scholarly journals Effect of projected climate scenarios on the yields of potato crop and agronomic adaptation options as evaluated by crop growth model

MAUSAM ◽  
2022 ◽  
Vol 73 (1) ◽  
pp. 71-78
Author(s):  
SAON BANERJEE ◽  
KUSHAL SARMAH ◽  
ASIS MUKHERJEE ◽  
ABDUS SATTAR ◽  
PINTOO BANDOPADHYAY
Keyword(s):  
Climate Change ◽  
Potato Crop ◽  
Potato Production ◽  
Crop Growth ◽  
Adaptation Option ◽  
Yield Reduction ◽  
Seed Rate ◽  
Sprout Length ◽  
Agronomic Adaptation ◽  
Adaptation Options

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 mean yield. If the crop is planted in December, the percentage of yield reduction may be around 25%.The projected yield reduction, for the stations of higher latitude, is found to be negligible. Three possible agronomic adaptation options, viz., adjustment of date of planting, increase of seed rate and varying sprout length of seed tubers, have been tried as adaptation strategies to combat the adverse effects of climate change. It is concluded that the mid-November planting and longer sprout length will be the best adaptation option. However, the enhanced seed rate is not a viable adaptation option.

scholarly journals Managed Retreat Components and Costing in a Coastal Setting

2021 ◽  
Author(s):  
◽  
Samuel Olufson
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Local Governments ◽  
Adaptation Strategy ◽  
Adaptation Option ◽  
Future Research ◽  
Depth Analysis ◽  
Adaptation Options ◽  
Over Time

<p>Climate change impacts are beginning to be felt across the world. Therefore, the development and understanding of adaptation options is becoming more important. Sea-level rise and its associated impacts are predicted to continue and accelerate well into the next century. As such, it is important that adaptation options which reduce risks associated with sea-level rise are developed and are well understood. Managed retreat is one such option. While research on managed retreat is increasing, there is a lack of literature that identifies what managed retreat comprises, how to plan and stage the option over time, and how to cost it as an adaptation option.  This thesis aims to address this gap in the literature by answering the following three questions: (1) what are the issues related to implementing managed retreat as an adaptation strategy in coastal areas, now, and moving into the future?; (2) what are the components of managed retreat?; and (3) what framework could be developed for costing managed retreat?  A qualitative ‘desk-top’ approach was taken to deconstruct the components of managed retreat across space and time and to develop a framework for costing the components as part of an adaptation strategy. An in-depth analysis of literature, enabled an understanding of managed retreat implementation, and also informed the development of a component typology and costing framework for the adaptation option. The typology and framework were then tested for relevance and utility for decision making through a series of semi-structured discussions with key informants working in climate change adaptation.  Using the component typology and costing framework, a new approach is presented for staging and costing managed retreat, over time and in different contexts. The typology and framework contribute knowledge and guidance for local governments and infrastructure agencies when discussing managed retreat with their communities, for identifying and staging managed retreat, and for the costing of components. It does this by presenting components in stages as overlapping and parallel pathways, providing groupings of components according to types of costs, and identifying appropriate costing methodologies that enable the implementation of managed retreat. To conclude, the thesis suggests areas for future research on managed retreat.</p>

scholarly journals Managed Retreat Components and Costing in a Coastal Setting

2021 ◽  
Author(s):  
◽  
Samuel Olufson
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Local Governments ◽  
Adaptation Strategy ◽  
Adaptation Option ◽  
Future Research ◽  
Depth Analysis ◽  
Adaptation Options ◽  
Over Time

