Characterization, Genetic Diversity, and Clustering of Common Bean (Phaseolus vulgaris L.) ‎Accessions Based on Seed Yield and Related Traits ‎

Abstract

T WENTY-SEVEN accessions of common bean were evaluated for their performance and genetic diversity based on 11 seed yield and related traits,with the aim to identify diverse accessions with greater performance to exploit the heterotic potential in hybrid combinations between them, with the possibility to obtain superior segregants in subsequent generations.The study was carried out at El-Dalgamon village, Kafr El-Zayyat, El-Gharbiya Governorate, Egypt, during the two successive summer seasons of 2016 and 2017.The accessions were arranged in a complete block design with three replications. The Tocher optimization method and unweighted pair group method with arithmetic mean (UPGMA), were used for clustering based on Mahalanobis D 2 statistic as a dissimilarity measure. The results indicated a wide genetic variability for all traits. The accessions were grouped into five clusters by Tocher's method.Cluster I was the largest, comprised 22 accessions, cluster II, which included the accessions NGB17827 and NGB17823, had the maximum inter-cluster distances with the other clusters, while each of the remaining three clusters contained only one accession. There was an agreement between UPGMA hierarchical clustering and Tocher optimization method.To obtain superior recombinants in segregating generations, we suggest investigating the crossing combinations of Giza 6 with,

Evaluation of Common Bean (<i>Phaseolus vulgaris </i>L) Cultivars for Yield and Yield-Related Traits at Sekoru District, South Western Ethiopia

“…Gonçalves et al [33] also observed that these desired traits with a strong correlation are crucial for selection in plant breeding. In agreement with this result, Alghamdi [32] and Ballat and Araby [21] reported a positive and significant association of seed yield with plant height, pods/plant, and branches/plant and with other characters.…”

“…In terms of the present study, the varieties with high plant height produced more branches per plant and a large number of pods per plant, which contributes to a better amount of seed per plant. This result is supported by Al-Ballat and Al-Araby [21] who reported that the height of the plant is positively and significantly correlated with the number of pods per plant and the seed yield per plant. The number of pods / plant showed significant differences between treatments.…”

Potential of Biotic and Abiotic Inducers of Eliciting Systemic Resistance in Snap Bean (Phaseolus vulgaris L.) in Controlling Rust Caused by Uromyces appendiculatus

“…Common bean (Phaseolus vulgaris L.) is the most consumed vegetable food legume worldwide either as green pods or as dry seeds and helps in improve fertility of the soil by biological N 2 fixation (Singh, 1999 andAl-Ballat andAl-Araby, 2019). In 2019, the global common bean harvested area was 33.1 million ha and produced 28.9 million tons (FAOSTAT, 2019).…”