Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus species
Germplasm (44) from 6 wild Abelmoschus species and 4 cultivars from cultivated species [Abelmoschus esculentus (L.) Moench] were evaluated during kharif 2015 and 2016 to assess the genetic variability and character association in yield attributes and YVMV disease. Significant differences among acces...
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| Format: | Article |
| Language: | English |
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Indian Council of Agricultural Research
2019-04-01
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| Series: | The Indian Journal of Agricultural Sciences |
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| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/88868 |
| _version_ | 1828006025994698752 |
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| author | R K YADAV MAHESH BADIGER SUMAN LATA |
| author_facet | R K YADAV MAHESH BADIGER SUMAN LATA |
| author_sort | R K YADAV |
| collection | DOAJ |
| description | Germplasm (44) from 6 wild Abelmoschus species and 4 cultivars from cultivated species [Abelmoschus esculentus (L.) Moench] were evaluated during kharif 2015 and 2016 to assess the genetic variability and character association in yield attributes and YVMV disease. Significant differences among accessions for mean performance with respect to 13 quantitative traits revealed presence of sufficient variation in the experimental material used. Mean Percent Disease Incidence (PDI) YVMV, revealed lowest PDI in A. moschatus (IC-141055) (7.73%) followed by IC90476- 1(8.61%) and IC47092 (11.0%). These wild accessions indicated their scope in future breeding programs for resistance to BYVMV. Estimates of genotypic coefficients of variability (GCV) and phenotypic coefficients of variability (PCV) ranged from 6.15-59.14 and 13.98- 62.13 respectively. Heritability in broad sense (h2), genetic advance (GA) and genetic advance as percentage of mean (GAM) ranged from 19-98%, 0.40-84.20, 5.58- 98% respectively. Further classification revealed high GCV (>20.00%), high heritability (>60.00%) and high GAM (>20.00%) for most of the yield components and PDI of BYVMV, except for first flowering node and stem diameter. Character association study publicized significant positive association and high positive direct effect of fruit weight (0.85), number of fruits per plant (0.532), stem diameter (0.088), plant height (0.069) and fruit diameter (0.046) on fruit yield per plant. Therefore, direct selection based on these combinations of traits help in harnessing their positive direct effects on yield per plant in okra improvement programmes. |
| first_indexed | 2024-04-10T07:50:57Z |
| format | Article |
| id | doaj.art-6fd3344abdd14c9ab71226e01f89dc11 |
| institution | Directory Open Access Journal |
| issn | 0019-5022 2394-3319 |
| language | English |
| last_indexed | 2024-04-10T07:50:57Z |
| publishDate | 2019-04-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-6fd3344abdd14c9ab71226e01f89dc112023-02-23T10:14:44ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192019-04-0189410.56093/ijas.v89i4.88868Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus speciesR K YADAV0MAHESH BADIGER1SUMAN LATA2ICAR-Indian Agricultural Research Institute, New Delhi 110 012, IndiaICAR-Indian Agricultural Research Institute, New Delhi 110 012, IndiaICAR-Indian Agricultural Research Institute, New Delhi 110 012, IndiaGermplasm (44) from 6 wild Abelmoschus species and 4 cultivars from cultivated species [Abelmoschus esculentus (L.) Moench] were evaluated during kharif 2015 and 2016 to assess the genetic variability and character association in yield attributes and YVMV disease. Significant differences among accessions for mean performance with respect to 13 quantitative traits revealed presence of sufficient variation in the experimental material used. Mean Percent Disease Incidence (PDI) YVMV, revealed lowest PDI in A. moschatus (IC-141055) (7.73%) followed by IC90476- 1(8.61%) and IC47092 (11.0%). These wild accessions indicated their scope in future breeding programs for resistance to BYVMV. Estimates of genotypic coefficients of variability (GCV) and phenotypic coefficients of variability (PCV) ranged from 6.15-59.14 and 13.98- 62.13 respectively. Heritability in broad sense (h2), genetic advance (GA) and genetic advance as percentage of mean (GAM) ranged from 19-98%, 0.40-84.20, 5.58- 98% respectively. Further classification revealed high GCV (>20.00%), high heritability (>60.00%) and high GAM (>20.00%) for most of the yield components and PDI of BYVMV, except for first flowering node and stem diameter. Character association study publicized significant positive association and high positive direct effect of fruit weight (0.85), number of fruits per plant (0.532), stem diameter (0.088), plant height (0.069) and fruit diameter (0.046) on fruit yield per plant. Therefore, direct selection based on these combinations of traits help in harnessing their positive direct effects on yield per plant in okra improvement programmes.https://epubs.icar.org.in/index.php/IJAgS/article/view/88868AbelmoschusCorrelation coefficientGenetic advanceGenetic variabilityHeritabilityPath coefficient |
| spellingShingle | R K YADAV MAHESH BADIGER SUMAN LATA Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus species The Indian Journal of Agricultural Sciences Abelmoschus Correlation coefficient Genetic advance Genetic variability Heritability Path coefficient |
| title | Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus species |
| title_full | Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus species |
| title_fullStr | Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus species |
| title_full_unstemmed | Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus species |
| title_short | Studies of genetic variability and association of yield traits and YVMV disease in Abelmoschus species |
| title_sort | studies of genetic variability and association of yield traits and yvmv disease in abelmoschus species |
| topic | Abelmoschus Correlation coefficient Genetic advance Genetic variability Heritability Path coefficient |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/88868 |
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