लेटेक्स की उपज दक्षिण अमेरिकी पेड़ों का छोटा जीन

hevea's Usage Examples:

The latex of this tree flows less freely than that of Hevea brasiliensis, and the collection of large quantities of the latex is attended with considerable difficulty.

" Para " rubber, which takes the first position in the market, is derived from species of Hevea, principally Hevea brasiliensis, of which there are enormous forests in the valleys of the Amazon and its tributaries, and also in Peru, Bolivia, Venezuela and Guiana.

known that the Hevea tree usually furnishes very inferior rubber if tapped before it is six or seven years old, and there is evidence to show that the quality of the rubber improves with the age of the tree.

The enormous increase in the commercial demand for rubber and the probability of the continuance of this increase in view of the great variety of purposes to which the material can be applied, has led to great activity in rubber planting in other parts of the world, especially in Ceylon and the Malay Peninsula and Archipelago, where the Para rubber trees (Hevea brasiliensis) has been successfully introduced, and numerous plantations; many of which have not been in existence for more than ten or fifteen years, are now contributing to the world's supply.

La Condamine ascertained the nature of the tree, now known as Hevea brasiliensis, from which the Para rubber of S.

Amongst arboreous families Leguminosae and Euphorbiaceae are prominent; Hevea belonging to the latter is widely distributed in various species in the Amazon basin, and yields Para and other kinds of rubber.

of laticiferous tubes arises (Papaveraceae, Hevea, 'c.).

The use of certain plants as rubber-producers (notably Hevea b~-a~iliensis, the Pam rubber-tree) depends on this property.

- Hevea brasiliensis (4 nat.

This rubber is obtained chiefly from Hevea brasiliensis, Mull.

hevea's Meaning':

small genus of South American trees yielding latex