. Citrus fruits;. Citrus fruit industry; Citrus fruit industry. Improvement of Citrus Trees by Breeding 117 this is not necessary, as the anthers do not produce pollen. After the operation has been completed a paper bag should be placed over the twig and tied with string. After two or three weeks the paper bags may be replaced by cheesecloth bags, which remain on till the fruit is picked for seed. The value of crosses or hybrids produced in this way cannot be determined for several years, or until the trees. Fig. 37.—Type of standard Washington Navel orange. have been reared to fruiting. By to
. Citrus fruits;. Citrus fruit industry; Citrus fruit industry. Improvement of Citrus Trees by Breeding 117 this is not necessary, as the anthers do not produce pollen. After the operation has been completed a paper bag should be placed over the twig and tied with string. After two or three weeks the paper bags may be replaced by cheesecloth bags, which remain on till the fruit is picked for seed. The value of crosses or hybrids produced in this way cannot be determined for several years, or until the trees. Fig. 37.—Type of standard Washington Navel orange. have been reared to fruiting. By top-working buds taken from the young seedlings into old trees the fruit may be secured earlier. The improvement of citrus fruits by this method is very slow and the results uncertain. Moreover it is doubtful whether an entirely new variety of orange or lemon, how- ever good, could gain much recognition in California in the face of the popularity of the Navel and Valencia oranges and the Eureka lemon. The history of the industry in California has shown a constant elimination of varieties. 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 Coit, John Eliot, 1880- [from old catalog]. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
