【摘要】 <正> 本文为玉米叶片结构研究第二报。从作物的生理机能角度出发探求形态及解剖组织结构方面的问题一直是人们较为关心的课题。六十年代中期C₄光合途径的阐明为这一研究开辟了广阔的前景。到目前为止有关作物的形态结构问题特别是叶片的结构方面的研究已远非昔日仅限于植物学意义的描述,而无论从深度还是广度上都显示着结构与功能关系的统一。更多还原

【Abstract】 This paper is the second report on the anatomical structure of corn lear.(?) results showed that the valuse of leaf thickness, mesophyll thickness, total numbers (?) vasculars of leaf blade, transection area of phleom and xylem in the middle leave we(?) higher than those in the upper and lower ones respectively; the leaves at different (?) tions exhibited the typical Kranz structure, but the leaf sheath and husk leaf did not Otherwise, the cuticling of leaves, the thickening of vascular bundle sheath cell walls in the first and second degree bundles and the dramatical increase of lignified vessel percentage all took place above the 5-6th leaf. These changes showed the special(?) of the leaf structure towards the direction of increasing function.更多还原