Читать книгу Manual of American Grape-Growing - U. P. Hedrick - Страница 15

In the preceding paragraphs we have seen that four species of grapes constitute the foundation of American viticulture. Nine other species furnish pure-bred varieties and many hybrids with the four chief species or among themselves. These are V. rupestris, V. Longii, V. Champinii, V. Munsoniana, V. cordifolia, V. candicans, V. bicolor, V. monticola and V. Berlandieri. Several of these nine species are of value in the vineyard or for stocks upon which to graft other grapes. The domestication of all of these is just begun, and each year sees them more and more in use in the vineyards of the country.

Plate I.—Two views of vineyards in California. Top, a vineyard in the orchard region of central California; bottom, a vineyard in southern California.