| 摘要: |
| 通过大田栽培试验,探讨生育后期不同遮荫处理(遮荫率0、30%、50%和70%)对罗汉果净光合速率和罗汉果品质的影响。经过遮荫处理,罗汉果净光合速率日变化曲线由对照组(遮荫率为0)的双峰型转变为单峰型,曲线峰值出现在中午12:00时。遮荫率50%处理的曲线峰值、罗汉果苷Ⅴ含量和干果重比其它遮荫处理和对照组的高。结果表明,在桂南种植的罗汉果,生育后期给予遮荫率50%的处理对增加罗汉果的净光合速率,提高罗汉果苷Ⅴ含量和干果重较为有利。 |
| 关键词: 罗汉果 遮荫 净光合速率 桂南 罗汉果苷Ⅴ |
| DOI：10.3969/j.issn.1000-3142.2013.06.019 |
| 分类号:S567.239 |
| Fund project: |
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| Influence of shading on net photosynthetic rate and quality of Siraitia grosvenorii cultivated in south Guangxi |
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ZHAI Yong-Jin1, MA Xiao-Jun1,2*, MO Chang-Ming1
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1. Guangxi Botanical Garden of Medicinal Plant, Nanning 530023, China;2. Institute of Medicinal Plant
Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China
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| Abstract: |
| Different shading treatments(shading rate 0,30%,50% and 70%)were used to study the influence on net photosynthetic rate and quality of Siraitia grosvenorii at the late growth stage through the field conditions. The diurnal variation of net photosynthetic rate varied from a bimodal curve under control group(shading rate 0)to a unimodal one under shading condition and curve peak value appeared at 12:00 noon. Curve peak value,the content of mogroside Ⅴ and dried fruit weight under the treatment of 50% shading rate were higher than those under the treatments of other shading rates.The results showed that at the late growth stage of S. grosvenorii cultivated in south Guangxi,the treatment of 50% shading rate increased net photosynthetic rate,and it was good for dried fruit weight and improving the content of mogroside Ⅴ. |
| Key words: Siraitia grosvenorii shading net photosynthetic rate south Guangxi mogroside Ⅴ |
