寒地早粳稻耐冷害农艺性状调查

Investigation on Cold Tolerance Agronomic Traits of Early Japonica Rice in Cold Region

[目的]筛选黑龙江省早粳稻作区耐冷性好的水稻品种和种质资源。[方法]利用黑龙江农垦总局建三江农业科学研究所现代化冷害鉴定试验设施,对黑龙江省(总局)近年来审定品种或参试品系28份连续2年进行标准化冷水协迫种植调查。[结果]结果表明,各品种(系)常规栽培鉴定与冷水协迫种植鉴定各农艺性状比较,常规栽培各农艺性状均高于冷水协迫种植各农艺性状。各水稻品种(系)在冷水协迫条件下各农艺性状间存在着明显差异,空壳率与产量呈负相关。[结论]研究结果为黑龙江省早粳稻作区生产用种提供了科学依据。

[Objective]The aim was to se- lect early japonica rice varieties with good sex of cold tolerance and germplasm resources for Heilongjiang Province. [Method] The 28 strains of au- thorized varieties or volunteers which were validated by Heilongiiang Province （SAT） in recent years were standardize planted in cold water ,and the agronomic traits were investigated, by chilling quali- fication test facility modernization of Jiansanjiang institute of agricultural sci- ences, Heilongjiang land reclamation bu- reau. [Result] the results showed that the agronomic traits of rice with convention- al cultivation were higher than the rice in cold water. The agronomic traits of rice varieties （or lines） in the cold water in- timidation conditions were significant differences between each other, and the shell ratio was negatively correlated with yield. [Conclusion] The result provided a scientific basis for production varieties selection of early japonica rice in Hei- longjiang Province.