Prediction and calculation of morphological characteristics and distribution of assimilates in the ROSGRO model

Dayan, E.; Presnov, E.; Fuchs, M.

doi:10.1016/j.matcom.2003.09.021

Cited by 12 publications

(8 citation statements)

References 35 publications

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“…A first group of models predicts variables at the level of the whole shoot, such as total stem length and basal stem diameter (Hopper et al, 1994; Costa and Heuvelink, 2003; Oki et al, 2006) or morphological quality classes (Morisot, 1996). Structural descriptions have been refined further in more mechanistic models (Lieth and Pasian, 1991; Dayan et al, 2004), mostly with a view to predicting the harvest of rose flowers more accurately. Considerable effort has thus gone into modeling photosynthesis and assimilate partitioning, but the kinetics of expansion of individual organs and its variation with respect to organ position have not been described.…”

Section: Introductionmentioning

confidence: 99%

Rose bush leaf and internode expansion dynamics: analysis and development of a model capturing interplant variability

et al. 2013

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Rose bush architecture, among other factors, such as plant health, determines plant visual quality. The commercial product is the individual plant and interplant variability may be high within a crop. Thus, both mean plant architecture and interplant variability should be studied. Expansion is an important feature of architecture, but it has been little studied at the level of individual organs in rose bushes. We investigated the expansion kinetics of primary shoot organs, to develop a model reproducing the organ expansion of real crops from non-destructive input variables. We took interplant variability in expansion kinetics and the model's ability to simulate this variability into account. Changes in leaflet and internode dimensions over thermal time were recorded for primary shoot expansion, on 83 plants from three crops grown in different climatic conditions and densities. An empirical model was developed, to reproduce organ expansion kinetics for individual plants of a real crop of rose bush primary shoots. Leaflet or internode length was simulated as a logistic function of thermal time. The model was evaluated by cross-validation. We found that differences in leaflet or internode expansion kinetics between phytomer positions and between plants at a given phytomer position were due mostly to large differences in time of organ expansion and expansion rate, rather than differences in expansion duration. Thus, in the model, the parameters linked to expansion duration were predicted by values common to all plants, whereas variability in final size and organ expansion time was captured by input data. The model accurately simulated leaflet and internode expansion for individual plants (RMSEP = 7.3 and 10.2% of final length, respectively). Thus, this study defines the measurements required to simulate expansion and provides the first model simulating organ expansion in rosebush to capture interplant variability.

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Section: Introductionmentioning

confidence: 99%

Rose bush leaf and internode expansion dynamics: analysis and development of a model capturing interplant variability

et al. 2013

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“…Only a few global variables are required to describe the visual quality of the flower, so models for these roses tend to describe architecture on the basis of stem length or diameter [6] [7], or morphological quality classes [8]. Structural descriptions have been refined further in more mechanistic models [9] [10], but only with a view to predicting the number of rose flowers more accurately. ROSEGRO [10], for example, is a photosynthesisbased model that predicts the number of flowering shoots and their average weight and length as a function of the climatic conditions in the greenhouse.…”

Section: Introductionmentioning

confidence: 99%

Coordinated Development of the Architecture of the Primary Shoot in Bush Rose

Demotes-Mainard

Gueritaine

Boumaza

et al. 2009

2009 Third International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications

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The development of the architecture of ornamental bushes needs to be explicitly described because it defines both their visual appearance and their interface with the environment. The aim of this work was to describe the dynamics of organ development in the primary shoot of rose bushes and their coordination. Rosa hybrida L. 'Radrazz' was grown in a glasshouse in two seasons. Internodes and leaflets were measured frequently and elongation curves were fitted to a linear-plateau model. The number of leaflets per leaf displayed clear patterns of organization along the shoot. Allometric relationships linked all leaf dimensions to terminal leaflet length. The differences in internode length between successive phytomers resulted from differences in the extension rate and the duration of extension. Conversely, the differences in the terminal leaflet size resulted almost solely from differences in extension rate. Internodes and terminal leaflets extensions were closely coordinated. This work provides the basic elements for establishing a virtual plant model.

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“…Temperature is directly connected to physiological processes, such as respiration and photosynthesis, which are responsible for the plant growth rate and rose production [28]. Several mathematical models for rose production have been developed and calibrated, such as ROSGRO [29], ROSESIM [30], and other empirical models [6]. All these models have the aim to monitor and guide the plant growth, development, and flower production.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Greenhouse Energy Requirements for Rose Cultivation in Europe and North Africa

et al. 2020

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The ornamental plant production in greenhouses is widespread. A quantitative assessment of greenhouse energy consumption and its variability in space and time is strategic to improve the sustainability of the cultivation. The specific environmental features of the cultivation areas can strongly affect the sustainability of the production. A dynamic simulation model of greenhouse energy balance with an hourly time step was developed and parameterized for a state-of-the-art greenhouse to evaluate the heating requirements for cut-flower roses. This ornamental crop has been used as model species for its high energy requirement for flower production. The energy demand for rose production has been analyzed with an energy balance model with an hourly time step. After a preliminary analysis on the period 1973–2019, the final analysis was carried out on the 30-year period (1990–2019), representative of the current climate. Results show a gradient southwest–northeast of energy needs with relevant effects on economic and environmental sustainability. More specifically, four large sub-areas are identified, namely the central-southern Mediterranean (yearly requirements below 600 MJ m−2 year), the northern Mediterranean, and the area influenced by the mitigating effect of the Atlantic Ocean (600–1200), the central-European area (requirements of 1200–1800), and the Northern European area (above 1800).

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Prediction and calculation of morphological characteristics and distribution of assimilates in the ROSGRO model

Cited by 12 publications

References 35 publications

Rose bush leaf and internode expansion dynamics: analysis and development of a model capturing interplant variability

Rose bush leaf and internode expansion dynamics: analysis and development of a model capturing interplant variability

Coordinated Development of the Architecture of the Primary Shoot in Bush Rose

Comparison of Greenhouse Energy Requirements for Rose Cultivation in Europe and North Africa

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