Combining Ability, Heterosis and Gene Action Estimation by Using Line X Tester Analysis in Bread Wheat (Triticum astivum, L)

El-Gammaal, A. A.; Morad, A. A.

doi:10.21608/jpp.2018.36642

Cited by 3 publications

(4 citation statements)

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“…In this case, it is recommended that an effective selection must start in the later segregating generations F 4 -F 5 when the influence of the non-additive effects (dominance) decreases and the additivity increases. The results from this study for productivity tiller ing capacity are in line with those obtained by other authors (Desale, Mehta, 2013;Mostafa et al, 2014;Kandil et al, 2016;Ahmad et al, 2017;Saeed, Khalil, 2017;El-Gammaal, Morad, 2018;Parveen et al, 2018;Talha et al, 2018;Amin, Towfiq, 2019;Bajaniya et al, 2019;Farooq et al, 2019;Ayoob, 2020;Hammam et al, 2020); for number of spikelets per spike (Mostafa et al, 2014;Kandil et al, 2016;Ahmad et al, 2017;Saeed, Khalil, 2017;Tiwari et al, 2017;Parveen et al, 2018;Talha et al, 2018;Farooq et al, 2019;Ayoob, 2020;Khaled et al, 2020); for kernels weight per spike (Padhar et al, 2013;Mostafa et al, 2014;Kandil et al, 2016;Mandal, Madhuri, 2016;Tiwari et al, 2017;Talha et al, 2018;Amin, Towfiq, 2019, Shamsabadi et al, 2020.…”

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confidence: 92%

Combining ability for quantitative traits related to productivity in durum wheat

Dragov

2022

Vestn. VOGiS

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The present study was to determine the nature of gene action and combining ability of six quantitative traits related to productivity of five varieties and ten hybrid combinations of durum wheat. Five modern durum wheat varieties were used in diallel crosses as parents. The study includes three F1 and two F2 generations. The experiments were done in a randomized block design in three replications during three years. Significant differences between the genotypes in both generations was found for all the traits. The general combining ability and specific combining ability showed reliability in both generations. Obtained results suggests that breeding schemes should include both types of genetic effects in order to improve productivity components. The ratio of variances showed that general combining ability has a greater influence on the inheritance of plant height, spike length and thousand kernels weight. For productivity tillering capacity, number of spikelets per spike and kernels weight per spike, specific combining ability has a great impact in inheritance. For thousand kernels weight a redetermination of the genetic formula was established in both generations. Durum wheat varieties Deni, Superdur and Progres were found to be the best general combinators for studied productivity elements. The most valuable cross combinations were Deni × Superdur, Superdur × Predel and Progres × Predel. Parental wheat varieties and progenies from these crosses can be used for improving productivity components and for increasing yields in durum wheat breeding programs.

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confidence: 92%

Combining ability for quantitative traits related to productivity in durum wheat

Dragov

2022

Vestn. VOGiS

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“…The variance due to line × tester was significant for all traits studied indicating that the five lines did express effective role with the three testers according to their crosses performance (Table 3). These consequences are in arrangement with those reported by Abd El-Aty, (2016), El-Gammaal & Morad (2018), Rajput (2018), El-Gammaal (2019), Abro (2021), Roy et al (2021a), Alhossary (2020), Shah et al (2020) and Fouad et al (2022). For lines, Misr 1 (L4) recorded the earliest line in days to 50% heading by 88.67 days and the lowest line in each of plant height (76.33cm), number of spikes/plant (2.77), grain yield/plant (11.22g) and 1000 grains weight (42.88g) (Table 4).…”

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confidence: 92%

“…Line× tester analysis is one of the most important tools that plant breeders can use in predicting the effects of general combining ability of parents and specific ability combining of crosses for yield and its components and other traits in wheat. General and specific combining ability consider the main tool used by the breeders to select the superior parents and crosses (El-Gammaal & Morad, 2018;Kutlu & Sirel, 2019;Abro et al, 2021). The objectives for this study are to determine the general, specific combining ability and heterosis for yield and its components in bread wheat.…”

Section: Introductionmentioning

confidence: 99%

Line by Tester Analysis to Estimate Combining Ability and Heterosis in Bread Wheat (Triticum aestivum L.)

