Combining ability studies for yield and quality traits in aromatic genotypes of rice (Oryza Sativa. L.)

Bano, Dilruba A.; Singh, S. N.

doi:10.5958/0975-928x.2019.00044.9

Cited by 15 publications

(19 citation statements)

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“…Therefore, breeding methods based on hybridization could be effective for the improvement of these traits. These results are in general agreement with those obtained by Sedeek et al (2012), Sathya and Jebaraj (2015), Abo-Youssef et al (2017), Malemba et al (2017), Elgamal et al (2018), El-Sayed et al (2018 and Bano and Singh (2019).…”

Section: Analysis Of Variancesupporting

confidence: 93%

Diallel Analysis of Different Rice Genotypes under Water Deficiency Conditions and Assessing Genetic Diversity Using SSR Markers

Sakran

Shamey

Anis

2020

Journal of Plant Production

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A half diallel cross among seven diverse rice genotypes was carried out in 2019 growing season. Parents and their 21 F1 crosses were evaluated under normal (continuous flooding) and water deficit (irrigation every 12 days) conditions during 2020 growing season, to estimate general (GCA) and specific (SCA) combining ability effects as well as identifying type of gene action controlling the inheritance of the studied traits.Both GCA and SCA mean squares were highly significant for all the studied traits under normal and stress conditions. The non-additive gene action played an important role in the inheritance of all the studied traits, except leaf rolling under stress treatment. The parents Sakha 107, NERICA 9 and N22 were the best general combiners for grain yield/plant. The crosses Sakha 107×Giza 177, Sakha 107×Fuknishiki, NERICA 9×Giza 177, NERICA 9×Akihikari, N22 ×IET1444, N22×Fuknishiki and IET1444 × Giza 177 were identified as promising specific combiners for improving grain yield/plant and one or more of its components under both conditions. The genetic diversity among the seven parental genotypes was assessed using ten Simple Sequence Repeats (SSR) markers. A total of 33 alleles were detected ranging from 2 to 5 with an average of 3.3 alleles per locus. The PIC values ranged from 0.32 to 0.69, with an average of 0.51.Genetic distance ranged from 0.24 to 0.92 with an average of 0.63. High genetic diversity was detected among the tested genotypes at the molecular level, hence these genotypes could be exploited to improve water deficit tolerance in rice breeding program.

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Section: Analysis Of Variancesupporting

confidence: 93%

Diallel Analysis of Different Rice Genotypes under Water Deficiency Conditions and Assessing Genetic Diversity Using SSR Markers

Sakran

Shamey

Anis

2020

Journal of Plant Production

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“…The predominance of non-additive gene action was observed for grain yield which was illustrated by the variance of SCA was higher than variance of GCA. This result corresponds with the findings of different scholars which stated the predominance of nonadditive gene action for grain yield, Saidaiah et al (2010), Hasan et al (2013), and Bano and Singh (2019).…”

Section: Analysis Of Variancessupporting

confidence: 92%

Combining ability analysis of yield and yield components in selected rice (Oryza sativa L.) genotypes

Zewdu

2020

Cogent Food & Agriculture

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This study was conducted to analyze the combining ability for yield and yield contributing traits of selected rice genotypes. Eighteen F2 populations developed by half-diallel mating design and seven parental lines were planted in randomized complete block design in three replications. Analysis of variance indicated that genotypes, general combining ability and specific combining ability mean square values were highly significant (p ≤ 0.001) for all measured traits which indicated the genetic diversity of the parents and the importance of both additive and nonadditive gene effects in the inheritance of the measured traits respectively. Parent P2 (WAC 18-WAT 15-3-1) followed by parent P1(WAB 1573-22-B-B-FKR 4-2-WAC 1-TGR 3-WAT9-1) were the best general combiners for days to flowering, number of effective tillers per hill, panicle length, flag leaf length and width, plant height, and grain yield per plant. Hybrid combinations with good mean performance, desirable SCA estimates and involving at least one of the parents with high GCA would be considered for favorable allele combinations. As a result cross combinations involving parent with good GCA (P2), WAC 18-WAT 15-3-1 x SR33701-HB3330-78 (2.54) had the high desirable grain yield followed by crosses, SR33701-HB3330-78 x SR33859-HB3324-93 (2.34), SR33701-HB3330-78 x SR33859-HB3324 ABOUT THE AUTHORThis work is part of masters degree in plant breeding and seed systems at Makerere University. The materials were obtained from Korea-Africa Food and Agriculture Cooperation (KAFACI) Initiative project. The author evaluated the parental lines for their agronomic performance, grain yield and disease resistance. The rosses were made with elite Ugandan materials to determined genetic inheritance of the martials for different targeted traits. After he accomplished his study, currently he is working in the National Rice Research Program of Ethiopia as Rice Breeder.

