中粳在江汉平原的适宜栽培期研究  

Suitable Cultivation Period of Middle-season Japonica Rice in Jianghan Plain

作　　者：邵平[1] 汪志威[1] 姚仪敏[1] 王燚[1] 闫浩亮 田小海[1,2] 

机构地区：[1]长江大学农学院,湖北荆州434025 [2]教育部长江中游湿地农业工程研究中心,湖北荆州434025

出　　处：《湖北农业科学》2014年第23期5657-5661,5665,共6页Hubei Agricultural Sciences

基　　金：科技部国际合作日本优质粳稻品种生态适应性与利用关键技术合作研究项目(2012DFG31740)

摘　　要：采用大田试验方法,以淮稻5号、津稻263、盐粳7号、镇稻99、徐稻4号和金粳1号为试验材料,分5期播种,研究了不同播期条件下各品种的生育期、产量和品质变化,探讨用粳稻做中稻在江汉平原的适宜栽培期。结果表明,供试品种全生育期随播期推迟而缩短。各期产量受播期影响较小,产量构成要素中,各品种不同播期条件下毎穗总粒数差异不显著,结实率整体随播期推迟升高,千粒重变化较小。稻米品质随播期的推迟无显著变化,稻米品质主要参考因子中,糙米率和精米率相同品种各期之间无显著差异,整精米率、垩白度、直链淀粉含量随播期的推迟呈上升趋势。The suitable cultivation period of japonica as middle-season rice in Jianghan Plain was studied. 6 japonica rice varieties including Huaidao No.5, Jindao 263, Yanjing No.7, Zhendao 99, Xudao No.4 and Jinjing No.1 were used. The changes of growth period, yield and quality were studied under condition of 5 different sowing dates. The results showed that growth period of six rice varietied was shorten by the delay of sowing date. The yield of each variety was less affected by sowing date. In yield components, the total grain number per panicle had no differences. Rate of seed setting increased. 1000-grain weight changed little in each variety with the delay of sowing date. The quality of the tested cultivars did not change very much. Among the main reference factors of rice quality, there were no significant differences about the brown rice rate and the refined rice rate. The whole refined rice rate, chalkiness degree and amylose content was increased with the delay of sowing date.

关 键 词：中粳 适宜栽培期 生育期 产量 稻米品质 

分 类 号：S511.22[农业科学—作物学] S352.1