Fouad

Mahdy

2023

Egypt. J. Agron.

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The two lines, Sids 14 (L3) and Misr 2 (L5) were a good donner for biological yield/plant BY/P in g, no. spikes/plant NS/P and grain yield/plant GY/P in g. Significant positive general combining ability effects estimated for NS/P, GY/P, weight of grains per spike WG/S in g and 1000 grains weight 1000GW in g for line 4 (Misr 1) and line 5 (Misr 2). Sids 12 (T1) was a good donner for BY/P, NS/P, GY/P and 1000GW. Cross L4 × T2 showed significant negative (desirable) specific combining ability for days to heading. Four crosses, L2 × T3, L3 × T1, L3 × T2 and L4 × T1 exhibited significant positive specific combining ability effects for grain yield/plant. For days to heading, cross L3 × T2 showed significant negative heterosis relative to mid-parents and better parent. Six crosses, L3 × T1, L3 × T2, L4 × T1, L4 × T3, L5 × T1 and L5 × T3 showed significant positive heterosis for grain yield/plant over the mid-parents.

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“…Information of general and specific combining abilities influencing yield and its components has become increasingly important for plant breeders to select appropriate parents while developing hybrids (Rasheda et al, 2014). Line x tester analysis is one of the most important tools for predicting the general combining ability (GSA) of parental lines and choosing the appropriate parents and their subsequent F1 hybrids with high specific combining ability (SCA) (Abd-El-Nour et al, 2011;El-Gammaal and Morad 2018;Kutlu and Sirel 2019). The objective of the present study was to identify the good general combining lines, testers and specific combining of crosses for several traits under different levels of nitrogen.…”

Section: Introductionmentioning

confidence: 99%

Line by Tester Analysis for Estimats Combining Ability in Bread Wheat Under Different Levels of Nitrogen Fertilizer

El-Nahas

Mohamed

El-Areed

2021

Journal of Plant Production

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Ten genotypes of bread wheat were crossed in a line x tester mating design. The twenty-one F1's and their parents (seven lines and three testers) were estimated under three levels of nitrogen fertilizer; low (25 kg N/fed), mid (50 kg N/fed) and normal (75 kg N/fed) in three experiments. Each experiments in a randomized complete block design with three replications at the Experimental Farm, Faculty of Agriculture, Menoufia University, Shebin El-Kom, Egypt during 2019/2020. The results cleared that nitrogen fertilizer levels mean squares were significant for all studied traits. A significant difference was found among lines, testers, line x testers and their interaction with nitrogen levels for all studied traits. Analysis of genetic revealed that GCA and SCA variances were significant for all studied traits under different levels of nitrogen fertilizer, indicating the importance of both additive and non-additive components in the inheritance of these traits. However, the hybrids L1 x T1, L2 x T1, L2 x T3, L3 x T2, L4 x T2, L5 x T2, L6 x T2, L7 x T1and L7 x T3were excellent harmonious combiners for specific combining ability effects for grain yield per plant and most of its components under different nitrogen fertilizer levels. The parental lines 1, 4, 6 and 7 proved to have better general combiners for grain yield per plant and most of its components under different levels of nitrogen. Therefore, these genotypes must be taken care of when breeding to tolerate low levels of nitrogen fertilization.

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Combining Ability, Heterosis and Gene Action Estimation by Using Line X Tester Analysis in Bread Wheat (Triticum astivum, L)

Abstract: In order to investigate the combining ability, gene action and heterosis morphological, yield and its components traits in wheat F 1 crosses using line x tester analysis. Experiment was conducted with sixty three genotypes consisting of fifteen lines, L

Cited by 3 publications

References 7 publications

Combining ability for quantitative traits related to productivity in durum wheat

Combining ability for quantitative traits related to productivity in durum wheat

Line by Tester Analysis to Estimate Combining Ability and Heterosis in Bread Wheat (Triticum aestivum L.)

Line by Tester Analysis for Estimats Combining Ability in Bread Wheat Under Different Levels of Nitrogen Fertilizer

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