Role of Wound Ethylene in Fruit Set of Hand-pollinated Muskmelons1

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Abstract
Application of a lanolin paste containing the aminoethoxy analog of rhizobitoxine, aminoethoxyvinylglycine (AVG), to the base of perfect flowers improved fruit set in emasculated, hand-pollinated flowers of muskmelon (Cucumis melo L.). Applications of indoleacetic acid (IAA) improved fruit set slightly, but reduced seed yields. Combinations of IAA and AVG were more effective than IAA alone, but were less effective than AVG alone at the optimum dosage. AVG prevented would ethylene production by excised, hand-pollinated flowers. The results support the contention that would ethylene production by emasculated, hand-pollinated flowers is an important factor in lowering fruit set.

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