72 CROSSBREEDING CORN. 



Page. 

 Ohio, adapted varieties of corn 10, 20 



Pike Crossing, Md., tests in crossbreeding corn. See Experiments. 

 Pollination. See Fertilization. 

 Productiveness of corn. See Yield. 



Rainfall, relation to yield of corn 24, 49 



Sanborn, J. W., on crossbreeding corn 64 



Seasons, influence on the production of yields of corn 7, 36, 63-64 



See also Rainfall. 

 Seed corn. See Corn, seed. 



Selection, factor in the production of higher yields of com 7-9, 19, 20, 67 



Self-fertilization. See Corn, self-fertilization. 



Sherman, Tex., tests in crossbreeding corn. See Experiments. 



Shull, G. H., on crossbreeding corn 64 



Silks of corn. See Inflorescence. 



Soil, conditions iu various crossbreeding tests. 7, 11, 12, 18, 20, 21, 24, 32-34, 36, 37, 45, 47 



South America, source of varieties of corn 31 



South Carolina, source of varieties of com 42-44 



Statesboro, Ga., tests in crossbreeding corn. See Experiments. 



Stover, comparison of yield of com crosses and parent varieties 12-15, 



17, 23-24, 26, 50-62 



Swingle, W. T., and Kellerman, W. A., on crossbreeding corn 64 



Webber, H. J., on crossbreeding com 64 



« 



Tassels of com. >See Inflorescence. 



Tennessee, source of varieties of corn 10, 31 



Tests in crossbreeding corn, general consideration 64-67 



See also Corn, Experiments, Yield, etc. 



Texas, adapted varieties of com 10, 31, 36 



tests in crossbreeding com 30-42, 65, 66 



Vanatter, P. O., on crossbreeding corn 64 



Varieties of corn used in tests 10, 



12-15, 17, 18, 23, 25, 26, 28, 31, 33-35, 39, 40, 42-45, 47, 48, 50-61, 63 

 See also Corn, varieties. 



Virginia, adapted varieties of corn 21-22 



Vitality of seed com. See Gemiination. 



Waco, Tex., tests in crossbreeding corn. See Experiments. 



Washington, D. C, source of varieties of corn 10, 19, 46 



Webber, H. J., and Swingle, W. T., on crossbreeding com 64 



Weevils, damage to varieties of corn 42-44 



Yield, comparison of crosses and parent varieties of corn 12-30, 32-42, 50-67 



See also Grain and Stover, 

 factors influencing productiveness of corn 7-9, 19, 22, 28-30, 62-64, 66 



218 



o 



