Constructing and comparing selection indices for early growth traits in Saccharum spontaneum
Saccharum spontaneum is the major donor of important traits like vigour, hardiness and ratooning potential to modern sugarcane cultivars. Identifying S. spontaneum clones with high early vigour and tillering ability is essential to include them in hybridization program. Forty three Saccharum spont...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2022-03-01
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| Series: | Electronic Journal of Plant Breeding |
| Subjects: | |
| Online Access: | https://www.ejplantbreeding.org/index.php/EJPB/article/view/3952 |
| _version_ | 1827973372092350464 |
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| author | T. Lakshmi Pathy*, V. Vinu, Adhini S. Pazhany and S. Karthigeyan |
| author_facet | T. Lakshmi Pathy*, V. Vinu, Adhini S. Pazhany and S. Karthigeyan |
| author_sort | T. Lakshmi Pathy*, V. Vinu, Adhini S. Pazhany and S. Karthigeyan |
| collection | DOAJ |
| description | Saccharum spontaneum is the major donor of important traits like vigour, hardiness and ratooning potential to modern
sugarcane cultivars. Identifying S. spontaneum clones with high early vigour and tillering ability is essential to include
them in hybridization program. Forty three Saccharum spontaneum accessions were evaluated for number of tillers
per clump, stalk length, stalk diameter, number of leaves on the main stem, leaf length and leaf lamina width at 90
days after planting. Variance components for these traits indicated high heritability coupled with genetic advance for
leaf width and stalk length indicating the preponderance of additive gene action for these traits. The comprehensive
index Ci value, Smith-Hazel’s selection index (SHI) and rank sums of all the traits indicated six clones viz., IND 99-848,
IND 99-881, IND 99-849, IND 99-850, IND 99-984 and IND 99-847 were superior clones and can be utilised in pre
breeding programmes as potential donors in identification of bioenergy canes. Among the methods studied, DTOPSIS
was comparatively effective in selecting the genotypes. |
| first_indexed | 2024-04-09T19:34:53Z |
| format | Article |
| id | doaj.art-ba46049daae7411f8a5410b38f8e54f3 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-04-09T19:34:53Z |
| publishDate | 2022-03-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-ba46049daae7411f8a5410b38f8e54f32023-04-04T13:53:59ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2022-03-0113111010.37992/2022.1301.005Constructing and comparing selection indices for early growth traits in Saccharum spontaneumT. Lakshmi Pathy*, V. Vinu, Adhini S. Pazhany and S. Karthigeyan0ICAR-Sugarcane Breeding Institute, Coimbatore, India *E-Mail: pathy4u76@gmail.comSaccharum spontaneum is the major donor of important traits like vigour, hardiness and ratooning potential to modern sugarcane cultivars. Identifying S. spontaneum clones with high early vigour and tillering ability is essential to include them in hybridization program. Forty three Saccharum spontaneum accessions were evaluated for number of tillers per clump, stalk length, stalk diameter, number of leaves on the main stem, leaf length and leaf lamina width at 90 days after planting. Variance components for these traits indicated high heritability coupled with genetic advance for leaf width and stalk length indicating the preponderance of additive gene action for these traits. The comprehensive index Ci value, Smith-Hazel’s selection index (SHI) and rank sums of all the traits indicated six clones viz., IND 99-848, IND 99-881, IND 99-849, IND 99-850, IND 99-984 and IND 99-847 were superior clones and can be utilised in pre breeding programmes as potential donors in identification of bioenergy canes. Among the methods studied, DTOPSIS was comparatively effective in selecting the genotypes.https://www.ejplantbreeding.org/index.php/EJPB/article/view/3952comprehensive indexsaccharum spontaneumearly vigourrank sumssmith hazel selection index |
| spellingShingle | T. Lakshmi Pathy*, V. Vinu, Adhini S. Pazhany and S. Karthigeyan Constructing and comparing selection indices for early growth traits in Saccharum spontaneum Electronic Journal of Plant Breeding comprehensive index saccharum spontaneum early vigour rank sums smith hazel selection index |
| title | Constructing and comparing selection indices for early growth traits in Saccharum spontaneum |
| title_full | Constructing and comparing selection indices for early growth traits in Saccharum spontaneum |
| title_fullStr | Constructing and comparing selection indices for early growth traits in Saccharum spontaneum |
| title_full_unstemmed | Constructing and comparing selection indices for early growth traits in Saccharum spontaneum |
| title_short | Constructing and comparing selection indices for early growth traits in Saccharum spontaneum |
| title_sort | constructing and comparing selection indices for early growth traits in saccharum spontaneum |
| topic | comprehensive index saccharum spontaneum early vigour rank sums smith hazel selection index |
| url | https://www.ejplantbreeding.org/index.php/EJPB/article/view/3952 |
| work_keys_str_mv | AT tlakshmipathyvvinuadhinispazhanyandskarthigeyan constructingandcomparingselectionindicesforearlygrowthtraitsinsaccharumspontaneum |