两种紫花苜蓿品种光合特性的研究

›› 2008, Vol. 10 ›› Issue (3): 102-106.

两种紫花苜蓿品种光合特性的研究

徐丽君1,2,王波3,玉柱4,孙启忠2

(1.中国农业科学院研究生院, 北京 100081； 2.中国农业科学院草原研究所, 呼和浩特 010010；
3.北京林业大学水土保持学院, 北京 100083|4.中国农业大学草地研究所, 北京 100094)

收稿日期:2007-12-19 修回日期:2008-01-31 出版日期:2008-06-15 发布日期:2009-07-29
通讯作者: 孙启忠,研究员 ,主要从事牧草生产与草地改良技术研究。Tel：0471-4926909；E-mail：sunqz@126.com
作者简介:徐丽君,博士研究生,主要从事草地生态与草地改良技术研究。Tel：0471-4926876；E-mail：xulijun_nmg@163.com。
基金资助:
国家“十一五”科技支撑项目（2006BAD16B03）和（2006BA04A04）,公益性行业（农业）科研专项经费项目（nyhyzx07-022）和948项目（2006-G38）资助。

Studies on the Photosynthesis Characteristics
of two Alfalfa Varieties

XU Li-jun1,2| WANG Bo3, YU Zhu4, SUN Qi-zhong2

(1.Graduate School, Chinese Academy of Agricultural Sciences, Beijing 100081|2.Grassland Research Institute,
CAAS, Hohhot 010010；3.School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083|
4.Institute of Grassland Science, China Agricultural University, Beijing |100094, China)

Received:2007-12-19 Revised:2008-01-31 Online:2008-06-15 Published:2009-07-29

摘要/Abstract

摘要：

对金皇后和敖汉苜蓿两种苜蓿的株高、草产量及净光合速率等因素进行相关分析,结果表明：不同生长年限敖汉苜蓿的植株高度高于金皇后,但

产草量低于金皇后；有效光辐射极显著影响两种苜蓿的净光合速率。空气湿度、空气温度和胞间二氧化碳浓度与净光合速率呈显著负相关。

关键词: 紫花苜蓿；产草量；光合速率；有效光辐射

Abstract:

The correlation of plant height, yield,net photosynthesis (Pn) and other factors of Golden Empress and Aohan were analyzed.

The results showed that the plant height of Aohan was higher than that of Golden Empress. However, its yield was lower than

that of Golden Empress. The PAR could influence net Pn of both varieties significantly. The air humidity, air temperature

and intercellular carbon dioxide concentration were was negatively correlated with netPn.

Key words: Medicago sativa, yield； Pn, PAR

中图分类号:

S551+.7

徐丽君1,2,王波3,玉柱4,孙启忠2. 两种紫花苜蓿品种光合特性的研究[J]. , 2008, 10(3): 102-106.

XU Li-jun1,2| WANG Bo3, YU Zhu4, SUN Qi-zhong2 . Studies on the Photosynthesis Characteristics
of two Alfalfa Varieties[J]. , 2008, 10(3): 102-106.