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Effects of exogenous ABA and GA3 on sugar concentration in flesh of cara cara navel orange



Effects of exogenous ABA and GA3 on sugar concentration in flesh of cara cara navel orange



Ying Yong Sheng Tai Xue Bao 18(11): 2451-2455



The concentration of glucose, fructose, sucrose and total sugar were determined after exogenous ABA and GA3 treatment during young period of fruit and before fruit coloring in flesh of Cara Cara Navel Orange. The results showed that 10 mg x L(-1) ABA treatment improved glucose, fructose and total sugar concentration significantly or very significantly, 50 mg x L(-1) ABA treatment improved sucrose concentration very significantly, but 100 mg x L(-1) ABA treatment reduced glucose concentration very significantly. GA3 treatment of lower and middle concentrations (10, 50 and 250 mg x L(-1)) improved sucrose concentration very significantly, 10 mg x L(-1) GA3 treatment had no remarkable effect on glucose and fructose concentration but improved total sugar concentration very significantly, GA3 treatment of 50, 250 and 500 mg x L(-1) decreased glucose, fructose and total sugar concentration very significantly. Therefore, ABA treatment of lower concentration could improve one or several kinds of sugar concentration, but GA3 treatment of higher concentration (250 and 500 mg x L(-1)) prohibited sugar accumulation in flesh of Cara Cara Navel Orange seriously.

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Accession: 052866292

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PMID: 18260446


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