The double low vari ety used backcross male parent for double high GMS, the double low GMS had been bred through continuous backcross, at the same time, the double low hybrid has be en bred.是什么意思_The double low vari ety used backcross male parent for double high GMS, the double low GMS had been bred through continuous backcross, at the same time, the double low hybrid has be en bred.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句