands)
Provedor de dados: 16
Autores: Visser, A.M.
The description of the Foraminifera of the type-locality of the Maestrichtian and its stratigraphical value is the object of this thesis. This type-locality is found in the Southern part of the Dutch province of Limburg.
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/505980

Book reviews
Provedor de dados: 16
Autores: Steenis, C.G.G.J. van; Steenis, C.G.G.J. van; Steenis, C.G.G.J. van; Steenis, C.G.G.J. van; Steenis, C.G.G.J. van.
Survey of the flora of Bikini and other atolls before the atomic-bomb tests were made. The phytoplancton is excluded from the present carefully written and extensive analysis, which is most instructive to every student of tropical coral island floras. A general introduction furnishes an excellent view on Phanerogamic vegetation and land flora, the physical conditions of the islands, and the part played by different lements in coral building. The major part of the book is occupied by descriptions of the plants collected; marine Algae, of course, predominate. Several new spp. have been described e.g. in Halimeda, Rhipilia, Caulerpa, Pocockiella, Acrochaetium, Porolithion, Botryodiplodia and Fungi, etc. Latin diagnoses of new forms and species and a...
Tipo: Article / Letter to the editor
Ano: 1951
URL: http://www.repository.naturalis.nl/record/532817

南樺太における硬質春蒔小麦「樺太2号」および「樺太3号」の育成について
Provedor de dados: 19
Autores: 進藤, 省三; Sindo, Shozo.
Ano: 1951
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1240

犬の喀痰中に発見されたEucoleus aerophilus卵について
Provedor de dados: 19
Autores: 中村, 洋吉; Nakamura, Yokichi.
Ano: 1951
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1238

犬の伝染性因形細胞肉腫の移植試験
Provedor de dados: 19
Autores: 上田, 晃; Ueda, Akira.
Ano: 1951
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1237

馬匹の内部寄生虫駆除におけるPhenothiazineの応用について
Provedor de dados: 19
Autores: 坂井, 稔; 小西, 辰雄; Sakai, Minoru; Konishi, Tatsuo.
Ano: 1951
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1236

片持梁の撓みについて
Provedor de dados: 19
Autores: 橋本, 弘志; Hashimoto, Hiroshi.
Ano: 1951
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1241

ZSCHOKKE氏馬赤血球數計算法の檢討並びにその改良法について
Provedor de dados: 19
Autores: 三宅, 勝; Miyake, Masaru.
Ano: 1951
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2047

本邦産牧野草類の飼料成分
Provedor de dados: 19
Autores: 大原, 久友; Ohara, Hisatomo.
Ano: 1951
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1239

La situation de l’ostréiculture dans le Bassin de Chasse d’Ostende de 1939 à 1948
Provedor de dados: 27
Autores: Leloup, E.; Halewyck, R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oyster culture Ostrea edulis Linnaeus; 1758 ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1951
URL: http://www.vliz.be/imisdocs/publications/237985.pdf

Table Margarine in Australia
Provedor de dados: 31
Autores: Lloyd,   Alan G.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1951
URL: http://purl.umn.edu/8902

PRODUCTION TRENDS AND PROBLEMS OF COTTON AS RELATED TO PUBLIC POLICY
Provedor de dados: 31
Autores: Ratchford,   C.B.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1951
URL: http://purl.umn.edu/17371

METHODS WE HAVE USED
Provedor de dados: 31
Autores: Mauch,   Arthur.
Tipo: Conference Paper or Presentation
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1951
URL: http://purl.umn.edu/17368

ECONOMIC RESEARCH OF INTEREST TO AGRICULTURE, MAY 6, 1951
Provedor de dados: 31
Autores: Cummings,   Orpha E.
This bibliography of Giannini Foundation members' publications, Economic Research of Interest to Agriculture was first issued on May 6, 1951, the eighty-first birthday of A.P. Giannini, and included the Giannini Foundation of Agricultural Economics members' works from 1929 through 1950. The first three issues were compiled and edited by the Giannini Foundation's first librarian, Orpha E. Cummings, 1930-1958. The issues that followed were edited by librarians, Mary Lida Eakin, 1958-1967; Virginia A. Fox, 1967-1980; and Grace Dote, 1970-2001.
Tipo: Report
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1951
URL: http://purl.umn.edu/7276

Contents Page
Provedor de dados: 31
Tipo: Journal Article
Ano: 1951
URL: http://purl.umn.edu/8904

Costs and Returns from Poultry
Provedor de dados: 31
Autores: Nodland,   Truman R.; Hady,   Frank T.; Pond,   George A.
Tipo: Report
Palavras-chave: Livestock Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/109365

Book Notes
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1951
URL: http://purl.umn.edu/8903

Yolo County, Agricultural Commissioners’ Crop Reports, 1938-1951
Provedor de dados: 31
Includes individual reports from each year for 1938-1951 (1942-1945 not issued).
Tipo: Report
Palavras-chave: Agriculture; Statistics; Crop Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/99920

Annual Report of the Farm Management Service for Veterans Taking On-the-Farm Training in Northern Minnesota 1950
Provedor de dados: 31
Autores: Nodland,   Truman R.; Routhe,   H.G.; Dennistoun,   Rollin M.; Pond,   George A.
Tipo: Report
Palavras-chave: Farm Management.
Ano: 1951
URL: http://purl.umn.edu/109363

Riverside County, Agricultural Commissioners’ Crop Reports, 1943-1951
Provedor de dados: 31
Includes individual reports from each year for 1943-1951.
Tipo: Report
Palavras-chave: Agriculture; Statistics; Crop Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/95267

Editorial - Feed Price Anomalies
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1951
URL: http://purl.umn.edu/9020

The Distribution of Citrus Fruit Grown on the Murrumbidgee Irrigation Area
Provedor de dados: 31
Autores: Yorke,   Leo C.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/8965

GROUP DISCUSSION OF THE ALTERNATIVES FOR ECONOMIC COOPERATION
Provedor de dados: 31
Autores: Hathaway,   Dale E.
Tipo: Conference Paper or Presentation
Palavras-chave: Institutional and Behavioral Economics.
Ano: 1951
URL: http://purl.umn.edu/17360

Contents Page
Provedor de dados: 31
Tipo: Journal Article
Ano: 1951
URL: http://purl.umn.edu/8968

CRITERIA FOR JUDGING PUBLIC POLICIES AS THEY AFFECT ECONOMIC PROGRESS AND INTERDEPENDENCE
Provedor de dados: 31
Autores: Westcott,   George W.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1951
URL: http://purl.umn.edu/17376

CALLING ALL DOCTORS
Provedor de dados: 31
Autores: Varner,   D.B.
Tipo: Conference Paper or Presentation
Palavras-chave: Health Economics and Policy.
Ano: 1951
URL: http://purl.umn.edu/17370

SELECTED BIBLIOGRAPHY ON INTERNATIONAL AFFAIRS
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Financial Economics.
Ano: 1951
URL: http://purl.umn.edu/17369

BACKGROUND AND EXTREME ALTERNATIVES IN FOREIGN POLICY
Provedor de dados: 31
Autores: Ogg,   Wallace E.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1951
URL: http://purl.umn.edu/17367

Annual Report of the Farm Management Service for Veterans Taking On-the-Farm Training in Southeastern Minnesota 1950
Provedor de dados: 31
Autores: Nodland,   Truman R.; Pond,   George A.; Dennistoun,   Rollin M.; Routhe,   H.G.
Tipo: Report
Palavras-chave: Farm Management.
Ano: 1951
URL: http://purl.umn.edu/109364

END MATERIALS
Provedor de dados: 31
Includes: List of Participants
Tipo: Conference Paper or Presentation
Ano: 1951
URL: http://purl.umn.edu/17372

