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Indicator Analysis of Off-season Longan Flower Reversal
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作者 Ziqin YANG Lei ZHANG +1 位作者 Jiwang HONG Songgang LI 《Agricultural Biotechnology》 CAS 2018年第5期16-19,22,共5页
[Objectives] This study was conducted to analyze the internal causes of flower reversal in Longan ( Dimocarpus longan Lour.) trees. [Methods] With flowering trees and flower reversal trees as experimental materials,... [Objectives] This study was conducted to analyze the internal causes of flower reversal in Longan ( Dimocarpus longan Lour.) trees. [Methods] With flowering trees and flower reversal trees as experimental materials, the variations in sugar and starch in mature leaves, tender leaves, mature branches, twigs and terminal buds after flower forcing were analyzed. [Results] During flowering process, sugar content showed the greatest difference between flowering and flower reversal trees, and the difference was the greatest in mature leaves. Trees with mature leaves having a sugar content above 44.71 mg/g were found to be more prone to flowering, while those with leaf sugar content lower than 27.80 mg/g were susceptible to flower reversal. In addition, longan trees with a higher sugar content in tender leaves were not prone to flower reversal. [Conclusions] In future, whether off-season flower forcing can be performed on longan trees could be judged through the detection of tree leaves, which is of great significance to prevention of flower reversal in off-season longan production. 展开更多
关键词 Dimocarpus longan Flower induction flower reversal STARCH SUGAR
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