Phenotypic and Quality Traits of Chickpea Genotypes under Rainfed Conditions in South Italy

Abstract

Chickpea (Cicer arietinum L.) is an important cool-season food legume crop that is mainly cultivated as a rainfed crop. This study was conducted in Italy between 2017 and 2019 to evaluate the stability of seed yield (SY), biomass (AGB) and 1000 seed weight (THS), and to assess the seed quality of 12 kabuli chickpea accessions under field conditions. The likelihood-ratio test revealed significant effects of genotype only for the SY and THS. The environment and genotype × environment interaction (GEI) effects were highly significant for all variables. We found that the environment (year) and GEI explain 55.72% and 20.87% of the total seed yield variation, respectively. Most chickpea accessions showed sensitivity to frost conditions in the third growing season. No relationship was observed between the yield and the protein content in Kabuli chickpea. Among the accessions, Ares and Reale showed the best performance under all environmental conditions, and the Reale was the most stable chickpea.

Stability of Rice Mutant Lines By Linear Mixed Model And Suggestion A New Index Based For Yield Performance And Stability

“…The MTSI index enables simultaneous selection of genotypes based on performance and stability in terms of all of the traits and therefore is a unique index 7 . This index was used for selection of superior genotypes in Solanum melongena 41 , Brassica spp 42 , Chickpea 43 , maize 29 and rice 8 . MTSI protrudes as an effective tool to identify the strengths and weaknesses of genotypes and to select those with desired mean performance and stability.…”

Evaluation of 130 Eggplant (Solanum melongena L.) Genotypes for Future Breeding Program Based on Qualitative and Quantitative Traits, and Various Genetic Parameters

“…In order to understand the predicted selection benefits, assessing genetic progress may be an important method for improving crops. Several studies have shown that selection can effectively use available genetic variations with a certain degree of heritability to improve specific traits [26,57]. The concern of both heritability and genetic advance is more effective over the distinctively use of heritability.…”

“…The Smith-Hazel Index (SH index) is widely utilized in plant breeding as a multitrait selection index [26]. Reversing a phenotypic covariance matrix and a vector of economic weights is required to calculate the SH index.…”

“…Reversing a phenotypic covariance matrix and a vector of economic weights is required to calculate the SH index. As a result of the presence of multicollinearity, poorly conditioned matrices and biased index coefficients would occur, affecting genetic gain estimations [26]. To account for the multicollinearity issue in multitrait indexes, a combination of multivariate approaches is effective in overcoming their limits.…”

“…To account for the multicollinearity issue in multitrait indexes, a combination of multivariate approaches is effective in overcoming their limits. FAI-BLUP is a factor analysis-based model in which each ideotype's factorial scores are created based on desirable and undesirable elements [26]. Then, depending on the genotype-ideotype distance, a geographic probability is calculated allowing genotype ranking.…”