Crop ecosystem responses to climatic change: root and tuberous crops.

Miglietta, F.; Bindi, Marco; Vaccari, Francesco Primo; Schapendonk, A.H.C.M.; Wolf, J.; Butterfield, Ruth

doi:10.1079/9780851994390.0189

Cited by 12 publications

(7 citation statements)

References 42 publications

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“…By 2075 only the very wettest areas appear to be able to support a reliable non-irrigated potato crop which indicates that the impact of increased seasonality in precipitation will be very important in the future. Miglietta et al (2000) suggested that there has been too little research into root/tuber crop biology to be sure of the impact of climate change other than to suggest that increased water stress may reduce yields and that elevated CO 2 may increase yields. These general statements clearly apply to the predicted future climate of Ireland and its impact on potato yield.…”

Section: Potatomentioning

confidence: 99%

Possible change in Irish climate and its impact on barley and potato yields

Holden

Brereton

Fealy

et al. 2003

Agricultural and Forest Meteorology

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Climate change scenarios can be used with crop simulation models to predict the impact of climate change on agricultural production. Focusing on two specific arable crops: (i) barley, a currently successful cereal crop, well adapted to the Irish climate and a staple of the tillage production sector; and (ii) potato, a traditional root crop in Ireland, sensitive to water stress and also a staple of the tillage production sector, the impact of climate change on yield was determined using simulation models (in the DSSAT package) and downscaled output from a general climate model. Daily weather data stochastically generated from mean monthly values for baseline (1961-1990), 2055 (2041-2060) and 2075 (2061-2090) climate periods were derived for over 500 locations in Ireland (derived from HADCM3Ga1). Important points with respect to the expected change in climate were that rainfall becomes more seasonally extreme, and a relatively uniform increase in temperature of about 1.6 • C over the country can be expected by the 2075 climate period. This change in climate is predicted to cause little change in the geographical distribution of barley yield, but grain yield in all areas is expected to increase with possibly a greater increase to the west. Potato yield in 2055 and 2075 is expected to fall for non-irrigated tubers. The impact is likely to be a severe loss of yield over most of the country by 2055. The implications of these findings are that barley will remain a viable cereal crop, and might find a greater role in livestock supplement feed supply (due to predicted drought losses effecting grass yield), but the irrigation demand for potato will be very significant, possibly making the crop non-viable for farmers, particularly in the east of Ireland where there will be competition for water in summer.

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Section: Potatomentioning

confidence: 99%

Possible change in Irish climate and its impact on barley and potato yields

Holden

Brereton

Fealy

et al. 2003

Agricultural and Forest Meteorology

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“…Lobell et al 2008). Two of the suggested adaptation strategies include altering the sowing date and changing variety (Matthews et al 1997), and there are several studies which suggest that either of these strategies might help to mitigate the impact of climate at a local or regional scale (Calvino et al 2003;de Bruin and Pederson, 2008;Andrade, 1995;Fakorede 1985;Challinor et al 2005;Miglietta et al 2000 andMakadho 1996). This paper introduces a methodology for estimating global maize and soybean yield for different levels of global temperature increases.…”

Section: Introductionmentioning

confidence: 99%

Impact of progressive global warming on the global-scale yield of maize and soybean

Rose

Osborne²,

Greatrex

et al. 2016

Climatic Change

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Global surface temperature is projected to warm over the coming decades, with regional differences expected in temperature change, rainfall and the frequency of extreme events. Temperature is a major determinant of crop growth and development, affecting planting date, growing season length and yield. We investigated the effects of increments of mean global temperature warming from 0.5°C to 4°C on soybean and maize development and yield, both globally and for the main producing countries, and simulated adaptation through changing planting date and variety. Increasing temperature resulted in reduced growing season lengths and ultimately reduced yields for both crops. The global yield for maize decreased as temperature increased, although the severity of the decrease was dependent on geographic region. Small temperature increases of 0.5°C had no effect on soybean yield, although yield decreased as temperature increased. These negative effects, however, were partly compensated for by the implementation of adaptation strategies including planting earlier in the season and changing variety. The degree of compensation was dependent on geographical area and crop, with maize adaptation delaying the negative effects of temperature on yield, compared to soybean adaptation which increased yield in China, India and Korea DPR as well as delaying the effects in the remaining countries. The results of this paper indicate the degree to which farmer-controlled adaptation strategies can alleviate the negative impacts of increasing temperature on two major crop species.

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“…The estimated minimum temperature (base temperature) for vine elongation rate, leaf addition rate, and leaf area expansion rate were at 16.7, 15.5, and 17.5°C, respectively (Table 2). Leaf production or initiation of leaf primodia is mainly driven by temperature under optimum soil moisture and nutrient conditions (Miglietta et al, 2000). Fujiwara et al (2004) reported that leaf development rate of sweetpotato single node cuttings increased linearly with increasing temperature under artificial light, except at low temperature of 23°C.…”

Section: Resultsmentioning

confidence: 99%

“…According to Indira and Kaberathumma (1988), three important physiological events in the growth phase of sweetpotato are responsible for final crop productivity, namely storage root initiation, storage root development, and storage root maturity. The possible impacts of temperature have not yet been fully comprehended for most species of root and tuber crops (Miglietta et al, 2000) including sweetpotato.…”

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confidence: 99%

Quantifying Storage Root Initiation, Growth, and Developmental Responses of Sweetpotato to Early Season Temperature

et al. 2014

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Temperature impacts several growth and developmental processes in sweetpotato [Ipomoea batatas L. (Lam)] including storage root (SR) initiation. To quantify early season growth and developmental responses of sweetpotato, an experiment was conducted using sunlit growth chambers at a wide range of day/night temperatures, 20/12, 25/17, 30/22, 35/27, and 40/32°C, from transplanting to 59 d using cultivar Beauregard. Growth and developmental rates were estimated from plants harvested at regular intervals. Total and SR numbers recorded at each harvest were analyzed by tting sigmoidal curves to estimate SR initiation rates. With increasing temperature, SR conversion e ciency increased quadratically with an optimum at 23.9°C. Adventitous and SR developmental rates were increased linearly and quadratically, respectively, with increasing temperature, and maximum rate of SR initiation was reached at 29.5°C in 16.7 d. Vine and leaf area growth rates showed quadratic trends with temperature with maximum rates at 29 and 33°C, respectively. While quadratic functions best described temperature responses of total, stem, and SR biomass, the optimum temperatures varied among them at 29.2, 30.1, and 26.5°C, respectively. Leaf biomass, conversely, increased linearly with temperature. Fraction of biomass partitioned to roots declined linearly and at high temperature it declined by 75%, compared to the fraction at SR optimum temperature. e SR production e ciency declined from 0.43 to 0.08 g SR kg -1 total weight, and dropped by 81% at high temperature relative to optimum. uanti ed growth and developmental responses derived from the developed temperature-dependent functional algorithms will be useful to develop sweetpotato crop models and management decisions.

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Crop ecosystem responses to climatic change: root and tuberous crops.

Cited by 12 publications

References 42 publications

Possible change in Irish climate and its impact on barley and potato yields

Possible change in Irish climate and its impact on barley and potato yields

Impact of progressive global warming on the global-scale yield of maize and soybean

Quantifying Storage Root Initiation, Growth, and Developmental Responses of Sweetpotato to Early Season Temperature

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