Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.)
In order to evaluate the amount of heritability for desirable agronomic characteristics and the genetic progress associated with grain yield of durum wheat (Triticum durum Desf.), a split plot experiment was carried out with four replications during three cropping seasons (2009-2012). Three sowing d...
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| Format: | Article |
| Language: | English |
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University of Ljubljana Press (Založba Univerze v Ljubljani)
2017-09-01
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| Series: | Acta Agriculturae Slovenica |
| Subjects: | |
| Online Access: | https://journals.uni-lj.si/aas/article/view/12734 |
| _version_ | 1826532283972059136 |
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| author | HASSAN NIKKHAHKOUCHAKSARAEI Hamlet Martirosyan |
| author_facet | HASSAN NIKKHAHKOUCHAKSARAEI Hamlet Martirosyan |
| author_sort | HASSAN NIKKHAHKOUCHAKSARAEI |
| collection | DOAJ |
| description | In order to evaluate the amount of heritability for desirable agronomic characteristics and the genetic progress associated with grain yield of durum wheat (Triticum durum Desf.), a split plot experiment was carried out with four replications during three cropping seasons (2009-2012). Three sowing dates (as environmental factor) and six durum wheat varieties (as genotypic factor) were considered as main and sub factors respectively. Analysis of variance showed interaction effects between genotypes and environments in days to ripening, plant height, spike length, number of grains per spike, number of spikes per unit area, grain mass and grain yield. The grain yield showed the highest positive correlation with number of grains per spike also grain mass (91 % and 85 %, respectively). A relatively high heritability of these traits (82.1 % and 82.2 %, respectively) suggests that their genetic improvement is possible. The maximum genetic gain (19.6 %) was observed for grain mass, indicating this trait should be a very important indicator for durum wheat breeders, although the climatic effects should not be ignored. |
| first_indexed | 2024-03-12T04:51:39Z |
| format | Article |
| id | doaj.art-3b6120ff4b144591b9e65ce50b16a2c2 |
| institution | Directory Open Access Journal |
| issn | 1854-1941 |
| language | English |
| last_indexed | 2025-03-14T01:48:47Z |
| publishDate | 2017-09-01 |
| publisher | University of Ljubljana Press (Založba Univerze v Ljubljani) |
| record_format | Article |
| series | Acta Agriculturae Slovenica |
| spelling | doaj.art-3b6120ff4b144591b9e65ce50b16a2c22025-03-12T12:21:39ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412017-09-01109235736210.14720/aas.2017.109.2.1919126Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.)HASSAN NIKKHAHKOUCHAKSARAEI0Hamlet Martirosyan1Department of Agronomy and Plant Breeding, Qaemshahr Branch, Islamic Azad University, Qaemshahr, IranDepartment of Plant Cultivation, Armenian National Agrarian University, Yerevan, ArmeniaIn order to evaluate the amount of heritability for desirable agronomic characteristics and the genetic progress associated with grain yield of durum wheat (Triticum durum Desf.), a split plot experiment was carried out with four replications during three cropping seasons (2009-2012). Three sowing dates (as environmental factor) and six durum wheat varieties (as genotypic factor) were considered as main and sub factors respectively. Analysis of variance showed interaction effects between genotypes and environments in days to ripening, plant height, spike length, number of grains per spike, number of spikes per unit area, grain mass and grain yield. The grain yield showed the highest positive correlation with number of grains per spike also grain mass (91 % and 85 %, respectively). A relatively high heritability of these traits (82.1 % and 82.2 %, respectively) suggests that their genetic improvement is possible. The maximum genetic gain (19.6 %) was observed for grain mass, indicating this trait should be a very important indicator for durum wheat breeders, although the climatic effects should not be ignored.https://journals.uni-lj.si/aas/article/view/12734durum wheatgrain yieldplant geneticsyield components |
| spellingShingle | HASSAN NIKKHAHKOUCHAKSARAEI Hamlet Martirosyan Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.) Acta Agriculturae Slovenica durum wheat grain yield plant genetics yield components |
| title | Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.) |
| title_full | Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.) |
| title_fullStr | Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.) |
| title_full_unstemmed | Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.) |
| title_short | Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.) |
| title_sort | assessment of heritability and genetic advance for agronomic traits in durum wheat triticum durum desf |
| topic | durum wheat grain yield plant genetics yield components |
| url | https://journals.uni-lj.si/aas/article/view/12734 |
| work_keys_str_mv | AT hassannikkhahkouchaksaraei assessmentofheritabilityandgeneticadvanceforagronomictraitsindurumwheattriticumdurumdesf AT hamletmartirosyan assessmentofheritabilityandgeneticadvanceforagronomictraitsindurumwheattriticumdurumdesf |