<p>Climate change impacts are beginning to be felt across the world. Therefore, the development and understanding of adaptation options is becoming more important. Sea-level rise and its associated impacts are predicted to continue and accelerate well into the next century. As such, it is important that adaptation options which reduce risks associated with sea-level rise are developed and are well understood. Managed retreat is one such option. While research on managed retreat is increasing, there is a lack of literature that identifies what managed retreat comprises, how to plan and stage the option over time, and how to cost it as an adaptation option.  This thesis aims to address this gap in the literature by answering the following three questions: (1) what are the issues related to implementing managed retreat as an adaptation strategy in coastal areas, now, and moving into the future?; (2) what are the components of managed retreat?; and (3) what framework could be developed for costing managed retreat?  A qualitative ‘desk-top’ approach was taken to deconstruct the components of managed retreat across space and time and to develop a framework for costing the components as part of an adaptation strategy. An in-depth analysis of literature, enabled an understanding of managed retreat implementation, and also informed the development of a component typology and costing framework for the adaptation option. The typology and framework were then tested for relevance and utility for decision making through a series of semi-structured discussions with key informants working in climate change adaptation.  Using the component typology and costing framework, a new approach is presented for staging and costing managed retreat, over time and in different contexts. The typology and framework contribute knowledge and guidance for local governments and infrastructure agencies when discussing managed retreat with their communities, for identifying and staging managed retreat, and for the costing of components. It does this by presenting components in stages as overlapping and parallel pathways, providing groupings of components according to types of costs, and identifying appropriate costing methodologies that enable the implementation of managed retreat. To conclude, the thesis suggests areas for future research on managed retreat.</p>

Evaluating agronomic adaptation options to increasing heat stress under climate change during wheat grain filling in France

2012 ◽  
Vol 39 ◽  
pp. 62-70 ◽  
Author(s):  
David Gouache ◽  
Xavier Le Bris ◽  
Matthieu Bogard ◽  
Olivier Deudon ◽  
Christian Pagé ◽  
...  
Keyword(s):  
Climate Change ◽  
Heat Stress ◽  
Grain Filling ◽  
Wheat Grain ◽  
Agronomic Adaptation ◽  
Adaptation Options

scholarly journals RESILIENCE OF AGRICULTURE FARMERS FOR CROP PRODUCTION IN RESPONSES TO CLIMATE CHANGE IMPACT ON SOUTH-EASTERN COAST OF BANGLADESH

2020 ◽  
Vol 4 (1) ◽  
pp. 28-37
Author(s):  
Prabal Barua ◽  
Syed Hafizur Rahman
Keyword(s):  
Climate Change ◽  
Agricultural Production ◽  
Crop Production ◽  
Yield Loss ◽  
Research Work ◽  
Eastern Coast ◽  
Yield Reduction ◽  
Dual Culture ◽  
The Impact ◽  
Adaptation Options

Coastal people of Bangladesh have been experiencing from lower crop productivity and fewer cropping intensity because of different climatic vulnerabilities. The research work was carried out in Banskhali upazila of Chattogram district and Teknaf of Cox’s Bazar district to assess the impact of climate change on crop production process and to suggest suitable coping strategies and adaptation options for advancing the coastal agriculture for increased agricultural production. To attain the objectives of the research, the author were collected randomly 240 sampled respondents using pre-tested interview schedule. Long-term data/information on climate change showed that there is a trend of temperature rise and erratic rainfall. Participants stated that the current climate in the study area behaving differently than in the past on a number of climate risk factors like increased temperature, frequent drought, changes in seasonal rainfall pattern, long dry spells, increase of soil salinity, increase of tidal surges affecting crop production. The study showed that the main reasons of yield reduction (20-40 % yield loss) in T. aman crop are erratic rainfall, increased intensity and frequency of drought, salinity, floods, cyclone, use of local varieties, increased incidences of pests & diseases etc in the context of climate change. Average yield level of HYV Boro is being affected (20-40 % yield loss) by high temperature and salinity and that of T.Aus/Aus crop is being affected (20-40 % yield loss) by tidal surge. Vegetables, pulses and oilseed crops are being affected (40-60 % yield loss) by soil wetness, excessive rainfall and water-logging in the selected areas. Sorjan system of cropping, rice-fish dual culture, utilization of bunds as vegetables/spices production in gher areas, floating bed agriculture and homestead gardening with introduction of salt-tolerant & drought tolerant crop varieties have been identified as potential adaptation options for development of coastal agriculture for increased agricultural production in attaining food security.

