|
|
|
| Registros recuperados: 391 | |
|
|
| Malavolta,E.; Haag,H. P.; Johnson,C. M.. |
| Young coffee plants (Coffea arabica L., var. Mundo Novo) were grown in nutrient solution purified from micronutrients contaminants by the method of MUNNS & JOHNSON (1960). All plants, except those in the control treatment, wer given all macronutrients and all micronutrients except one which was omitted in order to induce its shortage. Symptoms of deficiency were obtained for all known micronutrients but chlorine. Measurements, observations and chemical analysis of leaves allowed the following main conclusions to be drawn. 1. The relative influence of micronutrients in growth-measured by the fresh weight of the entire plant - was as follows: -Fe -Zn -Cu -Mo -Mn complete = -B = -CI. that is: the omission of iron from the nutrient solution caused the... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1961 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761961000100008 |
| |
|
|
| Bacchi,Oswaldo. |
| Dada sua extrema sensibilidade à desidratação, a semente de ingá (Inga edulis Mart.) tem, em condições normais de armazenamento, uma longevidade bastante curta. Mesmo quando conservada dentro do próprio fruto, sua capacidade germinativa já se apresenta com evidentes sinais de enfraquecimento após 14 dias. De acôrdo com os resultados ora apresentados, o fator umidade constitui, realmente, o principal responsável pela maior ou menor longevidade da semente. Em todos os ensaios realizados, a perda de vitalidade se iniciou quando o teor de umidade das sementes se encontrava ao redor de 35%. A influência da temperatura foi apenas indireta, aumentando ou diminuindo a rapidez de desidratação das sementes. Embora mantendo seu teor inicial de umidade, as sementes... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1961 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051961000100035 |
| |
|
|
| Berthois, Léopold; Guilcher, André. |
| Presque tous les types lithologiques que nous avons dragués ont pu être identifiés d'après les roches récoltées en Irlande ou en Grande-Bretagne. Les roches immergées dont les caractères microscopiques ne correspondent à aucun des échantillons récoltés à terre sont les suivantes: STATION 18. Micaschiste différent du micaschiste dalradien récolté à terre. Cette disparité n'est pas très surprenante étant donné les variations habituellement observées entre des micaschistes d'une même série cristallophyllienne. Calcaire à ostracodes, par la structure microcristalline de sa pâte, ce calcaire s'apparente à ceux du Crétacé récoltés à terre; il en diffère par sa faune. Gneiss à feldspaths calco-alcalins. Bien que nous n'ayons pas récolté cette roche à terre,... |
| Tipo: Text |
|
| Ano: 1961 |
URL: http://archimer.ifremer.fr/doc/1961/publication-4263.pdf |
| |
|
|
| Nedelec, Claude; Libert, Louis. |
| Dans cette dernière partie, nous décrirons principalement l'installation et les manoeuvres classiques sur un chalutier travaillant par le côté. Au cours de cette description, nous donnerons des principes de base ayant trait à la question importante des relations existant entre la sonde et les longueurs des funes, bras et entremises. Nous citerons également les appareils qui viennent actuellement compléter l'équipement d'un chalutier moderne. Nous terminerons par quelques données sur les manoeuvres particulières à certains bateaux ou à certaines méthodes de pêche. |
| Tipo: Text |
|
| Ano: 1961 |
URL: http://archimer.ifremer.fr/doc/1961/publication-4264.pdf |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Laar, W. van. |
| It is generally understood that characters of the genitalia are indispensable for the natural classification of most groups of the Lepidoptera. The genital structures are of great value, especially in cases where difficulties may arise in distinguishing groups on external characters, like venation, colour, etc. Following this tendency, in the present work the female genitalia of the species of Depressaria Hw. s.l. occurring in the Netherlands are figured and described. Moreover, an attempt to improve the possibilities for identification may be useful, as some species have economic significance. The male genitalia of the European species of this group have been described and figured by Hannemann (1953, 1954, 1958), who divided it into several groups of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/318724 |
| |
|
|
| Ayres,G. C. de Mello; Camargo,R. de. |
