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KMID : 0903620000410040392
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Journal of the Korean Society for Horticultural Science
2000 Volume.41 No. 4 p.392 ~ p.394
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Effects of Application Time of GA Paste and Promalin on Composition and Content of Free Sugars in Pear Fruits
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김영호/Kim, Young Ho
임상철/이철희/최관순/김선규/김학현/윤철구/Lim, Sang Cheol/Lee, Cheol Hee/Choi, Kwan Soon/Kim, Seon Kyu/Kim, Hag Hyun/Youn, Cheol Ku
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Abstract
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Effects of application time of GA_(4+7) paste (GA paste) and Promalin on composition and content of free sugars of ´Kamcheonbae´ and ´Whangkuembae´ pear fruits were studied. Major free sugars of two cultivars were fructose followed by glucose and sucrose. GA paste increased glucose in ´Kamcheonbae´. Fructose and glucose content of ´Whangkuembae´ was increased by early GA paste application, while late application increased the sucrose content. Application time of Promalin affected the sugar content of ´Kamcheonbae´, showing low fructose content and high sucrose content as application time was delayed. Fructose and sucrose content in ´Whangkuembae´ was significantly high when Promalin was applied 25 and 35 days after full bloom (DAFB), respectively. The general tendency of reduction in % fructose and increase in % glucose was observed except for application of Promalin 25 DAFB.
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