ArticleJournal of experimental botany2010
Terminal drought-tolerant pearl millet [Pennisetum glaucum (L.) R. Br.] have high leaf ABA and limit transpiration at high vapour pressure deficit.
Article in Journal of experimental botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.
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Who cites it
43 citing papers in PubMed, 2 syntheses or guidelines pooled it, 246 citations in OpenAlex.
- Pearl millet response to drought: A review.Frontiers in plant science · 2023Pooled it
- A common genetic determinism for sensitivities to soil water deficit and evaporative demand: meta-analysis of quantitative trait Loci and introgression lines of maize.Plant physiology · 2011Pooled it
- Large Variations in the Transpiration of Sorghum Canopies Under High Evaporative Demand Are Positively Related to Water Use Efficiency.Plant, cell & environment · 2026Article
- Precise Evaluation of Transpiration Patterns in Relation to Grain Yield Under Drought Stress in Faba Bean.Plant direct · 2026Article
- Harnessing haloarchaea from halophyte Atriplex nummularia rhizosphere to enhance salt stress tolerance in maize seedlings.Environmental microbiome · 2025Article
- Physiological phenotyping of transpiration response to vapour pressure deficit in wheat.BMC plant biology · 2024Article
- Article
- Transpiration response to soil drying versus increasing vapor pressure deficit in crops: physical and physiological mechanisms and key plant traits.Journal of experimental botany · 2023Article
- Water use efficiency across scales: from genes to landscapes.Journal of experimental botany · 2023Review
- Identifying physiological and genetic determinants of faba bean transpiration response to evaporative demand.Annals of botany · 2023Article
- Optimizing Crop Water Use for Drought and Climate Change Adaptation Requires a Multi-Scale Approach.Frontiers in plant science · 2022Review
- Breeding Drought-Tolerant Pearl Millet Using Conventional and Genomic Approaches: Achievements and Prospects.Frontiers in plant science · 2022Review
- Pearl Millet Aquaporin GeneFrontiers in plant science · 2022Article
- Higher sowing density of pearl millet increases productivity and water use efficiency in high evaporative demand seasons.Frontiers in plant science · 2022Article
- Breeding custom-designed crops for improved drought adaptation.Advanced genetics (Hoboken, N.J.) · 2021Review
- Morpho-Physiological and Molecular Evaluation of Drought and Recovery inPlants (Basel, Switzerland) · 2020Article
- Article
- Automated discretization of 'transpiration restriction to increasing VPD' features from outdoors high-throughput phenotyping data.Plant methods · 2020Article
- Potential involvement of root auxins in drought tolerance by modulating nocturnal and daytime water use in wheat.Annals of botany · 2019Article
- Functional Dissection of the Chickpea (International journal of molecular sciences · 2019Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 4 countries.
Funding
Abstract
It was previously shown that pearl millet genotypes carrying a terminal drought tolerance quantitative trait locus (QTL) had a lower transpiration rate (Tr; g cm(-2) d(-1)) under well-watered conditions than sensitive lines. Here experiments were carried out to test whether this relates to leaf abscisic acid (ABA) and Tr concentration at high vapour pressure deficit (VPD), and whether that leads to transpiration efficiency (TE) differences. These traits were measured in tolerant/sensitive pearl millet genotypes, including near-isogenic lines introgressed with a terminal drought tolerance QTL (NIL-QTLs). Most genotypic differences were found under well-watered conditions. ABA levels under well-watered conditions were higher in tolerant genotypes, including NIL-QTLs, than in sensitive genotypes, and ABA did not increase under water stress. Well-watered Tr was lower in tolerant than in sensitive genotypes at all VPD levels. Except for one line, Tr slowed down in tolerant lines above a breakpoint at 1.40-1.90 kPa, with the slope decreasing >50%, whereas sensitive lines showed no change in that Tr response across the whole VPD range. It is concluded that two water-saving (avoidance) mechanisms may operate under well-watered conditions in tolerant pearl millet: (i) a low Tr even at low VPD conditions, which may relate to leaf ABA; and (ii) a sensitivity to higher VPD that further restricts Tr, which suggests the involvement of hydraulic signals. Both traits, which did not lead to TE differences, could contribute to absolute water saving seen in part due to dry weight increase differences. This water saved would become critical for grain filling and deserves consideration in the breeding of terminal drought-tolerant lines.
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