uppermost internode

基本解释

GA_3 had promoting effect to the elongation ofpanicles extension, uppermost internode, the second internode. and the length of stem.
GA_3對穗頸伸出長度、第一節間長度、第二節間長度和莖長有明顯的促進作用，表現爲隨著濃度的增加的趨勢。
It is evident that the uppermost internode shortening of Peiai64S is due to the decrease of cell number and the shortening of cell length, and the effect of later is more obvious.
培矮64S穗頸節間縮短是由細胞數目減少和細胞長度縮短雙重作用所致，其中後者作用更顯著。
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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.
而伴隨著花粉發育受阻至花粉敗育之後，ZS97A的節間伸長速率下降，最終導致倒一節間縮短而引起包穗。