The fertility of pollen, the contents of protein, DNA and RNA, the activities of protease, DNase and RNase in the panicles of maintainer in hybrid rice decreased when the maintainer was treated with ACC or ethrel.是什么意思_The fertility of pollen, the contents of protein, DNA and RNA, the activities of protease, DNase and RNase in the panicles of maintainer in hybrid rice decreased when the maintainer was treated with ACC or ethrel.在线翻译_英语_读音_用法_例句