scholarly journals Thirty years of the PROINPA Foundation's contribution to Bolivian agriculture: Case of “Marcela” potato crop

2020 ◽  
Vol 23 (2) ◽  
pp. 66-73
Author(s):  
J. Gabriel
Keyword(s):  
Climate Change ◽  
Phytophthora Infestans ◽  
Drought Resistance ◽  
Potato Crop ◽  
Potato Production ◽  
Alternative Strategy ◽  
Late Potato ◽  
Potato Blight

With the objetive of recognizing Bolivian researchers, who are not always mentioned, we have written this simple but significant document, in which the case of potato cultivation “Marcela”, which is being widely used in the valleys from Tarija and Potosí heights mainly, due to its tolerance to drought, resistance to late potato blight (Phytophthora infestans) and precocity, with yields ranging from 15 to 20 t ha-1. This cultivar was assumed by INIAF as an alternative strategy to deal with reducing the effects of climate change on potato production.

Climate Change and Land Suitability for Potato Cultivation in India

2017 ◽  
pp. 1-16 ◽  
Author(s):  
Ravindra Kashinath Naitam ◽  
Preeti Deshmukt ◽  
P. C. Moharana ◽  
Indal K. Ramteke ◽  
R. S. Singh ◽  
...  
Keyword(s):  
Climate Change ◽  
Potato Crop ◽  
Uttar Pradesh ◽  
Potato Production ◽  
Climatic Conditions ◽  
Physical Factors ◽  
Spatial And Temporal Variability ◽  
Vegetable Crops ◽  
Commercial Potato ◽  
Almost All

Potato is one of the most important vegetable crops in India accounting for 20-25% of area under cultivation of vegetables and grown in a wide range of climatic conditions. It is grown in almost all states under diversified agro-climatic conditions. Nearly 80% of the crop is grown in Indo- Gangetic plains comprising Uttar Pradesh, West Bengal, Punjab, Haryana, Bihar and other parts of India like Gujarat and Karnataka. Moreover, within the country, there is a lot of heterogeneity in potato productivity depending upon mostly on management and climatic conditions. The viability of commercial potato production is influenced by spatial and temporal variability in soils, agro climate, and the availability of water resources. The inter and intra-regional variations in productivity within the country are attributed to the variations in bio-physical factors vis-a-vis specific soil-climatic requirements of the crop. The present chapter discusses the impact of climate change on the land resources requirement for potato crop with reference to Indian context.

Climate Change and Land Suitability for Potato Cultivation in India

2020 ◽  
pp. 1040-1052
Author(s):  
Ravindra Kashinath Naitam ◽  
Preeti Deshmukt ◽  
P. C. Moharana ◽  
Indal K. Ramteke ◽  
R. S. Singh ◽  
...  
Keyword(s):  
Climate Change ◽  
Potato Crop ◽  
Uttar Pradesh ◽  
Potato Production ◽  
Climatic Conditions ◽  
Physical Factors ◽  
Spatial And Temporal Variability ◽  
Vegetable Crops ◽  
Commercial Potato ◽  
Almost All

Potato is one of the most important vegetable crops in India accounting for 20-25% of area under cultivation of vegetables and grown in a wide range of climatic conditions. It is grown in almost all states under diversified agro-climatic conditions. Nearly 80% of the crop is grown in Indo- Gangetic plains comprising Uttar Pradesh, West Bengal, Punjab, Haryana, Bihar and other parts of India like Gujarat and Karnataka. Moreover, within the country, there is a lot of heterogeneity in potato productivity depending upon mostly on management and climatic conditions. The viability of commercial potato production is influenced by spatial and temporal variability in soils, agro climate, and the availability of water resources. The inter and intra-regional variations in productivity within the country are attributed to the variations in bio-physical factors vis-a-vis specific soil-climatic requirements of the crop. The present chapter discusses the impact of climate change on the land resources requirement for potato crop with reference to Indian context.

