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Factors influencing infection of the tomato by Verticillium albo‐atrum
Author(s) -
Roberts F. M.
Publication year - 1943
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1943.tb06710.x
Subject(s) - verticillium , biology , verticillium wilt , inoculation , steaming , potash , agronomy , horticulture , fertilizer , food science
Infection of tomato plants by Verticillium albo‐atrum was encouraged by application of nitrogenous manures. Application of phosphate had no significant effect on the progress of the disease, but a deficiency of potash tended to encourage it. Steam‐sterilized soil inoculated with Verticillium immediately after treatment produced a very high total of infected plants. When inoculation of the steamed soil by Verticillium was delayed for 17 days or longer after steaming, the steamed soil was no more favourable for development of the disease than untreated soil. Spread of Verticillium from the roots of an infected plant to those of neighbouring healthy plants was hastened by killing the infected plant.