. Experimental morphology. Protoplasm; Growth. 354 THE EFFECT OF WATER UPON GROWTH [Ch. Xn Gain ('92, '95), who studied the effect upon the entire plant, so that his results are of especial interest here. Gain planted seeds of various species in sand to which a little garden loam had been added. He was careful either to select seeds of equal size or, after sprouting had occurred, to weed out all but the normal, medium-sized ones. In one set of experiments, the soil contained from 3% to 6% of water; in the other, from 12% to 16%. Gain found that the entire plant grew faster in the humid than in
. Experimental morphology. Protoplasm; Growth. 354 THE EFFECT OF WATER UPON GROWTH [Ch. Xn Gain ('92, '95), who studied the effect upon the entire plant, so that his results are of especial interest here. Gain planted seeds of various species in sand to which a little garden loam had been added. He was careful either to select seeds of equal size or, after sprouting had occurred, to weed out all but the normal, medium-sized ones. In one set of experiments, the soil contained from 3% to 6% of water; in the other, from 12% to 16%. Gain found that the entire plant grew faster in the humid than in the dry soil, as the accompanying diagram, Fig. 97,. ~Fia. 97. — Curves of fresh weight of two similar seedlings of flax, one growing in moist, the other in dry, soil. The maximum weight (M) gained by the plant differs in the two cases, and also the time of gaining that weight. F, time of flowering; fm, time of fructification. (From Gain, '95.) indicates. The aerial parts of the plant are more affected than the subterranean. The ratio of growth of plants in moist soil to those in dry varied from (radish) to (bean).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Davenport, Charles Benedict, 1866-1944. New York, The Macmillan company; London, Macmillan & co. , ltd.
Size: 1334px × 1873px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1897
