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en Ps 
BN—29539 
A plant physiologist checks instruments for measuring and recording microclimatic data at University Park, Pa. 
Microclimatic information is essential in establishing the relationship of climatic variables to germination, reproduc- 
tion, and persistence of forage species. 
M-1986 
Nonmowed pasture (left) and mowed pasture show beneficial effect of mowing at the proper time on grass im- 
provement and brush control near Woodward, Okla. Physiological research can provide information for developing 
superior grassland management practices. 
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