Diallel cross analysis in durum wheat (Triticum durum Desf.): identification of best parents for some kernel physical features

Topal, Ali; Aydın, Cevat; Akgün, Necdet; Babaoğlu, Mehmet

doi:10.1016/j.fcr.2003.08.015

Cited by 54 publications

(48 citation statements)

References 11 publications

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“…It was observed especially for 1,000-grain weight and grain weight per ear. In experiments conducted in Triticum durum, Topal et al (2004) also found larger variances for GCA than SCA for 1,000 kernel weight. Perenzin et al (1998) in experiments with F 1 hybrids of bread wheat found significant SCA effects for agronomical traits but no statistically significant SCA effects were detected for quality traits.…”

Section: Discussionmentioning

confidence: 83%

Relationship between phenotypic and genetic diversity of parental genotypes and the specific combining ability and heterosis effects in wheat (Triticum aestivum L.)

et al. 2008

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The purpose of the study was to evaluate the relationship between the genetic distances (GD) and phenotypic distances (PD) of parents and the specific combining ability (SCA) and heterosis effects. The experiment comprised 18 parental genotypes of wheat (Triticum aestivum L.) and 76 F 2 hybrids, obtained after crossing in a line 9 tester scheme. Parents and hybrids were examined in a field experiment conducted in a block design with three replications. SCA as well as mid-parent heterosis effects were estimated for selected morphological and technological traits. PDs and GDs were investigated between pairs of parental genotypes. GD between parental genotypes was evaluated by using randomly amplified polymorphic DNA markers. Heterosis was observed in all hybrids, and protein content exhibited the highest heterosis among the seven examined traits. The relationship between PD and GD as well as the SCA and mid-parent heterosis effects were evaluated using correlation coefficient. The correlation between PD, SCA and heterosis were low and not significant for the examined traits, whereas the correlation between SCA, heterosis and GDs were significant for protein content and rheological properties. The results indicate that GDs between parents can be used to predict performance of hybrids for selected technological traits.

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Section: Discussionmentioning

confidence: 83%

Relationship between phenotypic and genetic diversity of parental genotypes and the specific combining ability and heterosis effects in wheat (Triticum aestivum L.)

et al. 2008

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“…As such, developing high yielding cultivars which show plasticity is vital since they can maintain yield in water limited environments and at the same time take advantage of excess moisture during wet years [18]. These physiological traits influence yield through additive gene action [19].…”

Section: Drought Stress 21 the Concept Of Physiological Breeding Andmentioning

confidence: 99%

Chickpea Abiotic Stresses: Combating Drought, Heat and Cold

Kaloki¹,

Devasirvatham²,

Tan³

2019

Abiotic and Biotic Stress in Plants

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Chickpea is an important legume providing dietary proteins to both humans and animals. It also ameliorates soil nitrogen through biological nitrogen fixation. Drought, heat and cold are important factors among abiotic stresses limiting production in chickpea. Identification, validation and integration of agronomic, physiological and biochemical traits into breeding programs could lead to increased rates of genetic gain and the development of better adapted cultivars to abiotic stress conditions. This chapter illustrates the effects of stresses on chickpea growth and development. It also reviews the various traits and their relationship with grain yield under stress and proposes recommendation for future breeding.

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“…With predominance of σ 2 GCA over σ 2 SCA , early generation selection become relatively more eff ective and superior hybrids can be identifi ed and selected mainly on the basis of their prediction from GCA eff ects. Predominance of σ 2 GCA over σ 2 SCA has been reported for durum wheat (Widner and Lebsock, 1973;Topal et al, 2004), suggesting that eff ective selection of promising hybrids could be performed effi ciently based on GCA eff ects. In contrast, some studies reported the importance of specifi c combing ability (SCA) over GCA eff ects (Sanjeev et al, 2005;Singh et al, 2007).…”

Section: Researchmentioning

confidence: 99%

Hybrid Breeding in Durum Wheat: Heterosis and Combining Ability

et al. 2010

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Hybrid breeding facilitates a maximum exploitation of heterosis. The objectives of our research were to (i) examine the magnitude of heterosis over the mid‐ and better parent for yield, yield components, and quality traits in Central European spring durum wheat and (ii) investigate the efficiency of parental selection based on mid‐parent value or general combining ability effects. Sixteen inbred lines and 40 incomplete factorial crosses were field‐evaluated for eight agronomic traits at 10 environments in Germany. For grain yield, the hybrids yielded on average 10% higher than the mid‐parent performance, and the maximum superiority was 22%. The significantly positive contrast between inbreeding depression and mid‐parent heterosis for grain yield indicated the presence of positive additive x additive epistatic interactions. Furthermore, the best hybrid outperformed the best line variety by 1.01 Mg ha−1 We conclude that there is a potential for hybrid breeding in durum wheat.

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Diallel cross analysis in durum wheat (Triticum durum Desf.): identification of best parents for some kernel physical features

Cited by 54 publications

References 11 publications

Relationship between phenotypic and genetic diversity of parental genotypes and the specific combining ability and heterosis effects in wheat (Triticum aestivum L.)

Relationship between phenotypic and genetic diversity of parental genotypes and the specific combining ability and heterosis effects in wheat (Triticum aestivum L.)

Chickpea Abiotic Stresses: Combating Drought, Heat and Cold

Hybrid Breeding in Durum Wheat: Heterosis and Combining Ability

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