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The development of Botrytis cinerea on cut flowers of carnation
Author(s) -
EDNEY K. L.
Publication year - 1967
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.1744-7348.1967.tb04489.x
Subject(s) - carnation , petal , botrytis cinerea , biology , conidium , inoculation , horticulture , ethylene , botrytis , germination , incubation , botany , biochemistry , catalysis
SUMMARY Enclosing carnation blooms in polythene increased rotting associated with naturally occurring Botrytis infections and accelerated the rate of conidia development when flowers were artificially inoculated before being stored at 1·7 °C. Petal infections were observed 16 and 48 h after inoculation and incubation at 18·3 and 1·7 °C respectively. The products of exosmosis from petals kept at 18·3 °C for 7 days stimulated germination of B. cinerea conidia. Slight pectic enzyme activity was detected in a liquid medium, derived from carnation petals, after incubating B. cinerea cultures at 18·3 °C for 6 days. Although cultures of Botrytis evolved virtually no ethylene, the surge of ethylene produced by uncontaminated ageing flowers occurred sooner after inoculation. A spray containing 1·2% a.i. of 2‐aminobutane controlled rotting but damaged flowers.