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利用Minicuvette-CO_2和H_2O分析系统对大豆全生育期间植株叶片主要生理作用变化进行了活体、同步跟踪测定及25个品种间的同步比较测定,并用数理分析方法剖析了叶片光合、蒸腾、呼吸及叶导性间的相关性。结果表明,除单叶生长期光合与呼吸间呈极显著线性负相关外,光合、蒸腾、叶导性及呼吸间,无论在单叶全生长、衰老过程中或植株全生育过程中,均呈显著或极显著线性正相关;除单叶旺盛功能期光合与叶导性间的偏相关系数不显著外,光合、蒸腾和叶导性间,以及光合与呼吸间还存在着显著或极显著二级偏正相关;这类生理作用间所表现出的相关性是具有遗传基础的。
The changes of main physiological functions of plant leaves during the whole growth period of soybean were determined in vivo and synchronously with Minicuvette-CO_2 and H_2O analysis system, and the synchronization between 25 varieties was determined. The photosynthesis, transpiration, respiration and leaf of the leaves were analyzed by mathematical analysis The correlation between the conductivity. The results showed that photosynthesis, transpiration, leaf conductance and respiration, except during single leaf full growth, senescence or full plant growth, all showed a significant linear negative correlation between photosynthesis and respiration Significant or extremely significant linear positive correlation; Except single partial leaf exuberant functional phase of photosynthesis and leaf conductivity between the partial correlation coefficient is not significant, photosynthetic, transpiration and leaf conductivity, and between photosynthesis and respiration there is significant or extremely significant Level positive correlation; the correlation shown by these physiological roles is genetically based.