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Identifying Stable Bread Wheat Derived Lines across Environments Through GGE Biplot Analysis

Identifying Stable Bread Wheat Derived Lines across Environments Through GGE Biplot Analysis

Sajid Muhammad* and Fida Mohammad 

Department of Plant Breeding & Genetics, The University of Agriculture, Peshawar, KP-Pakistan

agriculture.ext123@gmail.com 

ABSTRACT

Identification of high yielding stable genotypes is always on the agenda of cultivar development programs. Testing of genotypes across environments is required to determine yield stability of genotypes. The specific objective of the current study was to analyze genotype by environment interaction (GEI) of grain yield for 50 genotypes using GGE model. Germplasm was field-tested using alpha lattice design in two replications at Peshawar (E-1 and E-3), Hangu (E-2 and E-4) and Kohat (E-5) Khyber Pakhtunkhwa province, Pakistan during 2011/12 and 2012/13.GGE biplot analysis explained 79.89% (PC1=56.57 and PC2= 23.32%) of the total variation. Genotype G19 positioning on vertex in sectorE-3, E-4 and E-5, while G30 in sector E-1 and E-2 revealed their specific suitability to these environments. GGE biplotrecognizedE-4 as ideal environment, whereas G49 as ideal genotype.Thus, GGEbiplotanalysis identified G49 (Wafaq×Ghaznavi-98-3) as high yielding stable genotype among breeding lines which can be commercialized after fulfilling procedural requirements. 

 

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Sarhad Journal of Agriculture

June

Vol. 35, Iss. 2, Pages 320-662

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