连续阴雨与早春低温是影响我国南方水稻生产的主要不利气候因素，常导致水稻烂芽和烂种。本研究通过在自然条件下筛选大田中越冬后而能够在翌年发芽成长为植株的方式，以期获得成苗率高、烂芽烂种率低的种质资源。结果表明，172份种质在自然条件下经历冬季后，绝大部分种质的种子腐烂，仅Kasalath和日本晴种子在大田越冬后能发芽生长。这两种常规水稻种子大田越冬特性的发掘，将为培育降低烂芽烂种率的优良品种提供宝贵种质资源。%Continuous wet weather and low temperature in early spring are the main adverse climatic factors affecting rice production in south China, which often leads to rotten bud and rotten seed. In this study, identification of rice germplasms with high seedling rate and low rate of rotten bud and rotten seed was performed by screening for the rice seeds,that can live through the winter in the field and will sprout in the following year. 172 rice germplasms were used as materials in this study. The results showed that the majority of the 172 rice germplasms seed rotten after winter. The seeds of indica rice cultivar Kasalath and japonica rice cultivar Nipponbare were the only two rice germplasms, which seeds can live through the winter in the field and sprout in the following year.The identification of Kasalath and Nipponbare would provide a valuable rice germplasm for breeding elite cultivars with high seedling rate and low rate of rotten bud and rotten seed.
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