摘要
以热粳优35(R35)、甬优15(Y15)、甬优4149(Y4149)和甬优4949(Y4949)等4个粳型中稻品种为供试材料,设置精量穴直播(XB)、机插秧(JC)两种机械种植模式,并以人工移栽为对照(CK),探索不同种植模式下粳型中稻生长发育和产量形成因素特点。结果表明,粳型中稻采用精量穴直播模式较采用人工移栽产量均显著提高;其中Y4149采用XB后,其穗总粒数显著增加,其他品种有效穗数均显著提高。与JC模式比较,R35和Y4949采用XB模式产量分别提高4.5%、4.9%,其产量提高的原因是有效穗数增加。在该试验条件下,R35和Y4949更适合精量穴直播种植模式。
Rejingyou 35 （R35）, Yongyou 15 （Y15）, Yongyou 4149 （Y4149） and Yongyou 4949 （Y4949） were used to study the impact of precision hill-drop drilling on yield and its components of Japonica medium rice. Three different cultivation methods including precision hill-drop drilling （XB）, mechanical transplanting （JC） and manual transplanting （CK） were taken. The results showed that precision hill-drop drilling significantly increased the yield of these four japonica medium rices. The yield of R35, Y15, and Y4949 was increased mainly through improving the valid panicles, while that of Y4149 was mainly through increasing the grains per spike. The yield of R35 was improved 4.5% compared with mechanical transplanting under precision hill-drop drilling, reaching significant level. The yield of Y4949 was improved 4.9% compared with mechanical transplanting under precision hill-drop drilling. The analysis of yield and its components showed that there was an increase of valid panicles. Under the experimental conditions, R35 and Y4949 were suitable for precision hill-drop drilling.
出处
《湖北农业科学》
北大核心
2014年第23期5662-5665,共4页
Hubei Agricultural Sciences
基金
国家重大科技专项资助项目(2011BAD16B02
2012BAD04B12
2013BAD07B00)
国家水稻产业技术体系项目(CARS-01-04A)
国家农业科技成果转化项目(2012GB2D100299)
湖北省科技厅研发项目(YJN0204)
湖北省科技厅公益性科技研究项目(2012DBA41)
关键词
水稻
精量穴直播
粳型中稻
产量
rice
precision hill-drop drilling
japonica medium rice
yield