Cost of Operating Some Farm Machines
Provedor de dados: 31
Autores: Nodland,   Truman R.; Pond,   George A.
Tipo: Report
Palavras-chave: Farm Management.
Ano: 1951
URL: http://purl.umn.edu/109366

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover, National Committee on Agricultural Policy, Foreword, Introduction, Contents Page
Tipo: Conference Paper or Presentation
Ano: 1951
URL: http://purl.umn.edu/17363

REPORT OF SUBCOMMITTEE ON INTERNATIONAL AFFAIRS
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Financial Economics.
Ano: 1951
URL: http://purl.umn.edu/17366

The Research Program in Agricultural Economics and Rural Sociology
Provedor de dados: 31
Autores: Schickele,   Rainer.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development.
Ano: 1951
URL: http://purl.umn.edu/119427

AMERICAN FOREIGN POLICY
Provedor de dados: 31
Autores: Wilcox,   Robert W.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1951
URL: http://purl.umn.edu/17365

CLOSING COMMENTS
Provedor de dados: 31
Autores: Peck,   F.W.
Tipo: Conference Paper or Presentation
Ano: 1951
URL: http://purl.umn.edu/17361

Contents Page
Provedor de dados: 31
Tipo: Journal Article
Ano: 1951
URL: http://purl.umn.edu/8856

PAST TRENDS AND PRESENT INTERRELATIONS
Provedor de dados: 31
Autores: Smith,   Mervin G.
Tipo: Conference Paper or Presentation
Palavras-chave: Institutional and Behavioral Economics.
Ano: 1951
URL: http://purl.umn.edu/17374

Present Farm Economy in Three Proposed Irrigation Areas of North Dakota
Provedor de dados: 31
Autores: Schaffner,   LeRoy W.
Tipo: Technical Report
Palavras-chave: Farm Management; Land Economics/Use.
Ano: 1951
URL: http://purl.umn.edu/119426

Organization in the New South Wales Banana Industry
Provedor de dados: 31
Autores: McFarlane,   G.C.
Tipo: Journal Article
Palavras-chave: Industrial Organization.
Ano: 1951
URL: http://purl.umn.edu/9024

Book Notes
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1951
URL: http://purl.umn.edu/8857

BACKGROUND MATERIAL FOR PUBLIC POLICY EDUCATION ON THE PROBLEM OF INFLATION
Provedor de dados: 31
Autores: Hathaway,   Dale E.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1951
URL: http://purl.umn.edu/17378

Prospective Marketing Position of Farm Products Adaptable to Irrigation in North Dakota
Provedor de dados: 31
Autores: Podany,   Joseph C.
Tipo: Technical Report
Palavras-chave: Farm Management; Land Economics/Use; Marketing.
Ano: 1951
URL: http://purl.umn.edu/119428

ANNUAL REPORT OF THE SOUTHWESTERN MINNESOTA FARM MANAGEMENT SERVICE 1950
Provedor de dados: 31
Autores: Nodland,   Truman R.; Pond,   George A.; Tyvand,   J.A.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1951
URL: http://purl.umn.edu/13102

Some Aspects of Land Utilization on Dairy Farms on the Lower North Coast
Provedor de dados: 31
Autores: Rutherford,   John.
Tipo: Journal Article
Palavras-chave: Land Economics/Use; Livestock Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/8858

Editorial - Farmers' Fodder Reserves
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1951
URL: http://purl.umn.edu/8901

SELECTED BIBLIOGRAPHY ON INFLATION AND ITS CONTROL
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Financial Economics.
Ano: 1951
URL: http://purl.umn.edu/17379

Annual Report of the Farm Management Service for Veterans Taking On-The-Farm Training in Southwestern Minnesota 1950
Provedor de dados: 31
Autores: Dennistoun,   Rollin M.; Routhe,   H.G.; Nodland,   Truman R.; Pond,   George A.
Tipo: Report
Palavras-chave: Farm Management.
Ano: 1951
URL: http://purl.umn.edu/52679

Editorial - Rural Society in Transition
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Community/Rural/Urban Development.
Ano: 1951
URL: http://purl.umn.edu/8967

The Shortage of Protein Concentrates in New South Wales
Provedor de dados: 31
Autores: Lloyd,   Alan G.
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/8969

SOME OF THE FACTORS CONTRIBUTING TO ECONOMIC PROGRESS WHICH HAVE IN TURN ACCOUNTED FOR THE GROWING INTERDEPENDENCE OF AGRICULTURE AND OTHER SEGMENTS OF OUR ECONOMY
Provedor de dados: 31
Autores: Timm,   Tyrus R.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1951
URL: http://purl.umn.edu/17377

THE BASIS FOR ECONOMIC COOPERATION
Provedor de dados: 31
Autores: Mauch,   Arthur.
Tipo: Conference Paper or Presentation
Palavras-chave: Institutional and Behavioral Economics.
Ano: 1951
URL: http://purl.umn.edu/17364

Machinery Usage on Wheat Farms in the Central-West
Provedor de dados: 31
Autores: Druce,   P.C.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries; Farm Management.
Ano: 1951
URL: http://purl.umn.edu/9023

ANNUAL REPORT OF THE SOUTHEASTERN MINNESOTA FARM MANAGEMENT SERVICE 1950
Provedor de dados: 31
Autores: Nodland,   Truman R.; Pond,   George A.; Tyvand,   J.A.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1951
URL: http://purl.umn.edu/13124

The Cost of Operating Farm Machinery on Central-Western Wheat Farms
Provedor de dados: 31
Autores: Druce,   P.C.
One of the principal objectives of the survey of a group of wheat farms in the central-west of New South Wales, conducted by the Division of Marketing &amp; Agricultural Economics in February and March, 1951, was to ascertain the cost of operating machinery in use in the wheat industry.  An account of the survey, which was carried out on 94 farms in the Shires of Goobang and Jemalong and in the Municipalities of Parkes and Forbes) was published in the previous issue of this journal'.  In this article consideration will be given to conclusions drawn from this survey as to the cost of operating tractors and selected implements. The implements selected for consideration-the twin-disc plough ("sundercut"), scarifier, combine and header-include all but two of...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries; Farm Management.
Ano: 1951
URL: http://purl.umn.edu/8966

Imperial County, Agricultural Commissioners’ Crop Reports, 1920-1951
Provedor de dados: 31
Includes individual reports from each year for 1920-1951(1922, 1924-26, 1934, 1936 not available).
Tipo: Report
Palavras-chave: Agriculture; Statistics; Crop Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/62268

Editorial - Structural Changes in the Dairy Industry
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/8855

REPORT OF SUBCOMMITTEE ON INTERRELATIONSHIPS OF AGRICULTURE AND OTHER SEGMENTS OF OUR NATIONAL ECONOMY
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1951
URL: http://purl.umn.edu/17359

REPORT OF SUBCOMMITTEE ON INFLATION
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1951
URL: http://purl.umn.edu/17358

Contents Page
Provedor de dados: 31
Tipo: Journal Article
Ano: 1951
URL: http://purl.umn.edu/9022

San Bernardino County, Agricultural Commissioners’ Crop Reports, 1946-1951
Provedor de dados: 31
Includes individual reports from each year for 1946-1951.
Tipo: Report
Palavras-chave: Agriculture; Statistics; Crop Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/95889

SELECTED BIBLIOGRAPHY ON AGRICULTURAL PRODUCTION POLICY
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1951
URL: http://purl.umn.edu/17375

INFLATION CONTROL AND GREATER PRICE STABILITY (A DISCUSSION)
Provedor de dados: 31
Autores: Bottum,   J. Carroll.
Tipo: Conference Paper or Presentation
Palavras-chave: Demand and Price Analysis.
Ano: 1951
URL: http://purl.umn.edu/17362

