. Bulletin. 1901-13. Agriculture; Agriculture. NEW-PLACE EFFECTS AND ACCLIMATIZATION. 23 The leaves become larger, softer, and more hairy, with more numerous lobes, and have a closed sinus at the base. The extent of these changes may be judged by comparing figures 1 and 2, which represent leaves of the usual form on plants of Kekchi cotton before and after acclimatization. Both plants were grown under the same conditions at Bard, Cal., in the season of 1910. The involucres have more numerous and larger bractlets. The bolls, if any are pro- duced, are much smaller than in Guatemala and have onl
. Bulletin. 1901-13. Agriculture; Agriculture. NEW-PLACE EFFECTS AND ACCLIMATIZATION. 23 The leaves become larger, softer, and more hairy, with more numerous lobes, and have a closed sinus at the base. The extent of these changes may be judged by comparing figures 1 and 2, which represent leaves of the usual form on plants of Kekchi cotton before and after acclimatization. Both plants were grown under the same conditions at Bard, Cal., in the season of 1910. The involucres have more numerous and larger bractlets. The bolls, if any are pro- duced, are much smaller than in Guatemala and have only three or four locks, very seldom five. The lint shoi-tens from nearly an inch and a quarter to an inch or less and becomes very sparse. The fuzzy covering of the seeds may become abnormally developed or may show a greenish Fig. 2.—Leaf of acclimatized plant of Kekchi cotton. (Natural size.) These changes are not permanent. They represent merely a tem- porary suppression of the normal characters, not a loss from trans- mission. In five or six generations the expression of the normal characters is reestablished, and the Kekchi cotton returns to its original condition of fertility. At the same time the bolls increase in size and the fiber shows a length and abundance equal to that of the best plants of the original Guatemalan stock. The 3-locked bolls that occur frequently on the large, infertile, unacclimatized plants are replaced by a normal proportion of 5-locked bolls. Attention was first called to this difference in the number of locks by Mr. Eowland M. Meade, at San Antonio, Tex.^ in the season of 256. 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, Soils, and Agricultural Engineering. Washington Govt. Print. Off
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