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| Registros recuperados: 91 | |
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| Almeida,Jayme Rocha de; Valsecchi,Otávio; Gomes,Frederico Pimentel. |
| 1 - Análise do Brix Em três das variedades analisadas - F 29-7, Co. 285 e Tuc. 519, - a diferença entre o Brix do caldo das canas florescidas e das canas não florescidas foi estatisticamente insignificante. Apenas em uma variedade - Co. 312 - tivemos um resultado duvidoso. Em F 29-7 nota-se que o erro nas' canas florescidas é maior que nas não florescidas, o que parece indicar uma tendência a maior instabilidade do Brix com o florescimento. A diferença entre os dois erros é, poréxn, de significação duvidosa, embora o valor de P exceda bastante o limite de 5% de probabilidade, sem atingir o de 1%. 2 - Análise dos redutores Houve uma diferença sem significação em F 29-7 e Co. 285. Em Co. 312, porém, o resultado foi duvidoso e em Tuc. 519 foi significante, e... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761945000100003 |
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| Backer, C.A.. |
| In a previous number of this volume (Blumea V, nr. 1, 1942, p. 66—80), one of the junior writers of the present paper published an account of nomenclatorial changes concerning javanese Verbenaceae. This paper was written as a supplement to a larger work by the senior writer, who has for long years devoted most of his activities to the study of the flora of Java, on which it was his privilege to publish some more or less extensive papers, all of them in the Dutch language 2). These publications may be considered materials for a Flora of Java. In fact, some of them have the character and even the title of such a flora, though on account of several circumstances none of them could be completed. Since the senior writer had retired from his official duties, an... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/524581 |
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| Bloklander, A.; Brouwer, J.. |
| I. INLEIDING Ten behoeve van de N.V. Stoomschelpenzuiger- en schelpkalkbranderij te Brielle werd gedurende vele jaren schelpenmateriaal opgezogen in de Westerschelde ter hoogte van Ellewoudsdijk door den schelpenzuiger ,,Marie", eigendom van genoemde maatschappij. Dit materiaal, hetwelk naast Mollusca ook resten van Bryozoa, Foraminifera, Selachii en Brachiopoda bevatte, werd in afwachting van de verwerking in de kalkbranderij opgeslagen op het terrein bij de kalkfabriek. Nadere bijzonderheden over het bedrijf zijn reeds gepubliceerd door Dr. C. O. van Regteren Altena (1938). Dank zij de welwillende medewerking van den Directeur, Ir. P. van der Wallen, zijn vele malacologen in de gelegenheid gesteld schelpenmateriaal te verzamelen op het terrein der... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22; 42.73. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/319263 |
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| Blöte, H.C.. |
| The collection of Berytidae, Piesmidae, and Tingidae in the Rijksmuseum van Natuurlijke Historie is not of the same degree of completeness as that of most of the other families of bugs. Exotic insects of small size have often been neglected by our collectors, and it seems, moreover, that the Tingidae are not very abundant in the tropical regions. Because of lack of material for comparison I have abandoned the description of the few American and African species that are possibly new to science. Only the descriptions of new species from the Indian Archipelago are given below. BERYTIDAE — BERYTINAE Neides aduncus Fieb. I. Southern France, Duda. — 2. Rio Salato, Oran, 1895, Dr. Schmiedeknecht. — 3. Corfu, 1889, Schmiedeknecht. — 4. Tunis, 1898, Dr.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/317943 |
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| Blöte, H.C.. |
| In the collection of the Leiden Museum there is preserved the holotype of Scotomedes ater Stål. I was much surprised to discover that Velocipeda biguttula Reut. is a synonym of it. Distant described another Scotomedes-species in his "Fauna of British India" under the name: Godefridus alienus, bringing it to the Reduviidae, subfam. Apiomerinae. This was a reason for derision by Reuter, who cited it as an instance of Distant's less trustworthy scientific performances (Reuter, 1905). However, though it seems to have been "bon ton" to ridiculize Distant's views, we are not accustomed to neglect Stål's, and I was much interested to know why Stål had placed Scotomedes without hesitation into the Nabidae, as other authors have been of a so much different opinion.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/317932 |
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| Blöte, H.C.. |