AGRICULTURAL PRODUCTION PROGRAMS IN THE CORN BELT
Provedor de dados: 31
Autores: Case,   H.C.M.
Tipo: Conference Paper or Presentation
Palavras-chave: Production Economics.
Ano: 1951
URL: http://purl.umn.edu/17373

The Economic Outlook for Bananas
Provedor de dados: 31
Autores: McFarlane,   G.C.
An account of the development and organization of the New South Wales banana industry, with an analysis of seasonal and other factors affecting supplies and prices, has been published in the last two issues of this journal'. The main purpose of this present and final article is to discuss marketing costs and comparative movements in wholesale and retail prices. The survey concludes with some comments on matters associated with the immediate outlook for the industry.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1951
URL: http://purl.umn.edu/8964

Book Notes
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1951
URL: http://purl.umn.edu/9021

Marketing New South Wales Bananas
Provedor de dados: 31
Autores: McFarlane,   G.C.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries; Marketing.
Ano: 1951
URL: http://purl.umn.edu/8905

Influência do cloro, sôbre a composição do caldo da cana de açúcar Co 290, aplicado no solo, na forma de cloreto de sódio
Provedor de dados: 43
Autores: Moraes,J. Mello; Almeida,J. R.; Coury,T.; Gomes,F. Pimentel; Valsechi,O.; Ranzani,G.; Kiehl,E. J.
Considering the economic importance of the sugar industry among ourselves, the authors carried out a field experiment (Latin square) with Co 290 sugar cane, on a white sandy soil of Piracicaba, State of São Paulo, Brazil, applying NaCl in increasing rates (from 6.8 to 54.5 grams per plant), in order to study the effects of chlorides, on productivity and on the composition of juice. No toxic or stimulating effect was found, and there was no change in yield, in degree of purity of the juice, in general aspect of plants or in colour of leaves and culms. No difference was observed between potassium sulphate or chloride, as source of potash for sugar cane culture. Data collected and the literature cited suggest: (a) that the use of the variety Co 290 is...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100008

Pequena contribuição à história natural de alguns Fringillidae do Brasil (Passeriformes)
Provedor de dados: 43
Autores: Lordello,Luiz Gonzaga E.
A short contribution to the Natural History of some Brazilian Frigillidae The following species of Brazilian Fringillidae are mentioned here, the first of which being more deeply studied: 1 - Oryzoborus angolensis angolensis (Linnaeus). 2 - Oryzoborus crassirostris maximiliani Cabanis. 3 - Cyanocompsa cyanea sterea Oberholser. 4 - Coryphospingus cucullatus rubescens (Swainson). About each one of the referred species, the Author gives native names, some datas and observations on its reproduction and behaviour under captivity, as well as on its natural alimentation. Some considerations about the geographical races of Oryzoborus angolensis: O. a. angolensis (Linnaeus) and 0. a. torridus (Scopoli) -are also made. Both the races occur in Brasil and, according...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100022

O tratamento de pré-emergência com o 2, 4-D no milho
Provedor de dados: 43
Autores: Montenegro,Heitor W. S.; Krug,Helmut Paulo.
In order to study the action of herbicides - sodium salt, amine salt and ester of 2,4-D, TCA and 2,4,5-T a preliminary experiment for pre-emergence weed control was corried out, and the corresponding results are given in table I and II. The corn used in the experiments was of the flint type 1A 3531. The loam soil on which the experiment has been carried out is called "terra roxa". All treatments were highly significant when compared with the check plots, except the 2B one in the control of broad leaf weeds, and 4B in the control of grass weeds. Among these treatments there are no significant differences. But we note the following: (table I). a) treatments of higher concentrations were superior to lower ones. b) the treatments which gave the best control...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100016

Nota sôbre um possível fator sub-letal em gado Holstein-Friesian
Provedor de dados: 43
Autores: Jardim,W. R.; Peixoto,A. M.
In this note the A. A. relate the occurrence of a possible sub-lethal factor, on the Holstein-Friesian herd of Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba. The sire Horto was mated with his own mother, Brisa, and so, were obtained two calves, a male and a female, consecutively. Both the calves presented flexion and deviation of the fore legs. The sire's death has not alloved further observations. The study of these history cases excludes the mother's nutritional deficiency, as the cause of related phenomenon. In the consulted literature, VEIGA and MEAD et al. relate similar cases, although these are observed in other breeds of cattle The A. A. admit that cause of occurrence is a possible sublethal recessive factor, put in evidence by...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100017

Não existe «Nova Sistemática»
Provedor de dados: 43
Autores: Piza Jor.,S. de Toledo.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100002

A terra na alimentação de pintos
Provedor de dados: 43
Autores: Trivelin,A. P.
This paper deals with an experiment to determine the optimum period (number of days) in fattening chickens. Thirty chickens R. I. R. were numbered, weighed and feeded in crate, with one standard ration (17% crude protein). The chickens were weighted every two days and the results obtained indicate the optimum is reached between 12 and 16 days of feeding. It was observed that after 16 days the weights stop or decrease progressively as showed by the Grafic I.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100026

Fatôres que afetam a determinação da vitamina C na goiaba (Psidium guajava L.)
Provedor de dados: 43
Autores: Gurgel,J. T. A.; Soubihe Sobrinho,J.; Malavolta,E.; Leme Júnior,J.
In the present paper the authors deal with the content of ascorbic acid in guavas (Psidium guajava L.) and the methods of sampling used. Ascorbic acid was determined directly in the photoeletric colorimeter (EEL), after extraction with a 4 per cent solution of oxalic acid. Guavas from various parts of State of S.Paulo were used and the general mean found was around 100 mgm of ascorbic acid per 100 gm fresh weight of the material used for extraction. It was found that there is great variation in the ascorbic acid content according to the condition of the fruit: Ascorbic acid Condition content in Mean mgm/100 gm Green and hard 93,36 - 119,54 102,43 Small green 57,34 - 92,30 83,40 Firm ripe 71,28 - 115,98 90,32 Overripe 63,22 - 85,98 77,36 Of the diferent...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100019

Uma questão relativa ao traçado de curvas em estradas de rodagem
Provedor de dados: 43
Autores: Nogueira,Izaías Rangel.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100023

Bases para o estudo da genética de populações dos Hymenoptera em geral e dos Apinae sociais em particular
Provedor de dados: 43
Autores: Kerr,Warwick E.
This paper deals with problems on population genetics in Hymenoptera and particularly in social Apidae. 1) The studies on populations of Hymenoptera were made according to the two basic types of reproduction: endogamy and panmixia. The populations of social Apinae have a mixed method of reproduction with higher percentage of panmixia and a lower of endogamy. This is shown by the following a) males can enter any hive in swarming time; b) males of Meliponini are expelled from hives which does not need them, and thus, are forced to look for some other place; c) Meliponini males were seen powdering themselves with pollen, thus becoming more acceptable in any other hive. The panmixia is not complete owing to the fact that the density of the breeding population...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100014

Endotoquia matricida em Rhabditis sp. (Nematoda, Rhabditidae)
Provedor de dados: 43
Autores: Lordello,Luiz Gonzaga E.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100007

Estudo comparativo entre silagem de milho e cana taquara na alimentação suplementar de vacas leiteiras
Provedor de dados: 43
Autores: Jardim,W. R.; Peixoto,A. Mendes; Silveira Filho,S.
The A. A. compare corn silage (Zea mays L.) with sugar cane (Saccharum sinensis Roxb.) in the supplementary feeding of dairy cow. Both the feeds were studied in relation to the following points: composition and nutritive value; influence of milk production, milk fat, milk acidity and body weight; cost of production. Both corn silage and sugar cane were analysed by ordinary methods, and their digestibility was determined by means of digestibility coefficients; their composition and nutritive value are, practically, equivalent, but silage showed slight superiority. The feeding experiment was carried out with two groups of six Holstein Friesian cows each, of the Escola Superior de Agricultura "Luiz de Queiroz" herd. Both groups were fed with the same basic...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100009

