基于来宾“旱改水”的6个水稻品种农艺性状及产量构成比较研究

Comparative Study on Agronomic Traits and Yield Composition of 6 Rice Varieties Based on"Paddy Field Transformed from Dryland"in Laibin

为筛选适合来宾“旱改水”种植的水稻品种,以6个水稻品种(万太优美占、万太优726、湖广优241、河香优1684、香118优726、丁香优726)为研究对象,对6个品种的农艺性状和产量构成进行分析,结果表明,香118优726和丁香优726的综合性状表现较好,高峰苗数、有效穗数、总粒数和实粒数较多;香118优726高峰苗数、有效穗、总粒数、实粒数分别为304.35万株/hm^(2)、295.20万株/hm^(2)、153.10粒/穗,124.33粒/穗,丁香优726高峰苗数、有效穗、总粒数、实粒数分别为377.10万株/hm^(2)、270.15万株/hm^(2)、153.08粒/穗,123.71粒/穗;高峰苗数、有效穗数、总粒数、实粒数对产量的影响较大。香118优726和丁香优726较适合在来宾“旱改水”种植,研究结果可为来宾市“旱改水”水稻品种引进、示范和推广提供参考依据。

In order to select rice varieties suitable for paddy field transformed from dryland in Laibin,the agronomic traits and yield composition of 6 rice varieties(Wantai Youmeizhan,Wantaiyou 726,Huguangyou 241,Hexiangyou 1684,Xiang118You726,Dingxiangyou 726)were analyzed.The results showed that,Xiang118You726 and Dingxiangyou 726 showed better comprehensive traits,with higher seedling number,effective panicle number,total grain number and solid grain number;the peak seedling number,effective panicle number,total grain number and solid grain number of Xiang118You726 were 3.0435 million/hm^(2),2.952 million/hm^(2),153.10 grain/panicle,124.33 grain/panicle,respectively and the peak seedling number,effective panicle number,total grain number and solid grain number of Dingxiangyou726 were 3.771 million/hm^(2),2.7015 million/hm^(2),153.08 grain/panicle and 123.71 grain/panicle,respectively;peak seedling number,effective panicle number,total grain number and solid grain number had great influence on rice yield.Xiang118You726 and Dingxingyou726 are suitable for paddy field transformed from dryland in Laibin and the results can provide reference for the introduction,demonstration and promotion of rice varieties in Laibin.