INDEX 



Aaronsohn, wild wheat, 78 

 Alfalfa, flower structure, 217 



Grimm variety, 216 



origin of, 215 



pollination in, 40, 207 



selection in, 293 



winter resistance, 218 

 Alkemine, rice pollination, 37 

 Allard, tobacco, inheritance in, 161 



tobacco mutations, 167 

 Apples, self -sterility in, 269, 271 



inheritance in, 271 

 Arny and Garber, weight of seed and 



plant vigor, 123 

 Arny and Hayes, border effect in 



plot tests, 61 

 Asparagus, pollination in, 253 



rust resistance, 253 



B 



Babcock and Clausen, crossing over, 

 27 



homozygosis following a cross, 

 117 



selection in sugar beets, 119 

 Backhouse, wheat species crosses, 79 



wheat-rye crosses, 106 

 Bailey, crosses in cucurbits, 256 



evolution in fruits, 264 



inheritance in raspberries, 272 



sweet corn, origin, 235 

 Bain and Essary, clover anthrac- 



nose, 215 



Ball, pollination, grain sorghums, 38 

 Balls, cotton, natural crosses, 38, 173 



cotton, inheritance, 175 

 Barley, awn in relation to yield, 104 



classification, 98 



Barley, independent Mendelian in- 

 heritance, 102 



inheritance of spike density, 28, 

 103 



pollination in, 36 



species crosses, 99 



winter vs. spring habit, 103 



xenia in, 103 

 Barrus, disease resistance in bean, 



244 



Beach, self-sterility in grape, 269 

 Beal, varietal crosses in maize, 202 

 Bean, classification, 241 



disease resistance in, 139, 244, 

 245 



flower structure, 243 



inheritance of characters, 242, 

 244 



M. A. C. Robust, 131 

 Beet, inheritance and breeding, 250 

 Belling, inheritance in velvet bean, 

 149 



varietal crosses, maize, 203 

 Biffin, barley inheritance, 102, 103 



disease resistance in wheat, 85, 

 134 



immediate effect of pollination 

 in wheat, 82 



linkage in wheat crosses, 79 



polonicum-wheat crosses, 79 



species crosses, barley, 101 



wheat pollination, 35 

 Bolley, flax, wilt resistance, 157, 286 

 Brand, alfalfa, Grimm, 216 

 Brassica, inheritance studies in, 251 

 Breeding, asparagus, 254 



beets, 250 



by crossing, 116 



by selection, 115 



cabbage, 252 



clover, 215 



319 