Notas sôbre a evolução da Sassurana - Megalopyge lanata (Stoll, 1780). (Lep., Heterocera, Megalopygidae)
Provedor de dados: 43
Autores: Lordello,Luiz Gonzaga E.
This paper is a small contribution to the knowledge of Megalopyge lanata (Stoll, 1780). The caterpillars of this moth are called " Sassurana" and are very known by the fact of having the body densely covered with long hairs, among which are some setae connected with poison glands. They damage the leaves of a large number of plants, enclosed in at least 14 botanical families, being therefore poly-phagous. M. lanata has a great taxonomical importance for it being the type of the family Megalopygidae Berg, 1882. The Author presents some notes on the various common names used for it, on its known natural enemies and also about the biology, according to the observations made by him in the Laboratory of Zoology, of the Escola Superior de Agricultura "Luiz de...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100013

A esperança matemática e algumas das suas aplicações à teoria da amostragem
Provedor de dados: 43
Autores: Gomes,Frederico Pimentel.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100021

A lei de Mitscherlich e a análise da variância em experiências de adubação
Provedor de dados: 43
Autores: Gomes,Frederico Pimentel.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100015

Tabelas de polinômios para interpolação da equação de Mitscherlich
Provedor de dados: 43
Autores: Gomes,Frederico Pimentel; Nogueira,Izaias Rangel.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100003

A agonia do gen: teorias corpusculares de hereditariedade e papel dos cromossomos
Provedor de dados: 43
Autores: Piza Jr.,S. de Toledo.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100020

Em tôrno da questão "deficiências minerais em sisal e a necrose da base das fôlhas"
Provedor de dados: 43
Autores: Coury,Tufi.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100018

Análise de poliembrionia em Citrus, máxime em toranjas
Provedor de dados: 43
Autores: Gurgel,J. T. A.; Soubihe Sobº,J.
1 - This paper is a joined publication of the Dept. of Genetics, Escola Superior de Agricultura "Luiz de Queiroz", University of São Paulo, and Secção de Citricultura e Frutas Tropicais, Instituto Agronômico, de Campinas, and deal with the number of seed per fruit and the polyembryony in Citrus, with special reference to the pummelos (C. grandis). 2 - For C. pectinifera, hibrid limon x acid lime, C. histrix and Citrus sp. the mean of seeds per fruit is 5,8 - 17,3 - 30,2 -94,6; for 14 pummelos the average was 100 and the range of variation 11 to 185 seeds per fruit. For the four above mentioned Citrus the cotyledons were classified into 3 types: big (near 8 mm.), medium (near 6 mm) and small (near 4 mm) and for the pummelos there was only one size of...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100029

Nota preliminar sôbre a determinação biológica do enxofre em solos por meio de Aspergillus niger
Provedor de dados: 43
Autores: Malavolta,E.; Galli,F.; Nogueira,I. R.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100011

Sôbre um sistema de equações relativas a um modêlo matemático de populações de Himenópteros endogâmicos
Provedor de dados: 43
Autores: Gomes,Frederico Pimentel.
This paper deals with the solution of a system of equations relating with a mathematical model of populations of endogamic Hymenoptera. The Author proves that, unless inequality (5.1) 4R5 + 8R R4 - 4R R³ + 8R² (R -1) R² - A a A a A a a A - R² (4R² + 4R - 1) R +2R³ &lt; 0 a a A a is satisfied, one of the genes is eliminated from the population. He shows that the relative frequencies of different kinds of matings in the population can be obtained when the root R between zero and VRa of equation 2R4 + 2R³ -2R² (RA + Ra) - R(RA +Ra) + 2RA Ra =0 is known. In special, if we let b = RA / Ra &amp;gt; 1 , inequation (5.1) shows that we must have __________________ b³ + 2b² + b + V2b4 + 2b³ - 2b² + 2b Ra &lt; __________________________________ = f(b) 2 (b4 + 2b³ +...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100005

O excremento de vaca na alimentação de pintos em crescimento
Provedor de dados: 43
Autores: Bergamin,Armando.
Foram tomados 2 lotes de pintos Rhode Island Red de 40 dias de idade que foram submetidos, o lote A a uma alimentação com ração sem proteina de origem animal, na qual a farinha de carne foi substituida por igual quantidade de farelo de torta de sementes de algodão, e adicionada à mesma 2 quilos de excremento de vaca, colhido fresco, secado ao sol e triturado; o lote B, que serviu de testemunha continha os mesmos ingredientes, com exceção de excremento de vaca e da torta de algodão, em lugar da qual figurava a farinha de carne. Alimentadas durante 6 semanas as aves se comportaram de maneira idêntica, acusando as do lote A um aumento leve e progressivo do peso médio, embora sem diferença estatística. O excremento de vaca foi satisfatório e supriu as...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100025

O cereal de Adlay: estudo de seu valor agrícola e nutricional para aves
Provedor de dados: 43
Autores: Torres,A. Di Paravicini; Bergamin,Armando.
Both experiments confirm Job's tears are inadequate as poultry feed due the low growing and high mortality shown on the groups receiving Job's tears meal. Considerations are done by the authors about Coix crops, that do not seem economical on the general condition of the country.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100024

Considerações sôbre o emprego de variedades sintéticas no melhoramento do milho: I - sintéticos simples
Provedor de dados: 43
Autores: Brieger,F. G.
1) Inicialmente foi dado um breve resumo dos métodos básicos do melhoramento no milho os quais podem ser reunidos em dois grupos principais: o processo do milho híbrido, com as suas variantes, e os processos dos sintéticos. Estes últimos podem ainda ser subdivididos em duas categorias: os sintéticos simples e os sintéticos balançados. Na obtenção dos sintéticos simples toma-se inicialmente em consideração a capacidade combinatória das linhagens a serem misturadas, e se executa em cada geração de sintético uma seleção massal de conservação. Nos balançados devemos acrescentar uma forte seleção, na fase preparatória, contra todos os híbridos que dão segregações mendelianas fortes demais. 2) No curso de um breve resumo histórico ficou evidente que a idéia de...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100031

Pesquisas sôbre a análise estatística de experiências de adubação com o auxílio da lei de Mitscherlich
Provedor de dados: 43
Autores: Gomes,Frederico Pimentel; Malavolta,Eurípedes.
Statistical analyses of an experiment on wheat were carried out with the aid of Mitscherlich's law. The experiment was made in Ponta Grossa, Paraná, by the Ministry of Agriculture of Brasil. Lime, in the form of Ca(OH)2, was applied at the levels of 0, 2, 4, 6 and 8 metric tons per hectare. A 5 x 5 Latin square was used. Lime was applied in 1940 and wheat was cultivated in the same plots for several years. The following fertilizers were annually used for all plots: NaNO3 100 kilograms per hectare, Superphosphate 350 kilograms per hectare, K2S04 80 kilograms per hectare. The statistical analysis of the data collected in 1941, 1942, 1943, 1947 and 1948, carried out in accordance with the methods previously introduced by Pimentel Gomes and Malavolta (1949 a,...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100001

A interpolação da lei de Mitscherlich e a análise da variância em experiências de adubação
Provedor de dados: 43
Autores: Gomes,Frederico Pimentel.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100012