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“…Ganapati et al (2020) reported the plant height, number of filled grain panicle −1 , number of grain panicle −1 and dominant effects for yield hill −1 , yield tiller −1 and 1000 grain mass have association to yield, governed by additive gene effect. Bano and Singh (2019) showed that both the additive and non-additive genetic variance exhibited importance for expression of days to 50 % flowering, days to maturity, plant height and effective tillers/ plant.…”

Section: Specific Combining Ability (Sca) Ef-fectsmentioning

confidence: 99%

“…The SCA effects of the crosses for yield and its contributing characters indicated that most of the good specific cross combinations for different characters involved parents with either one or both good GCA effects. Bano and Singh (2019) reported that the three specific combiners for seed yield/plant were ' Kasturi Basmati' × 'Pusa-2517-2-51-1' , 'Pusa Sugandh-5' × 'Type-3' and 'Pusa Sugandh-5' × 'Pusa Sugandh-2' . These crosses were good specific combiners for grain yield / plant.…”

Section: Specific Combining Ability (Sca) Ef-fectsmentioning

confidence: 99%

Exploiting heterosis and combining ability in two-line hybrid rice

Gaballah

Ghoneim

Yang³

et al. 2021

Acta Agric. Slov.

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Twenty hybrids were developed from crossing four environmental genic male sterile (EGMS) lines with five testers in line × tester mating design to magnitude of heterosis over better parent for grain yield and contributing traits in rice (Oryza sativa L.). Five hybrids ‘WTSC9059’ × ‘Sakha101’, ‘WTSC9039’ × ‘Sakha102’, ‘WTSC9059’ × ‘Sakha108’, ‘WTSC9039’ × ‘Sakha108’ and ‘WTSC9039’ × ‘Sakha101’ express superior value for number of panicles, fertility percentage, 100-grain mass, grain yield, apparent heterosis and phenotypic acceptance. The top three heterotic combinations identified for grain yield/ha were ‘WTSC9059’ × ‘Sakha101’, ‘WTSC9039’ × ‘Sakha102’ and ‘Longping’ × ‘Sakha105’ which exhibited 100.00, 71.51 and 66.61 % heterobeltiosis, respectively. The lines ‘WTSC9059’ and ‘‘Longping’’ and testers ‘Sakha101’, ‘Sakha102’ and ‘Sakha108’ was found to be good general combiner for most of the characteristics and could be extensively used in future hybrid rice breeding program. The grain yield was correlated highly significant and positive with panicle exertion, panicle mass, fertility percentage and appearance of heterosis, otherwise the negative correlation and significant was found with flag leaf area.

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Combining ability studies for yield and quality traits in aromatic genotypes of rice (Oryza Sativa. L.)

Cited by 15 publications

References 0 publications

Diallel Analysis of Different Rice Genotypes under Water Deficiency Conditions and Assessing Genetic Diversity Using SSR Markers

Diallel Analysis of Different Rice Genotypes under Water Deficiency Conditions and Assessing Genetic Diversity Using SSR Markers

Combining ability analysis of yield and yield components in selected rice (Oryza sativa L.) genotypes

Exploiting heterosis and combining ability in two-line hybrid rice

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