玉米花生间作对产量和光光响应的影响
首发时间:2007-04-27
摘要:本实验主要研究了玉米花生间作对玉米籽粒产量和花生产量及对其功能叶片光-光响应的影响,结果表明:玉米花生间作虽极显著降低了玉米籽粒产量和花生果仁的产量,但间作体系却表现出明显的间作产量优势,2004年和2005年分别为2896kg•hm-2和2894 kg•hm-2,土地利用率提高了14%~17%;玉米花生间作提高了玉米光饱和点、光补偿点和强光时的光合速率,降低了花生的光补偿点、光饱和点,却提高了花生表观量子效率和弱光时的光合速率。这进一步表明,间作提高了玉米对强光和花生对弱光的利用能力。
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Effect of Maize Intercropped with Peanut on Yield and Response of Photosynthesis to Light
Abstract:The experiment was conducted to investigate the effects of maize intercropped with peanut on yield and response of photosynthesis to light. Results showed that although intercropping significantly reduced both crops’ individual yield, the intercropping advantage was obvious, which were 2896kg•hm-2 in 2004 and 2894 kg•hm-2 in 2005, respectively, and soil utilization ratio was enhanced by 14%~17% ; maize intercropped with peanut enhanced the light saturation point, light compensation point and photosynthetic rate at strong light of maize, and reduced the light saturation point, light compensation point, apparent quantum yield of photosynthesis of peanut, while, enhanced the apparent quantum yield of photosynthesis and photosynthetic rate at weak light of maize.
Keywords: Maize;Peanut;Intercropping;Yield;Response of Photosynthesis to Light
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