论文部分内容阅读
稻穗的发育过程根据我们的观察结果简述如下:营养时期的茎生长点呈半圆球状,到分化前形态上并无显著改变,没有像麦类作物有显著伸长期;生长点开始变化时就有枝穗原基分化,这变化是迅速的。枝穗原基中以中央的枝穗发育最快,其顶端最先出现小穗原基。小穗原基的分化是向顶的。最先分化的是副颖及颖片,其次是外稃内稃以至花药,浆片,子房,花丝,花柱及柱头。
According to our observations, the developmental process of rice panicle is summarized as follows: The stem growth point of the vegetative period was semi-spherical, and there was no significant change in morphology before differentiation. There was no significant elongation of the wheat crop; when the growth point started to change There are branch primordia differentiation, this change is rapid. Spike primordia in the central branch spike fastest development, the top of the spike primordium first appeared. Spikelet primordial differentiation to the top. The first differentiation is a pair of Ying and glume, followed by the infallope inflorescence and anther, pulp, ovary, filigree, style and stigma.