Journal of Research in Ecology
JRE
Ecology
http://ecologyresearch.info/
0
2319-1546
2319-1554
en
2017
08
19
5
2
online
1
fulltext
en
Evaluation of adaptability in bread wheat genotypes under dryland conditions in tropical and subtropical locations
Ecology
Original Research
Comparing stability efficiency and range of conformity is becoming significant in bread wheat (Triticum aestivum L.). Variable environmental conditions cause to creation of great genotype by environment (G×E) interaction. The yield stability of 18 bread wheat lines and genotypes was surveyed through genotype and genotype × environment interaction using the GGE biplot method. Field experiments were accomplished in 14 rainfed environments in Iran to specify G×E interactions for grain yield of wheat genotypes. The trials were executed as a randomized complete block design with four replications in three years. A combined analysis of variance across environments represented that main and interaction effects (G, E and GE, respectively) were highly significant. Principal component analysis was carry out and PC1 and PC2 displayed 31.69% and 26.77% of the total sum of squares, respectively. Therefore, these PCes were used to develop GGE biplot diagrams. Polygon diagram of the biplot displayed two environments, (1)-Gachsaran and Moghan and (2)- Ilam and Khoramabad, for cultivation of wheat in rainfed regions of Iran. The means and stability parameters of the genotypes in the biplot indicated that genotypes G2, G9 and G8 were advisable for Ilam and Khoramabad, Also, G14 and G17 were suitable for Ghachsaran, so these genotypes are adapted to warm rainfed areas of Iran and concluded for release in these locations. The biplot displayed that Khoramabad and Ilam were associated, but had no correlation with Moghan. Furthermore, Ghachsaran and Gonbad were correlated too, but had no association with other locations.
AMMI analysis, Rainfed condition, Stability.
859
866
http://ecologyresearch.info/documents/EC0403.pdf
Hassan
Khanzadeh
khanzadeh1344@gmail.com
yes
Crop and Horticulture Research Department, Ardabil Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Parsabad, Iran.
Ali
Akbar
Asadi
No
PhD Graduates in the field of Plant Breeding of Tabriz University of Iran.
Mohtasham
Mohammadi
No
Dryland Agricultural Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Gachsaran, Iran.
Hassan
Ghojagh
No
Seed and Plant Research Department, Golestan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Gonbad, Iran.
Tahmasb
Hossein
Pur
No
Seed and Plant Research Department, Lorestan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Khoramabad, Iran.
Mohammad
Armiyun
No
Seed and Plant Research Department, ILam Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Ilam, Iran.