But after the abortion, the development of ZS97A pollen was impaired and the elongation rate decreased, leading to panicle enclosure by shortening the uppermost internode (UI) length.
而伴随着花粉发育受阻至花粉败育之后，ZS97A的节间伸长速率下降，最终导致倒一节间缩短而引起包穗。
GA_3 had promoting effect to the elongation ofpanicles extension, uppermost internode, the second internode. and the length of stem.
GA_3对穗颈伸出长度、第一节间长度、第二节间长度和茎长有明显的促进作用，表现为随着浓度的增加的趋势。
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