栽培稻的籼亚种和粳亚种,因亲缘关系较远,进行亚种间杂交具有较强的优势。目前利用籼粳杂交已育成了许多高产品种。因遗传和环境的影响交织,要使籼粳的优良性状较好地结合难度很大,后代也不易稳定。近年来关于遗传方面的研究做得较多,对生态环境的影响则研究较少。为此,我们观察了在不同生态环境条件下籼粳杂交后主要特 Rice cultivars indica subspecies and japonica subspecies, because of their genetic relationship, for cross-subspecies hybrid has a strong advantage. At present, many high-yielding varieties have been bred using indica-japonica hybridization. Due to the impact of genetic and environmental intertwined, it is very difficult for the fine traits of indica and japonica to combine well, and the offspring are not easy to be stable. In recent years, there has been a great deal of research on inheritance and few studies on the impact on the ecological environment. For this reason, we observed the main characteristics of indica-japonica hybrids under different ecological conditions