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Nutrient status of apple blossoms and their susceptibility to fire blight
Author(s) -
ALDWINCKLE H. S.,
BEER S. V.
Publication year - 1976
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.1744-7348.1976.tb01685.x
Subject(s) - biology , fire blight , erwinia , blight , rosaceae , nutrient , inoculation , malus , horticulture , botany , fruit tree , bacteria , ecology , genetics
SUMMARY Blossoms of Malus sylvestris cv. Golden Delicious trees on M. 7 root‐stocks, maintained under various N‐P‐K nutrient regimes in sand culture in the glasshouse, were inoculated with Erwinia amyhvora, the incitant of fire blight. Widest differences between nutrient treatments occurred when about ten E. amylovora cells were applied to each blossom. Trees with high N and high P contents had most infections. Trees with lower P content were less susceptible. Of trees with low P content, those with higher K appeared more susceptible.