Contribuição ao conhecimento de alguns Ithomiidae brasileiros, predadores de Solanáceas (Lep., Rhopalocera)
Provedor de dados: 43
Autores: Lordello,Luiz Gonzaga E.
This paper is a small contribution to the knowledge of some species of brazilian Ithomiidae (Lep., Rhop.). The Author, during the year 1950, had an oportunity to study the development of the following species: Mechanitis lysimnia Fabr. Mechanitis polymnia casabranca Hsch. Dircenna dero Hübn. Methona themisto (Hübn.) The three first species live, in Piracicaba (State of São Paulo, Brasil), on Solanum variabile Mart., damaging its leaves, Mechanitis polymnia casàbranca being a serious enemy of this medicinal plant. The Author presents some notes on the biological cycle of M. lysimnia, which confirm D'Almeida's observations. Methona themisto is an old pest of Brunfelsia hopeana Benth. In Argentine, according to Hayward's observations, it occurs on Brunfelsia...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100006

Observações sobre papilomatose em bovinos
Provedor de dados: 43
Autores: Jardim,W. R.; Spallini,A.
The A. A., in this paper, relate the observations on a bovine herd affected by papilloma or common warts; it was treated with the specific medicament "Figueirina", made in the "Laboratório de Biologia Veterinária", of Matias Barbosa, Minas Gerais, Brazil. In twenty-six affected animals, twenty showed complete cure after the treatment, three of them improved, and the other three didn't show any satisfactory results. Among the cured animals, twelve were young and eight were adult. The uncured animals were all adult. In most cases, the warts disappeared rapidly with two applications. In those animals that had resisted four applications, the warts didn't disappear, even with greater dosis. "Figueirina" showed more efficience in the treatment of young animals.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100010

Estudo sôbre a variação da produção leiteira na raça holandesa malhada de preto
Provedor de dados: 43
Autores: Gomes,Frederico Pimentel; Peixoto,Aristeu M.
The authors studied the effects of calving time, season and time elapsed after calving on milk production of the Holstein Friesian Breed of the "Escola Superior de Agricultura "Luiz de Queiroz" (Piracicaba, Brasil), 180 lactation periods of 300 days were studied, with 15 calvings in each month. Statistical analysis of the data proved : 1. That calving in May, June, July or August, that is, in the driest months, the cows give a milk production 17,3% larger than calving in December, January, February, March or April. August is the best month for calving, and February is the worst. 2. Spring is the most favorable, and Autumn the most unfavorable season for milk production. 3. The decrease of milk production during the lactation period depends largely on...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100004

Nota preliminar sôbre a variação em orquídeas brasileiras
Provedor de dados: 43
Autores: Brieger,F. G.
Preliminary studies on brazilian orchid species show that the existing material offers the possibility for studying the following general questions: a) In spite of the rule about the relative proportion between numbers of individuals per species and number of species per unit area in tropical and in temperate zones, the orchid genera seem to follow more closely the rule of temperate zone species, and this in spite of the fact that the family is undoubtedly of tropical origin. b) The large amont of paralell variation existing between different genera recquires a detailed explanation, and extensive introgressive hybridization is mentioned as one possibility. c) The existence of natural sympatric hybrids, both inter-generic and interspecific, and the...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100032

Experiências de engorda de frangos II
Provedor de dados: 43
Autores: Torres,A. P.; Santos,J. M.
This paper deals with an experiment to determine the optimum period (number of days) in fattening chickens. Thirty chickens R. I. R. were numbered, weighed and feeded in crate, with one standard ration (17% crude protein). The chickens were weighted every two days and the results obtained indicate the optimum is reached between 12 and 16 days of feeding. It was observed that after 16 days the weights stop or decrease progressively as showed by the Grafic I.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100027

Estudo de correlação entre a postura e dimensões da bacia em Rhode Island Red
Provedor de dados: 43
Autores: Torres,A. P.; Graner,E. A.
The AA. have studied, in this paper, the correlation of egg production in yearling R. I. R. pullets and the difference between the pelvic bones, an between the pelvic bones and keel. The distances between those bones were measured by the fingers. It was suggested an index = spread of pelvic x spread of keel bone. These three data were compared with the last 30 days production and with the production to date - six months. Comparisons have been made with 285 pullets. The AA. have concluded: (a) there is a positive correlation between the spread of the pelvic bones and the last 30 days (r = + 0,23 and pr = + 0,16); (b) there is not correlation of the distance between the pelvic bories to the keel and the last 30 days (r = + 0,11 and pr = - 0,01; (c) there is...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100028

III - Contribuição para o estudo biológico e ecológico das Podostemaceae do salto do Piracicaba
Provedor de dados: 43
Autores: Accorsi,Walter Radamés.
1 - The Author, in this 3 thd. contribution, concludes the study of the biology and ecology of the species Tristicha trifaria (Willd.) Spreng. and Mourera aspera (Bong.) Tul., both of the Piracicaba Fall. 2 - According to the results of Dr. Peter van Royen (State Herbarium of Leiden, Holland), who made a complete revision of Podostemaceae of the Piracicaba Fall, the species Tristicha hypnoides (St. Hil.) Spreng. var. Hilarii Tul. and Mnioppsis Glazioviana Warm, correspond, respectively, to theTristicha trifaria (Willd.) Spreng. and Mniopsis weddelliana Tul. Apinagia Accorsii Toledo was transferred by Royen to the genus Wettsteiniola. So, its new name is Wettsteiniola accorsii (Toledo) v. Royen. 3 - Propagation by seeds may occur in the following places: a)...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100030

Corte de tubérculos da batatinha: Parte III - Plantio de tubérculos previamente umedecidos
Provedor de dados: 53
Autores: Boock,O. J.
The experiments here recorded deal with the comparison of longitudinally cut seed tubers with whole ones. The results have confirmed those already obtained on the same subject in prior trials, namely, that whole seed tubers yield better than cut ones: a) When whole or cut seed tubers were mois tened before planting, a small, though not statistically significant increase in harvest was observed, possibly, due to fewer failures of germination. b) The cutting of seed tubers on the day of planting gave the lowest production, c) Whole tubers with weight equal to that of the cut halves produced the highest yields and are recommended for use in our conditions.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200004

Adubação da batata doce em São Paulo: Parte I - Efeito da adubação mineral
Provedor de dados: 53
Autores: Camargo,A. Pais de.
Visando estudar a influência da adubação na cultura da batata doce para as condições do Estado de São Paulo, foram efetuadas várias séries de ensaios abrangendo diversos aspectos do problema. Neste trabalho, são apresentados apenas os resultados de 31 ensaios planejados para estudar o efeito dos elementos N, P e K, sôbre o desenvolvimento das ramas, produção, número de batatas por plantio e pêso médio das batatas, nos principais tipos de solo do Estado. Os resultados dos demais ensaios dêste plano serão objeto de outros artigos. Vários planos e delineamentos experimentais foram adotados. Como fonte de elementos minerais foram utilizados os seguintes adubos comerciais : salitre do Chile, sulfato de amônio, superfosfato de cálcio, farinha de ossos...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100008

Necrose acrópeta do tomateiro, de origem genética
Provedor de dados: 53
Autores: Costa,A. S.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200001

Efeito da frequência e severidade de corte das fôlhas sobre a duração de vida do sisal
Provedor de dados: 53
Autores: Medina,J. C.
The present paper deals with the influence of four different leaf-cutting cycles combined with three levels of severity of cutting upon the life cycle of sisal plant (Agave sisalana Perrine). According to the results obtained, it may be concluded that less frequent cutting induces the plant to pole earlier, and greater severity of cutting prolongs its life eyele.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100003

Ensaio de variedades de cafeeiros III
Provedor de dados: 53
Autores: Mendes,J. E. Teixeira.
O ensaio de variedades de cafeeiros foi iniciado na Estação Experimental Central de Campinas, em 1931. A primeira colheita foi realizada em 1935. Em 1939, foi feita a publicação dos resultados referentes ao período 1935-38. Em 1949, nova publicação reuniu os dados do período 1935-46. No presente trabalho vêm relatados os acontecimentos relativos aos anos que decorreram de 1947 a 1950, ano por ano, e feito o exame dos resultados no período todo, desde o início da produção (1935-1950). O ensaio teve prosseguimento normal nos anos de 1947 a 1950. Foram feitas as adubações adequadas, as capinas se realizaram em ordem, as colheitas se processaram regularmente bem. A produção média foi examinada ano por ano, verificando-se que, nesse período, o Bourbon amarelo...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100005

