Exploring genetic variability and association in QPM maize (Zea mays) inbred lines
Variability and association studies help to assess the variation among the genotypes and interactions between grain yield and its component traits for enhancing the usefulness of selection. In view of this, the present experiment was conducted at Maize research farm TCA, Dholi, DRPCAU, Pusa, Sam...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2023-09-01
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| Series: | Electronic Journal of Plant Breeding |
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| Online Access: | https://ejplantbreeding.org/index.php/EJPB/article/view/4870 |
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| author | Anvesh Ellandula1 , Ajay Kumar*1 , Satish Kumar Singh2 , Asish Narayan3 , Uttej Karla4 and U.S. Sree Vathsa Sagar5 |
| author_facet | Anvesh Ellandula1 , Ajay Kumar*1 , Satish Kumar Singh2 , Asish Narayan3 , Uttej Karla4 and U.S. Sree Vathsa Sagar5 |
| author_sort | Anvesh Ellandula1 , Ajay Kumar*1 , Satish Kumar Singh2 , Asish Narayan3 , Uttej Karla4 and U.S. Sree Vathsa Sagar5 |
| collection | DOAJ |
| description | Variability and association studies help to assess the variation among the genotypes and interactions between grain
yield and its component traits for enhancing the usefulness of selection. In view of this, the present experiment was
conducted at Maize research farm TCA, Dholi, DRPCAU, Pusa, Samastipur, Bihar using 25 inbred lines of maize for
various traits to determine the extent of variability and association between these lines for different characteristics.
Traits including plant height, ear height, ear length, ear girth, number of kernels per row, harvest index, tryptophan
content and lysine content, exhibited high heritability and genetic advance as percentage of the mean. Grain yield
showed significant positive associations with ear length, ear girth, number of kernel rows per ear, number of kernels
per row and harvest index while it exhibited negative association with plant height, ear height, days to 75% brown husk,
protein, lysine, and tryptophan content. Furthermore, certain traits, such as ear length, ear girth, number of kernel rows
per ear, number of kernels per row, harvest index, days to 50% silking, and ear height, had a direct positive effect on
grain yield. Therefore, selecting these traits directly would be desirable for future hybridization endeavors. |
| first_indexed | 2024-03-11T18:51:45Z |
| format | Article |
| id | doaj.art-822a43733c77467691be5ba2ca878940 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-03-11T18:51:45Z |
| publishDate | 2023-09-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-822a43733c77467691be5ba2ca8789402023-10-11T10:06:41ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2023-09-011431222 1229https://doi.org/10.37992/2023.1403.127Exploring genetic variability and association in QPM maize (Zea mays) inbred linesAnvesh Ellandula1 , Ajay Kumar*1 , Satish Kumar Singh2 , Asish Narayan3 , Uttej Karla4 and U.S. Sree Vathsa Sagar501 Department of Genetics and Plant Breeding, DRPCAU, Pusa, Samastipur, Bihar – 848125 2 Department of Genetics and Plant Breeding, DRPCAU, Pusa, Samastipur, Bihar – 848125 3 Department of Genetics and Plant Breeding, DRPCAU, Pusa, Samastipur, Bihar – 848125 4 Department of Genetics and Plant Breeding, MPUAT, Udaipur, Rajasthan. 5 Department of Genetics and Plant Breeding, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore. *E-Mail : drajaymuz@rediffgmail.comVariability and association studies help to assess the variation among the genotypes and interactions between grain yield and its component traits for enhancing the usefulness of selection. In view of this, the present experiment was conducted at Maize research farm TCA, Dholi, DRPCAU, Pusa, Samastipur, Bihar using 25 inbred lines of maize for various traits to determine the extent of variability and association between these lines for different characteristics. Traits including plant height, ear height, ear length, ear girth, number of kernels per row, harvest index, tryptophan content and lysine content, exhibited high heritability and genetic advance as percentage of the mean. Grain yield showed significant positive associations with ear length, ear girth, number of kernel rows per ear, number of kernels per row and harvest index while it exhibited negative association with plant height, ear height, days to 75% brown husk, protein, lysine, and tryptophan content. Furthermore, certain traits, such as ear length, ear girth, number of kernel rows per ear, number of kernels per row, harvest index, days to 50% silking, and ear height, had a direct positive effect on grain yield. Therefore, selecting these traits directly would be desirable for future hybridization endeavors.https://ejplantbreeding.org/index.php/EJPB/article/view/4870associationqpm maizedirect & indirect effectspcvgcv |
| spellingShingle | Anvesh Ellandula1 , Ajay Kumar*1 , Satish Kumar Singh2 , Asish Narayan3 , Uttej Karla4 and U.S. Sree Vathsa Sagar5 Exploring genetic variability and association in QPM maize (Zea mays) inbred lines Electronic Journal of Plant Breeding association qpm maize direct & indirect effects pcv gcv |
| title | Exploring genetic variability and association in QPM maize (Zea mays) inbred lines |
| title_full | Exploring genetic variability and association in QPM maize (Zea mays) inbred lines |
| title_fullStr | Exploring genetic variability and association in QPM maize (Zea mays) inbred lines |
| title_full_unstemmed | Exploring genetic variability and association in QPM maize (Zea mays) inbred lines |
| title_short | Exploring genetic variability and association in QPM maize (Zea mays) inbred lines |
| title_sort | exploring genetic variability and association in qpm maize zea mays inbred lines |
| topic | association qpm maize direct & indirect effects pcv gcv |
| url | https://ejplantbreeding.org/index.php/EJPB/article/view/4870 |
| work_keys_str_mv | AT anveshellandula1ajaykumar1satishkumarsingh2asishnarayan3uttejkarla4andussreevathsasagar5 exploringgeneticvariabilityandassociationinqpmmaizezeamaysinbredlines |