| Células de Saccharomyces carlsbergensis (IZ-1834) foram crescidas e adaptadas, progressivamente ao meio de caldo de cana esterilizado e contendo 0,001%, 0,002%, 0,003%, 0,004% e 0,00% de emulsan Al (v/v) além do tratamento testemunho isento de Emulsan Al. Estas células, levadas a Warburg fermentaram: glicose, rafinose. Não fermentaram: galactose, maltose e lactose. Não exibiram praticamente fermentação endógena. Glicose e caldo de cana tiveram seus rendimentos elevados, no caso das células utilizadas serem aquelas adaptadas aos diferentes teores de Emulsan Al. A fermentação da rafinose sofreu notável aceleração quando as células utilizadas foram adaptadas à Emulsan Al, sendo que a aceleração foi da ordem de 2 a 3 vêzes àquela observada no experimento com... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1961 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761961000100016 |
| |
|
| |
|
| |
|
| |
|
|
| Lang, Ernst M.. |
| Wie fast jeder Zoologische Garten in Europa hält auch der Basler Tiergarten eine Flamingo-Schar. Als erster bunter Gruss steht diese prächtige Vogelgruppe gleich beim Eingang und jeder Besucher bleibt staunend vor diesen grotesken Vögeln stehen. Bis vor kurzem erfolgte aber, wie in allen andern Gärten, niemals eine Brut. Und da der heutige Tiergärtner das Gefühl hat, seine Tiere müssten sich fortpflanzen, wenn sie sich wirklich im Zoo wohlfühlen, haben wir seit einigen Jahren unser besonderes Augenmerk auf unsere Flamingos geworfen. Diese Vögel leben auf einer Wiese mit einem Weiher und einem Bambusgehölz. Gegen das Publikum sind sie nur durch Steinreihen abgegrenzt und sobald die Besucher den Garten verlassen, betreten die Flamingos auch den vor ihrer... |
| Tipo: Article / Letter to the editor |
|
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/503869 |
| |
|
|
| Sleumer, H.. |
| Since the beginning of the printing of the author’s revision of ’The Genus Rhododendron in Malaysia’ in July 1959 (published in Reinwardtia 5, 2 (March 1960) 45-231), recently collected herbarium material especially from Borneo and New Guinea has amounted to such an extent, that a supplement becomes necessary. The numbers refer to those given in the author’s above cited work. |
| Tipo: Article / Letter to the editor |
|
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/525670 |
| |
|
|
| Sleumer, H.. |
| G. abbreviata J.J.S. in Fedde, Rep. 35, 1934, 292; Sleum., Reinwardtia 4, 1957, 172. SUMATRA. Tapanuli, Tele, S. of Sidikalang, Alston 14878. Westcoast, G. Singgalang, 1900 m, Meijer 5919. |
| Tipo: Article / Letter to the editor |
|
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/524959 |
| |
|
|
| Sleumer, H.. |
| Within the genus Vaccinium L. this revision of its Malaysian species — which comprises more than half of the total number of species of the genus — is the last in a series of modern treatments made for North America by W. H. Camp, for the Pacific area by C. Skottsberg, and for tropical America and tropical Asia by the present author. The work formerly done in Malaysian Vaccinium has been limited to islands, as that by J. J. Smith and Schlechter for a part of New Guinea, by Copeland f. for the Philippines, and by Amshoff for Java, with the shortcomings necessarily connected with such too local work. The sections proposed for the Malaysian species in my general system in 1941 have been found still useful and are kept here except a nomenclatural change in one... |
| Tipo: Article / Letter to the editor |
|
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/524845 |
| |
|
|
| Kern, J.H.. |
| After Boeckeler's treatise on the species of Scleria known in his day (5), no comprehensive study on the genus has ever been published. The preparation of an up-to-date monograph would be an arduous task, not only owing to the large size of the genus, but also to the numerous problems encountered in its delimitation and its subdivision. Fortunately several very valuable studies on the Scleriae of America and Africa have been published lately, which are important precursors to a future monographic treatment. Core (14) revised the American species, Chermezon (8, 9) those of Madagascar, Piérart (24) published a study on the species of Belgian Congo and Ruanda-Urundi, and Nelmes (22, 23) gave an account of the genus for the whole of Africa. The history of... |
| Tipo: Article / Letter to the editor |
|
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/526179 |
| |
| Registros recuperados: 391 | |
|
|
|
