Author/Authors :
Meng، Y. نويسنده Gansu Key Lab of Crop Improvement and Germplasm Enhancement,Gansu provincial Key Lab of Aridland Crop Science,Lanzhou,China , , Ren، P. نويسنده College of Agronomy,Gansu Agriculture University,Lanzhou,China , , Ma، X. نويسنده College of Agronomy,Gansu Agriculture University,Lanzhou,China , , Li، B. نويسنده College of Life Sciences and Technology,Gansu Agricultural University,Lanzhou,China , , Bao، Q. نويسنده Gansu Academy of Agricultural Sciences,Lanzhou,China , , Zhang، H. نويسنده Gansu Key Lab of Crop Improvement and Germplasm Enhancement,Gansu provincial Key Lab of Aridland Crop Science,Lanzhou,China , , Wang، J. نويسنده Gansu Key Lab of Crop Improvement and Germplasm Enhancement,Gansu provincial Key Lab of Aridland Crop Science,Lanzhou,China , , Bai، J. نويسنده College of Agronomy,Gansu Agriculture University,Lanzhou,China , , Wang، H. نويسنده College of Agronomy,Gansu Agriculture University,Lanzhou,China ,
Abstract :
The yield performance of 23 barley (Hordeum vulgare L.) genotypes in sixteen test environments across a barley growing region of China was evaluated. The experiment was conducted using a randomized complete block design with three replicates, in two cropping seasons (20102011, in the South 20122013, in the North). The GGE biplot was applied to analyze the data obtained in the multienvironment trials. The results indicated that either the North or South test sites could be grouped into three possible megaenvironments, the best performing and candidate genotypes for the North and South were G7 (Zhongsimai1), G5 (08B26), G17 (G231M004M), and G13 (Zhe3521), respectively. Among the sixteen test environments, E6 (Shihezi) and E12 (Yancheng) had the greatest discriminating ability, while E1 (Haerbing), E4 (Shang kuli), E8 (Wuhan), and E16 (Chengdu) could be dismissed from the future trials due to the similarity of their ability of discrimination and representation.
Keywords :
Discriminating ability , Genotype main effect , Multi-environment trial , stability
