Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditions
Genetic improvement of wheat for drought tolerance can be achieved by developing suitable ideotypes with enhanced yield-response associated with agronomic traits and biochemical markers. The objective of this study was to determine drought response of elite drought tolerant wheat genotypes using agr...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2019-11-01
|
| Series: | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/09064710.2019.1641213 |
| _version_ | 1797684352157483008 |
|---|---|
| author | Sonto Silindile Mkhabela Hussein Shimelis Alfred O. Odindo Jacob Mashilo |
| author_facet | Sonto Silindile Mkhabela Hussein Shimelis Alfred O. Odindo Jacob Mashilo |
| author_sort | Sonto Silindile Mkhabela |
| collection | DOAJ |
| description | Genetic improvement of wheat for drought tolerance can be achieved by developing suitable ideotypes with enhanced yield-response associated with agronomic traits and biochemical markers. The objective of this study was to determine drought response of elite drought tolerant wheat genotypes using agronomic and biochemical traits to select promising lines for breeding. Fourteen wheat genotypes selected from the International Maize and Wheat Improvement Center’s heat and drought tolerance nursery and one standard check variety were evaluated under drought-stressed (DS) and non-stressed (NS) conditions using a randomised complete block design in three replications. Significant (P < 0.05) genotype, drought condition and genotype × drought condition interaction effect were detected for the tested traits suggesting differential response of genotype for selection. Grain yield positively correlated with sucrose (r = 0.58; P < 0.05), fructose (r = 0.52; P < 0.05) and total sugar (r = 0.52; P < 0.05) contents under NS condition and with sucrose (r = 0.80; P < 0.001), total sugar (r = 0.84; P < 0.001) content, proline content (r = 0.74; P < 0.001) and number of grains per spike (r = 0.58; P < 0.05) under DS condition. Genetically unrelated wheat genotypes such as SM04, SM19, SM29, SM32, SM45 and SM97 possessing key agronomic and biochemical traits were selected for cultivar development for drought-stressed environments. |
| first_indexed | 2024-03-12T00:29:30Z |
| format | Article |
| id | doaj.art-b711bfbfaf1c48f78a0ea4d525b66e16 |
| institution | Directory Open Access Journal |
| issn | 0906-4710 1651-1913 |
| language | English |
| last_indexed | 2024-03-12T00:29:30Z |
| publishDate | 2019-11-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| spelling | doaj.art-b711bfbfaf1c48f78a0ea4d525b66e162023-09-15T10:26:25ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132019-11-0169867468910.1080/09064710.2019.16412131641213Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditionsSonto Silindile Mkhabela0Hussein Shimelis1Alfred O. Odindo2Jacob Mashilo3University of KwaZulu-NatalUniversity of KwaZulu-NatalUniversity of KwaZulu-NatalUniversity of KwaZulu-NatalGenetic improvement of wheat for drought tolerance can be achieved by developing suitable ideotypes with enhanced yield-response associated with agronomic traits and biochemical markers. The objective of this study was to determine drought response of elite drought tolerant wheat genotypes using agronomic and biochemical traits to select promising lines for breeding. Fourteen wheat genotypes selected from the International Maize and Wheat Improvement Center’s heat and drought tolerance nursery and one standard check variety were evaluated under drought-stressed (DS) and non-stressed (NS) conditions using a randomised complete block design in three replications. Significant (P < 0.05) genotype, drought condition and genotype × drought condition interaction effect were detected for the tested traits suggesting differential response of genotype for selection. Grain yield positively correlated with sucrose (r = 0.58; P < 0.05), fructose (r = 0.52; P < 0.05) and total sugar (r = 0.52; P < 0.05) contents under NS condition and with sucrose (r = 0.80; P < 0.001), total sugar (r = 0.84; P < 0.001) content, proline content (r = 0.74; P < 0.001) and number of grains per spike (r = 0.58; P < 0.05) under DS condition. Genetically unrelated wheat genotypes such as SM04, SM19, SM29, SM32, SM45 and SM97 possessing key agronomic and biochemical traits were selected for cultivar development for drought-stressed environments.http://dx.doi.org/10.1080/09064710.2019.1641213abiotic stressbread wheatdrought tolerancebiochemical traitsyield-related traits |
| spellingShingle | Sonto Silindile Mkhabela Hussein Shimelis Alfred O. Odindo Jacob Mashilo Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditions Acta Agriculturae Scandinavica. Section B, Soil and Plant Science abiotic stress bread wheat drought tolerance biochemical traits yield-related traits |
| title | Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditions |
| title_full | Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditions |
| title_fullStr | Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditions |
| title_full_unstemmed | Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditions |
| title_short | Response of selected drought tolerant wheat (Triticum aestivum L.) genotypes for agronomic traits and biochemical markers under drought-stressed and non-stressed conditions |
| title_sort | response of selected drought tolerant wheat triticum aestivum l genotypes for agronomic traits and biochemical markers under drought stressed and non stressed conditions |
| topic | abiotic stress bread wheat drought tolerance biochemical traits yield-related traits |
| url | http://dx.doi.org/10.1080/09064710.2019.1641213 |
| work_keys_str_mv | AT sontosilindilemkhabela responseofselecteddroughttolerantwheattriticumaestivumlgenotypesforagronomictraitsandbiochemicalmarkersunderdroughtstressedandnonstressedconditions AT husseinshimelis responseofselecteddroughttolerantwheattriticumaestivumlgenotypesforagronomictraitsandbiochemicalmarkersunderdroughtstressedandnonstressedconditions AT alfredoodindo responseofselecteddroughttolerantwheattriticumaestivumlgenotypesforagronomictraitsandbiochemicalmarkersunderdroughtstressedandnonstressedconditions AT jacobmashilo responseofselecteddroughttolerantwheattriticumaestivumlgenotypesforagronomictraitsandbiochemicalmarkersunderdroughtstressedandnonstressedconditions |