Yield Stability Analysis Of Main Rice And Wheat Varieties In Jiangsu Agricultural Reclamation In Recent Three Years

In order to study the adaptability and yield stability of large-scale planting rice and wheat varieties in Jiangsu Agricultural Reclamation during the past three years,20 main rice varieties and 15 main wheat varieties was selected from Xinyang and Dongxin for three consecutive years.Variance analysis,correlation analysis and AMMI model was used to study the stability analysis of variety.(1)Wuyujing3 was the rice with the best yield stability in Xingyang,followed by Suken118 and Nanjing9108 with better yield stability,and Yanjing15 with poor stability;Wuyunjing27,huajing8 and Nanjing9108 have better effective ear stability,while Wuyujing3,Huaidao5 and Jinjing787 have poor effective ear stability;The grain Numbers of Jinjing787 and Lianjing10 was the highest,but the stability was poor,Yanjing16,Suken118 and Huaidao5 had better grain number stability;Sidao785,Wuyujing3 and Huajing5 had higher 1000-grain weight and better stability,while Yanjing16,Wuyunjing27 and Jinjing787 have poor stability of 1000-grain weight.The best annual yield stability of Dongxin was Xudao9,followed by Shengdao22 and Suxiu867 with better yield stability,Shengdaol8 with poor stability;The effective ear quality of Huajing5 was better,and the effective ear stability of Xudao9,Lindao16,and Shengdao22 was poor;The actual grain number of shengdao18 was kept at a high level with better stability,while Lianjing7,Xudao9,Lindao16 and Suxiu867 had poor stability;The stability of Shengdao18,Shengdao22 and Lindao16 1000-grain weight was better,and the stability of Suxiu8671000-grain weight was poor.(2)The stability of wheat yield Huaimai22 and Yangmai23 in Xinyang was the best;Ningmail3 and Huamai5 had the best stability of grain number,Huaimai22 was the worst;Huaimai33 and Huaimai22 had the best 1000-grain weight stability,and Huaimai351000-grain weight had the worst stability;Huaimai22,Huaimai33 and Huaimai35 had the best effective panicle stability and Ningmai13 had the worst effective panicle stability;The yield stability of Lianmai7 and Lianmai8 in Dongxin was better,while that of Huaimai32 and yannong19 was poor;Lianmai7 had the best effective ear stability and Huaimai32 had the worst;Huaimai33 and Lianmai7 had the best stability in the grain Numbers,and Huaimai28 was the worst;The stability of 1000-grain weight of Huaimai28 and Huaimai2833 was the best,while Huaimai32 was the worst.(3)According to the comprehensive yield factors,rice varieties in the south area of Yancheng,Xinyang,should be selected as Huaidao5,Huajing8,Yanjing16,Nanjing9108,Huajing5 and Suken118;White wheat cultivars Huaimai33 and red wheat cultivars Yangmai23,Ningmail3 and Huamai5 should be selected for wheat cultivars.Dongxin should select rice varieties with better stability and high yield level,including Huajing5,Lindaol6,Suxiu867 and Lianjing7;Wheat varieties should be planted with Lianmai7,Lianmai8 and Huaimai33.The recommended combinations of Xinyang point were:Huaidao 5,Huajing 8,Huamai 5 and Ningmai 13;the recommended combinations of Dongxin point were:Huajing 5,Lianjing 7,Lianmai 8 and Huaimai 33.