滨海稻区水稻旱直播品种筛选

Screening Test of Rice Varieties of Direct Sowing on Dry Paddy Field in Coastal Rice Region

试验以盐粳系列13个品种为材料,对各品种在滨海稻区旱直播状况下成苗率、分蘖能力、生育期等情况进行调查分析,同时结合田间表现及小区实脱测产、米质测量,筛选适宜滨海稻区旱直播的粳稻品种。结果表明,于8月17之前齐穗的盐粳933、盐粳1403成苗率、成穗率、收获穗较高;盐粳933实际产量为8.84 t/hm2,比盐粳1403、盐粳377、盐粳662、盐粳765分别高0.23%、1.96%、3.03%、3.63%;盐粳1403虽产量比盐粳933略低,但米质较好;综合分析盐粳1403可以做为滨海稻区旱直播备选品种。

In this experiment,13 varieties of Yangeng-series were used as materials to investigate and analyze the seedling formation rate,tillering ability and growth period of each variety under direct drought in coastal rice area.Meanwhile,the japonica varieties suitable for direct sowing on dry paddy field were screened by combining field performance,yield measurement and rice quality measurement.The results showed that yangeng-933 and Yangeng-1403,which had full panicle before August 17,had higher seedling forming rate,ear forming rate and harvested panicle.The actual yield of Yangeng-933 is 8.84 t/hm2,which is 0.23%,1.96%,3.03%and 3.63%higher than that of Yangeng-1403,Yangeng-377,Yangeng-662 and Yangeng-765,respectively.Although the yield of Yangeng-1403 is slightly lower than that of Yangeng-933,but the rice quality is better.Comprehensive analysis shows that Yangeng-1403 can be used as an alternative variety for drought direct seeding in coastal rice area.