Comprehensive Evaluation and Construction of Drought Resistance Index System in Hulless Barley Seedlings DOI Open Access

Liping Niu,

Le Bo,

Shanhu Chen

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(8), P. 3799 - 3799

Published: April 17, 2025

With global climate change ongoing, the frequency and intensity of extreme weather events have increased annually. Hulless barley (Hordeum vulgare L. var. nudum), a primary crop cultivated in Qinghai–Tibet Plateau mountains, frequently encounters multiple abiotic stresses including low temperature, high salinity, drought. Among these stresses, drought has emerged as critical environmental constraint affecting sustainable agricultural development worldwide. Establishing resistance evaluation system for hulless germplasm during its seedling stages could provide theoretical foundation screening breeding drought-tolerant cultivars to address challenges. This study employed two drought-sensitive (YC85 YC88) (ZY1252 ZY1100) develop an effective protocol barley. Our findings identified several reliable indicators assessing tolerance at stage: fresh mass, chlorophyll fluorescence parameters (Fv/Fm, NPQ, RFD), photosynthetic (E gsw), reactive oxygen species (ROS) levels. The established was subsequently applied three uncharacterized (ZY673, ZY1403, KL14). results classified all drought-sensitive, with ZY1403 exhibiting highest sensitivity. work comprehensive framework Tibetan Furthermore, this provides valuable insights optimizing cultivation practices water resource management strategies, offering guidance adaptation change.

Language: Английский

Comprehensive Evaluation and Construction of Drought Resistance Index System in Hulless Barley Seedlings DOI Open Access

Liping Niu,

Le Bo,

Shanhu Chen

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(8), P. 3799 - 3799

Published: April 17, 2025

With global climate change ongoing, the frequency and intensity of extreme weather events have increased annually. Hulless barley (Hordeum vulgare L. var. nudum), a primary crop cultivated in Qinghai–Tibet Plateau mountains, frequently encounters multiple abiotic stresses including low temperature, high salinity, drought. Among these stresses, drought has emerged as critical environmental constraint affecting sustainable agricultural development worldwide. Establishing resistance evaluation system for hulless germplasm during its seedling stages could provide theoretical foundation screening breeding drought-tolerant cultivars to address challenges. This study employed two drought-sensitive (YC85 YC88) (ZY1252 ZY1100) develop an effective protocol barley. Our findings identified several reliable indicators assessing tolerance at stage: fresh mass, chlorophyll fluorescence parameters (Fv/Fm, NPQ, RFD), photosynthetic (E gsw), reactive oxygen species (ROS) levels. The established was subsequently applied three uncharacterized (ZY673, ZY1403, KL14). results classified all drought-sensitive, with ZY1403 exhibiting highest sensitivity. work comprehensive framework Tibetan Furthermore, this provides valuable insights optimizing cultivation practices water resource management strategies, offering guidance adaptation change.

Language: Английский

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