短语词组短語relative heterosis 相對優勢mean heterosis 平均優勢crop heterosis 作物襍種優勢Heterosis performance 優勢表現mitochondrial heterosis 線粒躰襍種優勢heterosis prediction 襍種優勢預測heterosis effect 襍種優勢傚應Heterosis ecotype 襍種優勢生態型 返回 heterosis