Heterosis, Combining Ability and Components of Genetic Variance in Faba Bean (Vicia faba L.)

Ibrahim, H. M.

doi:10.4197/met.21-1.3

Cited by 23 publications

(31 citation statements)

References 7 publications

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“…Heterosis, expressed as increase in vigor of the F1 hybrid over the better parent results from the combined action and interaction of allelic and interallelic genes. Similar findings were reported by Salama and Salem (2001), Toker (2009) andIbrahim (2010).…”

Section: Estimates Of Heritabilitysupporting

confidence: 92%

“…The results indicated that the magnitude of additive genetic variance (σ 1/2 which was higher than one, indicating that non additive gene action played a major role in the inheritance of these studied traits. Similar findings were reported by El-Hady et al (1998), Salama and Salem (2001), Toker (2009) and Ibrahim (2010). The additive and dominance components of genetic variance is very important in evaluating the potential of any heterotic response inbreeding depression not only reduces auto fertility and hence yield in the absence of pollinators, but also reduces yield through the loss of heterosis.…”

Section: Gene Actionsupporting

confidence: 80%

“…In this direction, six crosses significantly flowered and/or matured earlier than their better parent with negative heterosis values ranging from (Duc, 1997;Stelling, 1997;Schill et al, 1998;Abdelmula et al, 1999;Bond and Crofton, 1999;Filippetti et al, 1999;Abdalla et al, 2001;Attia et al, 2002;Zeid, 2003;Ahmed and Kambal 2005;Darwish et al, 2005;Attia and Salem, 2006; El- Kunkaew et al, 2006;El-Hady et al, 2007;Gasim and Link, 2007;Tantawy et al, 2007;Ghaouti and Link, 2008;Link et al, 2008;Alghamdi, 2009;Ibrahim, 2010).…”

Section: Heterotic Effectsmentioning

confidence: 99%

“…In this respect, different sizes of heterotic effects were obtained by many authors for economic traits in faba bean and desirable heterotic values over better parent for earliness, vegetable and yield components traits (Bond, 1964;Waly, 1982;Mitkees and Hassan, 1983;Kitiki and Demir, 1984;Mahmoud et al, 1984;Waly and Abdel-Aal, 1986;Mahmoud and Al-Ayobi, 1987;Ebmyer, 1988;EIMorsy, 1990;Kaul and Vaid, 1996;Melchinger, 1996;El Hosary et al, 1997;Stelling, 1997;EI-Hady et al, 1998;Schill et al, 1998;Yamani, 1998;Abdelmula et al, 1999;Suso and Moreno, 1999;Bashoot, 2000;Abdalla et al, 2001;Attia et al, 2002;Zeid, 2003;Ahmed and Kambal, 2005;Darwish et al, 2005;Attia and Salem, 2006;ElHady et al, 2006ElHady et al, , 2007Kunkaew et al, 2006;Tantawy et al, 2007;Alghamdi, 2009;Ibrahim, 2010).…”

mentioning

confidence: 99%

“…Furthermore the roles of general combining ability (GCA) and specific combining ability (SCA) in the inheritance of faba bean were studied by several authors (Kaul and Vaid, 1996;El-Keredy et al, 1999;El-Refaey et al, 1999;Attia and Morsy, 2001;Salama and Salem, 2001;Attia et al, 2002;Attia and Salem, 2006;Ibrahim, 2010). GCA values were obtained for number of branches per plant, number of pods per plant, maturity time and 100-seed weight.…”

mentioning

confidence: 99%

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Heterosis and nature of gene action for yield and its components in faba bean (Vicia faba L.)

Obiadalla-Ali¹,

Mohamed²,

Glala³

et al. 2013

J. Plant Breed. Crop Sci.

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Five Egyptian parental genotypes of Faba bean were used for carrying out half diallel design to study heterosis and nature of gene action for earliness, vegetative, yield and yield components traits. Mean squares of genotypes were found to be highly significant for all studied traits. The results showed that the majority of crosses exhibited significant heterosis estimates for better parent for all studied traits. General combining ability (GCA) and specific combining ability (SCA) mean squares were highly significant for all studied traits. The results indicated that the magnitude of additive genetic variance (σ 2 A) were positive and lower than those of non additive (σ 2 D) one for all the studied traits, indicating that non additive gene action played a major role in the inheritance of different traits under study. The broad sense heritability estimates (H 2 b %) were more than their corresponding narrow sense heritability (H 2 n %) for all studied traits. However, estimates of narrow sense heritability were 34.2 and 14.8% for earliness traits and ranged from 15.2 to 29.8% for number of branches per plant and plant height, respectively. Respecting to yield components, the estimates of narrow sense heritability ranged from 8.8 to 70.9% for number of pod per plant and weight of 100 seed (g), respectively. The results showed that the two cultivar, Giza 843 (P 4 ) and Misr 2 (P1) was good general combiner for earliness, yield and yield components, respectively. The cross (P 1 xP 5 ) showed desirable SCA effects and significant heterosis values for earliness, and yield components. While, the two crosses, (P 1 xP 3 ) and (P 3 xP 4 ) exhibited desirable SCA effects for vegetative traits. These promising crosses could be used for breeding programs to produce pure lines.Key words: Faba bean, general combining ability (GCA), specific combining ability (SCA), heterosis, gene action. INRODUCTIONFaba bean (Vicia faba L.) is one of the most important pulse crops in Egypt; it is plays an important role in world agriculture due to the high protein content, its ability to fix atmospheric nitrogen and its capacity to grow and yield well on marginal lands (Alghamdi, 2007; Farag and Afia, 2012). Great efforts have been directed to improve yield level and quality properties in faba bean. In this trend, heterosis and combining ability provide important *Corresponding author. E-mail: naheif@yahoo.com. information for improving seed yield and other economic traits in faba bean. Superiority of hybrids over the better parent for seed yield and its attributes are associated with the magnitude of heterotic effects in important yield attributes, that is, number of branches per plant, pod setting percentage, number of pods per plant, 100-seed weight, shellout percentage and pod filling percentage. These heterotic effects may range from significantly positive to significantly negative for various traits according to genetic makeup of the parents Darwish et al., 2005;El-Hady et al., 2006; Farag and Afia, 2012).

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Section: Estimates Of Heritabilitysupporting

confidence: 92%

Section: Gene Actionsupporting

confidence: 80%