Studies on combining ability for grain yield and component traits inKharifurdbean

Combining Ability Studies for Earliness and Determinate Trait in Genetically Diverse Lines of Ricebean [Vigna umbellata (Thunb.) Ohwi and Ohashi]

“…The variance due to lines x testers was highly significant for all the traits. The significant differences among different genotypes of urdbean and their F 1 hybrids for grain yield and other component traits in different sets of material were also reported by Purohit et al, (2016), Kujur andGill (2014).…”

“…It was observed that the desirable cross combination included high x high, medium x high, high x low, medium x medium and low x low type of general combiner (Gill et al, 2014).The high x medium or vice-versa combination could be due to additive and additive x additive type of gene action which is fixable in nature. The desirable performance of cross combination like low x medium, medium x medium general combiners may be ascribed to complimentary gene effects.…”

Studies on Combining Ability for Seed Yield and Its Related Traits in Blackgram [Vigna mungo (L.) Hepper]

“…Magnitude of dominance variance (σ 2 D) was found to be higher than additive variance (σ 2 A) for all the traits, which indicated the preponderance of non-additive gene action for these traits. Gill et al (2014) found that the relative estimates of dominance variance were higher than additive variance for days to 50% flowering, days to maturity, plant height and number of pods per plant. The average degree of dominance more than unity reveal over dominance confirming the above findings.…”

Generation Mean Analysis for Metric Traits in Urdbean (Vigna mungo [L.] Hepper)

“…Jahagiridar ( 2001) and Rahecha et al, (2006) reported additive gene action for this trait. Kute and Deshmukh (2002), Vasline et al, (2007), Anbu Selvam and Elangaimannan (2010), Supriyo Chakraborty et al, (2010), Isha Parveen et al, (2012, Selvam (2012), Gill et al, (2014) and Vijay Kumar et al, (2014) reported the predominance of dominance effect for this trait. Murugan (2005) and Ram et al, (2013) noticed that both additive and dominance variance contribute for this trait.…”

“…Thus additive, dominance and all the three types of epistasis had governed this trait. Several workers like Jiji Joseph and Santhosh Kumar et al, (2000 a), Manivannan (2002), Vaithiyalingam et al, (2002), Singh and Dikshit (2003), Anbumalarmathi et al, (2004), Murugan (2005), Vasline et al, (2007), Anbu Selvam and Elangaimannan (2010), Supriyo Chakraborty et al, (2010), Selvam (2012), Gill et al, (2014) and Vijay Kumar et al, (2014) had observed greater dominance variance for this trait. However, additive gene action was also reported by few workers like Rahecha et al, (2006) andIsha Parveen et al, (2012).…”