ISHS Acta Horticulturae 409: IV International Symposium on Growing Temperate Zone Fruits in the Tropics and in the Subtropics
FUNGICIDAL INHIBITION AND GROWTH REGULATOR PROMOTION OF POLLEN GERMINATION AND GERM-TUBE ELONGATION IN APPLE |
| Authors: | Ahmed A. Elezaby, Gamal M. Hasseeb |
| Abstract:
Five fungicides (Anvil, Avogan, Bayleton, Rubigan, and Sulfur at commercially recommended concentrations), four growth regulators (IAA, Phymon, Progeb, and Promalin at various concentrations) and combinations were evaluated for their effects on pollen germination of three apple cultivars (Anna, Dorsett Golden, and Bericher). All fungicides reduced the percentage of pollen germination and length of germ-tube elongation, regardless of cultivar. The positive effects perceived for growth regulators on pollen germination percentage and germ-tube elongation were variable and dependent on cultivar and material concentration. | |
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