Combining ability analysis for grain yield and its contributing traits in maize (<i>Zea mays</i> L.) over environments

Bharti, Baudh; Dubey, R. B.; Kumar, Arun; Bind, Harinarayan; Jat, B.S.

doi:10.5958/0975-928x.2017.00158.2

Cited by 5 publications

(6 citation statements)

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“…Similar to the present findings, many scientists reported higher grain yield among maize hybrids compared to parental genotypes [25,[28][29][30]. The parental genotypes, suggesting heterosis for these traits in agreement with the previous reports [31]. Significant variation for heterosis and heterobeltiosis was observed for the studied agronomic and quality traits among crosses indicating genetic divergence to identify promising crosses for breeding.…”

Section: Discussionsupporting

confidence: 92%

“…Similarly, variance due to GCA interaction with an environment lower than variance due to SCA interaction with the environment for all the trait. Similar finding proposed by [25,31]. Maximum genetic advance exhibited by plant height followed by ear height, days to 75 percent brown husk and grain yield.…”

Section: Discussionsupporting

confidence: 87%

“…Whereas all traits except days to 75 percent brown husk were recorded less than 0.50 value, indicating the predominance of non-additive gene action for these characters. The studies in the past confirmed similar results [30,31]. Similarly, variance due to GCA interaction with an environment lower than variance due to SCA interaction with the environment for all the trait.…”

Section: Discussionsupporting

confidence: 79%

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Understanding the genetics of important traits in quality protein maize (Zea maysL.) by Line × Tester analysis

Bharti

Dubey

Kumar

et al. 2020

Preprint

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Maize (Zea mays L.) is among the top ten most valuable crops and livestock products. Maize demand and production are continuously rising. The nutritionally rich quality proteins maize (QPM) has almost two times as much lysine as well as tryptophan, amino acids which then the conventional maize varieties. In this study, genetics of important traits in quality protein maize were determined using a Line by Tester matting design. The 45 hybrids were obtained via Line by Tester crossing of 15 lines and 3 testers. The parents and their hybrids were evaluated under two environments. A significant amount of variation was recorded for most of the traits studied. Parental genotypes L2, L6, T2, L8, L7 and L14, exhibited negative and considerable general combining ability (GCA) effects for days to flowering and maturity. L7 × T2, L13 × T3, L10 × T1, L1 × T1, L9 × T2, L5 × T1, L12 × T2, L11 × T3, L10 × T3, L14 × T1 and L6 × T1 were identified with suitable yield and component traits. Crosses L5 × T1, L3 × T1, L12 × T2, L7 × T3, L1 × T2 and L13 × T1 were identified for quality traits. Heterosis over the mid parent crosses L13 × T1 showed highest negative and significant followed by L6 × T1, L12 × T2, L14 × T2 and L2 × T1 for days to 50 per cent tasselling. A significant correlation for the lysine content was determined between F1 mean and specific combining ability (SCA) effects. Overall, this work provides the useful insights into the genetics of important agronomical and biochemical traits of quality protein maize.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 79%

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Understanding the genetics of important traits in quality protein maize (Zea maysL.) by Line × Tester analysis

Bharti

Dubey

Kumar

et al. 2020

Preprint

Self Cite

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“…Similar kind of observations were made in Maize by Choudhary et al, 2000;Kuselan et al, 2017;and Prakash et al, 2004. For the trait number of kernels per row, the hybrids CBM-DL-322 × UMI1200, and CBM-DL-435 × UMI1230 scored positive sca effect as like Iqbal et al, 2007. The negatively significant sca effect had been scored by CBM-DL-360 × UMI1200, CBM-DL-435 × UMI1230 and CBM-DL-448 × UMI1200 for days to tasseling which could be utilized for earliness to reduce the duration of crop as similar kind of report earlier by Bharti et al, 2017. The hybrids viz., CBM-DL-322 × UMI1200 and CBM-DL-435 × UMI1230 scored positive and significant sca effect for single plant yield and the number of kernels per row which could be used to increase the productivity through a single cross-hybridization programme. Similar kind of report made earlier in maize by Iqbal et al, 2007. The standard heterosis expressed by 28 crosses for all quantitative traits is presented in Table 6.…”

Section: Aswin Et Alsupporting

confidence: 56%

Identification of superior drought tolerant maize hybrids based on combining ability and heterosis with Line × Tester mating design

Aswin

Sudha²,

Senthil³

et al. 2020

EJPB

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Maize (Zea mays) is an important multipurpose cereal crop. Single-cross hybrids play a crucial role in maize cultivation in terms of acreage and production. The combining ability and heterosis are prime criteria for efficacious maize improvement and breeding. This study was focused to access the performances of hybrids, and to estimate heterosis and combining ability for grain yield and yield-related traits. The present study was conducted using 16 parents and 28 F 1 cross combinations of maize hybrids during rabi 2019 to identify the best inbred lines and hybrid combinations. The overall study of gca effects suggested that the parents CBM-DL-448, CBM-DL-435, CBM-DL-360 and UMI1230 were found to be good general combiners for desirable yield-related traits. Among the hybrids, CBM-DL-360 × UMI 1200, CBM-DL-435 × UMI 1230, and CBM-DL-448 × UMI 1230 exhibited positive and significant sca effects and standard heterosis for single plant yield.

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“…Goutam Rana et al, findings of Chinthiya et. al., (2019), Jat et al, (2018 and Purushottam and Kumar (2017). For grain protein content hybrid, HKI PC 1 x HKI PC 8B exhibited the highest SCA effects and followed by hybrid HKI PC 1 x HKI PC 7.…”

Section: Goutam Rana Et Almentioning

confidence: 99%

Combining ability effects and nature of gene action for grain yield and quality parameters in Pop corn (Zea mays var. everta)

Rana

Sharma²,

Kamboj³

et al. 2020

EJPB

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Combining ability analysis for grain yield and its contributing traits in maize (Zea mays L.) over environments

Cited by 5 publications

References 0 publications

Understanding the genetics of important traits in quality protein maize (Zea maysL.) by Line × Tester analysis

Understanding the genetics of important traits in quality protein maize (Zea maysL.) by Line × Tester analysis

Identification of superior drought tolerant maize hybrids based on combining ability and heterosis with Line × Tester mating design

Combining ability effects and nature of gene action for grain yield and quality parameters in Pop corn (Zea mays var. everta)

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