利用AMMI模型分析我国杂交籼稻整精米率

 利用AMMI 模型分析了6种杂交籼稻在我国5个籼稻亚区平均整精米率,以评价我国杂交籼稻整精米率的稳定性、地区适应性等。结果表明,两优培九的整精米率较高且稳定性优;Ⅱ优838、丰两优1号的整精米率较高但稳定性较差;D优527、金优207的整精米率虽低但稳定性较好;冈优725的整精米率较低且稳定性最差。D优527、冈优725、金优207在浙、沪、苏稻亚区表现较好的适应性;两优培九、Ⅱ优838、丰两优1号在琼粤桂稻亚区、 闽台稻亚区、 皖赣鄂湘稻亚区、滇黔川渝稻亚区表现较好的适应性。皖赣鄂湘稻亚区、 滇黔川渝稻亚区的交互作用小且品种辨别力弱,另外3个则不然。因此,我国籼稻整精米率以基因型与环境的互作效应最大,基因效应其次,环境效应相对较小。

AMMI Model Based Analysis on Head Milled Rice Rate of Hybrid indica Rice in China

Head milled rice rate(HMRR) of six series of indica hybrid rice from five rice growing regions was analyzed by using additive maineffects and multiplicative interaction(AMMI) model.The stability and adaptability of HMRR of indica hybrid rice were evaluated by analysis on genotype,environment effect and genotype×environment interaction.The results showed that Liangyoupeijiu had higher HMRR and excellent stability.HMRR of Ⅱyou 838 and Fengliangyou 1 was higher but less stable.Dyou 527 and Jinyou 207 had low HMRR but better stability.HMRR of Gangyou 725 was low and worst stable.Dyou 527,Gangyou 725 and Jinyou 207 performed better adaptability in rice growing region of Zhejiang,Shanghai and Jiangsu.Liangyoupeijiu,Ⅱyou 838 and Fengliangyou 1 showed good adaptability in other four regions.The rice growing region of Anhui,Jiangxi,Hubei and Hunan and rice growing region of Yunnan,Guizhou,Sichuan and Chongqing showed weak interaction and ability to distinguish cultivars.It is concluded that genotype×environment interaction effect has greater influence on HMRR.