Efficiency of different breeding strategies in improving the faba bean productivity for sustainable agriculture

Abstract

Breeding methods applied to faba bean are either based on self pollination by developing lines under insect proof cages or baed on open pollination by developing lines under natural pollination conditions. The purpose of this research is to compare the performance of pedigree selection method (PSM) as a self pollinated breeding method and recurrent selection methods (RSM) and synthetics (SYN) as an open pollinated method). Eleven diverse accessions were used to develop in F6 generation 24 lines using PSM, 35 lines using RSM and nine synthetics from 2012 to 2016. The different developed lines were evaluated in two winter cropping seasons (2014/2015) and (2016/2017) in an alpha design with two replications. Significant differences among lines and among breeding methods were obtained for biological and grain yield, days to flowering, days to maturity, branches per plant, pods per plant, hundred seed weight. Synthetic populations had higher yield than RSM lines; whereas RSM lines revealed higher yield performance than PSM lines. Multivariate analysis indicates that most of the variation among different lines developed by different methods is due to variation in number of branches, days to flowering, biological and grain yield. Open pollinated cultivars were found to be more appropriate to increase the yield in farmers' fields and may play a critical role in conserving wild pollinators, but ensuring optimal yields might require capacity building for farmers concerning wild pollinators.

Adaptability and Stability of Faba Bean (Vicia faba L.) Accessions under Diverse Environments and Herbicide Treatments

“…The classification of low yielding genotypes as stable and high yielding genotypes as unstable by the different stability parameters might be due to the type of accessions evaluated. In the present study, the evaluated accessions are pure lines that have narrow genetic base, narrow adaptability and generally are low yielding and unstable due to homozygosity [64,65].…”

Conventional and Molecular Breeding Tools for Accelerating Genetic Gain in Faba Bean (Vicia Faba L.)

“…Furthermore, they are initially grown and selected under insectproof enclosures. Depending on the level of outcrossing, faba bean breeding may be performed under conditions of controlled selfing in insect-proof cages or, with less control and in case of little outcrossing, based on developing lines under open field conditions (Gharzeddin et al, 2019).…”

Comparative Analysis of Secondary Metabolites Produced by Ascochyta fabae under In Vitro Conditions and Their Phytotoxicity on the Primary Host, Vicia faba, and Related Legume Crops

“…Cold-weather legumes are a valuable source of premium plant-based protein suitable for human consumption and livestock feed. They play an essential role in crop rotation on arable lands, helping to minimize the requirement for fertilizer usage and acting as effective interim crops [ 1 , 2 , 3 , 4 , 5 , 6 ]. However, as for any crop, legumes can be affected by a number of diseases, out of which Ascochyta blights are one of the most important groups of necrotic fungal diseases globally present in all legume cultivation areas [ 7 ].…”

“…In this study, we focus on the Ascochyta blight of faba bean which is widespread and can cause significant damage by breaking stems, leaf lesions, and seed depreciation. Disease control through crop rotation, clean seed, and chemical treatment is not wholly effective [ 4 ] and only moderate levels of genetic resistance are available [ 16 , 17 ], reinforcing the need to understand pathogenicity factors as targets both for resistance breeding and for designing alternative management strategies.…”