Viscosidade da fécula de variedades de mandioca: II - Curvas viscosimétricas das variedades branca de Santa Catarina Brava de Itu e Cafelha, determinadas em amostras preparadas em laboratório
Provedor de dados: 53
Autores: Pacheco,José Arlindo de Camargo.
Samples of three commercial varieties of cassava starch (Manihot utilissima Pohl) have been prepared in laboratory in order to find out it they differed in relation to viscosity. These varieties were Branca de Santa Catarina, Brava de Itu and Cafelha, considered to be very promising in relation to root yield. Viscosity measurements were made in Brabender Amylograph Viseograph and the data obtained were submited to statistical analysis. The results indicated that these cassava varieties differ substaneially in their starch viscosity.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200005

Resultados sôbre a adubação do rami
Provedor de dados: 53
Autores: Castro,G. Paiva.
This paper presents preliminary results 01 chemical fertilizer experiments conducted at Campinas and Pindorama Experimental Stations on production of stems with leaves of the Murakami ramie (Boehmeria nivea) in two types of soils in the State of São Paulo. In CampiDas, on soil of the "roxa misturada" type, different effects of the treatments in the increasing of the production of stems with leaves have been found. In Pindorama, on soil oi the "Arenito Bauru" type, the results of experiment only showed a significant effect of phosphorus in increasing the production of stems with leaves.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400006

A hibridação interespecífica no melhoramento do cafeeiro
Provedor de dados: 53
Autores: Mendes,A. J. Teixeira.
The cultivation of coffee in the American coffee producing countries is not faced with any serious handicap. The future can not be far distant, however, when it will be necessary to establish new plantations back on the high-priced old exploited lands. Need will be felt for improved varieties. At the same time, it is not known if in a near future the American coffee growers will not be in trouble with diseases as terrible as Hemileia, which the present age of transport cannot restrict to non-American areas. In the program of coffee improvement, interspecific crosses are expected to take a very important place. The introducing of desired characteristics of other species into Coffea arabica by hybridization is made difficult by the fact that, while C....
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400005

Dosagem dos nitratos do solo pelo método do ácido fenoldissulfônico
Provedor de dados: 53
Autores: Verdade,F. C.
This work deals with the nitrates determination bj r the phenoldisulfonic acid method in the soils of São Paulo State. Several modifications were introduced which led to outline an analytical procedure. The nitrates are extracted by percolation, with a solution of H2SO4 0,01 N which is efficient in obtaining clear filtrates without clay and it is a saving time procedure. The ratio employed to remove soil nitrates is one weight of soil for three volumes of the extractor. The H2SO4 solution was the best extractor found because it dissolves less organic matter from the soil than other methods. Also, with the method described, the operation of removing chlorides is easy and it is possible to use a blank determination. Losses of nitrates are significant when...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100001

O ponto de armazenamento do café em côco
Provedor de dados: 53
Autores: Tosello,André.
In the State of São Paulo, coffee cherries, after harvesting, are usually put to dry, in the open or are artificially dried until reaching a percentage of about 18% of water. With this humidity, the coffee husks can easily be broken by rubbing the dried cherries in the hand. This operation is done before the coffee is stored. In this paper, are presented some preliminary data about the feasibility of storage-of coffee with more than 18% of water. The results of the experiments have indicated: a) in the Campinas enrivonment, coffee can be stored with about 24% of water-without loosing color and cup-quality; b) the storage with 24% of water reduces by 20-30% the drying operation and permits better condition for more uniforme coffee drying inside the hopper...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200008

Variedades de batatinha (Solanum tuberosum L.) procedentes da Polônia
Provedor de dados: 53
Autores: Boock,O. J.
As variedades de batatinha Dar, Oka, Bem, Pionier e Kolobrzeskie, foram recebidas da Polônia, para verificação do seu comportamento sob as nossas condições, em confronto com a variedade "Eigenheimer", já conhecida (1). Com êsse objetivo, foram instaladas oito experiências, sendo três em Capão Bonito, em solo sílico-argiloso, três em Louveira, em salmourão, e duas em Indaiatuba, em terreno sílico-argiloso. Das observações realizadas durante o período vegetativo, e dos resultados da produção, conclui-se o seguinte : a) tôdas as variedades apresentaram película amarelada e que se tornou verde à ação da luz ; b) a folhagem da variedade Kolobrzeskie se mostrou de um verde-claro e de porte médio, contrastando com a Pionier, que se mostrou de um verde forte e...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400004

A extração do manganês e suas formas de ocorrência em alguns solos do estado de São Paulo
Provedor de dados: 53
Autores: Catani,R. A.; Gallo,J. Romano.
O presente trabalho estuda a capacidade de extração do manganês do solo, por diversas soluções, a fim de esclarecer as formas de ocorrência daquele elemento nos solos do Estado de São Paulo. Os solos estudados foram representados por três amostras de terra roxa legítima (solo oriundo de diabase), três amostras de solo massapé-salmourão (solo proveniente de gnais, xistos, granitos, etc.) e duas amostras de solo arenito Bauru (solo derivado da rocha sedimentar denominada arenito Bauru). Para extrair o manganês foram usadas as soluções : solução normal de acetato de amônio com pH = 7,00 ; solução normal e meio normal de nitrato de potássio ; solução normal e meio normal de nitrato de sódio ; solução normal de acetato de magnésio ; solução normal de nitrato de...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000300006

Ensaio de desbaste de ramos inferiores do cafeeiro II
Provedor de dados: 53
Autores: Mendes,J. E. Teixeira.
Foi continuado o ensaio do desbaste dos ramos inferiores do cafeeiro, instalado na Estação Experimental Central de Campinas, em 1932. O ensaio compreende duas séries : a) desbastada ; b) não desbastada. Cada série se compõe de 5 repetições com 25 cafeeiros cada uma. A variedade em cultivo foi a Coffea arabica L. var. typica Cramer. A série desbastada foi mantida sem os ramos primários até uma altura de 50 cm do solo. Na série não desbastada não se interferiu de modo algum nessa parte da planta. As colheitas foram iniciadas em 1935. A série não desbastada produziu significativamente mais, no período todo examinado, isto é, em dezesseis safras (1935-1950). Não houve grande diferença no tamanho das sementes. A maturação foi um pouco apressada na série...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400002

A água do solo e o sombreamento dos cafezais na américa central
Provedor de dados: 53
Autores: Franco,Coaraci M.
The coffee plant does not thrive well under shade in most of the coffee areas of the State of São Paulo, Brazil. It has been shown that water competition from the shade trees during the dry season is the factor responsible for the failure in growing coffee under shade in São Paulo. In all cases where the coffee plants were not thriving well under shade, the soil moisture after two to three months of drought was at the wilting point at the depths most utilised by the root systems of shade trees and coffee plants. In open plantations this was never observed. All commercial coffee plantations of Central America are shaded. Most of them are located in areas with a dry season as long as in São Paulo and some times even longer. A comparative study of the...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200002

Xiphinema campinense, nova espécie (Nematoda, Dorylaimidae)
Provedor de dados: 53
Autores: Lordello,Luís Gonzaga E.
X. campinense n. sp. is described. It is a Xiphinema closely resembling X. pratense Loos, 1949, from which it is distinguished by its measurements, by the absence of any cuticular transverse striatum as well as by the number and location of the caudal papillae.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400007

A multiplicação de batatinha por meio dos brotos
Provedor de dados: 53
Autores: Boock,O. J.
Tipo: Info:eu-repo/semantics/other
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100011

