INDEX 



663 



Macoun, apple breeding, 295 

 Maize, 317 



aphis resistant hybrids, 410 



bud sports, 273 



centralized seed production, 361 



chromosome number, 57 



collecting stock seed, 341 



competitive action of factors for flinty and 

 floury endosperm, 150 



complementary factors in, 140 



crossbreeding, 354 



crossed with teosinte, 296, 410 



crossing inbred strains, 354 

 varieties, 356, 358, 360 



dominant mutations, 274 



double fertilization in, 151 



ear-to-row method of breeding, 327, 433 



economy of comparing yields, 356 



factors for protein and oil, 333 



grain, physiological characters, 333 



high and low ears, 329 

 and low oil, 328 

 and low protein, 328 



hybridization of, 344 



Illinois experiments, 327, 330, 331, 333 



immediate effect of crossing, 360 



inbreeding in, 325, 354, 356 



inheritance of starchy and sweet endosperm, 



79 

 of purple and white aleurone, 81 



mass selection in, 292, 336 



method of comparing yields, 356 

 of producing hybrid seed, 361 



multiple allelomorphs in, 159 



mutations in, 367 



naturally cross-fertilized, 257 

 ' pure line concept and, 293 



purple sweet X white starchy, 84 



remnant system, 335 



role of selection in breeding, 333 



selection in breeding, 325 



superior qualities in Fi, 359 



system of aleurone color factors in, 163 



tall and dwarf, 174 



use of Fi seed, 356 



vigor in Fi hybrids, 231, 233, 253 



water requirement, 402 



yield of inbred strains, 354 

 Malva hybridized, 438 



mauritiana X M. sylvestris, 230 

 Malvaceae, variegation in, 381 

 Mammals, sex-determination in, 636 

 Man, color-blindness, 197 



defects in, 524 



disease immunity in, 528 



sex-determination in, 538 



sex-inheritance, 196 



Bex-ratios in, 540 

 Manifold effects of factors, 133 

 Marking individual animals, 602 

 Marryat, Miss, Mirabilis jalapa, 148 

 Marshall, F. H. A., castration effects, 549 



" Physiology of Reproduction," 551 



sterility, 552 



Marshall, F. R., Redficld theory, 483 

 Mass selection, 260, 291 

 in cotton, 292 

 in fowls, 457 

 in maize, 292, 330 

 in small grains, 292 

 usefulness, 340 

 Material, plant breeding, 299 

 Maternal impressions, 572 

 Mathematical adequacy of Mcndcliam, 77 

 Mathiola, hybridized, 438 



Miss Saunder's factor system in, 166 

 Matroclinous species hybrids, in Digitalis, 229 



in (Endthera, 229 

 Mauz, species hybrids, 230 

 Mayer, chimeras, 378 

 MoCann, studbook records, 466 

 McCombie, breeder, 570 

 Mean, calculation and significance, 40 



of an Ft population, 184 

 Mechanism, segregation, 61, 274 

 Medicago falcata, 296 

 lupulina, 296 



media (falcata X sativa), 296 

 sativa, 296 



Medlar-whitethorn chimera, 378, 379 

 Meek, chromosomal dimensions, 264 

 Melandrium, hybridized, 438 

 Mendel, experiments with peas, 69, 77, 78, 144 

 investigations, 1 

 peas, 174 



principle of segregation, 104, 110 

 re-discovery, 438-439 

 segregation discovery, 68 

 Mcndelian, analysis of CEnothcra phenomena, 



247 



of wheat-rye hybrids, 238 

 characters, 71 

 conceptions, modern, 242 

 experiment, goodness of fit in, 101, 102 

 explanation modified, 248 



of Antirrhinum cross, 222 

 factor, 71 



for variegation, 273 

 factors, affecting fertility, 554 



nature and expression of, 129 

 heredity, 71 

 inheritance, 57, 59. 188, 224, 333 



independent, 68 

 interpretation of heredity, 67, 77 



of prepotency, 574 

 "laws" modified and extended, 439 

 principles, application of, 342 

 establishment of, 85 

 operation of, 70, 515 



principles and quantitative inheritance, 174 

 problems, complexity, 100 

 ratios, forces tending to disturb, 102 

 methods of testing, 100 

 peculiar. 132, 137, 139, 140. 141. 142 

 terminology, 71 

 theory of heredity, 7 



of sex, 196, 205, 544, 546 

 Mendelism, cardinal feature of, 68 



