| 不同施肥条件下夏玉米光合对生理生态因子的响应 |
| |
| 引用本文： | 李潮海,刘奎,周苏玫,栾丽敏. 不同施肥条件下夏玉米光合对生理生态因子的响应[J]. 作物学报, 2002, 28(2): 265-269 |
| |
| 作者姓名： | 李潮海 刘奎 周苏玫 栾丽敏 |
| |
| 作者单位： | 河南农业大学农学院,河南郑州,450002 |
| |
| 基金项目： | 河南省“九五”重点科技攻关项目“夏玉米综合增产技术研究”(960 2 0 10 19)部分研究内容 |
| |
| 摘 要： | 不同施肥水平下夏玉米光合对生理、生态因子的响应研究表明,施肥可以改善叶肉细胞的光合能力,使阻碍光合速率进一步提高的因素由非气孔限制逐渐转变为气孔限制,并可提高生育后期叶片的光合强度,延长高光合持续期,在日变化中表现为增加了叶片下午的光合强度.大田条件下,光合有效辐射(PAR)和气孔导度(S.)是影响光合速率(Pn)最主
|
| 关 键 词： | 施肥 光合强度 气孔导度 蒸腾速率 通径分析 |
| 收稿时间： | 2000-10-19 |
| 修稿时间： | 2000-10-19 |
Response of Photosynthesis to Eco-physiological Factors of Summer Maize on Different Fertilizer Amounts |
| |
| LI Chao Hai LIU Kui ZHOU Shu Mei LUAN Li Min. Response of Photosynthesis to Eco-physiological Factors of Summer Maize on Different Fertilizer Amounts[J]. Acta Agronomica Sinica, 2002, 28(2): 265-269 |
| |
| Authors: | LI Chao Hai LIU Kui ZHOU Shu Mei LUAN Li Min |
| |
| Abstract: | Fertilizer Application improved the photosynthetic ability of summer maize mesophyll cell, which made the limiting factor of photosynthetic rate from nonstomatal limitation to stomatal limitation gradually, enhanced photosynthetic rate in the post stage, prolonged the high photosynthesis period, and raised photosynthetic ability in the afternoon. In the field grown condition, the main eco physiological factors affecting photosynthetic rate (P n) were photogynthetic activity radiation (PAR) and stomatal conductance (S c), which had positively direct effects on photosynthesis. PAR and transpiration rate (T r) were eco physiological factors significantly correlated with P n. |
| |
| Keywords: | Fertilizer Photosynthetic rate Stomatal conductance Transpiration rate Path analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《作物学报》浏览原始摘要信息 |
|
点击此处可从《作物学报》下载全文 |
|
