| 库尔勒香梨3种树形光合特性的比较 |
| |
| 引用本文： | 梅闯,罗淑萍,徐敏,杨文英,李疆,张强.库尔勒香梨3种树形光合特性的比较[J].新疆农业大学学报,2011,34(2):115-118. |
| |
| 作者姓名： | 梅闯 罗淑萍 徐敏 杨文英 李疆 张强 |
| |
| 作者单位： | 1. 新疆农业大学林学与园艺学院,乌鲁木齐,830052
2. 新疆农业大学农学院,乌鲁木齐,830052 |
| |
| 基金项目： | 国家林业公益性行业科研专项，新疆维吾尔自治区果树学重点学科基金，国家果树瓜类改良中心新疆香梨分中心建设项目 |
| |
| 摘 要： | 利用CB-1102便携式光合蒸腾仪,对库尔勒香梨3种树形的光合生理特性进行了比较研究。结果表明,在晴天条件下3种树形的净光合值差异较大,开心形和疏散分层形为典型的不对称双峰型变化曲线,峰值均在12：30和17：30左右,并伴有＂光合午休＂现象;3种树形的蒸腾速率变化均和净光合呈正相关,在光合作用日进程中,蒸腾速率的下降变化主要受当地空气温度的影响;香梨气孔导度值以开心形最高;3种树形的胞间CO2浓度与净光合速率均呈负相关;综合净光合速率、蒸腾速率等参数指标可以看出,开心形和疏散分层形的光合性能较强;由于相对光照分布与树冠的相应层次呈显著正相关,所以在同种树形不同冠层上的光合能力以上层叶片最高。
|
| 关 键 词： | 库尔勒香梨 光合特性 树形 |
Comparison of Photosynthetic Characteristics in Different Tree Shapes of Korla Fragrant Pear |
| |
| MEI Chuang,LUO Shu-ping,XU Min,YANG Wen-ying,LI Jiang,ZHANG Qiang.Comparison of Photosynthetic Characteristics in Different Tree Shapes of Korla Fragrant Pear[J].Journal of Xinjiang Agricultural University,2011,34(2):115-118. |
| |
| Authors: | MEI Chuang LUO Shu-ping XU Min YANG Wen-ying LI Jiang ZHANG Qiang |
| |
| Institution: | MEI Chuang1,LUO Shu-ping2,XU Min1,YANG Wen-ying1,LI Jiang1,ZHANG Qiang2(1.College of Forestry & Horticulture,Xinjiang Agricultural University,Urumqi 830052,China,2.College of Agriculture,China) |
| |
| Abstract: | In this paper the comparative research was carried out on photosynthetic and phisiological characteristics of 3 tree shapes of Korla Fragrant Pear with CB-1102 portable photosynthesis transpirometer.The result indicated that there is a significant difference of the net photosynthetic rate between the three tree shapes of Korla Fragrant Pear on a clear day,its value in both open-center shape and delayed-open central leader shape was a typical bimodal curve pattern,the peak value appeared in about 12:30 o'clo... |
| |
| Keywords: | Korla Fragrant Pear photosynthetic characteristics tree shape |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
