. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. 314 GENETICS IN RELATION TO AGRICULTURE smaller forms. That is, a dwarf form may spring from a large form or from another dwarf form as shown in Fig. 130. Another distinct group. Fig. —Bud mutations in .sports of the Boston fern. At the right (b) is the form, mdgnifica, a dwarf, asexual descendant of the variety, bostoniensis. The fern in the center (a) is a sport from this dwarf. It has a tendency to produce further sports and so could not be depended upon to breed true. At c is shown a-small
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. 314 GENETICS IN RELATION TO AGRICULTURE smaller forms. That is, a dwarf form may spring from a large form or from another dwarf form as shown in Fig. 130. Another distinct group. Fig. —Bud mutations in .sports of the Boston fern. At the right (b) is the form, mdgnifica, a dwarf, asexual descendant of the variety, bostoniensis. The fern in the center (a) is a sport from this dwarf. It has a tendency to produce further sports and so could not be depended upon to breed true. At c is shown a-small plant whose single frond resembles magnifica. At d is another sport that already displays instability in having two sorts of fronds. {After Boshnakian.). 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 Babcock, E. B. (Ernest Brown), b. 1877; Clausen, Roy Elwood, 1891-. New York, McGraw-Hill; [etc. , etc. ]
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