Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributes
Cotton (Gossypium hirsutum) is a vital fiber and cash crop, but water scarcity significantly impacts its development and production. The drought tolerance of 15 genotypes was evaluated at the seedling stage under three water regimes: control, 40%, and 20% field capacity. Significant variations in s...
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AcademicPres
2025-06-01
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| Series: | Notulae Botanicae Horti Agrobotanici Cluj-Napoca |
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| Online Access: | https://www.notulaebotanicae.ro/index.php/nbha/article/view/14205 |
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| author | Zoha CHAUDHARY Athar MAHMOOD Abdel‑Halim GHAZY Sajid FIAZ Ayesha ARSHAD Muhammad T. CHAUDHARY Muhammad M. JAVAID Kotb A. ATTIA Inzamam UL HAQ |
| author_facet | Zoha CHAUDHARY Athar MAHMOOD Abdel‑Halim GHAZY Sajid FIAZ Ayesha ARSHAD Muhammad T. CHAUDHARY Muhammad M. JAVAID Kotb A. ATTIA Inzamam UL HAQ |
| author_sort | Zoha CHAUDHARY |
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Cotton (Gossypium hirsutum) is a vital fiber and cash crop, but water scarcity significantly impacts its development and production. The drought tolerance of 15 genotypes was evaluated at the seedling stage under three water regimes: control, 40%, and 20% field capacity. Significant variations in sodium ions (Na+) were observed across all morphological and physiological traits. Key traits like fresh root weight, shoot length, total chlorophyll, hydrogen peroxide (H2O2), K+/Na+, and potassium ions (K+) showed strong interactions between drought stress and genotype (D × G). Excised leaf water loss (ELWL) was positively correlated with shoot length (SL) under both control and drought conditions, while negatively associated with fresh root weight. Shoot length had a positive correlation with all attributes except Na+. Fresh root weight was negatively correlated with H2O2 but positively with other traits. Potassium ions were positively associated with SL, fresh root weight, and chlorophyll content. Genotypic correlations showed positive relationships for all biochemical traits except H2O2. Traits like root length, shoot length, ELWL, relative water content, proline, peroxidase (POD), H2O2, and K+/Na+ can differentiate drought-tolerant genotypes. Genotypes RH-622, FH-144, CIM-608, and MNH-886 showed potential for developing drought-resistant cotton cultivars.
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| format | Article |
| id | doaj-art-201dca8eaafd4e8aa2ef23c5aa45ca4a |
| institution | Kabale University |
| issn | 0255-965X 1842-4309 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | AcademicPres |
| record_format | Article |
| series | Notulae Botanicae Horti Agrobotanici Cluj-Napoca |
| spelling | doaj-art-201dca8eaafd4e8aa2ef23c5aa45ca4a2025-08-20T03:31:11ZengAcademicPresNotulae Botanicae Horti Agrobotanici Cluj-Napoca0255-965X1842-43092025-06-0153210.15835/nbha53214205Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributesZoha CHAUDHARY0Athar MAHMOOD1Abdel‑Halim GHAZY2Sajid FIAZ3Ayesha ARSHAD4Muhammad T. CHAUDHARY5Muhammad M. JAVAID6Kotb A. ATTIA7Inzamam UL HAQ8University of Agriculture Faisalabad, Department of Botany, Faisalabad, 38000University of Agriculture Faisalabad, Department of Agronomy, Faisalabad, 38000King Saud University, College of Food and Agricultural Sciences, Plant Production Department, RiyadhThe University of Lahore, Institute of Molecular Biology and Biotechnology, 54590 LahoreUniversity of Agriculture Faisalabad, Department of Botany, Faisalabad, 38000National Agricultural Research Centre, Horticultural Research Institute, IslamabadUniversity of Sargodha, College of Agriculture, Department of Agronomy, Sargodha 40100King Saud University, College of Science, Department of Biochemistry, Riyadh 11451Fujian Agriculture and Forestry University, College of Plant Protection, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Laboratory of Biopesticides and Chemical Biology, MOE, Fuzhou 350002 Cotton (Gossypium hirsutum) is a vital fiber and cash crop, but water scarcity significantly impacts its development and production. The drought tolerance of 15 genotypes was evaluated at the seedling stage under three water regimes: control, 40%, and 20% field capacity. Significant variations in sodium ions (Na+) were observed across all morphological and physiological traits. Key traits like fresh root weight, shoot length, total chlorophyll, hydrogen peroxide (H2O2), K+/Na+, and potassium ions (K+) showed strong interactions between drought stress and genotype (D × G). Excised leaf water loss (ELWL) was positively correlated with shoot length (SL) under both control and drought conditions, while negatively associated with fresh root weight. Shoot length had a positive correlation with all attributes except Na+. Fresh root weight was negatively correlated with H2O2 but positively with other traits. Potassium ions were positively associated with SL, fresh root weight, and chlorophyll content. Genotypic correlations showed positive relationships for all biochemical traits except H2O2. Traits like root length, shoot length, ELWL, relative water content, proline, peroxidase (POD), H2O2, and K+/Na+ can differentiate drought-tolerant genotypes. Genotypes RH-622, FH-144, CIM-608, and MNH-886 showed potential for developing drought-resistant cotton cultivars. https://www.notulaebotanicae.ro/index.php/nbha/article/view/14205allotetraploidbiplot analysisclimate changedrought tolerancefiber cropphysiological characteristics |
| spellingShingle | Zoha CHAUDHARY Athar MAHMOOD Abdel‑Halim GHAZY Sajid FIAZ Ayesha ARSHAD Muhammad T. CHAUDHARY Muhammad M. JAVAID Kotb A. ATTIA Inzamam UL HAQ Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributes Notulae Botanicae Horti Agrobotanici Cluj-Napoca allotetraploid biplot analysis climate change drought tolerance fiber crop physiological characteristics |
| title | Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributes |
| title_full | Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributes |
| title_fullStr | Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributes |
| title_full_unstemmed | Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributes |
| title_short | Assessment of genetic architecture of cotton germplasm for drought tolerance: A focus on morpho-physiological and biochemical attributes |
| title_sort | assessment of genetic architecture of cotton germplasm for drought tolerance a focus on morpho physiological and biochemical attributes |
| topic | allotetraploid biplot analysis climate change drought tolerance fiber crop physiological characteristics |
| url | https://www.notulaebotanicae.ro/index.php/nbha/article/view/14205 |
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