U3 



Calif. The Application of Quantitative Genetics to Plant Breeding 

 Theory and Practice . To (1) study appropriate metrical charac- 

 ter in plants in order to evaluate genetic and environmental 

 forces governing these characters; and (2) apply results to 

 breeding of improved varieties of crop plants. 

 Agron. l£62 



Ind. Nutant Genes and Exotic Germ Plasm in Corn and Their Use 



in the Production of Superior hybrids" ! (1) Incorporate sources 

 of genetic diversity present in the varieties of maize from 

 Central and South America into our breeding stocks. Study (2) 

 effects of mutant genes on plant growth with a view to finding 

 those having some advantageous aspects for crop production, (3) 

 biochemical agencies through which these mutant genes affect 

 plant growth and development. 

 Bot. and PI. Path. 883 



Md. Sweet Potato Breeding and Selection with Particular 



Reference to Quality and Resistance to Cracking . Develop 

 varieties having resistance to cracking, incorporated with high 

 quality of marketable roots before and after storage. Selections 

 will be made with consideration of other characteristics required 

 for commercial acceptability for fresh market and for processing. 

 Hort. Q-81-B 



Minn. Radiation as a Tool in Horticultural Crop Breeding , (l) 

 Study mutagenic effectiveness of radiations upon several fruit 

 and vegetable plants with respect to dosage, conditions, and time 

 of radiation, and in relation to periods of growth, dormancy, and 

 rest periods of plants and seeds. (2) Study effects of radiations 

 on subsequent development of plants and seeds. (3) Produce muta- 

 tions useful to fruit and vegetable breeders. 

 Hort. 2127 Coop. ARS 



Miss. Testing, Selecting and Breeding Collar ds, and a New Study 

 of Factors Associated with the Flowering Response . To (1) test 

 available varieties for uniformity in plant type and productivity, 

 (2) develop uniform type adapted to home and market use. (3) 

 study influence of photoperiod, light intensity, temperature, and 

 growth regulators on inducing and inhibiting flowering response. 

 Hort. HK-18 





Okla. Exploratory Studies in Radiations and Radiochemistry in 



Small Grains. To (1) determine validity of use of ultra-violet 

 light in varietal testing of small grains; (2) use radiant energy 

 sources to aid in production of insect, disease, and low tempera- 

 ture resistant varieties; and (3) explore uses of radioisotopes 

 as energy sources and as tracers in small grains research. 

 Bot., PI. Path., Ent., Agron. 86l Coop. ARS 



