Estimates of Genetic Parameters Using Populations in Faba Bean (Vicia Faba L.)

Abstract

To improve yearlings and high potential yield of faba bean. Six populations P 1 , P 2 , F 1 , F 2 , BC 1 and BC 2 produced from three faba bean crosses , namely (Giza 429 x Giza 674), (Masr 1 x Giza 674) and (Giza 40 x Giza 402)) were conducted during three successive winter seasons 2013/14, 2014/15 and 2015/16. The experiment was conducted at the Experimental Farm., Faculty of Agricultural, Al-Azhar University (Assiut Branch). Recorded six generations mean days to maturity, branches number, number of pods, plant height per plant, 100 seed weight and seed yield per plant were exposed to upgrade test, and six abistatic detection method parameters and estimates of m, d, h, I, j and l parameters. The epistasis genes effects were reveal by the results that cannot be ignored when creating new program of breeding to expand faba bean inhabitants of economic traits. And controls inherit all attributes and nonadditive gene effects study added, with a value greater than the influence of genes dominate one in most cases. Among other elements added impact can be solved, i.e. , stabilizer × additive (I) interaction type and was also great and form the chief part of the effects of gene. (H) and (l) the consultation if days to maturity in two crosses, crosses the plant height in three, number one, cross sections and reflects the pods number / plant, 100 seed weight in three crosses and seed yield / plant in two crosses, indicating the duplicate type of interaction is allelic in these qualities. Accidentally discovered a sign and magnitude.

Variation in genetic variability and heritability of agronomic traits in Faba bean (Vicia faba L.) genotypes under soil acidity stress evaluated with and without lime in Ethiopia

“…This implies greater influence of environmental factors for the phenotypic expression of these traits that make it difficult or practically impossible to exercise selection based on phenotypic performance of the genotypes to improve the traits. In close agreement with this result it was reported that higher PCV than GCV exist for DM and PH (Haridy and El-Said, 2016); for DF, DM and PH (Sekhon et al, 2017), and higher PCV for DF and PH (Hamza et al, 2017).…”

“…While, the higher PCV values than GCV implies greater influence of environmental factors for the phenotypic expression of these traits that make it difficult or practically impossible to exercise selection based on phenotypic performance of the genotypes to improve the traits (Mesfin et al, 2019). Higher PCV values than GCV were reported for days to 90% maturity and plant height (Haridy and El-Said, 2016); for days to 50% flowering, days to 90% maturity and plant height (Sekhon et al, 2017); for days to 50% flowering and plant height (Hamza et al, 2017).…”

Genetic Variability on Grain Yield and Related Agronomic Traits of Faba Bean (<i>Vicia faba</i> L.) Genotypes Under Soil Acidity Stress in the Central Highlands of Ethiopia

“…This implies greater influence of environmental factors for the phenotypic expression of these traits that make difficult or practically impossible to exercise selection based on phenotypic performance of the genotypes to improve the traits. In close agreement with this result, high environmental variance than genotypic variance were reported for days to 90% maturity and plant height [16]. Likewise, high environmental variance reported for days to 50% flowering Genotypes Under Soil Acidity Stress in the Central Highlands of Ethiopia and plant height [14,17].…”

“…Genetic advance in absolute unit (GA) and percent of the mean (GAM), was estimated in accordance with the methods illustrated [25]. Genetic advance that is expected from selecting the top 5% of the tested genotypes as percentage of the mean (GAM) was categorized as low (0-10), moderate (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) and high (>20). Where, k = selection differential (at 5% selection intensity with value 2.06) σp = phenotypic standard h 2 = heritability; x = Grand mean.…”

“…The high phenotypic and genotypic coefficients of variation is an indication of the less influence of environmental factors in the expression of traits and the higher chance to improve the traits through selection breeding [15]. It was reported high environmental variance than genotypic variance for days to 90% maturity and plant height [16]. Similarly, high phenotypic variance reported for days to 50% flowering, days to 90% maturity and plant height [17].…”