
大田越冬水稻种子的筛选鉴定
Screening and Identification of Rice Seeds that Live through Winter in the Field
张维林,王长春,胡海涛,杨玲* . 大田越冬水稻种子的筛选鉴定[J]. 中国稻米, 2016 , 22(5) : 31 -34 . DOI: 10.3969/j.issn.1006-8082.2016.05.007
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.
Key words: rice; over wintering; seed; bud; rice germplasm
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