Effect of intra-seasonal variation in temperature on tuber yield of potato in middle Gujarat using SUBSTOR model

Patil, D. D.; Pandey, Vivek; Acharya, R.R.; BARAIYA, L. N.

doi:10.54386/jam.v20i1.497

Cited by 5 publications

(3 citation statements)

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“…Potato is an important vegetable crop in Gujarat, grown during the winter season. Tubers planted during the first fortnight of November were found to have produced a significantly higher tuber yield than the tubers planted during October (Patil et al, 2018b). Varietal differences were found to be significantly influenced by climatic variation.…”

Section: Potatomentioning

confidence: 84%

“…An increase in maximum temperature by 2 0 C in different months (November, December, January, and February) caused a decrease in the tube yield by -4.6% to -10.6%, while a decrease in temperature caused a slight increase in the yield, varying between 2.2% and 12.6% across the dates of planting. Lowering of the maximum temperature during November has the highest favorable effect, while temperature June 2023 fluctuation during February has the least favorable effect (Patil et al, 2018b). However, the late sown crop was more influenced by the temperature fluctuation in February than that of other months.…”

Section: Potatomentioning

confidence: 90%

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Climate variability, trends, projections and their impact on different crops: A case study of Gujarat, India

Pandey

2023

J. Agrometeorol.

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Gujarat, being a coastal state, is likely to be impacted by global warming and climate change not only due to sea level rise and salinity ingress but also due to an increase in the frequency of cyclonic storms and other extreme weather events, causing uncertainty in crop production. An attempt has therefore been made to understand the climate of Gujarat in the past, present, and future based on the works done at the Department of Agricultural Meteorology, Anand. Analysis carried out on climatic trends and climatic extremes using past available data from different stations in Gujarat has been highlighted. Crop simulation models validated with experimental data collected for different crops across Gujarat state were used to understand the response of crops to climatic variability. The climate change impact studies and adaptation strategies carried out under the NPCC project have also been highlighted. And lastly, the work done by the author as an emeritus scientist on climate projections under RCP 4.5 and RCP 8.5 for all the districts of Gujarat and their likely impact on selected crops is presented. The results revealed that in the past, temperatures have shown increasing trends but not reached significant levels except at certain locations at night. Rainfall has also increased, but marginally. Future temperatures have been projected to increase in different parts of Gujarat under RCP4.5 and RCP8.5 with varying magnitudes. Similarly, the rainfall has also been projected to increase, while the sunshine hours are projected to decrease. The ultimate impact would be a drastic reduction in yields in spite of the increase in CO2 level, suggesting that the present-day crop varieties would not be able to sustain crop production levels under a changing climatic scenario.

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Section: Potatomentioning

confidence: 84%

Section: Potatomentioning

confidence: 90%

Climate variability, trends, projections and their impact on different crops: A case study of Gujarat, India

Pandey

2023

J. Agrometeorol.

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“…The positive impact of elevated CO 2 on photosynthesis and potato productivity has been widely studied, and the ndings of these studies are important for understanding the potential impacts of climate change on potato production. The study conducted by Patil et al (2018) found that a rise of 3°C in temperature can result in a drop in tuber yield of up to 16-17%. This highlights the negative impact that rising temperatures can have on potato growth and productivity.…”

Section: Sensitivity Analysismentioning

confidence: 99%

Climate Change projections- Impacts and Adaptations on Potato (Solanum tuberosum L.) in West Bengal

Rana

Chauhan

Dua

et al. 2023

Preprint

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Simulation models are useful tools to evaluate the effects of future climatic scenarios on the potential productivity of potato. The present study aimed to evaluate the impact of climate change using WOFOST and InfoCrop for representative concentration pathways (RCPs 4.5 and 6.0) and for future climate scenarios (2030, 2050, and 2080): also to establish the adaptation strategies, either by selecting suitable cultivar or by shifting date of planting or with proper irrigation and nitrogen management practices to compensate yield losses. Potato cultivars belonging to late (Kufri Badshah), medium (Kufri Jyoti), and early (Kufri Pukhraj) maturity cultivars were selected. Based on simulation results, it has been predicted that under RCP 4.5, the cumulative concentration of CO2 is likely to increase, leading to a potential productivity boost of 1.26%, 1.31%, and 1.03% for Kufri Badshah, Kufri Jyoti, and Kufri Pukhraj potato varieties respectively by the year 2030. However, in 2050, a 0.20% and 0.02% increase is expected in Kufri Badshah and Kufri Jyoti, whereas, a decline (0.42%) is projected for Kufri Pukhraj. For 2080, a decline in potential productivity is anticipated for Kufri Badshah (-2.53%), Kufri Jyoti (-2.90%), and Kufri Pukhraj (-3.77%). However, the corresponding increase in temperature is likely to reduce the mean productivity by 5.7, 6.2, and 6.2% in 2030; 10.6, 11.6, and 11.8% in 2050 and 15.9, 17.2, and 17.9% in 2080, for Kufri Badshah, Kufri Jyoti, and Kufri Pukhraj, respectively. However, when the combined influence of temperature and CO2 were considered, these losses can be compensated to some extent for 2030 (1.4, 1.4, and 1.1%), 2050 (0.3, 0.1, and − 0.4%) and 2080 (-2.4, -2.8 and − 3.7%) for Kufri Badshah, Kufri Jyoti, and Kufri Pukhraj, respectively. Alike, for RCP 6.0, elevated concentration of CO2 is likely to increase the mean productivity in 2030 (7.1%), 2050 by 11.6% in, and by 21.1% in 2080. However, the elevated temperature is predicted to decrease the potential productivity in 2030 (-2.7%), 2050 (-6.3%), and 2080 (-17.8%). Although, when the combined effect of temperature and CO2 is considered, the potential productivity of potato is not much affected (4.2% in 2030, 4.6% in 2050, and by 1.0% in 2080). Further, by following adaptation strategies i.e shifting the date of planting and by selecting suitable cultivars productivity can be enhanced. In adaptation, among eleven varieties, Kufri Khyati emerged to be least affected and Kufri Kanchan was affected most by the effect of climate change for future climatic scenarios (2030, 2050, and 2080) for both RCPs (4.5 & 6.0). Further, with proper irrigation and nitrogen management practices, yield can also be increased.

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Climate Change and Potato Productivity in Punjab—Impacts and Adaptation

et al. 2020

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Effect of intra-seasonal variation in temperature on tuber yield of potato in middle Gujarat using SUBSTOR model

Cited by 5 publications

References 0 publications

Climate variability, trends, projections and their impact on different crops: A case study of Gujarat, India

Climate variability, trends, projections and their impact on different crops: A case study of Gujarat, India

Climate Change projections- Impacts and Adaptations on Potato (Solanum tuberosum L.) in West Bengal

Climate Change and Potato Productivity in Punjab—Impacts and Adaptation

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