Through ultra-structure observation, it is found that the microspore of Jin A began to abort at the stage of sporogenous cell division.
小孢子发育的超微结构观察发现，晋A不育系在造孢细胞增殖时期即表现出败育迹象。
Natural crossing and boll setting of a nucleo-cytoplasmic sterile line of cotton Jin-A were studied.
研究了晋A棉花质核不育系的天然异交与成铃。
Jin, a customs passage into the "Red channel" and the "green channel" two.
进、出海关的通道分为“红色通道”和“绿色通道”两种。
Jin, a customs passage into the "Red channel" and the "green channel" two.
进、出海关的通道分为“红色通道”和“绿色通道”两种。
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