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Singh, Kritika
- Screening of Potential Wheat Genotypes for Drought Tolerance using Polyethylene Glycol
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Authors
Affiliations
1 Molecular Cytogenetics and Tissue Culture Lab (MCTL), Department of Genetics and Plant Breeding, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
2 Vice-Chancellor, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
1 Molecular Cytogenetics and Tissue Culture Lab (MCTL), Department of Genetics and Plant Breeding, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
2 Vice-Chancellor, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
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Himachal Journal of Agricultural Research, Vol 46, No 2 (2020), Pagination: 130-135Abstract
Screening for early drought tolerance by using three treatments of PEG-6000, control (T1), 15% (T2 ) and 25% (T3) was employed in six wheat genotypes (DH 114, DH 40, DH 65, C 306, DH 52 and DH 5). The genotypes were 3 evaluated for shoot length, coleoptile length, ischolar_main length and ischolar_main to shoot ratio. From the results, shoot, coleoptile and ischolar_main length decreased with increased PEG concentrations. DH 40 expressed highest shoot length in T and T with least reduction and C 306 witnessed longer coleoptile with least reduction over control. DH 114 2 3 expressed highest ischolar_main length in all treatments, while DH 40 had least reduction (3.31 and 7.96% in T2 and T3, respectively). C 306 in T3 and DH 114 in T2 were superior for ischolar_main to shoot ratio. DH 40, DH 114 and C 306 3 2 possessed early drought tolerance behaviour and might be productive in wheat improvement programmes.Keywords
Coleoptile Length, DH 40, Drought Tolerance, PEG.References
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- Jatoi SA, Latif MM, Arif M, Ahson M, Khan A and Siddiqui SU. 2014. Comparative Assessment of Wheat Landraces against Polyethylene Glycol Simulated Drought Stress. Science, Technology and Development 33: 1-6.
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- Mapping India’s Exposure to Climate Change: A District Level Study
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Authors
Affiliations
1 Inequality and Human Development Programme, National Institute of Advanced Studies, Bengaluru 560 012, IN
1 Inequality and Human Development Programme, National Institute of Advanced Studies, Bengaluru 560 012, IN
Source
Current Science, Vol 125, No 2 (2023), Pagination: 124-129Abstract
Exposure is a key component in determining climate risk; however, inconsistencies around its conceptualization have been relatively less explored. This article first makes a case for studying exposure as a crucial factor in understanding the consequences of climate change and highlights the fact that exposure is a necessary factor in understanding both vulnerability and adaptation. It then goes on to trace the regional differences in exposure to climate change in India, and identifies the most climate change-affected districts in the country.Keywords
Climate Change, Exposure, Extreme Events, Long-Term Climate Variations, Vulnerability.References
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