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KMID : 0903619970380030238
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Journal of the Korean Society for Horticultural Science
1997 Volume.38 No. 3 p.238 ~ p.241
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Inhibition of Early Drop by Girdling , GA Paste and AVG in ´ Sekaiichi ´ Apple Fruits
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Abstract
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To inhibit early fruit drop, branch girdling, GA paste application on fruit stalk and aminoethoxyvinylglycine (AVG) spray on leaves and fruits were performed in 5- and 9-year-old ´Sekaiichi´/M26 apple trees. Branch girdling 1 week after full bloom (AFB) and GA paste application 2 and 3 weeks AFB greatly inhibited early fruit drop and accelerated young fruit growth. AVG spray also inhibited early fruit drop, but it seemed to inhibit young fruit growth slightly. Treatment 2 weeks AFB was more effective in drop inhibition compared to 3 weeks AFB treatment. The number of seeds per fruit was more reduced in GA paste treated fruits compared to AVG and girdling treated fruits.
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KEYWORD
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