| Effects of light intensity on sugar accumulation of melon fruits |
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| DOI：10.7606/j.issn.1000-7601.2012.01.29 |
| Key Words: Cucumis melo cultivar light intensity sugar accumulation |
| Author Name | Affiliation | | CHEN Nianlai | Gansu Provincial Key Laboratory of Dryland Crops, Lnazhou 730070, China | | AN Cuixiang | Northwest Normal University 730070, China | | FANG Chunyuan | Gansu Provincial Key Laboratory of Dryland Crops, Lnazhou 730070, China | | ZHANG Yuxin | Gansu Provincial Key Laboratory of Dryland Crops, Lnazhou 730070, China
Institute of Vegetables, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China | | YANG Shimei | Gansu Provincial Key Laboratory of Dryland Crops, Lnazhou 730070, China |
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| Abstract: |
| Three cultivars of Cucumis melo L. were used to study the effects of light density on sugar accumulation of melon fruits. The results indicated that the glucose and fructose of melon increased quickly at early stages of fruit development, while sucrose rapid accumulation took place at later stage. When maturing, the sugar content of Yujinxiang (136.63 mg/g) was significantly higher than that of Yindi (119.9 mg/g), and that in Yindi was clearly higher than that in Huanghemi (108.14 mg/g). The sugar contents at different fruit points in ripen melon was blossom end＞central flesh＞stem end. Under shading conditions, the soluble sugars (mainly sucrose) accumulated in melon fruits decreased and the rapid accumulation of sucrose was delayed, whlie the accumulation mode of fruit sugar was not significantly affected. The sugar content reduction in large fruited cv. Huanghemi was higher than those in middle fruited cv. Yindi and small fruited cv.Yujinxiang. These results imply that the sugar conten
t of melon fruits depends on the supply level of assimilation. |
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