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Predisposition of Aster to Phialophora wilt
Author(s) -
BURGE M. N.,
ISAAC I.
Publication year - 1977
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.1744-7348.1977.tb01849.x
Subject(s) - biology , inoculation , nutrient , advanced spaceborne thermal emission and reflection radiometer , phosphorus , potassium , agronomy , horticulture , moisture , botany , ecology , chemistry , remote sensing , digital elevation model , geology , organic chemistry
SUMMARY The susceptibility of Aster novi‐belgii to infection by the vascular wilt pathogen Phialophora asteris varied according to the growing conditions to which the host was subjected before inoculation. Relatively low air temperature, high soil moisture, and soil nutrients rich in potassium or phosphorus were pre‐inoculation conditions in which Aster became relatively susceptible. Increased resistance was favoured by growing plants at relatively high air temperatures, low soil moisture, and soil nutrients rich in nitrogen or calcium but low in potassium or phosphorus prior to inoculation.