ArticleJournal of experimental botany2023
Delayed development of basal spikelets in wheat explains their increased floret abortion and rudimentary nature.
Article in Journal of experimental botany, 2023. 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.
- Cultivar- and phase-specific effects of light on kernel number and compensation via kernel weight in wheat.Plant physiology · 2026Article
- Heat and Drought Co-Stress During Microgametogenesis Altered Pollen Development, Fertility and Grain Production in Two-Rowed Winter Barley.Plants (Basel, Switzerland) · 2026Article
- Physiological and Transcriptomic Dissection of Inflorescence Degeneration inPlants (Basel, Switzerland) · 2026Article
- Spatial transcriptomics identifies distinct domains regulating yield-component traits of the wheat ear.Science advances · 2026Article
- Wheat TaSPL13-2B Improves Floret Fertility and Enhances Grain Number per Spikelet Through Jasmonic Acid Signalling Pathway.Plant biotechnology journal · 2026Article
- Hidden gradients before form: a spatial transcriptomic atlas of wheat spike patterning.The Plant cell · 2026Article
- Spatial transcriptomics reveals expression gradients in developing wheat inflorescences at cellular resolution.The Plant cell · 2026Article
- Linking pod-set and seed yield of faba bean across organ, phytomer, plant, and population scales.Journal of experimental botany · 2025Article
- Siblicide between fertilized and unfertilized ovaries within the maize ear.Communications biology · 2025Article
- Transcriptomic and Metabolic Profiling Reveal the Mechanism of Ovule Development inInternational journal of molecular sciences · 2024Article
- Thermal imaging can reveal variation in stay-green functionality of wheat canopies under temperate conditions.Frontiers in plant science · 2024Article
- Bristling with potential: evaluating the effects of awns on yield under heat stress.Journal of experimental botany · 2023Article
- Delayed development of basal spikelets in wheat explains their increased floret abortion and rudimentary nature.Journal of experimental botany · 2023Article
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Authors and funding
7 authors.
Funding
Abstract
Large differences exist in the number of grains per spikelet across an individual wheat (Triticum aestivum L.) spike. The central spikelets produce the highest number of grains, while apical and basal spikelets are less productive, and the most basal spikelets are commonly only developed in rudimentary form. Basal spikelets are delayed in initiation, yet they continue to develop and produce florets. The precise timing or the cause of their abortion remains largely unknown. Here, we investigated the underlying causes of basal spikelet abortion using shading applications in the field. We found that basal spikelet abortion is likely to be the consequence of complete floret abortion, as both occur concurrently and have the same response to shading treatments. We detected no differences in assimilate availability across the spike. Instead, we show that the reduced developmental age of basal florets pre-anthesis is strongly associated with their increased abortion. Using the developmental age pre-abortion, we were able to predict final grain set per spikelet across the spike, alongside the characteristic gradient in the number of grains from basal to central spikelets. Future efforts to improve spikelet homogeneity across the spike could thus focus on improving basal spikelet establishment and increasing floret development rates pre-abortion.
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