【摘要】 通过对水稻双胚苗的选择及加强对双胚苗中的弱苗保护，双胚苗率有了明显提高，并伴生一些值得进一步研究的生殖异常现象。更多还原

【Abstract】 Twin Seedling rates have been increased through pedigree selection and protecting the weak twin seedlings. Some abnormal reproduction was also distovered.更多还原