a study was made of diurnal trends in net photosynthetic rate and carbohydrate levels of unifoliolate leaves of soybean ( glycine max l. merrill ) under constant environmental conditions ( 50,000-lux light intensity , 24.5 c air temperature , 60 % relative humidity , and 300 microliters of co ( 2 ) per liter of air ) .
C0031764
photosynthetic
C0007004
carbohydrate