当将基因型放入新的和不熟悉的生产系统中时,强GxE(环境相互作用的基因型)的存在是选择优质基因型的主要障碍。特别是对于育种者和农民来说,具有高产量潜力和对特定环境具有较低适应性和稳定性的基因型或品种永远不是合适的选择。有目的地,通过使用现代统计工具,如AMMI(加性主要效应和多乘性相互作用),选择了四个连续季节来列举27种法国豆基因型的产量和品质性状的表型稳定性,GGE[G+(G×E)]和聚类分析。AMMI方差分析见证了G的大小,E和GxE为81.94%,分别占总变异的11.58%和6.48%。IPCAI(相互作用主成分轴)贡献55.44%,73.60%,71.81%,81.69%和72.16%GxE变化的天数到50%开花,吊舱长度,每株植物的豆荚数量,平均豆荚重量和豆荚产量。对于定性特征,即,蛋白质含量(mg/100gFW),总可溶性固形物(%)和总酚含量(mgGAE/gFW)参与IPCAI对总基因型受环境互作变异的影响为89.55%,分别为96.07%和66.52%。AMMI双plot揭示了法国豆基因型,即。,IC632961,ArkaSukomal,IIHR-PV-29,IIHR-PV-30在作为两个大环境的哈里夫晚期和rabi中具有较低的AMMI稳定性值和较高的相关产量和品质性状的平均值。多变量分析表明,豆荚产量相关性状对总变异的贡献显着提高,并且它们之间呈正相关。根据欧几里得距离,这27个法国豆基因型形成了5个群体,聚类揭示了法国豆基因型多样性的本质。,IC632961,IIHR-B-PV-24,ArkaSukomal,ArkaArjun,Ayoka和Phalguni可应对不断变化的环境,可用于未来的育种计划。研究揭示了杆型法国豆基因型,即。,IC632961,ArkaSukomal和灌木型菜豆基因型,即。,IIHR-B-PV-29,IIHR-B-PV-30有望在未来的有关性状育种计划中利用。
The presence of strong G x E (genotype by environment interaction) is a major hurdle for selecting superior genotypes when genotypes are placed into new and unfamiliar production systems. Genotype or cultivar (s) with high yield potential and having less adaptability and stability to particular environment is never a suitable choice for a breeder and farmer particularly. Purposefully, four successive seasons were chosen to enumerate the phenotypic stability of 27 French bean genotypes for yield and quality traits by involving modern statistical tools like
AMMI (Additive Main Effect and Multiplicative Interaction), GGE [G + (G x E)] and cluster analysis.
AMMI analysis of variance witnessed magnitude of G, E and G x E was 81.94%, 11.58% and 6.48% of the total variation respectively. The IPCA I (Interaction Principal Component Axes) was contributed with 55.44%, 73.60%, 71.81%, 81.69% and 72.16% G x E variations of days to 50% flowering, pod length, number of pods per plant, average pod weight and pod yield respectively. For qualitative traits i.e., protein content (mg/100g FW), total soluble solids (%) and total phenol content (mg GAE/g FW) the involvement of IPCA I to total genotype by environment interaction variations were 89.55%, 96.07% and 66.52% respectively. The
AMMI biplot revealed French bean genotypes viz., IC632961, Arka Sukomal, IIHR-PV-29, IIHR-PV-30 having low
AMMI stability value and higher mean value for relevant yield and quality traits in both late kharif and rabi as two mega-environments. Multivariate analysis demonstrated significant higher contribution of pod yield associated traits towards total variations and positive correlation between them. The 27 French bean genotypes formed five groups as per Euclidean distance and the clustering revealed the nature of diversity of French bean genotypes viz., IC 632961, IIHR-B-PV-24, Arka Sukomal, Arka Arjun, Ayoka and Phalguni in response to changing environments and can be utilized in future breeding programme. The study revealed pole type French bean genotypes viz., IC 632961, Arka Sukomal and bush type French bean genotypes viz., IIHR-B-PV-29, IIHR-B-PV-30 could be promising for utilization in future breeding programmes for the concerned traits.