ArticleJournal of experimental botany2018
Final grain weight is not limited by the activity of key starch-synthesising enzymes during grain filling in wheat.
Article in Journal of experimental botany, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed.
- Impact of Temperature Stresses on Wheat Quality: A Focus on Starch and Protein Composition.Foods (Basel, Switzerland) · 2025Review
- Expression and interaction of AGPase subunits reveal functional enzyme complexes in barley.Frontiers in plant science · 2025Article
- Article
- Grain yield trade-offs in spike-branching wheat can be mitigated by elite alleles affecting sink capacity and post-anthesis source activity.Journal of experimental botany · 2024Article
- Stage-specific genotype-by-environment interactions determine yield components in wheat.Nature plants · 2023Article
- Mining the A.E. Watkins Wheat Landrace Collection for Variation in Starch Digestibility Using a New High-Throughput Assay.Foods (Basel, Switzerland) · 2023Article
- A 'wiring diagram' for sink strength traits impacting wheat yield potential.Journal of experimental botany · 2023Review
- Loss of starch synthase IIIa changes starch molecular structure and granule morphology in grains of hexaploid bread wheat.Scientific reports · 2022Article
- Article
- Article
- Dissection of Genetic Basis Underpinning Kernel Weight-Related Traits in Common Wheat.Plants (Basel, Switzerland) · 2021Article
- Overcoming the trade-off between grain weight and number in wheat by the ectopic expression of expansin in developing seeds leads to increased yield potential.The New phytologist · 2021Article
- Nitrogen Supply Affects Yield and Grain Filling of Maize by Regulating Starch Metabolizing Enzyme Activities and Endogenous Hormone Contents.Frontiers in plant science · 2021Article
- The Physiological Basis of Improved Heat Tolerance in Selected Emmer-Derived Hexaploid Wheat Genotypes.Frontiers in plant science · 2021Article
- A review of starch biosynthesis in cereal crops and its potential breeding applications in rice (PeerJ · 2021Article
- A proteomic analysis of grain yield-related traits in wheat.AoB PLANTS · 2020Article
- Dissecting the Seed Maturation and Germination Processes in the Non-OrthodoxInternational journal of molecular sciences · 2020Article
- Silencing ofInternational journal of molecular sciences · 2020Article
- Genetics of yield, abiotic stress tolerance and biofortification in wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Review
- Linking fundamental science to crop improvement through understanding source and sink traits and their integration for yield enhancement.Journal of experimental botany · 2020Article
Corrections and comments
- Erratum issued
Authors and funding
7 authors.
Funding
Abstract
Since starch is by far the major component of the mature wheat grain, it has been assumed that variation in the capacity for starch synthesis during grain filling can influence final grain weight. We investigated this assumption by studying a total of 54 wheat genotypes including elite varieties and landraces that were grown in two successive years in fields in the east of England. The weight, water content, sugars, starch, and maximum catalytic activities of two enzymes of starch biosynthesis, ADP-glucose pyrophosphorylase and soluble starch synthase, were measured during grain filling. The relationships between these variables and the weights and starch contents of mature grains were analysed. Final grain weight showed few or no significant correlations with enzyme activities, sugar levels, or starch content during grain filling, or with starch content at maturity. We conclude that neither sugar availability nor enzymatic capacity for starch synthesis during grain filling significantly influenced final grain weight in our field conditions. We suggest that final grain weight may be largely determined by developmental processes prior to grain filling. Starch accumulation then fills the grain to a physical limit set by developmental processes. This conclusion is in accord with those from previous studies in which source or sink strength has been artificially manipulated.
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