A demographic model of assimilation and allocation of carbon and nitrogen in grapevines

Wermelinger, Beat; Baumgärtner, Johann; Gutiérrez, A. P.

doi:10.1016/0304-3800(91)90138-q

Cited by 89 publications

(65 citation statements)

References 29 publications

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“…In some models potential growth rates are used in combination with a priority sequence for (groups of) organs: First Eq. 2 is used to distribute dry matter among a group of organs, and only if supply exceeds demand of these organs (e.g., fruits, leaves and stems) assimilates are distributed to other organs (e.g., roots) (Wermelinger et al 1991;Grossman and DeJong 1994). These models, which are often used for trees, are also called hierarchical models (Lacointe 2000).…”

Section: Sink Regulation Modelsmentioning

confidence: 99%

Concepts of Modelling Carbon Allocation Among Plant Organs

Marcelis¹,

Heuvelink²

2007

Functional-Structural Plant Modelling in Crop Production

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Abstract. The simulation of carbon allocation among plant organs is one of the weakest features of crop growth models. This paper briefly discusses five concepts of modelling carbon partitioning: 1. Descriptive allometry, proposing a predetermined ratio between the (relative) growth rates of plant organs; 2. Functional equilibrium, proposing an equilibrium between root and shoot activity; 3. Canonical modelling, a mathematical approach based on only a qualitative understanding of the allocation process; 4. Sink regulation, proposing allocation to be determined by sink strengths of the different organs; and 5. Transport resistance, calculating carbon transport from source to sink through a resistance and its utilization in the sink organs. These five concepts are ordered in increasing complexity. Pros and cons of the different concepts are discussed. The most appropriate concept will depend on the species studied and the aim of the research.

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Section: Sink Regulation Modelsmentioning

confidence: 99%

Concepts of Modelling Carbon Allocation Among Plant Organs

Marcelis¹,

Heuvelink²

2007

Functional-Structural Plant Modelling in Crop Production

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“…Water (irrigation) and nutrients are assumed to be nonlimiting and hence only daily maximum-minimum temperature and solar radiation (MJ/m 2 /day) drive developmental and dry matter growth of the vine model. The lower thermal threshold for grapevine is 10 ∘ C. Full details of the grapevine model are provided in Wermelinger et al (1991;see also Gutierrez et al, 1985) and hence the model is not reviewed further.…”

Section: Methodsmentioning

confidence: 99%

“…The full dynamics of the plant subunit population growth are shown in Fig. 5(a) (Wermelinger et al, 1991), whereas the dynamics of L. botrana life stages are illustrated in Fig. 5(b, c).…”

Section: Simulated Grapevine and L Botrana Dynamics Near Cordoba (Anmentioning

confidence: 99%

“…Gutierrez et al (2012) linked physiologically-based demographic models (PBDMs) for grapevine (Wermelinger et al, 1991) and L. botrana and used the system to assess the invasiveness of L. botrana in the U.S.A. Prior work linking grapevine and pest models in a Geographic Information System (GIS) context include ( Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Prior work linking grapevine and pest models in a Geographic Information System (GIS) context include ( Fig. 1): the vine mealybug Planococcus ficus, its two parasitoids Anagyrus pseudococci and Leptomastidea abnormis, and the coccinellid predator Cryptolaemus (Gutierrez et al, 1985;Wermelinger et al, 1991) and (b) the linkage of L. botrana life-stages including diapause induction and termination . Note the linkages of two vascular feeding Hemiptera: the vine mealybug and the glassy winged sharpshooter (GWSS) and their natural enemies and the transmission of the Pierce's disease bacterium Xylella fastidiosa by GWSS (Gutierrez et al, , 2011.…”

Section: Introductionmentioning

confidence: 99%

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Climate warming effects on grape and grapevine moth (Lobesia botrana) in thePalearcticregion

Gutiérrez

Ponti

Gilioli³

et al. 2017

Agri and Forest Entomology

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is the principal native pest of grape in the Palearctic region. In the present study, we assessed prospectively the relative abundance of the moth in Europe and the Mediterranean Basin using linked physiologically-based demographic models for grape and L. botrana. The model includes the effects of temperature, day-length and fruit stage on moth development rates, survival and fecundity. 2 Daily weather data for 1980-2010 were used to simulate the dynamics of grapevine and L. botrana in 4506 lattice cells across the region. Average grape yield and pupae per vine were used as metrics of favourability. The results were mapped using the grass Geographic Information System (http://grass.osgeo.org). 3 The model predicts a wide distribution for L. botrana with highest populations in warmer regions in a wide band along latitude 40 ∘ N. 4 The effects of climate warming on grapevine and L. botrana were explored using regional climate model projections based on the A1B scenario of an average +1.8 ∘ C warming during the period 2040-2050 compared with the base period (1960)(1961)(1962)(1963)(1964)(1965)(1966)(1967)(1968)(1969)(1970). Under climate change, grape yields increase northwards and with a higher elevation but decrease in hotter areas. Similarly, L. botrana levels increase in northern areas but decrease in the hot areas where summer temperatures approach its upper thermal limit.

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