. Journal of agricultural research . Journal of Agricultural Research Vol. XVIII, No. 11 , PLATE 67 A.—Biloxi soybeans exposed to tlie light for 7 hours daily. When photographedAugust 15, 1919, all seed pods were mature and dry and the leaves were falling. B.—Control planting of Biloxi soybeans kept out of doors during the test. Whenphotographed August 15 there were no indications of blossoming. PLATE 68Biloxi soybeans: A.—Plants in box on left exposed to the light for 5 hours daily. Those in box onright kept out of doors throughout the experiment. When photographed August 15,1919, the plants
. Journal of agricultural research . Journal of Agricultural Research Vol. XVIII, No. 11 , PLATE 67 A.—Biloxi soybeans exposed to tlie light for 7 hours daily. When photographedAugust 15, 1919, all seed pods were mature and dry and the leaves were falling. B.—Control planting of Biloxi soybeans kept out of doors during the test. Whenphotographed August 15 there were no indications of blossoming. PLATE 68Biloxi soybeans: A.—Plants in box on left exposed to the light for 5 hours daily. Those in box onright kept out of doors throughout the experiment. When photographed August 15,1919, the plants on left contained fully matured seed pods and leaves wereyellowing, while plants on right had not blossomed. B.—Plants in box on left exposed to light daily for 7 hours; those on right exposed12 hours daily. While both lots blossomed and fruited promptly, the plants underthe longer light exposure grew much larger than those under the shorter August 19. Effect of Length of Day on Plant Growth PLATE 68 KA
Size: 1807px × 1383px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagricul, bookyear1913
