Root Morphological and Physiological Traits, Rhizosphere Biological Activity, and Mycorrhizal Colonization of 14 Winter Wheat Varieties Released in Chile Between 1965 and 2020

Paz-Vidal, Paula; Castillo-Rosales, Dalma; López, María Dolores; Tejos, Iván Matus; Noriega, Felipe; Schoebitz, Mauricio

doi:10.1007/s42729-023-01409-x

J Soil Sci Plant Nutr

2023

DOI: 10.1007/s42729-023-01409-x

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Root Morphological and Physiological Traits, Rhizosphere Biological Activity, and Mycorrhizal Colonization of 14 Winter Wheat Varieties Released in Chile Between 1965 and 2020

Paula Paz-Vidal¹,

Dalma Castillo-Rosales²,

María Dolores López³

et al.

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2024

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Genotypic Variability in Root Morphology in a Diverse Wheat Genotypes Under Drought and Low Phosphorus Stress

Li,

Chen,

et al. 2024

Plants

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Screening genotypes with optimal root traits presents a promising breeding strategy for enhancing adaptability to abiotic stresses and improving resource use efficiency. This study evaluated root traits of 100 winter wheat genotypes under four treatments: control (C), low phosphorus (LP), PEG-induced drought (D), and a combination of LP and drought (DLP), using a semi-hydroponic phenotyping platform. Significant variations in root traits were observed 65 days after transplanting, with over 80% of traits being significantly affected by drought, phosphorus, or their interactions. Biomass and phosphorus content decreased under LP and drought, while root length and diameter in deeper layers increased, especially under drought stress. Combined stress led to the most severe reductions in biomass, P-content, and leaf number. Phosphorus acquisition efficiency was positively correlated with root length but inversely related to stress tolerance. High heritability traits, such as root number, root length, maximum root depth, leaf number, and biomass, hold potential for breeding programs focused on environmental adaptation, resource efficiency, and yield improvement. The substantial genotypic variation in root morphology under stress conditions highlights the potential for breeding stress-resilient wheat genotypes. This finding lays a foundation for wheat-breeding initiatives aimed at developing genotypes better suited to prevailing environmental conditions.

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Genotypic Variability in Root Morphology in a Diverse Wheat Genotypes Under Drought and Low Phosphorus Stress

Li,

Chen,

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

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Root Morphological and Physiological Traits, Rhizosphere Biological Activity, and Mycorrhizal Colonization of 14 Winter Wheat Varieties Released in Chile Between 1965 and 2020

Cited by 1 publication

References 46 publications

Genotypic Variability in Root Morphology in a Diverse Wheat Genotypes Under Drought and Low Phosphorus Stress

Genotypic Variability in Root Morphology in a Diverse Wheat Genotypes Under Drought and Low Phosphorus Stress

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