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《》 1987-01
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CHANGES OF ENDOGENOUS ABSCISIC ACID CONTENT AND ETHYLENE EVOLUTION DURING RIPENING OF APPLE FRUITS

Li Jie-fen;Tan Zhi-yi;Zhang Chun-hao;Yuan Yu-xin;Wang Wen-hong Department of Biology,Beijing Normal.University The Chinese Academy of Agriculture Mechanization of Science  
Apple fruits of three cultivars Were used for study. Changes of respirationrate, ethylene evolution and ABA content were determined by gas chromatograph.with the same samples. The level of ABA in flseh of Delicious apples started toincrease just before the rise of ethylene evolution and reached a maxium at 12~14th day after harvest and then declined rapidly. When ethylene evolution reachedthe peak at 15th day of storage the ABA content in flesh adjacent to core had beendecreasing to 25% of its peak value. Trend of changes in ABA And ethylene ofWhite Winter Pearmain apples was. similar to that of Delicious apples, but the inter-val reaching to the peak was a little longer in the former. The storable Ralls applesrequired a longer period to reach the peak of ABA and ethylene, and the level ofABA in Ralls apples was lower than that of the other two cultivars.
【Fund】: 中国科学院基金
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