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为了进一步探索玉米的生物学性状,以便为玉米的高产栽培提供依据,我们于1977—1980年,连续四年对玉米可见叶与展开叶的相关生长,以及同雌雄穗发育的相关性作了较为系统的观察。观察结果说明,玉米一生中可见叶与展开叶的相关生长有明显的差数性变化规律;而各差数期与雌雄穗发育进程也存在一定的相关性。因此,根据“见展叶差”的不同差数期来判断内部雌雄穗的发育时期,进而可将不同差数期
In order to further explore the biological characteristics of maize in order to provide the basis for high-yielding cultivation of maize, we compared the correlation between the development of visible leaves and expanded leaves and the correlation with the development of the male and female maize in 1977-1980 for four consecutive years System observation. The observation results show that there is a significant difference in the correlation between the relative growth of visible leaf and expanded leaf in maize, and there is a certain correlation between the development of male and female in each difference period. Therefore, according to the “poor” to see the difference between the period to determine the development period of internal male and female, which can be different period