Results 181 to 190 of about 33,220 (227)
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1987
The genus Hevea is a member of the Euphorbiaceae and is endemic to the Amazon basin and its neighbouring parts including Matto Grosso, Upper Orinoco and the Guianas. The taxonomy of the genus has been intensively studied (29). Nine species are now recognized in the genus and of these only H. brasiliensis is important economically.
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The genus Hevea is a member of the Euphorbiaceae and is endemic to the Amazon basin and its neighbouring parts including Matto Grosso, Upper Orinoco and the Guianas. The taxonomy of the genus has been intensively studied (29). Nine species are now recognized in the genus and of these only H. brasiliensis is important economically.
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Hevea : micropropagation by somatic embryogenesis
1997The different steps of the process for maintained somatic embryogenesis were described. The current yields of the process were shown. They led to discuss on the limiting factors with the prospect of mass micropropagation. The first field trial with five, years old vitroplants was analysed. First conclusions were promising.
Carron, Marc-Philippe +2 more
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Mycologia, 1945
In December, 1943, an unknown disease characterized by a severe leaf spotting was found in a nursery of Hevea Spruceana at Turrialba, Costa Rica. Six weeks later, following a prolonged rainy period, this disease had reached epiphytotic proportions in the spruceana nursery where it was causing leaf, petiole, and twig blight, and also was producing minor
John A. Stevenson, Ernest P. Imle
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In December, 1943, an unknown disease characterized by a severe leaf spotting was found in a nursery of Hevea Spruceana at Turrialba, Costa Rica. Six weeks later, following a prolonged rainy period, this disease had reached epiphytotic proportions in the spruceana nursery where it was causing leaf, petiole, and twig blight, and also was producing minor
John A. Stevenson, Ernest P. Imle
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Heveas problem: The Fountain [PDF]
Report is the result of the working during 94th European Study Group with Industry in Sonderborg.
Balci, Adnan +11 more
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Rubber Chemistry and Technology, 1954
Abstract Phosphatides, together with other lipin substances, were extracted from fresh latex in the form believed to be that in which they naturally occur. Analysis, after removal of water-soluble impurities, gave evidence that the total lipin contained approximately 51 per cent lecithin, 10.5 per cent inositol phosphatide, 3 per cent ...
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Abstract Phosphatides, together with other lipin substances, were extracted from fresh latex in the form believed to be that in which they naturally occur. Analysis, after removal of water-soluble impurities, gave evidence that the total lipin contained approximately 51 per cent lecithin, 10.5 per cent inositol phosphatide, 3 per cent ...
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HEVEA-PRODUCTS AND POLYPROPYLENE
Herald of Technological UniversityThe main source of natural rubber is hevea, a genus of evergreen monoecious rubber-bearing trees. Natural rubber belongs to biodegradable polymers and does not accumulate in nature. In this regard, it can be used as a biodegradable additive for polypropylene, which is not biodegradable.
V.V. YANOV +2 more
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Manuring of Hevea Brasiliensis
1925Malayan Agricultural Journal, Volume 13, Issue 5, pp.
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