Abstract

  Climate change impacts agriculture in numerous ways including rising average temperatures, rainfall, changes in pests and diseases, rise in atmospheric carbon dioxide, ozone concentrations at ground level and changes in the nutritional quality of certain foods. Therefore, achieving global food security for rising global population under limited arable land is a major challenge in the twenty-first century. Maize plays an ever more vital role in the growth of global grains. Maize being a C4 plant has a high yield potential as witnessed from highest compound annual growth rate over last decade. However, in many countries maize production has been plateaued due to full exploitation of hybrid and manufacturing technologies. Therefore, maize ideotypes with favourable traits architecture need to be developed for increased stress resistance and higher yield under changing climate. In maize abiotic stress such as drought leads to delay in silking that result in an increase in the anthesis-silking interval, which is a major cause of yield losses. Acidic soils also conflict with maize production (Zea mays L.) resulting in yield losses of up to 69%. In this review, we have discussed the current challenges and different breeding approaches for sustainable maize production under changing climate i.e. climate resilience. With the advent of recent advances in omics approaches including genomics, transcriptomics, proteomics and metabolomics, great opportunity exists for development of elite climate resilient maize cultivars.

Keywords: Maize (Zea mays L.); Climate Change; Drought Stress; Heat Stress; Anthesis-Silking Interval; Breeding Approaches

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Citation

Citation: Suresh Yadav., et al. “Breeding Approaches for Climate Resilience in Maize (Zea mays L.): An Overview". Acta Scientific Agriculture 4.10 (2020): 20-29.

Copyright

Copyright: © 2020 Suresh Yadav., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.