Abstract
Global climate change has caused severe crop yield losses worldwide and is endangering food security in the future. The impact of climate change on food production is high in Australia and globally. Climate change is projected to have a negative impact on crop production. Chickpea is a cool season legume crop mostly grown on residual soil moisture. High temperature and terminal drought are common in different regions of chickpea production with varying intensities and frequencies. Therefore, stable chickpea production will depend on the release of new cultivars with improved adaptation to major events such as drought and high temperature. Recent progress in chickpea breeding has increased the efficiency of assessing genetic diversity in germplasm collections. This review provides an overview of the integration of new approaches and tools into breeding programs and their impact on the development of stress tolerance in chickpea.
Highlights
Chickpea is a cool season crop and an important source of protein
Negative impacts of climate change are likely to result from the effects of drought, high temperature, low temperature, and excessive moisture and these factors affect crop yields in many regions globally
This shows that high temperature and drought are the major factors that affect chickpea production
Summary
Chickpea is a cool season crop and an important source of protein. Chickpea is grown worldwide in over 54 countries in 12.7 Mha with annual production of 12 Mt. Negative impacts of climate change are likely to result from the effects of drought, high temperature, low temperature, and excessive moisture and these factors affect crop yields in many regions globally. Global mean surface temperature for the mid and late 21st century is projected to rise by 2 ◦ C which will lead to an extreme variation in precipitation events, more heat waves and fewer cold temperature extremes [3] Such changes in climate will impact chickpea production and yield and result in grain yield decreases of up to 19% in chickpea [4]. With every 0.1 ◦ C temperature rise combined with 31% reduction in seasonal rainfall, the yield of chickpea decreased by 38.5 kg/ha [9] This shows that high temperature and drought are the major factors that affect chickpea production. Recent developments in breeding, genetics, genomics and agronomic strategies to improve stress tolerance in chickpea are discussed
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