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Synopsis: No germination occurred below 65° or above 95° F. Growth was slow at temperatures below 75° and above 90° F. Pollen was kept successfully for several days when stored in a household refrigerator.
2 Formerly graduate assistant in Genetics, A. and M. College of Texas; now Agronomist, Virgin Islands Agricultural Research and Extension Program, USDA, Kingshill, St. Croix, U. S. Virgin Islands. Acknowledgements are made to B. C. Langley, Superintendent, Substation No. 20, Texas Agr. Exp. Sta., for supplying the material used in this study and for valuable suggestions, and to R. G. Reeves, Genetics Department, A. and M. College of Texas, for aid in preparation of the manuscript.
Received for publication December 7, 1957.
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