. Day length and crop yields. Plants; Crop yields; Plant photoperiodism. A greenhouse equipped for present-day photoperiod studies on economic plants at the Bureau of Plant Industry Station, Beltsville, Md. The results of many studies here and elsewhere have helped to eliminate crop failure and have modified agricultural practices throughout the world. Recently crosses were made between a wild species of sugarcane (Saccharum spontavevm) from Turkistan, which blooms in July, with cultivated sugarcane (S. officinaL i, which blooms in November or December, By appropriate manipulations of photoper
. Day length and crop yields. Plants; Crop yields; Plant photoperiodism. A greenhouse equipped for present-day photoperiod studies on economic plants at the Bureau of Plant Industry Station, Beltsville, Md. The results of many studies here and elsewhere have helped to eliminate crop failure and have modified agricultural practices throughout the world. Recently crosses were made between a wild species of sugarcane (Saccharum spontavevm) from Turkistan, which blooms in July, with cultivated sugarcane (S. officinaL i, which blooms in November or December, By appropriate manipulations of photoperiod for each plant the times of flowering were synchronized so that crosses could be made between them. Tin- blooming period of the hybrids was found to be intermediate between those of the parents. The illustration on the cover page shows a progeny from such a cross. 'The purpose of these hybridizations was to combine those factors thai contributed cold hardiness to the wild species with the factors for yield and quality present in the cultivated sugarcane. A lisi of plants which -avc photoperiodicaUy sensitive would include most of tln»e o( economic importance crown in ihe United States 1!'. 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 Parker, M. W. (Marion Wesley), 1907-; Borthwick, H. A. (Harry Alfred), 1898-. Washington, D. C. : U. S. Dept. of Agriculture
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Keywords: ., bookcentury1900, bookpublisherwashingtondcusd, booksubjectplants
