. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. GRAFT-HYBRIDS AND OTHER CHIMERAS 370 green varieties of geranium {Pelargonium zonale). From his study of seedlings of tlie vvliite-edged variety he had come to reahzc that the color of the leaves on a seedling depends entirely upon the nature of the cells composing the vegetative cone or plumule. This led him to examine. a b c d Fig. 154.—Leaves of the Cratoegoniespili of Bronvaux and their components, a, Mespilus germanica (Medlar); d, Cratcegus monogyna (Whitethorn); b, CraicEQOviespilus Dardari,
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. GRAFT-HYBRIDS AND OTHER CHIMERAS 370 green varieties of geranium {Pelargonium zonale). From his study of seedlings of tlie vvliite-edged variety he had come to reahzc that the color of the leaves on a seedling depends entirely upon the nature of the cells composing the vegetative cone or plumule. This led him to examine. a b c d Fig. 154.—Leaves of the Cratoegoniespili of Bronvaux and their components, a, Mespilus germanica (Medlar); d, Cratcegus monogyna (Whitethorn); b, CraicEQOviespilus Dardari, with two outer layers of medlar cells; c, Cratmgomespilus Asnieresi, with one outer layer of medlar cells. (After Budcr.) the cells in white-edged and green leaves and he found that in a white-edged leaf there is an extra layer of colorless cells in addition to the true epidermis (see Figs. 155, 156 and 157). He concluded that a plant bearing all white- edged leaves must have a complete peripheral layer of the colorless cells just below the epidermis as shown in Fig. 157, a, and that a plant differing. 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. ]
Size: 1728px × 1445px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksu, booksubjectplantbreeding
