ArticlePloS one2018
Different grain-filling rates explain grain-weight differences along the wheat ear.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Genome-wide association analysis to identify QTLs and candidate genes associated with grain yield and its related traits under low light conditions in rice (Oryza sativa L.).The plant genome · 2026Article
- Enhancing genomic predictive ability of yield and yield-related traits in spring wheat by integrating major plant adaptation genes as a fixed effect.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- A La Carte Seed Harvesting:Ecology and evolution · 2025Article
- Genome-wide association study identifies QTL and candidate genes for grain size and weight in a Triticum turgidum collection.The plant genome · 2025Article
- QTL mapping: insights into genomic regions governing component traits of yield under combined heat and drought stress in wheat.Frontiers in genetics · 2023Article
- Article
- Genetic mechanisms determining grain number distribution along the spike and their effect on yield components in wheat.Molecular breeding : new strategies in plant improvement · 2021Article
- Wheat (Plants (Basel, Switzerland) · 2021Article
- Wheat individual grain-size variance originates from crop development and from specific genetic determinism.PloS one · 2020Article
- Biostimulant Effects of Glutacetine® and Its Derived Formulations Mixed With N Fertilizer on Post-heading N Uptake and Remobilization, Seed Yield, and Grain Quality in Winter Wheat.Frontiers in plant science · 2020Article
- A Physio-Morphological Trait-Based Approach for Breeding Drought Tolerant Wheat.Frontiers in plant science · 2020Review
- Integrating High-Throughput Phenotyping and Statistical Genomic Methods to Genetically Improve Longitudinal Traits in Crops.Frontiers in plant science · 2020Review
- Nondestructive and Fast Vibration Phenotyping of Plants.Plant phenomics (Washington, D.C.) · 2019Article
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Thousand grain weight is one of the components determining wheat grain yield. It represents the average value of individual grain weights which depends on position within the ear and on positon within the spikelet. Our objective was to quantify the influences of individual floret anthesis date, of carpel weight at anthesis and of rate and duration of grain filling, on variation in individual final grain weight. Two bread wheat cultivars were grown in a greenhouse and their ears were sampled from anthesis through to harvest. Each ear was divided into three parts-basal, central and apical-where the two proximal grains were dissected from each of two spikelets. We analysed (i) the flowering time shift within the ear and within the spikelet; and (ii) the growth kinetics during grain filling in relation to position along the ear. For both cultivars, florets located in the central part of the ear were the first to reach anthesis followed by those in the apical part and then the basal part. Within a spikelet, the floret located nearest the rachis flowered first followed by the more distal ones. We found no significant systematic effect of flowering time-shift on final grain weight. Nevertheless, grains in the central part were heavier than the basal ones (9.75% smaller) and than the apical ones (18.25% smaller). These differences were explained mainly by differences in mean grain filling rates. Analysis of growth kinetics enabled an improved explanation of the variability of individual grain weight along the ear.
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