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.

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Influence of a single non-destructive harvest on potato plantlets grown for minituber production.

Netherlands Journal of Agricultural Science ◽

10.18174/njas.v40i1.16527 ◽

1992 ◽

Vol 40 (1) ◽

pp. 21-41 ◽

Cited By ~ 2

Author(s):

W.J.M. Lommen ◽

P.C. Struik

Keyword(s):

Large Scale ◽

Seed Tuber ◽

Tuber Initiation ◽

Average Weight ◽

Tuber Growth ◽

Combined Effects ◽

Tuber Production ◽

Non Destructive ◽

Potato Plantlets

In vitro-propagated potato cv. Ostara and Bintje plantlets were transplanted in a greenhouse at 350 plants/msuperscript 2 under tuber-inducing conditions. Plants growing undisturbed were compared with plants from which tubers >=0.3 g were removed in a single non-destructive harvest 3-8 weeks after transplanting. In undisturbed plants tuber initiation slowed down 4 weeks after transplanting, and an average of 2 tubers/plant (average weight 5 g) were harvested in 11 weeks. After a non-destructive harvest new stolons and tubers were initiated, but overall and tuber growth rates were reduced, probably as a result of the combined effects of tuber removal, root damage and deep replanting. Highest tuber numbers and lowest growth rate reductions occurred when growth was at its maximum. The highest number of tubers/plant (3.44) was achieved with non-destructive harvesting 6 weeks after transplanting, but FW/tuber decreased with delay in harvesting from 1.97 to 0.77 g. Using this non-destructive harvesting procedure >1400 and 2400 minitubers >=0.3 g (average weight 1-2 g) could be produced per msuperscript 2 within 8 and 9 weeks of transplanting by Ostara and Bintje, respectively, and would be suitable for use in large-scale seed tuber production programmes. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Impact of Agronomic Strategies (Seed Tuber Pre-sprouting, Cultivar Choice) to Control Late Blight (Phytophthora infestans) on Tuber Growth and Yield in Organic Potato (Solanum tuberosum L.) Crops

Potato Research ◽

10.1007/s11540-007-9026-5 ◽

2007 ◽

Vol 50 (1) ◽

pp. 15-29 ◽

Cited By ~ 12

Author(s):

Kurt Möller ◽

Hans-Jürgen Reents

Keyword(s):

Solanum Tuberosum ◽

Late Blight ◽

Phytophthora Infestans ◽

Seed Tuber ◽

Solanum Tuberosum L ◽

Growth And Yield ◽

Tuber Growth ◽

Organic Potato ◽

Agronomic Strategies

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A multi-model analysis of change in potential yield of major crops in China under climate change

Earth System Dynamics ◽

10.5194/esd-6-45-2015 ◽

2015 ◽

Vol 6 (1) ◽

pp. 45-59 ◽

Cited By ~ 23

Author(s):

Y. Yin ◽

Q. Tang ◽

X. Liu

Keyword(s):

Climate Change ◽

Climate Models ◽

Global Climate ◽

Global Climate Models ◽

Growth And Yield ◽

Future Climate Change ◽

Yield Reduction ◽

Climate Data ◽

Potential Yield ◽

Crop Models

Abstract. Climate change may affect crop growth and yield, which consequently casts a shadow of doubt over China's food self-sufficiency efforts. In this study, we used the projections derived from four global gridded crop models (GGCropMs) to assess the effects of future climate change on the yields of the major crops (i.e., maize, rice, soybean and wheat) in China. The GGCropMs were forced with the bias-corrected climate data from five global climate models (GCMs) under Representative Concentration Pathway (RCP) 8.5, which were made available through the Inter-Sectoral Impact Model Intercomparison Project (ISI-MIP). The results show that the potential yields of the crops would decrease in the 21st century without carbon dioxide (CO2) fertilization effect. With the CO2 effect, the potential yields of rice and soybean would increase, while the potential yields of maize and wheat would decrease. The uncertainty in yields resulting from the GGCropMs is larger than the uncertainty derived from GCMs in the greater part of China. Climate change may benefit rice and soybean yields in high-altitude and cold regions which are not in the current main agricultural area. However, the potential yields of maize, soybean and wheat may decrease in the major food production area. Development of new agronomic management strategies may be useful for coping with climate change in the areas with a high risk of yield reduction.

