Abstract
The postharvest development of Botrytis blight in rose flowers ( Rosa × hybrida cv. Mercedes) was suppressed when flower buds were sprayed with 1 mM solution of gibberellic acid (GA 3 ). The development of the disease was promoted by application of abscisic acid (ABA) and the suppressive effect of GA 3 was reduced when GA 3 solution was supplemented with ABA. The GA 3 -imposed suppression of Botrytis blight was enhanced by addition of paclobutrazol (PBZ) to the GA 3 solution, but the development of the disease was not affected by PBZ alone. Germination of conidia and germ-tube elongation of Botrytis cinerea in vitro were unaffected by ABA and PBZ, whereas linear growth of fungal colonies was promoted by ABA but was inhibited by PBZ.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
