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作 者 ：高辉远;陈敬锋;邹琦;程炳嵩

期 刊 ：作物学报 1994年 20卷 03期 页码：357-362

关键词：大豆；光合日变化；光合午休；气孔限制；非气孔限制；通径分析；

Keywords:Soybean, Diurnal variation of photosynthesis, Midday depression of photosynthesis, Stomatal limitation, Nonstomatal limitation, Path analysis,

摘 要 ：研究了大豆光合午休过程中有关生理生态因素与光合速率的函数关系，并对叶温、叶片-大气水汽压亏缺（VPD）、气孔导度与光合速率之间的关系进行了通径分析。结果表明在光合午休的13：00时与15：00时这两个时刻，光合速率与VPD、叶温和气孔阻力呈极显著负相关，15：00时光合速率随VPD和叶温上升而下降的速率要大于13：00时的下

Abstract:The relationship between related physiological and ecological factors and photosynthesis during midday depression of photosynthesis in soybean leaves were studied. The path analysis was also used to estimate the effects of Leaf temperature (TL), leaf to air vapour pressre deficient (VPD) and stomata

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