open-pollinated 释义 自由传粉 天然授粉 例句 1·The effects of successive inbreeding progenies of Brassica napus L. on the embryo development were studied in comparison with the open -pollinated population and hybrids from inbred lines. 以自由授粉群体和品系间杂种为对照,研究了甘蓝型油菜连续自交后代在胚胎发育上表现的效应。
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