. Science of plant life, a high school botany treating of the plant and its relation to the environment. Botany. Reproduction in Relation to Agriculture 229. Fig. 144. Fiber from new varieties of long-fibered cotton at the right, obtained by hybridizing and selecting progeny from the two forms producing the shorter fibers at the left. The hybrid offspring excel both parents in the length of fiber produced. desirable plants. Weeds as a class are plants in which re- production has reached the highest degree of efl&ciency. The sequoia may stand for the culmination of vegetative efl&ciency
. Science of plant life, a high school botany treating of the plant and its relation to the environment. Botany. Reproduction in Relation to Agriculture 229. Fig. 144. Fiber from new varieties of long-fibered cotton at the right, obtained by hybridizing and selecting progeny from the two forms producing the shorter fibers at the left. The hybrid offspring excel both parents in the length of fiber produced. desirable plants. Weeds as a class are plants in which re- production has reached the highest degree of efl&ciency. The sequoia may stand for the culmination of vegetative efl&ciency, the dandelion for efl&ciency ia reproduction and dispersal. The dandelion produces good seed without pollination; if the stem is cut, the plant develops numerous new sprouts; if the root is cut into small pieces, each piece may sprout from either end or from both ends at the same time. The dandelion can thrive in a swamp, and it can withstand the droughts of a sand plain. The sequoia still occupies the comparatively small area in which it existed several thousand years ago. It reproduces very slowly, and it is restricted to a single habitat. The dandelion has in recent times spread to aU parts of the world, and it occurs in most habitats, from the seashore to the alpine summits of mountains. In other words, it becomes adjusted to many 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 Transeau, Edgar Nelson, 1875-1960. Yonkers-on-Hudson, N. Y. , World Book Co.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1921
