| 摘要: |
| 对广宁红花油茶、高州油茶以及普通油茶赣无-1、赣石84-3、粤韶76-1和岑软3号共6个油茶无性系进行多点连续测定，测定指标有表观量子效率、光饱和点、光补偿点、最大净光合速率和暗呼吸速率等。用叶子飘最新模型对数据进行拟合。结果表明：6个不同油茶无性系光响应曲线间存在差异。赣石84-3较耐荫蔽。赣无-1光饱和点相对较高，光补偿点较低，且有较高的最大光合速率，对光环境的适应性较强，对光环境的适应范围较广，具有较大光合潜力。 |
| 关键词: 油茶 无性系 光合特性 光响应曲线 |
| DOI： |
| 投稿时间：2012-11-13修订日期：2013-03-25 |
| 基金项目:广东省科技计划项目（2011B020302003），广东省林业科技创新专项（2011KJCX014-01) |
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| Study on Light Response of Serval Camellia Clones |
| Lin Wei,Huang Yongfang,Huang Yongtao |
| (College of Forestry,South China Agricultural University) |
| Abstract: |
| The photosynthesis characteristic of several clones of Camellia were studied in order to select species with high adaptability to light. The clones were following: C. semiserrata, C. gauchowensisand C. oleifera‘Cenruan 3’, C. oleifera ‘Ganwu-1’, C. oleifera ‘Ganshi 84-3’ and C. oleifera‘Yueshao 76-1’. Apparent quantum yield, Light saturation point (LSP), Light compensation point (LCP), the maximum photosynthetic rate (Pnmax) and the dark respiration rate (Rd) had been measured. These parameters were fixed by Ye′s model. The main results showed: the light response curves between six clones of three species had differences. C. oleifera‘Ganshi 84-3’ could be used as a low light tolerance variety. C. oleifera‘Ganwu1’ had a higher adaptability to light environment than others with its higher LSP and lower LCP, and also had higher Pnmax. C. oleifera Ganwu-1 had a greater photosynthetic potential.\ |
| Key words: Camellia clones photosynthesis characteristic light response curve |
