. Circular. Agriculture; Agriculture -- United States. DURANGO CO!'TON l.\ 111 MI'KUIAI. VALLEY . \t variety in the Atlantic States, whore the plants are smaller and more prolific and have much more open foliage. When the foliage becomes too dense only the growing ends of the stalks and vegetative1 branches have adequate exposure to the sun- light, while the fruiting branches are heavily shaded. Many of the buds are blasted and many of the bolls fail to reach normal maturity. Premature opening of the bolls and mildewing under the continuous shade also contribute to the inferiority of the fiber
. Circular. Agriculture; Agriculture -- United States. DURANGO CO!'TON l.\ 111 MI'KUIAI. VALLEY . \t variety in the Atlantic States, whore the plants are smaller and more prolific and have much more open foliage. When the foliage becomes too dense only the growing ends of the stalks and vegetative1 branches have adequate exposure to the sun- light, while the fruiting branches are heavily shaded. Many of the buds are blasted and many of the bolls fail to reach normal maturity. Premature opening of the bolls and mildewing under the continuous shade also contribute to the inferiority of the fiber. There are also many plants with short lint, showing that degenerate variations have. Fin. 2.—Columbia cotton plant (left) and Durango cotton plant (right), showing different habits of growth, at El Centro, Cal. The ( olumbia plant had 22 open bolls, the Durango plant 62. boon induced by the new conditions. Such degeneracy was especially noticeable among volunteer plants of the Columbia variety in the season of 1912. If the tendency to luxuriant growth and heavy foliage could be restrained by withholding water or planting on less fertile soils, somewhat more favorable results could doubtless be secured with Columbia cotton. But the Durango is much better adapted to the general conditions in the Imperial Valley, and there is no reason for making special efforts to grow the Columbia. The fact that the I oh-, mi. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Plant Industry. Washington, D. C. : U. S. Dept. of Agriculture, Bureau of Plant Industry
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Keywords: ., bookcentury1900, bookdecade1900, booksubj, booksubjectagriculture
