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Genomic technologies for Hevea breeding
2019The commercial production of high quality natural rubber (NR) solely depends on Hevea brasiliensis Muell. Arg, (Para rubber tree) and accounts for >98% of total production worldwide. NR with its unique properties is an essential commodity for the automobile industry and its synthetic counterparts are in no way substitute to it.
Padmanabhan Mallinath Priyadarshan +1 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
Ernest P. Imle, John A. Stevenson
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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
Ernest P. Imle, John A. Stevenson
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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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2012
Hevea brasiliensis is the most recent domesticated tree species from Amazonian rain forest producing latex of commercial utility. Major hurdles for genetic improvement of rubber tree were attributed to its perennial nature, long juvenile period, and a narrow genetic base.
Thakurdas Saha, P. M. Priyadarshan
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Hevea brasiliensis is the most recent domesticated tree species from Amazonian rain forest producing latex of commercial utility. Major hurdles for genetic improvement of rubber tree were attributed to its perennial nature, long juvenile period, and a narrow genetic base.
Thakurdas Saha, P. M. Priyadarshan
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Economic Botany, 1977
We have pointed out that the story ofHevea as a crop covers barely a century, and we have mentioned six great steps inHevea domestication.
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We have pointed out that the story ofHevea as a crop covers barely a century, and we have mentioned six great steps inHevea domestication.
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The Instability of Hevea Latex
Rubber Chemistry and Technology, 1941Abstract In a study made on plantations in Malaya, it was found that the cause of instability is not the same for both fresh and preserved latex. The autocoagulation of fresh latex, as it will be shown, is not caused by the acid formed by bacterial action on the serum components (autoacidification).
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The Coagulation of Hevea Latex
Rubber Chemistry and Technology, 1930Abstract In checking up as to which substances are present in latex, we find the following: protein, which can act as a protective colloid, lipoids (sterols, lecithin which can protect the sterol, esters of sterols), and further the contents of the globules, which is probably viscous.
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Chain Scission in the Oxidation of Hevea. II
Journal of the American Chemical Society, 1955Abstract Oxidation of natural rubber in latex yields two molecules of carbon dioxide, one of formic acid and one of acetic acid for each rupture of the hydrocarbon chain. The yields of these products can be interpreted readily by reference to the structure of the primary oxidation products of 1,5-diolefins established by Bolland and Hughes.
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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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Kinetics of Cyclization of Hevea Latex
Industrial & Engineering Chemistry, 1951Abstract Kinetic measurements on rubber cyclization now are possible by a latex technique; these were undertaken to elucidate the mechanism of the reaction. According to a patented process, dispersions of Hevea latex particles in 70 to 80 per cent sulfuric acid are reproducibly isomerized to a high molecular weight cyclized rubber.
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