Academic Journal
Dissecting wheat above-ground architecture for enhanced water use efficiency and grain yield in the subtropics
| العنوان: | Dissecting wheat above-ground architecture for enhanced water use efficiency and grain yield in the subtropics |
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| المؤلفون: | Sadia Hakeem, Zulfiqar Ali, Muhammad Abu Bakar Saddique, Muhammad Habib-ur-Rahman, Martin Wiehle |
| المصدر: | Botanical Studies, Vol 65, Iss 1, Pp 1-12 (2024) |
| بيانات النشر: | SpringerOpen |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Climate change, Drought, Heat stress, Leaf morphologys, Triticale, Triticum durum, Botany, QK1-989 |
| الوصف: | Background Growing wheat under climate change scenarios challenges, scientists to develop drought and heat-tolerant genotypes. The adaptive traits should therefore be explored and engineered for this purpose. Thus, this study aimed to dissect surface traits and optimizing the leaf architecture to enhance water use efficiency (WUE) and grain yield. Twenty-six wheat genotypes were assessed for five novel leaf traits (NLTs: leaf prickle hairs, groove type, rolling, angle and wettability) under normal, drought and heat conditions following triplicated factorial randomized complete block design (RCBD). The data for NLTs, physiological traits (stomatal conductance, WUE, transpiration, and photosynthesis), and standard morphological and yield traits were recorded. Leaves were sampled at the stem elongation stage (Zadoks 34) to measure the leaf water content (%), contact angle, and to obtain pictures through scanning electron microscopy (SEM). The air moisture harvesting efficiency was evaluated for five selected genotypes. The ideotype concept was applied to evaluate the best-performing genotypes. Results The correlation analysis indicated that long leaf prickle hairs (> 100 μm), short stomatal aperture and density (40–60 mm− 2), inward to spiral leaf rolling, medium leaf indentation, low contact angle hysteresis (< 10°), and cuticular wax were positively associated with WUE. This, in turn, was significantly correlated to grain yield. Thus, the genotypes (E-1) with these traits and alternate leaf wettability had maximum grain yield (502 g m− 2) and WUE supported with high photosynthesis rate, and relative water content (94 and 75% under normal and stress conditions, respectively). However, the genotype (1-hooded) with dense leaf hairs on edges but droopy leaves, spiral leaf rolling, and lighter groove, also performed better in terms of grain yield (450 g m− 2) under heat stress conditions by maintaining high photosynthesis and WUE with low stomatal conductance and transpiration rate. Conclusion The SEM ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1999-3110 |
| Relation: | https://doi.org/10.1186/s40529-024-00419-x; https://doaj.org/toc/1999-3110; https://doaj.org/article/9e9a0f388eb34b4abe501e65aabdbc40 |
| DOI: | 10.1186/s40529-024-00419-x |
| الاتاحة: | https://doi.org/10.1186/s40529-024-00419-x https://doaj.org/article/9e9a0f388eb34b4abe501e65aabdbc40 |
| رقم الانضمام: | edsbas.68D44B6C |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 19993110 |
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| DOI: | 10.1186/s40529-024-00419-x |