Multivariate analysis for adaptability and yield stability of rapeseed (Brassica napus L.) strains in different agro-climatic zones

Author:

Bibi Tahira1,Mustafa Hafiz1,Mahmood Tariq1,Hameed Amir2,Ali Qurban3

Affiliation:

1. Directorate of Oilseeds, Ayub Agricultural Research Institute, Faisalabad, Pakistan

2. Statistical Section, Ayub Agricultural Research Institute, Faisalabad, Pakistan

3. Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan + Institute of Molecular Biology and Biotechnology, University of Lahore, Lahore, Pakistan

Abstract

Plant breeders always look for high yielding genotypes based on both genotype and G ? E (interaction of genotype with environment) for stability and adaptability in diversified environmental conditions. This present study consists of eight Brassica napus L. strains using RCBD design with three replications and conducted at eight locations in Punjab province, Pakistan to determine general and specific adaptability in 2014-2015. Additive main effects and multiplicative interactions (AMMI) study showed that the environments (86.65%) have more influence to treatment sum of squares as compare to the interaction of genotype with environment (9.4%) and genotypes (2.65%) respectively, indicating the presence of adequate genetic variation for useful selection to identify stable genotypes. G x E interaction was further partitioned by principal component analysis (PCA). The first four multiplicative axis terms (IPCA1, IPCA2, IPCA3 and IPCA4) give detailed 54.0%, 28.0%, 9.9% and 5.6% of GEI sum of squares (SS), respectively. The AMMI method was used to recognize suitable genotype / genotypes to specific locations / environments. The results showed that genotypes RBN-08004, RBN-04021 and 11-CBN 006 were more stable with the lowest interaction and have general adaptability with yield near about their mean yield. Genotype RBN-08004 has more than average yield, IPCA value closer to zero (1.8), genotype selection index (GSI) is 4 and least AMMI stability value (ASV) of 3.6 therefore considered the most stable. According to AMMI analysis, KN-253, KN-256 and RBN-08004 (adaptive group 1) exhibited specific adaptability for Bhakar and Khanpur with yield greater than mean and positive interaction. Genotype RBN-04047 (adaptive group 2) which has yield lesser than mean yield and positive interaction showed specific adaptability for Chakwal and Karore. It was observed that stability evaluation through AMMI analysis may be used for selection of genotypes from experiments performed under different environmental conditions.

Publisher

National Library of Serbia

Subject

Plant Science,Genetics

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Adaptive capacity of maternal lines of winter rapeseed (Brassica napus L.) in the Central zone of the Krasnodar region;INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE “CURRENT ISSUES OF BIOLOGY, BREEDING, TECHNOLOGY AND PROCESSING OF AGRICULTURAL CROPS” (CIBTA2022) (To the 110th anniversary of V.S. Pustovoit All-Russian Research Institute of Oil Crops);2023

2. EVALUATION OF COMBINING ABILITY AND HETEROSIS IN VARIOUS TRAITS OF ZEA MAYS HYBRIDS;Applied Ecology and Environmental Research;2020

3. Yield stability of rapeseed genotypes under drought stress conditions;Indian Journal of Genetics and Plant Breeding (The);2019-01-30

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