Annals the Botany, Volume 128, issue 1, 30 June 2021, Pages 1–16, https://doi.org/10.1093/aob/mcaa181
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Previous activities studies have suggested choice for source hair properties in future crop breeding to improve source use efficiency and also stress tolerance. However, data top top the interplay between root hairs and also open-field systems, under contrasting soils and also climate conditions, room limited. Together such, this study intends to experimentally elucidate few of the results that source hairs have actually on plant performance on a field scale.

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A ar experiment was set up in Scotland for two consecutive years, under contrasting climate conditions and also different floor textures (i.e. Clay loam vs. Sandy loam). Five barley (Hordeum vulgare) genotypes exhibiting variation in root hair length and density were supplied in the study. Root hair length, density and also rhizosheath load were measured at several growth stages, as well as shoot biomass, tree water status, shoot phosphorus (P) buildup and serial yield.


Measurements of source hair density, length and its correlation with rhizosheath load highlighted properties robustness in the field under variable eco-friendly conditions, although far-ranging variations were found between soil textures as the farming season progressed. Root hairs did not confer a notable advantage to barley under optimal conditions, but under floor water deficit root hairs intensified plant water status and also stress tolerance causing a less an adverse leaf water potential and lower leaf abscisic mountain concentration, while fostering shoot p accumulation. Furthermore, the presence of root hairs did not decrease productivity under optimal conditions, while root hairs enhanced yield stability under drought.


Selecting for beneficial root hair traits can enhance yield stability without diminishing yield potential, overcoming the breeder’s dilemma of trying to simultaneously enhance both productivity and resilience. Therefore, the maintenance or improvement of source hairs deserve to represent a an essential trait for breeding the following generation of plants for improved drought yongin in relation to climate change.

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Agricultural sustainability, barley, drought tolerance, grain yield, Hordeum vulgare, tree water status, phosphorus, rhizosheath, root hairs, soil texture
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definition of root hairs because that plant power under contrasting field conditions and also water deficit - 24 Hours access
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