LIU Hong-bo,BAI Yun-gang,ZHANG Jiang-Hui,et al.Response Characteristics of Photosynthetic Rate to Light Intensity and CO2 Concentration of Grape[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(07):77-80.[doi:10.11942/j.issn1002-2767.2015.07.0077]
葡萄光合速率对光及CO2浓度的响应特征
- Title:
- Response Characteristics of Photosynthetic Rate to Light Intensity and CO2 Concentration of Grape
- 文章编号:
- 1002-2767(2015)07-0077-04
- Keywords:
- grape; photosynthesis; response curve
- 分类号:
- S663.1
- 文献标志码:
- A
- 摘要:
- 为深入研究吐鲁番地区葡萄管理和节水灌溉技术,采用CIRAS3型便携式光合仪对新疆吐鲁番地区葡萄光合作用进行的测定。结果表明:当光合有效辐射在0~600 μmol?m-2?s-1时,净光合速率迅速上升;光合有效辐射在600~1 500 μmol?m-2?s-1时,净光合速率升幅减弱;而光强在1 500~2 000 μmol?m-2?s-1时,净光合速率随着光照强度的增加而出现下降。CO2浓度在800 μmol?m-2?s-1之前,光合速率迅速增加;在800 μmol?m-2?s-1之后,光合速率缓慢上升。利用非直角双曲线模型和直角双曲线模型拟合葡萄光响应曲线和CO2响应曲线,决定系数分别为0.996 2和0.988 5。
- Abstract:
- In order to study the management and watersaving irrigation technology for Turpan Grape,photosynthesis of grape was determined in Turpan area with CIRAS3 portable photosynthesis system.The results showed that when the photosynthetically active radiation in the range of 0~600 μmol?m-2?s-1,the net photosynthetic rate increased rapidly; in 600~1 500 μmol?m-2?s-1 the net photosynthetic rate;and in 1 500~2 000 μmol?m-2?s-1,the net photosynthetic rate increased with the photosynthetically active radiation decreased.The concentration of CO2 before 800 μmol?m-2?s-1,the photosynthetic rate increased rapidly; after 800 μmol?m-2?s-1,the photosynthetic rate increased slowly.Light response curve and CO2 response curve were fitted with the nonrectangular hyperbola model and the rectangular hyperbola model,the determination coefficient were 0.996 2 and 0.988 5.
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备注/Memo
收稿日期:2015-01-20基金项目:新疆自治区自然科学基金资助项目(2014211A050)第一作者简介:刘洪波(1982-),男,湖北省天门市人,硕士,工程师,从事水分高效利用研究。E-mail:lhb090@163.com。通讯作者:白云岗(1974- ),男,新疆维吾尔自治区奇台县人,高级工程师,从事农业水土工程方面的研究及技术推广工作。E-mail:xjbaiyg@yahoo.com.cn。