. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom. Gardening -- Dictionaries; Plants -- North America encyclopedias. 1962 WALNUT by means of two ferments or enzyms secreted by the organism. One is a diastatic ferment which converts the starch of Walnuts into grape sugar; the other is a peptonizing ferment which digests the proteids
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom. Gardening -- Dictionaries; Plants -- North America encyclopedias. 1962 WALNUT by means of two ferments or enzyms secreted by the organism. One is a diastatic ferment which converts the starch of Walnuts into grape sugar; the other is a peptonizing ferment which digests the proteids of the cells. The action of these ferments becomes manifest in the development of a water-soaked band immediately surrounding the margin of the blackened infected spot it the disease is active, and this appearance readily dis- tinguishes this malady from all other injuries to the nut or branch. As the secretion of the two ferments depends largely upon a temperature of (15° to 75° F., a much lower temperature is unfavorable to the destruc- tive action of the blight upon the tissues, and when such low temperature prevails the infected points are likely to be cut out through the action of the cells of the Walnut. The losses from Walnut bacteriosis are often heavy, especially in individual orchards or special localities. A loss of 50 per cent of the crop is not uncommon, and. 2713. Walnut orchard in Southern California occasionally as high as 80 per cent of the nuts are affected in badly diseased orchards. The treatment of this Walnut disease has been found to be difficult, but the spraying of the dormant tree has shown a considerable saving when Bordeaux mixture is used. It has also been learned that the hardshell Walnuts are comparatively free from this disease, and that certain softshell varieties are so nearly free that the grafting of nursery stock from these resistant trees is contemplated for new orchards. As no species of Wal- nut except J. reqin has thus far shown this d
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1906