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An evaluation of small seed for ware-potato production

The Journal of Agricultural Science ◽

10.1017/s0021859600068775 ◽

1992 ◽

Vol 118 (2) ◽

pp. 185-193 ◽

Cited By ~ 11

Author(s):

E. J. Allen ◽

P. J. O'Brien ◽

D. Firman

Keyword(s):

Seed Weight ◽

Seed Tuber ◽

Potato Production ◽

Frost Damage ◽

Economic Benefits ◽

Production Costs ◽

Growth And Yield ◽

Seed Tubers ◽

Small Seed ◽

Seed Crops

SUMMARYSixteen experiments over six seasons (1981–87) compared the growth and yield of up to 16 seed-tuber weights, ranging from 1–5 to 110–120 g, in one second-early and four maincrop varieties. Four of the experiments (1986–87) examined effects in seed tubers from seed crops planted in July; the remaining experiments used seed from crops planted at the normal time, April–May. Effects were similar for seed from the different planting dates. Plants from seed < 5 g (and occasionally up to 15 g) emerged slightly later and produced a smaller crop canopy that those from larger seed. The later emergence from the smallest seed was a consequence of a slower rate of sprout elongation. There were no effects of seed weight above 15 g on stem emergence or growth of the canopy. In 1982, a severe frost completely defoliated all plants in four experiments but within 2 weeks complete plant emergence was re-achieved from all seed weights except the smallest (1–5 g). The results suggest few differences between seed weights > 5 or 10 g in emergence from similar depths of planting or in recovery from frost damage.Tuber yields were little affected by seed weight > 5 or 10 g, even at constant within-row spacings. Consequently, seed rates from 0·59 to 5·4 t/ha produced similar yields and the results suggest considerable economic benefits and potential for using seed tubers of much smaller weight than may be sold under current legislation. The use of small seed tubers from late-planted crops may result in further economies in production costs and reduction in disease in seed tubers.

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Spatial and Temporal Downscaling of Atmospheric Components from GCMs for Historical Reconstruction and/or for Future Climate Change Study

World Environmental and Water Resources Congress 2012 ◽

10.1061/9780784412312.198 ◽

2012 ◽

Cited By ~ 2

Author(s):

S. Kure ◽

S. Jang ◽

N. Ohara ◽

M. L. Kavvas ◽

G. Matanga ◽

...

Keyword(s):

Climate Change ◽

Future Climate ◽

Future Climate Change ◽

Historical Reconstruction ◽

Climate Change Study

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What we can learn from the parallels between the COVID-19 and the future climate change crises

10.32942/osf.io/eg6hr ◽

2020 ◽

Author(s):

Rubén D. Manzanedo ◽

Peter Manning

Keyword(s):

Climate Change ◽

Global Economy ◽

Global Climate ◽

Future Climate Change ◽

Substantial Portion ◽

Preventative Measures ◽

The Future ◽

Behavioral Norm ◽

Climate Crisis ◽

Global Population

The ongoing COVID-19 outbreak pandemic is now a global crisis. It has caused 1.6+ million confirmed cases and 100 000+ deaths at the time of writing and triggered unprecedented preventative measures that have put a substantial portion of the global population under confinement, imposed isolation, and established ‘social distancing’ as a new global behavioral norm. The COVID-19 crisis has affected all aspects of everyday life and work, while also threatening the health of the global economy. This crisis offers also an unprecedented view of what the global climate crisis may look like. In fact, some of the parallels between the COVID-19 crisis and what we expect from the looming global climate emergency are remarkable. Reflecting upon the most challenging aspects of today’s crisis and how they compare with those expected from the climate change emergency may help us better prepare for the future.

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