Idaho The Biochemical Basis of Resistance and Susceptibility of 



Plants to Carbamate Herbicides , Learn reasons for susceptibility 

 and resistance of plants to carbamate herbicides. 

 Agr. Chem. 3hh (W-3>2 for future activation) 



111. The Adsorption Movement, and Effect of Herbicides in Plants 



and Soils , (l) Study factors affecting adsorption and trans- 

 location of herbicides in higher plants. (2) Study residue, 

 movement, and nature of absorption of herbicides in different 

 soils. 



Agr on. 15-378 



Ind. Physiological Studies of Herbicides in the Control of Peren- 



nial Weeds . To (1) learn seasonal variations in chemical constit- 

 uents of perennial weeds and correlate variations with the efficacy 

 of various cultural and chemical control practices; (2) investigate 

 movement of herbicides in underground portions of certain perennial 

 weeds and learn influence of additives and environment on this 

 movement; and (3) investigate tolerance of weed and crop plants to 

 promising herbicides and to study physiological response of plants 

 to such materials. 



Bot., PI. Path. 778 



Ind. Studies of Germination of Weed Seeds . (1) Study specific 



requirements for germination in weed seed; correlate requirements 

 with life of these seeds in field. (2) Devise chemical methods 

 for forcing or inhibiting germination of seeds in soil. 

 Bot., PI. Path. 972 (NC-10) 



Maine Penetration and Persistence of Dalapon and CMU in Undistributed 

 Podzol Profiles and Their Absorption by Woody Plants . To learn 

 effect of spacial distribution of organic materials on phototoxicity 

 of Dalapon when applied to virgin podzol soils. 

 Agron. 90 (NE-12) 



Md. Influence of Environmental Factors on the Effectiveness of 



Several Carbamate Herbicides. To (1) determine influence of water, 

 soil texture, soil pH, soil fertility level, and temperature on 

 effectiveness of several carbamate herbicides; and (2) physiologi- 

 cal, chemical and morphological changes in plants induced by use of 

 these herbicides. 



Agron. B-58-d (NE-12) 



Mass. The Relation of Some Environmental Factors and Chloro CIPC 



Applications to the Growth of Onions . (1) Learn relation of CIPC 

 applications and soil texture and moisture to growth response and 

 plant injury of set onions; (2) what conditions are responsible 

 for damage resulting from this treatment. (3) Make study of 

 factors as: toxicity of CIPC to plants at temperatures below 60°F., 

 effect of rains leaching herbicides into root zone of crop. 

 Hort. 92 (NE-12) 



