Model for simulation of potato growth from planting to emergence

Klemke, T.; Moll, Antje

doi:10.1016/0308-521x(90)90096-9

Cited by 8 publications

(1 citation statement)

References 16 publications

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“…Daylength does not influence the sprout growth rate. At sub-optimal temperatures, whether low (Klemke and Moll 1990) or high (Manrique and Hodges 1989;Midmore 1984;1988;Vander Zaag et al 1986) sprout growth rate is reduced. Figure 3a shows the relative effect of temperature on the sprout growth rate compounded from the data collected by these authors: at a relative rate of 1.0, the sprout growth rate is 1 mm per °Cd.…”

Section: Phasementioning

confidence: 99%

Modelling development and growth of the potato crop influenced by temperature and daylength: LINTUL-POTATO

Kooman

Haverkort²

1995

Current Issues in Production Ecology

114

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Abstract. A model 'LINTUL-POT ATO' is described which bases total dry matter production on light use efficiency of intercepted light by a potato crop. The course of light interception by green leaves initially is temperature-sum dependent and is also steered by influences of daylength and temperature on assimilate partitioning. Dry matter allocation to the foliage, which determines the final length of the growing period, is determined by a day length and temperature dependent period between emergence and tuber initiation and subsequent partitioning of dry matter to the tubers. Once the tuber daily growth rate equals total crop dry matter accumulation, no more foliage is formed and the crop senesces faster at higher temperatures. The aim of this paper is to explain effects of temperature and daylength on total tuber production from the effects of these environmental factors on the underlying processes. The relative effect of temperature on rates of emergence, light use efficiency, tuber initiation and tuber growth, and, the effect of daylength on development rate until tuber initiation are represented quantitatively. Potential tuber production at some temperature and day length regimes is calculated exploratively and compared with results from the literature. The model can be used to simulate tuber dry matter production in specific environments and to select cultivars for such environments with suitable temperature and daylength reactions on tuber initiation and dry matter partitioning so as to maximise yields.

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