Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics
High temperature tolerance is an important component of adaptation to arid and semiarid cropping environment in chili pepper. Two experiments were carried out to study the genetic variability among chili pepper for heat tolerance and morphophysiological traits and to estimate heritability and geneti...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Hindawi Publishing Corporation
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37850/ http://psasir.upm.edu.my/id/eprint/37850/1/37850.pdf |
| _version_ | 1848848717020397568 |
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| author | Usman, Magaji G. Yusop, Mohd Rafii Ismail, Mohd Razi Abdul Malek, Mohammad Abdul Latif, Mohammad |
| author_facet | Usman, Magaji G. Yusop, Mohd Rafii Ismail, Mohd Razi Abdul Malek, Mohammad Abdul Latif, Mohammad |
| author_sort | Usman, Magaji G. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | High temperature tolerance is an important component of adaptation to arid and semiarid cropping environment in chili pepper. Two experiments were carried out to study the genetic variability among chili pepper for heat tolerance and morphophysiological traits and to estimate heritability and genetic advance expected from selection. There was a highly significant variation among the genotypes in response to high temperature (CMT), photosynthesis rate, plant height, disease incidence, fruit length, fruit weight, number of fruits, and yield per plant. At 5% selection intensity, high genetic advance as percent of the mean (>20%) was observed for CMT, photosynthesis rate, fruit length, fruit weight, number of fruits, and yield per plant. Similarly, high heritability (>60%) was also observed indicating the substantial effect of additive gene more than the environmental effect. Yield per plant showed strong to moderately positive correlations (r = 0.23–0.56) at phenotypic level while at genotypic level correlation coefficient ranged from 0.16 to 0.72 for CMT, plant height, fruit length, and number of fruits. Cluster analysis revealed eight groups and Group VIII recorded the highest CMT and yield. Group IV recorded 13 genotypes while Groups II, VII, and VIII recorded one each. The results showed that the availability of genetic variance could be useful for exploitation through selection for further breeding purposes. |
| first_indexed | 2025-11-15T09:38:56Z |
| format | Article |
| id | upm-37850 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:38:56Z |
| publishDate | 2014 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-378502016-04-21T02:02:56Z http://psasir.upm.edu.my/id/eprint/37850/ Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics Usman, Magaji G. Yusop, Mohd Rafii Ismail, Mohd Razi Abdul Malek, Mohammad Abdul Latif, Mohammad High temperature tolerance is an important component of adaptation to arid and semiarid cropping environment in chili pepper. Two experiments were carried out to study the genetic variability among chili pepper for heat tolerance and morphophysiological traits and to estimate heritability and genetic advance expected from selection. There was a highly significant variation among the genotypes in response to high temperature (CMT), photosynthesis rate, plant height, disease incidence, fruit length, fruit weight, number of fruits, and yield per plant. At 5% selection intensity, high genetic advance as percent of the mean (>20%) was observed for CMT, photosynthesis rate, fruit length, fruit weight, number of fruits, and yield per plant. Similarly, high heritability (>60%) was also observed indicating the substantial effect of additive gene more than the environmental effect. Yield per plant showed strong to moderately positive correlations (r = 0.23–0.56) at phenotypic level while at genotypic level correlation coefficient ranged from 0.16 to 0.72 for CMT, plant height, fruit length, and number of fruits. Cluster analysis revealed eight groups and Group VIII recorded the highest CMT and yield. Group IV recorded 13 genotypes while Groups II, VII, and VIII recorded one each. The results showed that the availability of genetic variance could be useful for exploitation through selection for further breeding purposes. Hindawi Publishing Corporation 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37850/1/37850.pdf Usman, Magaji G. and Yusop, Mohd Rafii and Ismail, Mohd Razi and Abdul Malek, Mohammad and Abdul Latif, Mohammad (2014) Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics. The Scientific World Journal, 2014. art. no. 308042. pp. 1-14. ISSN 2356-6140; ESSN: 1537-744X http://www.hindawi.com/journals/tswj/2014/308042/abs/ 10.1155/2014/308042 |
| spellingShingle | Usman, Magaji G. Yusop, Mohd Rafii Ismail, Mohd Razi Abdul Malek, Mohammad Abdul Latif, Mohammad Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics |
| title | Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics |
| title_full | Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics |
| title_fullStr | Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics |
| title_full_unstemmed | Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics |
| title_short | Heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics |
| title_sort | heritability and genetic advance among chili pepper genotypes for heat tolerance and morphophysiological characteristics |
| url | http://psasir.upm.edu.my/id/eprint/37850/ http://psasir.upm.edu.my/id/eprint/37850/ http://psasir.upm.edu.my/id/eprint/37850/ http://psasir.upm.edu.my/id/eprint/37850/1/37850.pdf |