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| Registros recuperados: 1.954 | |
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| Adriani, M.J.; Lensink, B.M.. |
| Kees Sipkes: florist in hart en nieren met een omvangrijke kennis van het plantenleven en met een heel eigen visie hierop. Het zijn vooral de vragen naar herkomst en verspreiding van soorten en naar de aard van het milieu, die hem steeds weer bezighouden, vooral bij het verschijnen of verdwijnen van soorten. Talrijk zijn zijn mededelingen op de ‘Floristenvergaderingen’ van de Koninklijke Nederlandse Botanische Vereniging, talrijk ook zijn tijdschriftartikelen en andere publikaties. Met vreugde begroette hij de vestiging van het Biologisch Station ‘Weevers’ Duin’ in Oostvoorne; hij speelde een belangrijke rol bij de voorbereiding van de vestigingsplaats hiervan. |
| Tipo: Article / Letter to the editor |
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| Ano: 1985 |
URL: http://www.repository.naturalis.nl/record/527004 |
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| Sibuet, Jean-claude; Mathis, B; Pastouret, Léo; Auzende, Jean-marie; Foucher, Jean-paul; Hunter, Peter; Guennoc, P; De Graciansky, Pc; Montadert, L; Masson, Douglas. |
| Tipo: Text |
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| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/00184/29494/27815.pdf |
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| Mennega, Alberta M.W.. |
| Aublet based Tontelea and its only named species, T. scandens, on material he collected in French Guiana, illustrated as pl. 10 in the original publication. Aublet’s specimens are incorporated in the herbarium of J. J. Rousseau (now located in the Paris Herbarium in herbier Denaiffe) and also in the Herbarium of the British Museum. The sheet in herbier Denaiffe was identified by Lanjouw and Uittien (1940) as the original for Aublet’s pl. 10, which shows a flowering twig, analysis of a flower, and a detached leaf much larger than the leaves on the twig. From a photograph of this sheet it appears that the inflorescence is reproduced only in fragmentary form in the drawing. In the latter the inflorescence is represented as a rather short, few-branched,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1985 |
URL: http://www.repository.naturalis.nl/record/535274 |
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| Boggess, William G.; Cardelli, Dino J.; Barfield, C.S.. |
| Classical approaches to the economics of pest management have focused almost exclusively on single-species models. This study develops and implements a methodology with which to evaluate multi-species, non-stochastic, managerial decisions subject to stochastic elements of the plant-insect system. Multi-species insect management strategies (combinations of scouting interval, threshold value, and choice of pesticide) are analyzed using a physiological mechanistic soybean plant growth model coupled to three insect population dynamics models. Preliminary results indicate that net returns are maximized and variance is reduced with lower thresholds and more frequent scouting than current recommendations. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1985 |
URL: http://purl.umn.edu/29987 |
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| Gradstein, S.R.; Hekking, W.H.A.. |
| This catalogue provides an annotated listing of the liverworts and hornworts from the Guianas (Guyana, Surinam, French Guiana), based on the literature and on new data that have become available in the framework of the “Flora of the Guianas” project. In total 375 species in 93 genera are recorded, including more than 100 species and 28 genera new to the Guianas. A list of synonyms (including 30 new ones), a systematic arrangement of the genera and families, and an index to the collectors are also given. |
| Tipo: Article / Letter to the editor |
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| Ano: 1985 |
URL: http://www.repository.naturalis.nl/record/535264 |
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| Camargo,Carlos Eduardo de Oliveira. |
| Em dois experimentos empregando soluções nutritivas, foi estudada a tolerância de cultivares de trigo na presença de 5mg/litro de Al3+, medida pela capacidade de as raízes primárias continuarem a crescer em solução nutritiva completa sem alumínio, após permanência de 48 horas em solução contendo alumínio com diferentes concentrações de fósforo, controle do pH e temperatura de 25 ± 1ºC. No primeiro experimento, foram estudados oito cultivares de trigo em soluções nutritivas contendo quatro níveis de fósforo (0;15,5; 31,0 e 62,0mg/litro) combinados com três níveis de pH (4,0; 5,0 e 6,0). Os cultivares CNT-8 e Siete Cerros foram sensíveis e, BH-1146, IAC-18, IAC-13, C-3, IAC-17 e Alondra-4546, tolerantes a 5mg/litro de Al3+ nas soluções de tratamento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alumínio x fósforo; Soluções nutritivas; Tolerância e sensibilidade à toxicidade de alumínio; Cultivares de trigo tolerantes e sensíveis ao Al. |
| Ano: 1985 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051985000100005 |
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| Blank, Steven C.. |
| University agricultural economics programs were surveyed to assess the changes of the past decade. Undergraduate enrollments increased significantly while graduate enrollments were unchanged on average. Overall, agricultural economics departments became much larger relative to the average size of colleges of agriculture. Despite some changes in expectations concerning future growth areas, most programs appear to have been successful in meeting students' demands. |
| Tipo: Journal Article |
Palavras-chave: Teaching/Communication/Extension/Profession. |
| Ano: 1985 |
URL: http://purl.umn.edu/32313 |
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| Registros recuperados: 1.954 | |
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