| TESSARATOMINAE ONCOMERINI Rhoecocoris sulciventris Stål. 1. Australia, Felder. Cumare nov. gen. Allied to Rhoecocoris Bergroth, the base of the venter with a blunt, depressed tubercle only, not spinous; the antennae fivejointed. Head flat above, eyes not very prominent. Antennae short, the first joint not reaching the apex of the head. Rostrum short, not reaching beyond the middle of the mesosternum. Orifices narrow, ending into an elevated thorn. Mesosternum anteriorly and posteriorly with elevated longitudinal keels, the medial line before the posterior keel narrowly furrowed. Type of the genus is: Cumare pallida nov. spec. (fig. 1). Pale greyish ochraceous throughout, only at both sides of the centre of the apical border of the sixth (seventh) ventral... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318719 |
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| Boock,Olavo José. |
| 1 - As experiências relatadas no presente trabalho se referem ao emprêgo de diferentes adubos fosfatados na cultura da batata (S. tuberosum L.) e conduzidas em Campinas, Taubaté e Joanópolis, em 1940 e 1944. 2 - As análises sumárias das terras indicaram variações do fósforo, desde muito fraco (Joanópolis), regular (Campinas) até ótimo (Taubaté) . 3 - As menores produções foram obtidas dos canteiros sem adubo. 4 - O emprêgo ùnicamente de adubos azotados mais potássicos, pràticamente, não determinou aumento de produção sôbre os "sem adubo". 5 - O acréscimo de adubos fosfatados aos azotados e potássicos causou um aumento altamente significativo de produção. 6 - Os canteiros em que além dos adubos azotados e potássicos, incluímos o Superfosfato apresentaram em... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945000500004 |
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| Brieger,F. G.. |
| The study of pod corn seems still of much importance from different points of view. The phylogenetical importance of the tunicate factor as a wild type relic gene has been recently discussed in much detail by MANGELSDORF and REEVES (1939), and by BRIEGER (1943, 1944a e b). Selection experiments have shown that the pleiotropic effect of the Tu factor can be modified very extensively (BRIEGER 1944a) and some of the forms thus obtained permitt comparison of male and female inflorescences in corn and related grasses. A detailed discussion of the botanical aspect shall be given shortly. The genetic apect, finally, is the subject of the present publication. Pod corn has been obtained twice: São Paulo Pod Corn and Bolivia Pod Corn. The former came from one half... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761945000100007 |
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| Brieger,F. G.. |
| The experiments reported were started as early as 1933, when indications were found in class material that the factor for small pollen, spl, causes not only differences in the size of pollen grains and in the growth of pollen tubes, but also a competition between megaspores, as first observed by RENNER (1921) in Oenothera. Dr. P. C. MANGELSDORF, who had kindly furnished the original seeds, was informed and the final publication delayed untill his publication in 1940. A further delay was caused by other circunstances. The main reason for the differences of the results obtained by SINGLETON and MANGELSDORF (1940) and those reported here, seems to be the way the material was analysed. I applied methods of a detailed statistical analysis, while MANGELSDORF and... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761945000100008 |
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| Brieger,F. G.. |
| 1) Chamamos um desvio relativo simples o quociente de um desvio, isto é, de uma diferença entre uma variável e sua média ou outro valor ideal, e o seu erro standard. D= v-v/ δ ou D = v-v2/δ Num desvio composto nós reunimos vários desvios de acordo com a equação: D = + Σ (v - 2)²: o o = o1/ o o Todo desvio relativo é caracterizado por dois graus de liberdade (número de variáveis livres) que indicam de quantas observações foi calculado o numerador (grau de liberdade nf1 ou simplesmente n2) e o denominador (grau de liberdade nf2 ou simplesmente n2). 2) Explicamos em detalhe que a chamada distribuição normal ou de OAUSS é apenas um caso especial que nós encontramos quando o erro standard do dividendo do desvio relativo é calculado de um número bem grande de... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761945000100011 |
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| Brieger,F. G.. |
| 1) The first part deals with the different processes which may complicate Mendelian segregation and which may be classified into three groups, according to BRIEGER (1937b) : a) Instability of genes, b) Abnormal segregation due to distur- bances during the meiotic divisions, c) obscured segregation, after a perfectly normal meiosis, caused by elimination or during the gonophase (gametophyte in higher plants), or during zygophase (sporophyte). Without entering into detail, it is emphasized that all the above mentioned complications in the segregation of some genes may be caused by the action of other genes. Thus in maize, the instability of the Al factor is observed only when the gene dt is presente in the homozygous conditions (RHOADES 1938). In another... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761945000100009 |
