Assessment of potato response to climate change and adaptation strategies (original) (raw)
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Sensitivity of Potato Yield to Climate Change
One significant impact of climate change is the effect upon agriculture. As many evidences indicated that some remarkable changes could happen in climate scenario, the present work is mainly directed to discuss sensitivity of climate change upon the potato production in Egypt. The selection of potato product is mainly dependent upon that potato represent strategic crop cultivated in Egypt. The SUBSTOR potato model was employed to simulate physiological processes and yield of potato production. SUBSTOR model is a mechanistic, process-oriented model for tuber yield includes crop development. The present work introduces two possible cases of climate changes for the sake of climate crop production relationship. The actual measurements for potato production characteristics were used in the comparison with present and predicted. The climate change data is used from two general circulation models (CSIRO and HadCM3) for A1 greenhouse gases Scenario during 2050. The results of the work indicated that the potato yield decrease from 11 to 13% under climate change and the climate change data output from HadCM3 model gave the highest value of potato yield comparing with CSIRO model. And Valor cultivar gave the highest potato yield compared to Dezareah cultivar when the irrigation treatment taken place under current and future climate.
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Potato is the most important non-cereal crop in the world and the most prominent winter season crop in India. Growth and yield of potato crop is very much sensitive to higher temperatures and the moisture stress. Hence, the anticipated increase of temperature due to global warming and climatic variability will have anadverse impact on potato production. Keeping this in view, a research work was carried out with the objectives to assess the impact of climate change on potato production and evaluating agronomic adaptation options through a crop growth simulation model (CGSM). Field experiments were carried out to prepare the minimum dataset for calibration and validation of one CGSM, namely InfoCrop. After validation, the model was used to predict the future tuber yield of ten selected stations situated under different agroclimatic regions of the State. In the future scenario 2050, the simulated yield for mid November planted crop likely to be about 11% less than the present level of ...
European Potato Journal, 2018
Temperatures have a major effect on potato crop growth and yield attributes during the crop growing season. In this study, the SUBSTOR-Potato model was used to simulate the potato crop growth and yield in a subtropical region of West Bengal comprising of three districts, namely West Medinipur, Bankura and Birbhum in India. Also, the effect of temperature and planting dates scenario on potato crop growth was evaluated by using 30 years historical weather data of the aforesaid districts. Field experiments were conducted on potato crops of cultivar Kufri Jyoti under two planting dates (10th and 25th of December) and different fertilizer treatments in the years 2013-2014 and 2014-2015, respectively. The statistical results showed the satisfactory performance of the model with an R 2 of 0.82 to 0.98 and d-stat of 0.94 to 0.98 for the year 2013-2014 and an R 2 of 0.89 to 0.98 and d-stat of 0.97 to 0.98 for the year 2014-2015. Evaluation of planting dates with past 30 years historical data showed planting dates 20th and 30th of November resulted in average higher yield than planting dates 10th, 25th and 30th of December, respectively, in current climate scenario. Furthermore, the study suggests that amending the planting dates is an effective climate change adaptation strategy for reducing the effect of temperature on the yield of a potato crop in the near future.
Impact assessment of climate change on potato.pdf
Potato tuber yield were simulated at Jorhat, Assam under various Representative Concentration Pathways (RCPs) scenarios for 2020, 2050 and 2080 using DSSAT SUBSTOR-Potato model. The model was calibrated and validated for three potato cultivars, viz., Kufri Jyoti, Kufri Pokhraj and Kufri Himalini with the experimental data collected during 2014-15 and 2015-16. Results revealed that if planting is delayed beyond November, all these cultivars are likely to record drastic reduction in tuber yield. Cultivar Kufri Himalini may incur tuber yield loss of 64 per cent in 2020 to 75 per cent in 2080, followed by Kufri Jyoti (57.6% in 2020 to 71.5% in 2080) and Kufri Pokhraj (45.2% in 2020 to 56.2% in 2080). Among the cultivars, Kufri Pokhraj may remain a viable cultivar up to 2050, but Kufri Himalini may lose its sustainability by 2020 itself. Hence, adjustment of planting time and development of improved adaptive potato cultivars only will ascertain future potato production in this region.
Journal of Biology, Agriculture and Healthcare, 2019
Potato (Solanum tuberosum L.) is considered as the high potential food security crop and a major instrument for poverty alleviation in Ethiopia. However, it is most vulnerable to climate change due to its exact climatic requirement for various physiological processes. There are many indicators of environmental stresses including climate change, especially global warming, are severely affecting potato growth and productivity worldwide. The changing climate will affect the potato production adversely due to drought ,salinity,frost,flooding, erratic unseasonal rains ,surface temperature, increase in CO 2 fertilization, but decreases after some extent. Besides, anthropogenic activities such as CO 2 may increase crop yields due to increased CO 2 , CH 4 and CFC’s are contributing to the global warming. Under changing climatic situations crop failures, longer growing season, shortage of yields, reduction in quality, influence the pest and disease occurrences, host-pathogen interactions,...
