20 



Storrs The Control of Growth of Woody Plants by Photoperiodic 

 (Conn.) Treatment . Provide a program whereby recommendations can be 

 made to growers on how to apply photoperiodic treatments in 

 production of trees and shrubs most effectively by: (1) 

 Learning which are responsible to changes in day length and learn 

 morphological nature of their response. (2) Learning critical 

 intensity and duration of light that would prevent induction of 

 a dormant condition. (3) Learning date when plants should be 

 removed from long day treatment to allow sufficient time to per- 

 mit hardening of tissues in preparation for winter; and (h) 

 effect of day length on rooting of cuttings and on germination 

 of seed. 



PI. Sci. 268 



Colo. Improving Sagebrush Lands to Obtain Maximum Range Live- 

 stock Production. — B. Eradication Phase . To determine most 

 practical and economical methods to improve sagebrush rangelands 

 of low productivity by using the following better range manage- 

 ment practices singly or in combinations: a. use of scientific 

 grazing systems and other improved livestock management practices, 

 b. eradication of sagebrush, and c. artificial reseeding of both 

 abandoned croplands and treated sagebrush lands to adapted forage 

 plants. 



For. and Range Mgt. 65b 



Mass. Forest Stand Improvement by the Use of Chemicals to Kill 

 Inferior Trees . To test use of various chemicals to kill weed 

 trees in Massachusetts forests. 

 For. 73 



N. H. The Effects on Vegetation of Weed-Control Measures Applied 

 to Woody Plant Areas . To determine (1) in areas such as public 

 utility lines where extensive work is being carried on in New 

 Hampshire, the qualitative and quantitative effects of relatively 

 non-selective foliar spraying on the ecological successions of 

 desirable plants and weeds; and (2) effects on vegetational 

 successions of currently used weed control practices in blueberry 

 pastures. 



Bot. 68 



N. Y. Woody Brush Control . To determine the best methods of 

 (Cornell) application, volumes and concentrations to use, and effect of 



dormant treatment in brush poisoning with the selective, hormone 



weed killers. 



Conserv. 8l-E 



Wyo, 



Effect of Big Sagebrush Control upon the Composition, Density 

 and Production of Native Forage Species ! To (1) determine effect 

 of big sagebrush control upon density and composition of sagebrush- 

 grass type rangeland; and (2) study effect of various amounts of 

 sagebrush eradication upon production of native forage species. 



Agron. U8U (W-ll) 



