A network of phytomers in cotton

Within-plant spatial variability in the production and demand for assimilates may have major implications for the formation of fruits. Gu et al. propose an FSP model for cotton (Gossypium hirsutum) based on local pools to quantify the variability of local carbohydrate availability within a plant.

Visualization of a simulated cotton plot using the local-pool model
Visualization of a simulated cotton plot using the local-pool model with transport coefficients of 0.01 (A) and 0.1 d−1 (B) at 90 DAS and a density of 1.5 plants m−2.

This model is plausible and simulates cotton performance effectively in terms of leaf area dynamics, dry mass allocation and transport of carbohydrate. Spatial variability of local carbohydrate availability has is captured as an emergent property in the model. CottonXL is a tool to explore the underlying mechanism of fruit abortion and branching pattern in cotton.

This paper is part of the Annals of Botany Special Issue on Functional-Structural Plant Growth Modelling. It will be free access until June 2018, then available only to subscribers until April 2019 when it will be free access again.

Reference List

Gu, S., Zhang, L., Yan, Z., van der Werf, W., & Evers, J. B. (2018). Quantifying within-plant spatial heterogeneity in carbohydrate availability in cotton using a local-pool model. Annals of Botany, 121(5), 1005–1017. https://doi.org/10.1093/aob/mcx210