Selection Experiment of Hybrid Rice Varieties in Changsha County
In order to select high-yielding middle hybrid rice varieties suitable for climatic conditions in Changsha County,15 medium rice varieties such as Zhenliangyou 5438,Chen liangyou 5438,Qingxiangyou 261 and Y Liangyou No.1(con-trol variety)were used as experimental materials.The variety screening experiment was carried out in Longwangmiao Vi-llage,Chunhua Town,Changsha County.The results showed that four of the tested varieties performed well,and their yields increased by more than 5%compared with Y Liangyou 1(CK).Among them,Keliangyou 1019 had the highest yield,up to 10 561.5 kg/hm2,which was 16.7%higher than CK,and its whole growth period was 130 d.Weiliangyou 7713 ranked second with 10 522.5 kg/hm2 and its whole growth period was 128 d,and Liangyou 5077 ranked third with 9 882.0 kg/hm2.The yield of Zhuoliangyou 1126 is the fourth,which is 9 534.0 kg/hm2.According to the indexes of growth period,yield,main agronomic characters and resistance,Keliangyou 1019,Weiliangyou 7713,Liangyou 5077 and Zhuoliangyou 1126 are suitable to be popularized and planted in Changsha County.
国家科技期刊平台
NSTL
万方数据