Changes in potato cultivation technology in Korça region as adaptation to climate change
Italian Journal of Agronomy
The production of agricultural crops depends on the optimisation rate of plant genetic factors, climatic and soil factors and the level of agrochemicals. These factors are in constant dynamism and also are the production of agricultural plants. Changing in climatic conditions of the area will necessitate bring changes in the genetic resources of the plants that will be cultivated as well as in the technology of cultivation. The study analyses the thermal and pluviometry performance of the Korça field, one of the areas with the best agricultural development and on this basis is experimented with the time of potato planting and the adaption to these changes. The analysis of climate variability and trends of ecological climate factors is determining for the sustainability of agricultural production. Especially the increase in temperature indicators requires adaptation to the changes in the technology of crops cultivation. The planting time, which is essentially determined by the optimu...
Impact of Climate Change on Potato Production in India
Potato is a temperate crop and higher day temperatures cause some areas to less suitable for potato production due to lower tuber yields and its quality. Tuber growth and yield can be severely reduced by temperature fluctuations outside 5-30 °C. The rate of warming in last 50 years is double than that for the last century. Increase in temperature and atmospheric CO2 are interlinked occurring simultaneously under future climate change and global warming scenarios. If CO2 is elevated to 550 ppm the temperature rise is likely to be 3 ºC with decline in potato production by 13.72% in the year 2050. The changing climate will affect the potato production adversely due to drought, salinity, frost, flooding, erratic unseasonal rains etc. It may reduce seed tuber production, impact storage facility and potato processing industries. Therefore, the quantification of regional vulnerability and impact assessment is very important for the development of early warning on disease forecasting systems, breeding of short duration and heat, drought, salinity tolerant and disease resistant cultivars.
Possible effects of climate change on potato crops in Estonia
Boreal Environment Research
The main objective of this research is to generate and analyse values of meteorologically possible yields (MPY, maximum yield achievable under given meteorological conditions) of potato for the middle and end of the current century, in three Estonian locations. An early and late potato variety are analysed as examples. Climate change is evaluated under four different emission scenarios by 18 different GCMs; resultant changes are introduced into a dynamical potato growth model POMOD. The climate-driven changes without considering the effect of CO2 concentration change are determined. The negative impact of climate warming on early potato growth in Estonia is confirmed. Moderate climate change scenarios will have a positive influence on the growth of the late potato variety, whereas stronger changes will cause the decline of agrometeorological resources. A more positive or less negative effect of climate change is detected for Northern Estonia.
Impact assessment of climate change on potato productivity in Assam using SUBSTOR-Potato model
Journal of Agrometeorology, 2018
Potato tuber yield were simulated at Jorhat, Assam under various Representative Concentration Pathways (RCPs) scenarios for 2020, 2050 and 2080 using DSSAT SUBSTOR-Potato model. The model was calibrated and validated for three potato cultivars, viz., Kufri Jyoti, Kufri Pokhraj and Kufri Himalini with the experimental data collected during 2014-15 and 2015-16. Results revealed that if planting is delayed beyond November, all these cultivars are likely to record drastic reduction in tuber yield. Cultivar Kufri Himalini may incur tuber yield loss of 64 per cent in 2020 to 75 per cent in 2080, followed by Kufri Jyoti (57.6% in 2020 to 71.5% in 2080) and Kufri Pokhraj (45.2% in 2020 to 56.2% in 2080). Among the cultivars, Kufri Pokhraj may remain a viable cultivar up to 2050, but Kufri Himalini may lose its sustainability by 2020 itself. Hence, adjustment of planting time and development of improved adaptive potato cultivarsonly will ascertai n future potato production in this region.
Potato Journal, 2015
Scientific evidence gathered over the last couple of decades suggests that climatic conditions are changing rapidly. This trend is likely to continue, and even accelerate in future (IPCC 2007; Moss et al., 2010). These anticipated changes in climate baseline, variability, and extremes will have far-reaching consequences on agricultural production, posing additional challenges to meeting the food security for a growing world population (Lobell et al., 2008; Roudier et al., 2011). It is therefore pertinent to work out the impact of climate change on agricultural production, and develop, both mitigation and adaptation strategies. Although various methods have been proposed for the purpose but climate analogues offer a simple alternative. Reason being that relying on “analogue locations” that have today the climatic characteristics that are expected tomorrow in a target production zone can help predict the effect of changing climate on crops (Haussmann et al., 2012). Moreover, such stud...