前言通过改良作物的光合性状,改善群体冠层对光能的接受和利用,提高光合效率,改进光合产物的有利分配,无疑可进一步提高作物品种的增产潜力。为达上述目的而开展的作物理想型育种已越来越引起人们的重视。因此,研究光合性状对产量形成的影响;探讨光合性状的遗传行为和基因作用形式;对于作物高产育种具有重要的理论和实际意义。 Preface It is undoubtedly possible to further increase the yield potential of crop varieties by improving the photosynthetic characteristics of crops, improving the acceptance and utilization of light energy by the canopy, increasing photosynthetic efficiency and improving the favorable distribution of photosynthetic products. The ideal crop breeding for this purpose has drawn more and more attention. Therefore, it is of great theoretical and practical significance to study the effects of photosynthetic traits on the yield formation; to explore the genetic behavior of photosynthetic traits and gene action forms;