. Journal of agricultural research . Journal of Agricultural Research Vol. XVIII, No. 11 Effect of Length of Day on Plant Growth Plate 73. Journal of Agricultural Research Vol. XVIII, No. 11 PLATE 73 A.—Phaseolus vulgaris from Peru and Bolivia exposed to light from 9 a. m. to 4p. m. Contained full-gro\\Ti seed pods when f)hotographed August 15, 1919. B.—Control series of Phaseolus left out of doors diuing the experiment. Showed noindications of flowering when photographed August °—20-—5 PLATE 74 A.—Mikania scandens L. exposed to light from g a. m. to 4 p. m. daily. Showedno indication
. Journal of agricultural research . Journal of Agricultural Research Vol. XVIII, No. 11 Effect of Length of Day on Plant Growth Plate 73. Journal of Agricultural Research Vol. XVIII, No. 11 PLATE 73 A.—Phaseolus vulgaris from Peru and Bolivia exposed to light from 9 a. m. to 4p. m. Contained full-gro\\Ti seed pods when f)hotographed August 15, 1919. B.—Control series of Phaseolus left out of doors diuing the experiment. Showed noindications of flowering when photographed August °—20-—5 PLATE 74 A.—Mikania scandens L. exposed to light from g a. m. to 4 p. m. daily. Showedno indications of flowering when photographed August 15, 1919. B.—Control plants of Mikania left out of doors during the test. Blossoming pro-fusely when photographed August 15. Effect of Length of Day on Plant Growth Plate 74
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagricul, bookyear1913
