Apple varieties like 'SweeTango' or 'Evercrisp', exhibit an increase in flower produced ethylene between flowering and 10 mm fruit size, which causes excessive flower or fruit drop. Experiments with both varieties showed that double applications of AVG (ReTain) during full bloom and petal fall increased fruit set.
English
633 - Field crops and their production
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New York State Horticultural Society
Fruit Quarterly, 2025, 33, 3, 12-16