scholarly journals The expansion of brown rot disease throughout Bolivia: possible role of climate change

2016 ◽  
Vol 62 (5) ◽  
pp. 442-448 ◽  
Author(s):  
José Antonio Castillo ◽  
Giovanna Plata
Keyword(s):  
Climate Change ◽  
Bacterial Wilt ◽  
Potato Crop ◽  
Disease Incidence ◽  
Bacterial Pathogen ◽  
Brown Rot ◽  
Potato Production ◽  
Economic Losses ◽  
Seed Tubers ◽  
Latently Infected

Bacterial wilt is a devastating plant disease caused by the bacterial pathogen Ralstonia solanacearum species complex and affects different crops. Bacterial wilt infecting potato is also known as brown rot (BR) and is responsible for significant economic losses in potato production, especially in developing countries. In Bolivia, BR affects up to 75% of the potato crop in areas with high incidence and 100% of stored potatoes. The disease has disseminated since its introduction to the country in the mid-1980s mostly through contaminated seed tubers. To avoid this, local farmers multiply seed tubers in highlands because the strain infecting potatoes cannot survive near-freezing temperatures that are typical in the high mountains. Past disease surveys have shown an increase in seed tubers with latent infection in areas at altitudes lower than 3000 m a.s.l. Since global warming is increasing in the Andes Mountains, in this work, we explored the incidence of BR in areas at altitudes above 3000 m a.s.l. Results showed BR presence in the majority of these areas, suggesting a correlation between the increase in disease incidence and the increase in temperature and the number of irregular weather events resulting from climate change. However, it cannot be excluded that the increasing availability of latently infected seed tubers has boosted the spread of BR.

scholarly journals Simulating Agronomic Adaptation Strategies to Mitigate the Impacts of Climate Change on Wheat Yield in South-Eastern Australia

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 337
Author(s):  
Ketema Zeleke
Keyword(s):  
Climate Change ◽  
Climate Model ◽  
Wheat Yield ◽  
Adaptation Strategies ◽  
Yield Reduction ◽  
High Rainfall ◽  
Eastern Australia ◽  
Early Maturing ◽  
Agronomic Adaptation ◽  
The Impact

Rising air temperature and change in rainfall patterns are expected to have impact on agricultural production. The impact of climate change on wheat production was investigated and agronomic adaptation strategies were evaluated for two emission scenarios of Representative Concentration Pathway (RCP4.5 and RCP8.5) and three projection periods (2030, 2050 and 2070) using a climate model ensemble in the bio-physical model Agricultural Process SIMulator (APSIM). Early and late maturing wheat varieties were tested under six sowing time scenarios. Under RCP4.5, growing season rainfall would decrease by 9%, 15% and 19% in 2030, 2050 and 2070, respectively, and temperature would increase by 0.7 °C, 1.2 °C and 1.4 °C, respectively. For RCP4.5, the wheat yield would decrease by 9%, 15% and 19% in 2030, 2050 and 2070, respectively. Under RCP8.5, the yield would decrease by 9%, 18% and 27%, respectively. Short-season cultivars would be suitable for the low-rainfall environments and long-season cultivars for the high-rainfall environments. In 2050, for RCP4.5 at a low-rainfall site, the yield of early maturing variety would decrease by 11% and 31%, while at a high-rainfall site, these values would show a 9% decrease and 1% increase, respectively. At the low rainfall site, yield reduction for early sown variety would be 14% and 23% when late sown, while late maturing wheat would have a much higher yield reduction. At the higher rainfall site, yield reduction for early and late sown early maturing variety would be 3% and 15%, while for late-maturing wheat these values would be only 1% and 2%. Generally, the future climate is expected to have significant impact on wheat yield and changes in agronomic practices can mitigate the impacts on yield.

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