ArticleAnnals of botany2011
Dry matter partitioning models for the simulation of individual fruit growth in greenhouse cucumber canopies.
Article in Annals of botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Parameter estimation for functional-structural plant models when data are scarce: using multiple patterns for rejecting unsuitable parameter sets.Annals of botany · 2020Article
- Environmental triggers for photosynthetic protein turnover determine the optimal nitrogen distribution and partitioning in the canopy.Journal of experimental botany · 2019Article
- Pattern-oriented modelling as a novel way to verify and validate functional-structural plant models: a demonstration with the annual growth module of avocado.Annals of botany · 2018Article
- Quantification of the effects of architectural traits on dry mass production and light interception of tomato canopy under different temperature regimes using a dynamic functional-structural plant model.Journal of experimental botany · 2014Article
- What is the most prominent factor limiting photosynthesis in different layers of a greenhouse cucumber canopy?Annals of botany · 2014Article
- Optimizing illumination in the greenhouse using a 3D model of tomato and a ray tracer.Frontiers in plant science · 2014Article
- Using functional–structural plant models to study, understand and integrate plant development and ecophysiology.Annals of botany · 2011Article
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3 authors.
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Abstract
BACKGROUND AND
aimsGrowth imbalances between individual fruits are common in indeterminate plants such as cucumber (Cucumis sativus). In this species, these imbalances can be related to differences in two growth characteristics, fruit growth duration until reaching a given size and fruit abortion. Both are related to distribution, and environmental factors as well as canopy architecture play a key role in their differentiation. Furthermore, events leading to a fruit reaching its harvestable size before or simultaneously with a prior fruit can be observed. Functional-structural plant models (FSPMs) allow for interactions between environmental factors, canopy architecture and physiological processes. Here, we tested hypotheses which account for these interactions by introducing dominance and abortion thresholds for the partitioning of assimilates between growing fruits.
methodsUsing the L-System formalism, an FSPM was developed which combined a model for architectural development, a biochemical model of photosynthesis and a model for assimilate partitioning, the last including a fruit growth model based on a size-related potential growth rate (R(P)). Starting from a distribution proportional to R(P), the model was extended by including abortion and dominance. Abortion was related to source strength and dominance to sink strength. Both thresholds were varied to test their influence on fruit growth characteristics. Simulations were conducted for a dense row and a sparse isometric canopy. KEY
resultsThe simple partitioning models failed to simulate individual fruit growth realistically. The introduction of abortion and dominance thresholds gave the best results. Simulations of fruit growth durations and abortion rates were in line with measurements, and events in which a fruit was harvestable earlier than an older fruit were reproduced.
conclusionsDominance and abortion events need to be considered when simulating typical fruit growth traits. By integrating environmental factors, the FSPM can be a valuable tool to analyse and improve existing knowledge about the dynamics of assimilates partitioning.
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