ArticleBMC plant biology2016
Genotypic variation in biomass allocation in response to field drought has a greater affect on yield than gas exchange or phenology.
Article in BMC plant biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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19 citing papers in PubMed, 44 citations in OpenAlex.
- Disentangling within season sources of variation for field-level phenotyping of grapevine.Tree physiology · 2026Article
- Analysis of genetic diversity for biomass production and related traits unveils possible morphophysiological mechanisms underlying forage productivity in Leptochloa crinita.BMC plant biology · 2026Article
- Impact ofPlants (Basel, Switzerland) · 2026Article
- Intraspecific drought tolerance in Ugandan Coffea canephora for accelerated breeding selection.PloS one · 2026Article
- Harnessing genetic diversity in wheat to enhance grain nutrition and yield for biofortification breeding.Biological research · 2025Article
- Identification of QTLs for early maturity-related traits based on RIL population of two elite cotton cultivars.BMC plant biology · 2024Article
- An Innovative Approach to Alleviate Zinc Oxide Nanoparticle Stress on Wheat through Nanobubble Irrigation.International journal of molecular sciences · 2024Article
- Stress phenotyping analysis leveraging autofluorescence image sequences with machine learning.Frontiers in plant science · 2024Article
- Combining ability analysis of yield and biomass allocation related traits in newly developed wheat populations.Scientific reports · 2023Article
- Safflower (PeerJ · 2023Article
- Transcriptome analysis reveals multiple effects of nitrogen accumulation and metabolism in the roots, shoots, and leaves of potato (Solanum tuberosum L.).BMC plant biology · 2022Article
- Rapid ChlorophyllPlant physiology · 2020Article
- Variation in Root and Shoot Growth in Response to Reduced Nitrogen.Plants (Basel, Switzerland) · 2020Article
- Sequencing-Based Bin Map Construction of a Tomato Mapping Population, Facilitating High-Resolution Quantitative Trait Loci Detection.The plant genome · 2019Article
- Metabotyping as a Stopover in Genome-to-Phenome Mapping.Scientific reports · 2019Article
- Article
- Phenotypic Trait Identification Using a Multimodel Bayesian Method: A Case Study Using Photosynthesis inFrontiers in plant science · 2018Article
- Allocation to male vs female floral function varies by currency and responds differentially to density and moisture stress.Heredity · 2017Article
- Temporal network analysis identifies early physiological and transcriptomic indicators of mild drought ineLife · 2017Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPlant performance in agricultural and natural settings varies with moisture availability, and understanding the range of potential drought responses and the underlying genetic architecture is important for understanding how plants will respond to both natural and artificial selection in various water regimes. Here, we raised genotypes of Brassica rapa under well-watered and drought treatments in the field. Our primary goal was to understand the genetic architecture and yield effects of different drought-escape and dehydration-avoidance strategies.
resultsDrought treatments reduced soil moisture by 62 % of field capacity. Drought decreased biomass accumulation and fruit production by as much as 48 %, whereas instantaneous water-use efficiency and root:shoot ratio increased. Genotypes differed in the mean value of all traits and in the sensitivity of biomass accumulation, root:shoot ratio, and fruit production to drought. Bivariate correlations involving gas-exchange and phenology were largely constant across environments, whereas those involving root:shoot varied across treatments. Although root:shoot was typically unrelated to gas-exchange or yield under well-watered conditions, genotypes with low to moderate increases in root:shoot allocation in response to drought survived the growing season, maintained maximum photosynthesis levels, and produced more fruit than genotypes with the greatest root allocation under drought. QTL for gas-exchange and yield components (total biomass or fruit production) had common effects across environments while those for root:shoot were often environment-specific.
conclusionsIncreases in root allocation beyond those needed to survive and maintain favorable water relations came at the cost of fruit production. The environment-specific effects of root:shoot ratio on yield and the differential expression of QTL for this trait across water regimes have important implications for efforts to improve crops for drought resistance.
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