The changes in epicuticular wax load (EWL) and the leaf temperature in two peanut genotypes such as JL-24 (drought susceptible) and K-9 (drought tolerant) was studied under drought stress and its recovery. The drought stress was induced at different soil moisture level (100%, 60%, 40% and 20% FC) for 7 days and subsequent recovery for 7 days. In both JL-24 and K-9 genotypes, the EWL was found to be increase with the increase in the intensity of drought stress. However, the increase in EWL in K-9 genotype was found to be significantly higher than JL-24 genotype. Moreover, the leaf temperature was also found to be increased with the increase in the intensity of drought stress and the degree of increase in leaf temperature was more pronounced in JL-24 compared to K-9 genotype. Further, after the recovery of drought stress, the EWL and leaf temperature decreased consistently in both the genotypes. The results are discussed in terms of the differences in EWL and temperature of leaf in two genotypes studied under drought stress.
Solanki JK, Sarangi S.K. Effect of drought stress on epicuticular wax load in peanut genotypes. J App Biol Biotech. 2015; 3 (04): 046-048.
1. CGIAR, Consultive group on International Agricultural Research; 2005. http://www.cgiar.org/impact/researchgroundnut.html
2. ICRISAT, International Crops Research Institute for the Semi- Arid Tropics; 2011. http://www.icrisat.org/crop-groundnut.htm.
3. Timperio AM, Egidi MG and Zolla L. Proteomics applied on plant abiotic stresses: Role of heat shock proteins. J. Proteomics. 2008; 71: 391-411.
4. Premchandra GS, Saneoka H, Fugita K and Ogata S. Leaf water relations, osmotic adjustment, cell membrane stability, epicuticular wax load and growth as affected by increasing water deficit in sorghum. J. Exp. Bot. 1992; 43: 1569-1576.
5. Jackson RD, Idso SB, Reginato RJ, and Pinter PJ, Jr. Canopy temperature as a crop water stress index. Water Resour. Res. 1981; 17: 1133-1138.
6. Blum, A. Plant breeding for stress environments, CRC Press Inc. Boca Raton, FL; 1988.
7. Fischer RA, Rees D, Sayre KD, Lu M, Condon AG and Larque SA. Wheat yield progress associated with higher stomatal conductance and photosynthetic rate and cooler canopies. Crop Sci. 1998; 38: 1467-1475.
8. Govind G, Harshavardhan VT, Patricia JK, Dhanalakshmi R, Senthil Kumar M Sreenivasulu N, Udayakumar M. Identification and functional validation of a unique set of drought induced genes preferentially expressed in response to gradual water stress in peanut. Mol. Genet. Genomics. 2009; 281: 591-605.
9. Ebercorn A, Blum A and Jordan WR. A rapid colorimetric method for epicuticular wax content of sorghum leaves. Crop Sci. 1977; 17: 179-180.
10. Mohammadian Mansour A, Jennifer R Watling and Robert S Hill. The impact of epicuticular wax on gas-exchange and photoinhibition in Leucadendron lanigerum (Proteaceae). Acta oecologica. 2011; 31.1: 93-101.
11. Merah O, Deleens E, Souyris I, Monneveux P. Effect of glaucousness on carbon isotope discrimination and grain yield in durum wheat. J. Agron. Crop Sci. 2001; 185: 259-265.
12. Sanchez FJ, Manzanares M, De Andre´s EF, Tenorio JL, Ayerbe L. Residual transpiration rate, epicuticular wax load and leaf colour of pea plants in drought conditions, Influence on harvest index and canopy temperature. Eur. J. Agron. 2001; 15:57-70.
13. Burow, G. B., Franks, C. D., Xin, Z. (2008), Genetic and physiological analysis of an irradiated bloomless mutant (epicuticular wax mutant) of sorghum, Crop Sci., 48: 41-48.
14. Samdur MY, Manivel P, Jain VK, Chikani BM, Gor HK, Desai S, Misra JB. Genotypic differences and water deficit induced enhancement in epicuticular wax load in peanut. Crop Sci.2003; 43:1294-1299.
15. Nautiyal PC, Rajgopal, K, Zala PV, Pujari DS, Basu M., Dhadhal BA. and Nandre BM. Evaluation of wild Arachis for abiotic stress tolerance: I. Thermal stress and leaf water relations. Euphytica. 2008; 159: 43-57.
16. Chakravarti AK, Moitra A, Mukherjee A, Dey P, Chakraborty PK. Effect of planting methods and mulching on the thermal environment and biological productivity of groundnut. J. Agrometeorol. 2010; 12: 77-80.
17. Mukherjee A, Moitra R and Chakravarti AK, Variation of micrometeorogical environment within different groundnut cultivars. Environ. Ecol. 2010; 28: 1842-1844.
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