摘要
研究了玉米-花生间作对玉米、花生经济产量及功能叶片光合作用光响应的影响.结果表明:间作体系总体表现出明显的产量优势,2004和2005年分别为2896和2894kg.hm-2,土地利用率提高了14%～17%;玉米-花生间作提高了玉米功能叶片的光饱和点、光补偿点和强光时的光合速率,降低了花生功能叶片的光补偿点和光饱和点,但提高了花生表观量子效率和弱光时的光合速率.表明间作提高了玉米对强光和花生对弱光的利用能力,从而使间作体系表现出明显的产量优势.
A field experiment was conducted to study the effects of maize-peanut intercropping on the economic yield of the two crops and the light response of their functional leaves＇ photosynthesis. The results showed that maize-peanut intercropping had an obvious yield advantage, with the total economic yield being 2 896 kg · hm^-2 in 2004 and 2 894 kg· hm^-2 in 2005, and enhanced the land utilization rate by 14%-17%. For maize＇s functional leaves, the intercropping enhanced their light saturation point, compensation point, and photosynthetic rate under strong light; while for peanut＇ s functional leaves, it reduced their light saturation point and compensation point but enhanced the apparent quantum yield of photosynthesis and photosynthetic rate under weak light, indicating that maize-peanut intercropping enhanced the utilization efficiency of strong light by maize and that of weak light by peanut, making this intercropping system present an obvious yield advantage.
出处
《应用生态学报》
CAS
CSCD
北大核心
2008年第5期981-985,共5页
Chinese Journal of Applied Ecology
基金
河南科技大学人才科研启动基金项目(06014)
河南科技大学青年基金项目(2007QN027)
中国博士后科学基金资助项目(20070420430)
关键词
玉米
花生
间作
产量
光合作用光响应
maize
peanut
intercropping
yield
response of photosynthesis to light.
