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野生稻与栽培稻杂交后代往往存在腊熟掉粒的野生稻劣性遗传,且呈保守遗传,如不解决这个问题,杂种后代就将失去利用价值。传统的办法是用逐步回交来加以克服,但至少要做到五代以上才能奏效,这在时间上、经济上都是很不合算的。为了寻求一种快速的办法,笔者于1980年进行了如下尝试:将无遮盖露地越冬的GL—1宿根稻(光粳A×柳州野生稻杂交后代)3月日移入田间薄膜秧床进行密闭培苗,(宿根出
Offspring of hybrid rice and cultivated rice often contain waxy and unpolished wild rice, which is of poor genetic inheritance. If the problem is not solved, offspring will lose their value. The traditional method is to overcome it by gradually returning to the backcross, but at least it will take more than five generations to work, which is economically very uneconomical. In order to find a quick way, the author made the following attempt in 1980: GL-1-perennial rice (Guangjing A × Liuzhou wild rice hybrid progeny) unoccluded in the open field was moved into field film seedlings on March, Miao, (pestle out