中稻—再生稻新组合试验初报

Primary report to new combination of semilate rice and ratoon rice

2011年引进9个中稻—再生稻新组合进行对比试验,以Ⅱ优沈98为对照,从产量、穗粒结构、抗逆性等性状进行对比,结果表明:Ⅱ优3301、Ⅱ优沈98、嘉糯I优6号等组合,不但头季稻表现突出,再生季的再生率、产量也表现较优,较适宜长汀县推广;谷优3301、宜优99、宜优673因生育期较短,宜作搭配品种推广;其余需再试种考查。

Nine new combinations of semilate rice and ratoon rice were introduced and comparative tests were carried out in 2011.The characters including yield,panicle-spikelet structure,stress resistance and so on were compared with II Youshen 98 as control.The result showed that the combinations of II You 3301,II Youshen 98,Jianu I You No.6 not only performed prominently in main cropping season,but also showed better in regeneration rate and yield in ratoon rice season.They were suitable to be extended in Changting county.The growth period of Guyou 3301,Yiyou 99 and Yiyou 673 was shorter,and they were used suitably as auxiliary cultivars.Trial planting needed to be conducted in another combination.