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| Brieger,F. G.. |
| 1) The present paper deals with variations in the structure of the inflorescences of the Maydeae Americanae, especially of the ear of Zea Mays, which came under observation during our genetical studies during the last 10 years. Care was tauken to include only such structures which were observed frequently and had in general an aspect which could not be described as a pathological abnormality, but rather as a reversion to a phylogenetically primitive type or as a new form. The aberrations may be summarized as follows: a) Individual flowers. Eeversion to the hermaphrodite state of the usually unisexual flowers in Maydeae were described. Such flowers are however already so well known that no details need to be given. b) Many flowered spikelets. The spikelet... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945001100001 |
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| Brieger,F. G.; Moreira,Sílvio. |
| The English resumé is given in a different form from the Portuguese "conclusões". In the former we gave mainly the results which may be of general interest, explaining the tables (quadros) and the procedure of statistical analysis, while in the other the properties of the different rootstocks are discussed in detail since they are of immediate local interest. 1. In a previous publication, Moreira (19) explained the layout and the first results of an experiment, under way since 1936 in the Limeira Exp. Sta., on the influence of twelve different types of Citrus rootstocks on three scion varieties : the oranges "Baianinha" and "Pera" and the grape-fruit "Marsh Seedless". We report here three main results obtained during the first six years of the experiment:... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945001000001 |
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| Buitendijk, A.M.. |
| De Haan (1833, p. 22-23, tab. B (Eudora) tenax (mouthparts)) gives the following latin description of his subgenus Eudora: "Os quadratum. Max. 5arum articuli secundi paralleli, medio in longitudinem sulcati, apice truncati; articuli tertii dilatati, margine superiore emarginati; articuli apicales abbreviati1). Max. 3iarum laciniae externae supra medium, paulum dilatatae, apice emarginatae. Max. 2arum lobi interni in laciniis interioribus externis multo breviores. Thorax vix dimidio latior quam longior, dorso convexus. Chelae crassae, in utroque sexu inaequales, sinistra minor. Abdomen in utroque sexu 7-articulatum; in maribus angusto-parallelum; articulus tertius prioribus latior; articuli versus apicem sexti sinuato-angustiores; sextus quadratus; Septimus... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/319147 |
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| Buitendijk, A.M.. |
| Van Dr. A. C. Oudemans ontving het Rijksmuseum van Natuurlijke Historic in 1942 ten geschenke de door hem in den loop der jaren bijeen gebrachte belangrijke verzameling van Acari. Deze verzameling omvat 5981 praeparaten van mijten, behoorende tot 1316 soorten. Verder legateerde Dr. Oudemans aan het museum zijn verzameling van afbeeldingen van dieren van deze groep, welke na zijn overlijden op 14 Januari 1943 werden ontvangen. Bij deze afbeeldingen, voor het meerendeel bestaande uit door Dr. Oudemans zelf gemaakte teekeningen (in het geheel 2045 bladen), heeft een groot aantal betrekking op soorten (of onderdeelen daarvan), van welke praeparaten in de verzameling aanwezig zijn, terwijl andere bladen met afbeeldingen betrekking hebben op vormen die niet als... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318256 |
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| Camargo,A. Pais de. |
| This paper reports a preliminary study of four sweet potato varieties, Russia, Napoleão, Roxa and Viçosa, carried cut in 1939-40 at the Central Experiment Station, Instituto Agronomico. Comparative plots of each variety were harvested after 3, 4, 5, 6, 7, 8 and 9 months of vegetation, the product being then examined for the following characters : a) Total yield b) Number of roots c) Average weight of the potates d) Production of different grades e) Qualities of the fresh roots f) Culinary value of the sweets potatoes The yield after three months of vegetation was very small for the four varieties, but increased considerably in the later harvests. The variety Napoleão attained its highest yield after six months, being early; Roxa yielded most after seven... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1945 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945001200004 |
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| Registros recuperados: 91 | |
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