Xiphinema brasiliense, nova espécie de nematóide do Brasil, parasita de Solanum tuberosum L.
Provedor de dados: 53
Autores: Lordello,Luís Gonzaga E.
Xiphinema brasiliense, a new opistodelphic species of Brazilian nematode, was found in soil around potato roots at Sapecado (State of São Paulo, Brazil). It differs from the other known opistodelphic species of the genus, by its type of tail end, which is digitate. It contrasts most strongly with X. ensiculiferum (Cobb, 1893), in which the shape of the extremity is decidedly hemispheroidal. The species most closely resembling X. brasiliense isX. chambersi Thorne, 1939, from which it is distinguished by its longer stylet and the mentioned characteristic form of the end of the tail. The X. brasiliense amphids are also very short and wide, unlike those of X. chambersi.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100010

Aspectos da cultura do cereal "Adlay"
Provedor de dados: 53
Autores: Viegas,G. P.
A new variety of adlay (Coix lacryma-jobi L.) is being cultivated in the Slate of São Paulo, its chief characteristics being small height, oblong black seeds, and fair yield, especially in low lands, with abundant rainfall and high temperature. Some trials were conducted with this plant in four experiment stations of the Instituto Agronômico in the State of São Paulo. The yields were very variable from year to year and place to place. The following preliminary statements could be made with regard to highland conditions in this state: a) adlay should be planted in October-November ; b) spacing and rate of planting is not very important within the limits of 60-120 cm between rows and 8 to 33 g of seed per 10 m in the row, on account of the great tillering...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100009

Estudo dos horizontes orgânicos do solo de matas, no arenito Bauru: I - Distribuição e fracionamento da matéria orgânica
Provedor de dados: 53
Autores: Verdade,F. da Costa.
No estudo da serapilheira nos solos de mata do Arenito Bauru foram feitas as seguintes observações: Elaborou-se uma nomenclatura específica, dada a carência de termos técnicos em português, para denominar as diferentes camadas que constituem os horizontes orgânicos das matas. A matéria orgânica nos horizontes A00 e A0 foi determinada pelo processo de perda ao rubro e não pela multiplicação do teor de carbono por 1,724, porque, na serapilheira, este último processo conduz a resultados menos exatos. Apesar de não coincidirem exatamente as coletas de serapilheira com a dos perfis do levantamento pedológico já efetuado anteriormente no local, a sua associação permitiu esboçar o estado da matéria orgânica nestes solos. A quantidade de matéria orgânica da...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000300002

Adubação mineral para a batatinha - Solanum tuberosum L: influência dos elementos N, P e K em solos ricos em matéria orgânica do Vale do Paraíba
Provedor de dados: 53
Autores: Boock,O. J.; Küpper,A.; Sales,J. Moreira.
Besults are presented of mineral fertilizer trials witht Irish potato crop in the State of São Paulo. The experiments were conducted in the flat lands of the Paraíba River banks. In this region, potato plantings are usually made from May to October, a period with little rain, :nul practically free from flood. From October to April, when good weather conditions prevail, rice is almost the only crop grown. Iu other regions of the State, potato is planted in February or in August. Chemical analyses of an average sample of the soil revealed a high organic matter content, about seven fold higher total nitrogen content and a twelve fold higher total carbon content, as compared with those found in a soil sample taken from Capão Bonito, an important potato area in...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000300003

Identificação microquímica de minerais primários de potássio no solo
Provedor de dados: 53
Autores: Catani,Renato A.
This paper reports a study, from a chemical arid microcheniical point of view, of the soil potassium in the type of soil originating from the Arenito Bauru. A mechanical separation of the soil was carried out in order to study the potassium distribution in the soil. The fractions 0.250 to 0.105 mm, 0.105 to 0.053 mm, 0.053 to 0.020 mm, 0.020 to 0.010 mm and 0.010 to 0.002 mm were isolated. The chemical data, i. e., the exchangeable and the total potassium content pointed out the occurrence of primary minerals of potassium in the fractions, 0.250 to Ò.105 mm, 0.105 to 0.053 mm and 0.053 to 0.020 mm. A simple microchemical technique was performed by which it was possible to differentiate the potassium bearing mineral from quartz, ilmenite, magnetite and...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100004

Dados bionômicos de um percevejo predador
Provedor de dados: 53
Autores: Tella,Romeu de.
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200009

Ensaios de variedades de girassol
Provedor de dados: 53
Autores: Sousa,O. Ferreira de; Canecchio Filho,V.; Abramides,Eduardo.
Apesar de pouco difundida em São Paulo a cultura do girassol, resolveu-se executar um programa de ensaios regionais de variedades a fim de se determinar o seu comportamento em algumas regiões do Estado. Assim foram realizados oito ensaios, agrupados em três séries, nas estações experimentais de Ribeirão Prêto, Pindorama e Mococa, durante os anos de 1947 a 1949. A análise dos resultados indicou como mais produtivas as variedades Riscado, La Estanzuela n.° 53, Línea-16, Línea-30 e Sei. Fischer-100, esta última incluída apenas nos ensaios da terceira série.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200007

Análise do ensaio de desbaste de ramos inferiores do cafeeiro
Provedor de dados: 53
Autores: Stevens,W. L.; Fraga Jr.,C. G.
This paper was written primarily to illustrate the process of fitting constants to non-orthogonal data. The design of the experiment, on the pruning of lower branches of coffee-trees, was systematic (see plan at the beginning). Three constants were fitted, representing respectively the treatment contrast, the difference between upper and lower half of the field and the linear gradient of fertility across the field. The use of the residual sum of squares for the estimation of error is not, of course, logically correct but it is unlikely to lead to seriously wrong conclusions if caution is exercised. In the event, the procedure failed to eliminate any soil heterogeneity (see Analysis of Variance, p. 288). Inspection of the data showed that much of the...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400003

Dois predadores do "bicho mineiro" (Perileucoptera coffeella Guér. e Men., 1842) Vespoidea - Polybiinæ
Provedor de dados: 53
Autores: Nogueira Neto,Paulo.
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400009

Estudo da variabilidade dos nitratos num solo tipo terra roxa-misturada
Provedor de dados: 53
Autores: Verdade,F. C.
From a study of the variation of nitrates in the soil known as terra roxa misturada (mixed purple soil), the following conclusions were drawn : a) The nitrate content of this soil reveals a periodic variation through the year. The same kind of variation is expected in the majority of S. Paulo soils, because the climate, with minor exceptions, is fairly uniform over the State. b) As nitrification proceeds at a higher rate in the hot wet (September-May) than in the cool dry season (May-September), nitrates accumulate in the soil during the first period and disappear in the second. However, as an exception to the above rule, there appeared to be a fall in nitrates during December. This may have been due, either to leaching by rain, or to absorption by weeds,...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400001

Observações gerais sôbre os grandes tipos de solo do estado de São Paulo
Provedor de dados: 53
Autores: Paiva Neto,J. E. De; Catani,H. A.; Küpper,A.; Medina,H. Penna; Verdade,F. C.; Gutmans,M.; Nascimento,A. C.
Êste trabalho suscinto sôbre os solos do Estado de São Paulo, é o resultado de 15 anos de estudos. Foram feitos nesse espaço de tempo, mais de 80.000 km de excursões pelo Estado ; coletados cêrca de 700 perfis de solo. com suas várias camadas e compreendendo profundidades entre 1,5 e 5,0 m* Foram tomadas mais de 20.000 amostras superficiais (até 40 cm) de solo ; mais de 4.000 amostras de rochas e cêrca de 6.000 fotografias. A superfície estudada, envolve cêrca de 24.700.000 ha e está situada entre as latitudes sul de 19°50' e 25°10' e entre as longitudes (seg. Greenwich) de 44°10' e 53°10'. As altitudes variam entre 3 e 1.700 m acima do nível do mar. Neste trabalho básico, inicial, dividimos o Estado em 10 grandes tipos de solo que se acham bastante...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000300005

