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| Registros recuperados: 63 | |
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| Bakhuizen van den Brink, R.C.. |
| Originally it had been my intention to write a monograph of the Melastomataceae occurring in the Malay Archipelago. Owing to difficulties caused by the development of the political situation it was impossible for me, to carry out this plan to its full extent. As the important collections of the Herbarium of the Buitenzorg Botanical Garden could not be consulted and as most foreign herbaria too were inaccessible, I had to restrict myself almost entirely to the study of the collections preserved in the Utrecht and Leyden Herbaria. These however, though not so rich as those of the Buitenzorg herbarium, are very important, especially by the large number of type specimens. Of the great number of species described from parts of the Malay Archipelago outside the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1943 |
URL: http://www.repository.naturalis.nl/record/534897 |
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| Medina,J. C.. |
| Sisal (Agave sisalana Perrine) growing in various localities of the State of São Paulo is often heavely damaged by "leaf basal necrose", whose symptoms are identical with the "leaf foot disease" reported from Java, East Africa and Belgian Congo. The affected leaves show in the initial stages small spots of black, slightly shrivelled tissue on the lower part of the leaf. These gradually spread out. During the later stages the affected leaves bent over at this point. Only approximately mature leaves of plants between 18 to 30 months old are affected. This disturbance was first observed in Anapolis, Araraquara and Campinas. It was thought to be due to K deficiency in the soil. In order to prove this a small fertilizer experiment was established at Campinas... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1943 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051943000400002 |
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| Furnestin, Jean. |
| Scientists have always been interested in the biology of the sardine, but despite a large number of studies, it is still not very well understood. At the beginning of the century, sardines were considered as a great class migratory fish. Its periodic and successive appearances, from the north to the south of the Bay of Biscay, were considered as a unique formation invading, in spring, the west coast of Europe and swimming back to subtropical waters at the beginning of the "rough" season. Today's point of view, based on biometrical studies conducted over the last 25 years, does not validate these long-distance migrations. It's been demonstrated that the species can be divided into morphologically and biologically individualised groups (named "races"),... |
| Tipo: Text |
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| Ano: 1943 |
URL: http://archimer.ifremer.fr/doc/1943/publication-3374.pdf |
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| Le Gall, Jean. |
| The coast of French Western Africa undoubtedly has a great ichthyic resource. Every scientist who has worked on its marine fauna has acknowledged the multiplicity of its species and their richness. Each scientific mission has underlined the abundance of edible species and the intensive exploitation possibilities it had to offer. This point of view has been confirmed by the interesting results obtained by some high-sea trawlers from La Rochelle, Arcachon or Boulogne-sur-Mer which have abandoned the North Atlantic fisheries for a few years now and exploit on a regular basis those of the coast of Mauritania and Senegal. For each campaign (about a month long) these trawlers bring back: either 45 to 70 tons of selected and sorted fish (trawlers from La... |
| Tipo: Text |
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| Ano: 1943 |
URL: http://archimer.ifremer.fr/doc/1943/publication-3395.pdf |
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| Registros recuperados: 63 | |
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