72 APPLICATION OF PEINCIPLES OF HEREDITY TO BREEDING. 



Page. 



Characters of plants, correlation 70 



fluctuating variations 2S-25 



heterozygote 55-58 



latency, causes 65-70 



new, possibility 58-59 



non-Mendel ian 62-64 



variations resulting from change of location 61-62 



Cherry, Royal Anne, homozygote species 54-55 



Chicago University, mutation studies 65 



Chickens, Barred Plymouth Rock, mating with Indian Game chickens^ results. 14-15 

 Chromosomes, study of potential elements controlling sexual differences in 



plant breeding 11 



Chrysanthemum segetum, selection and results 61 



Collins, G. N., bulletin entitled "The Importance of Broad Breeding in Com," 



reference 44 



Colorado, potato-growing experiments 25 



Connecticut, corn-breeding methods, study 44 



Copenhagen, experiments in breeding beans and barley 24 



study of effect of seed selection 33 



Corn, breeding, broad, importance 44 



experiment station studies in Delaware 44 



cross-fertilized, effect of selection for high or low ears, table 37 



on oil and protein content , 36 



selection, results 37-46 



detasseled, planting, experiments and results 46 



hybrid, yield 55,56 



■ open-pollinated, breeding and planting methods 44-46 



seed selection, results 44 



white, planting alternately with yellow seed 45 



yellow, planting alternately with white seed 45 



Cornfield, experiments in fluctuating variations 23-25 



Correlation of characters of plants 70 



Corren, study of variegated plants 70 



Crops, self -fertilized, mass selection 33-34 



vegetatively propagated, hybridization and selection 46-47 



Crosses, reciprocal 59 



Crossing, artificial, selection without 26-46 



Dahlia, bud variations 31 



Dandelion, nonfertile, producing seeds and retaining vigor 25 



Davenport, C. B., studies in poultry crossing 14 



Delaware, corn breeding, experiment station studies 41 



De Vries, Hugo, experiments with Chrysanthemum segetum 61 



study of plant mutations 64-65 



Dodge, L. G., experiments in seed selection of potatoes 31-32 



Dominance, principle of heredity in plant breeding, examples 7-8 



Drinkard, experiments in crossing tomatoes 70 



East, E. M., methods of corn breeding 44, 57 



study of fluctuating variations in potatoes 26 



Emerson, R. A., study of hybrid beans . 56, 68 



England, Cambridge, studies in allelomorphism 17 



Evolution, plant-breeding changes and their causes 59-61 



Fluctuation, a cause of latency of characters of plants 69-70 



165 