Experiências de rotação
Provedor de dados: 53
Autores: Stevens,W. L.
Descrevemos os princípios básicos do planejamento de experiências de rotação. Apontamos a necessidade de incluir na experiência tôdas as fases das rotações em todos os anos. Mostramos o motivo por que, geralmente, não podem ser aproveitados os delieneamentos complexos desenvolvidos para experiências de um só ano. Discutimos uma experiência de rotação com milho, algodão e macuna.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400008

Analise estatística do ensaio de variedades de café: parte II
Provedor de dados: 53
Autores: Morales,A.
This paper continues the statistical analysis of a coffee varietal trial at Campinas (1, 2, 3), utilising the data of a further period of 4 years. Variety D (Yellow Bourbon) has now drawn significantly ahead of C (Bourbon) as is shown by fig. 1 compared with fig. 2b of reference (3). This possibility was foreseen at the time of the earlier analysis (3), from a consideration of the annual rates of increase of yield. This is of interest to the general problem of selection of perennial plants, because it shows that not only average yield but also rate of increase of yield is a useful criterion for selection.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100006

Combate aos nematóides pela aplicação de fumigantes no solo: efeito do d-d e dowfume w-40 no combate aos nematóides formadores de galhas, em tubérculos de batatinha
Provedor de dados: 53
Autores: Boock,O. J.
No presente trabalho relatamos os resultados a que pudemos chegar com o emprêgo dos fumigantes "D-D" (Dicloropropeno-Dicloropropano), e "Dowfume W-40", na base de dibrometo de etileno, no combate aos nematóides formadores de galhas, em tubérculos de batatinha. As experiências foram efetuadas em Campinas, em terreno do tipo "Glacial", e divididas em duas fases distintas. Na primeira, tratamos o terreno com os fumigantes 18 dias antes do plantio e adubamos alguns lotes, ena segunda fase, que foi realizada no mesmo terreno, não adubamos e nem tratamos o terreno, com o fim de verificar o efeito residual dos produtos, empregando, além disso, duas variedades ao invés de uma, como na fase inicial. Os resultados apresentados vieram indicar que : a) tanto o "D-D"...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100002

Emprego de laminado plástico vinílico como amarrilho na enxertia
Provedor de dados: 53
Autores: Germek,E.
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000300007

Novo tipo de lisímetro monolítico
Provedor de dados: 53
Autores: Grohmann,F.; Medina,H. P.; Küpper,A.; Gargantini,H.
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000400010

Uma nova espécie de Mononchus (Nematoda, Mononchidae)
Provedor de dados: 53
Autores: Carvalho,Jair Correia de.
This communication describes a new species of Mononchus which was found at the Experimental Station of Monte Alegre (Ibiti), State of São Paulo. Species of Mononchus are of interest because they are believed to be predators of other nematoids. The predatory habit of the new species was observed in the laboratory. Assuming that its behaviour is the same in the field, we may consider the species as an ally of man in controlling populations of nematoids in the soil. M. ibitiensis differs from its nearest related species M. muscorum by its smaller pharynx ; by smaller dortooth, opposited by four ribs, each of which has six denticles and by the presence of three caudal glands connected with a pore without valve.
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000100007

Adubação da mandioca no estado de São Paulo: Parte I - Efeito da adubação mineral
Provedor de dados: 53
Autores: Normanha,Edgard S.
No presente trabalho são apresentados os resultados obtidos em 14 experiências de adubação mineral com a cultura da mandioca, em alguns tipos de solo do Estado de São Paulo. Foram levadas a efeito experiências em quatro regiões: Sorocaba, em solo Glacial, Salmourão e mistura dessas duas formações; Tietê, em solo Glacial e mistura deste com Corum-bataí; Araras, em terra roxa misturada, já bem explorada, e em Roseira, no Terciário. Os adubos empregados foram os seguintes: sulfato de amônio (20% de N), superfosfato de cálcio (20% de P2O5,) ou farinha de ossos dege-latinados (29% de P2O5) e cloreto de potássio (50% de K(2)0) na base de 80 kg de N, 120 kg de P2O5 e 60 kg de K2O por hectare. Os tratamentos estudados foram os resultantes do emprêgo dêsses adubos,...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000300001

Quantidade de água transpirada pelo cafeeiro sombreado e pelo ingazeiro
Provedor de dados: 53
Autores: Franco,Coaraci M.; Inforzato,Romeu.
The present paper discusses the amount of water lost by the soil through the transpiration of coffee plants and shade trees in shaded coffee plantation. All methods and techniques employed in the study of transpiration of the shade tree Inga edulis Mart, were exactly the same as those described in a paper recently published (4). It was determined previously (3) that a shaded coffee plant receiving 55% of full sunlight transpired 80% as much as when in 100% full sunlight. The amount of water transpired by a coffee plant was calculated by taking 80% of the amount transpired in unshaded plantation (4). Comparing the water lost by transpiration of shaded coffee plants and shade trees with the average rainfall in Campinas, São Paulo, Brazil, it is seen that...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200003

Clorose das fôlhas do cafeeiro excelsa
Provedor de dados: 53
Autores: Costa,A. S.; Mendes,J. E. Teixeira.
A type of leaf chlorosis is shown by plants of excelsa coffee growing in nursery beds in a lath house at the Instituto Agronômico, Campinas. Tests made with various elements showed that this type of chlorosis is due to iron deficiency. Seedling plants of arabica coffee growing in the same beds do not show chlorosis, but these symptoms are exhibited by arabica scions grafted on some excelsa rootstocks. Scions from chlorotic excelsa plants recover the normal color when grafted on arabica rootstock. Likewise, arabica scions that had become chlorotic after being grafted on excelsa rootstock recovered when transferred onto an arabica rootstock. Other grafting tests indicated that no pathological cause seems to be associated with this type of chlorosis, and that...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000300004

Poliembrionia em mirtáceas frutíferas
Provedor de dados: 53
Autores: Gurgel,J. T. A.; Soubihe Sobrinho,J.
Tipo: Info:eu-repo/semantics/other
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051951000200006

Los sindicatos en la nueva sociedad.
Provedor de dados: 121
Autores: Harold J. Laski; Laski, Harold J.
Tipo: Text
Palavras-chave: SINDICATOS; SINDICALISMO; DEMOCRACIA.
Ano: 1951
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7194&tab=opac&oai:flacso.org.ec:7194

The diplomacy of imperialism 1890-1902
Provedor de dados: 121
Autores: William L. Langer; Langer, William L.
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES; IMPERIALISMO; PAZ; GUERRA; HISTORIA.
Ano: 1951
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=3518&tab=opac&oai:flacso.org.ec:3518

Encyclopaedia Britannica a new survey of universal knowledge
Provedor de dados: 121
Tipo: Text
Palavras-chave: ENCICLOPEDIA; MATERIAL DE REFERENCIA.
Ano: 1951
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=136764&tab=opac&oai:flacso.org.ec:136764

The governmental process political interests and public opinion
Provedor de dados: 121
Autores: David B. Truman; Truman, David B.
Tipo: Text
Palavras-chave: GOBIERNO; LIDERAZGO.
Ano: 1951
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2794&tab=opac&oai:flacso.org.ec:2794

El libro de la ciudad de San Francisco de Quito hasta 1950-51
Provedor de dados: 121
Autores: Editorial Fray Jodoco Ricke.
Tipo: Text
Palavras-chave: HISTORIA; BIOGRAFIAS; PUBLICIDAD.
Ano: 1951
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139986&tab=opac&oai:flacso.org.ec:139986