. The botany of crop plants : a text and reference book. Botany, Economic. UMBELLIFER^ 541 like rootstock, 2 to 4 inches long. These rootslocks con- stitute the edible portion of the plant (Fig. 223). There are two general types of the common celery: (i) self-blanching varieties—quick-growing, very tender, easily- blanching sorts, especially adapted for fall and early >vinter use (White Plume, Golden Self-blanching). Blanching (see page 250) is secured by keeping the leaf stalks away from the. Fig. 223.—Celeriac (Apium graveolens). (After Vilmorin.) light; the leaf blades, however, are perm
. The botany of crop plants : a text and reference book. Botany, Economic. UMBELLIFER^ 541 like rootstock, 2 to 4 inches long. These rootslocks con- stitute the edible portion of the plant (Fig. 223). There are two general types of the common celery: (i) self-blanching varieties—quick-growing, very tender, easily- blanching sorts, especially adapted for fall and early >vinter use (White Plume, Golden Self-blanching). Blanching (see page 250) is secured by keeping the leaf stalks away from the. Fig. 223.—Celeriac (Apium graveolens). (After Vilmorin.) light; the leaf blades, however, are permitted to grow in the light, so that the processes of food-making proceed in a normal manner, and the stalk is not stunted. Chlorophyll is formed only in those parts of the plant exposed to the light directly. Boards, paper or earth are placed about the stalks to exclude the light. (2) Green or winter varieties—not as quick-growing or easily blanched as those of the preceding type and, further-. 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 Robbins, Wilfred William, 1884-1952. Philadelphia : P. Blakiston's Son
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectbotanyeconomic
