. Florists' review [microform]. Floriculture. ?/ •"'-' '-.'^ • V'^v, ''•^^' jr^^-^-ri-.^^- -f ':.fy^rTr:^^r-^:^^yil^'^ '7^'rT^^!TP?=J^(nF^H7^^ ^ 102 The Florists^ Review Jdly 27. 1922 tivation of the soil makes it well-nigh impossible to find an area not infected with bacteria, he declared that in this country- there are still extensive areas, not yet developed agriculturally, which might be protected from plant disease invasion. While admitting that soil in- festation is an important problem, he asserted that soil parasites were of more importance in the warmer latitudes where weat
. Florists' review [microform]. Floriculture. ?/ •"'-' '-.'^ • V'^v, ''•^^' jr^^-^-ri-.^^- -f ':.fy^rTr:^^r-^:^^yil^'^ '7^'rT^^!TP?=J^(nF^H7^^ ^ 102 The Florists^ Review Jdly 27. 1922 tivation of the soil makes it well-nigh impossible to find an area not infected with bacteria, he declared that in this country- there are still extensive areas, not yet developed agriculturally, which might be protected from plant disease invasion. While admitting that soil in- festation is an important problem, he asserted that soil parasites were of more importance in the warmer latitudes where weather conditions favor their perpetuation in the soil through the cold season. "Looking at the whole field from an unbiased standpoint," he said, "we must admit that soil-infesting parasites are of great importance in crop produc- tion, but we cannot overlook the fact that seed-borne diseases are more numer- ous than soil-infesting ones and, from the standpoint of disease dissemination, greatly overshadow the latter as poten- tial agents of destruction, particularly in new regions. Further than this, re- cent researches have shown that even these soil-infesting parasites may live from fall to spring on the seed and carry over the disease to the next crop. We appear to have no alternative hypothesis to account for the wide geographical dis- tribution of the diseases of those plants which are propagated by seed or fruit. Factors Importajit in Seed Production. "There is no need to discuss particu- larly the details of seed production, but I do wish to mention the important and fundamental principles which should be recognized in all plant and seed produc- tion work. In my enumeration of these factors there is nothing significant in the order as presented. These factors as 1 see them are: 1. Inherent resistance or immunity to disease. 2. Freedom from disease-producing organisms which are carried by the seed. 3. Vitality. 4. Quality. 5. Productiveness. 6. Ada
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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912
