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。
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。
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。
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