. Citrus fruits; an account of the citrus fruit industry, with special reference to California requirements and practices and similar conditions. Citrus fruit industry; Citrus fruit industry. 7)/.srr/.' and their (Umtrol >u i Tliis sliowed that mot- tled-leaf is not trans- mitted l)y l)nddin*;-. In 1910 R. R. Snow- den ^ advanced tlie. theory that mottled- leaf was dne to an ex- cess of magnesia or an improper ratio be- tween magnesia and lime in the soil. Snowden showed that the soils of some healthy groves aver- aged about parts of lime to 1 of mag- nesia, while the soils from sic
. Citrus fruits; an account of the citrus fruit industry, with special reference to California requirements and practices and similar conditions. Citrus fruit industry; Citrus fruit industry. 7)/.srr/.' and their (Umtrol >u i Tliis sliowed that mot- tled-leaf is not trans- mitted l)y l)nddin*;-. In 1910 R. R. Snow- den ^ advanced tlie. theory that mottled- leaf was dne to an ex- cess of magnesia or an improper ratio be- tween magnesia and lime in the soil. Snowden showed that the soils of some healthy groves aver- aged about parts of lime to 1 of mag- nesia, while the soils from sickly groves averaged of lime to 1 of magnesia. This theory was much dis- cussed at the time, but subsequent study brought to light so many exceptions to the supposed rule that the theory was greatly weakened. Heavy ap- plications of lime moreover ha\'e by no means proved a cure for the Fig. 132. — Advanced stage of mottled- leaf disease showing formation of mul- tiple buds. California Cultivator, Aug. 11, 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, J. Eliot, b. 1880. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
