Effects of Post-Bloom Alar Sprays on 'Spigold' Apples
DOI:
https://doi.org/10.71318/apom.1982.36.1.18Abstract
Eleven-year-old Spigold apple trees were sprayed with either 0, 500, 1000 or 2000 ppm alar (SADH) (daminozide) (butanedioic acid mono-(2,2-dimethylhydrazide) three weeks after full bloom. No change in fruit let abscission during July and August was detected. Typical ribbing of fruits was not reduced. Preharvest fruit drop was almost eliminated by all daminozide treatments. Red skin color was significantly greater and flesh color slightly more yellow on daminozide-treated fruit. No differences in fruit firmness or skin punctures were detected, but harvest bruising was slightly less on daminozide-treated fruit.
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