| 桃光合性能杂种优势的秋季日变化特征 |
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| 引用本文： | 张斌斌,姜卫兵,韩键,化香平,谢智华,马瑞娟.桃光合性能杂种优势的秋季日变化特征[J].中国生态农业学报,2011,19(1):82-86. |
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| 作者姓名： | 张斌斌 姜卫兵 韩键 化香平 谢智华 马瑞娟 |
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| 作者单位： | 1. 南京农业大学园艺学院,南京,210095
2. 江苏省农业科学院园艺研究所,南京,210014 |
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| 基金项目： | 江苏省科技基础设施建设计划项目(BM2008008)和国家科技支撑计划项目(2006BAD01A1702)资助 |
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| 摘 要： | 以桃品种“吊枝白”和“霞晖5 号”及其杂交F1 代种苗为试验材料, 研究了桃在秋季的光合性能杂种优势日变化特征。结果表明: 净光合速率(Pn)午间表现正向杂种优势, 蒸腾速率(Tr)和气孔导度(Gs)全天基本表现负向杂种优势, 而水分利用效率(WUE)则全天基本表现正向杂种优势。相关性分析表明, 杂交F1 代种苗的Pn 与Tr、Pn 与Gs、Tr 与Gs 均呈正相关, 其中Pn 与Tr 之间相关性达显著水平(P<0.05); 亲本的Pn 与Tr之间呈显著正相关(P<0.05), Gs 与Pn、WUE 之间呈显著正相关(P<0.05)。灰色关联度分析表明, 影响Pn、Tr和WUE 杂种优势率的主要因素均为大气CO2 浓度(Ca)。
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| 关 键 词： | 桃 杂种优势 光合性能 日变化 |
| 收稿时间： | 2010/3/31 0:00:00 |
| 修稿时间： | 2010/8/27 0:00:00 |
Diurnal variation characteristics of heterosis of peach photosynthetic performance in autumn |
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| ZHANG Bin-Bin,JIANG Wei-Bing,HAN Jian,HUA Xiang-Ping,XIE Zhi-Hua and MA Rui-Juan.Diurnal variation characteristics of heterosis of peach photosynthetic performance in autumn[J].Chinese Journal of Eco-Agriculture,2011,19(1):82-86. |
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| Authors: | ZHANG Bin-Bin JIANG Wei-Bing HAN Jian HUA Xiang-Ping XIE Zhi-Hua and MA Rui-Juan |
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| Institution: | College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China;College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China;College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China;College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China;College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China;Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China |
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| Abstract: | Diaozhibai, Xiahui 5 and their hybrid F1 seedlings were used to study diurnal variations in heterosis of photosynthetic performance in autumn. While the results showed positive heterosis of net photosynthetic rate (Pn) at noon and water use efficiency (WUE) for all day, that of transpiration rate (Tr) and stomatal conductance (Gs) was negative for all day. Positive correlations existed between Pn and Gs, and between Tr and Gs for hybrid F1, and the correlation between Pn and Tr was significantly positive at... |
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| Keywords: | Peach Heterosis Photosynthetic performance Diurnal variation |
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