Phytopathology Volume 3 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ... The development of farm crops resistant to disease. U. S. Department of Agriculture, Yearbook 1908: 453-464. 1909. Orton, W. A. The development of disease-resistant varieties of plants. IV" Conference internationale de genetique, Paris, 1911, pp. 247-265, figs. 9, 1913. is convinced that a similar statement may be made regarding fungus troubles. Probably the danger of bringing pests from the Orient is even greater. The organization of research along international lines should be on a broad basis, for as pointed out by Shear6 the pathological conditions differ greatly and the climatic factors are of great importance. Diseases that are of little consequence in Europe may be serious in America, and vice versa. An interchange of visits between European and American workers would throw these points into bolder relief, but a further step is highly to be desired, namely, the formation of an International Committee on Phytopathology, for the purpose of securing closer relationships between the scientific workers in the1 several countries and to promote research along lines of international interest. Such a committee might stimulate the organization of Plant Disease Survey agencies in each country, to record the geographic distribution of the diseases of plants and their annual prevalence. Reports on the losses caused would enable the economic importance of the subject to be better understood. Epidemic outbreaks should be studied in relation to the weather, crop distribution, and other factors. Data should be gathered bearing on the problems of parasitism, especially in its relation to the adaptation of plants to their environment and the disease resistance or susceptibility of varieties. The coordination of meteorological data should be sought for, so that di...