Assessment of waterlogging induced physio-biochemical changes in sugarcane varieties and its association with waterlogging tolerance

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dc.contributor.authorSingh, S.en_US
dc.contributor.authorSingh, S.P.en_US
dc.contributor.authorPathak, A.D.en_US
dc.contributor.authorPandey, N.en_US
dc.date.accessioned2020-11-18T10:16:15Z
dc.date.available2020-11-18T10:16:15Z
dc.date.issued2019-05
dc.description.abstractAim: The aim of the present investigation was to study the effect of waterlogging on growth and physiological behaviour of sugarcane varieties, and to evaluate these in relation to waterlogging tolerance to identify reliable physiological parameters for screening sugarcane genotypes for waterlogging tolerance.. Methodology: Ten sugarcane varieties including four tolerant and one sensitive were planted under waterlogged and non waterlogged (control) conditions. Waterlogging was imposed for 70 days at the crop age of 120 days, thereafter water was completely drained. Based on relative cane weight (% waterlogged/control), the ranking of varieties was done for waterlogging tolerance. Changes in cane weight, stalk growth rate, internode length, chlorophyll stability index and antioxidant enzyme activity were measured at the end of waterlogging. Leaf samples were analysed for nitrogen, phosphorus and potassium content. Correlation between waterlogging tolerance and different traits was assessed. Results: Based on relative cane weight (% waterlogged/control), CoLk 94184 was found to be the most waterlogging tolerant variety while CoJ 64 the most sensitive. Waterlogging remarkably reduced stalk growth rate and a significant positive correlation was found between waterlogging tolerance and stalk growth rate during waterlogging. The average internode length of sugarcane varieties increased by 11% in waterlogging as compared to control. Tolerant varieties had high chlorophyll stability index than sensitive one showing that tolerant varieties had less chlorosis in waterlogging. Waterlogging caused a significant increase in antioxidant enzyme activity of catalase, peroxidase and superoxide dismutase, however these increase were higher in tolerant varieties. Waterlogging induced severe deficiencies of N, P and K in sugarcane; the leaf N and K concentration were below critical deficiency level. A strong positive correlation was found between leaf K content and waterlogging tolerance. Interpretation: Stalk growth rate, chlorophyll stability index and leaf potassium concentration during waterlogging were identified as efficient physiological traits for screening the sugarcane varieties for waterlogging tolerance.en_US
dc.identifier.affiliationsDivision of Plant Physiology and Biochemistry, ICAR- Indian Institute of Sugarcane Research, Lucknow- 226 002, Indiaen_US
dc.identifier.affiliationsDivision of Plant Physiology and Biochemistry, ICAR- Indian Institute of Sugarcane Research, Lucknow- 226 002, Indiaen_US
dc.identifier.affiliationsDivision of Plant Physiology and Biochemistry, ICAR- Indian Institute of Sugarcane Research, Lucknow- 226 002, Indiaen_US
dc.identifier.affiliationsDepartment of Botany, University of Lucknow, Lucknow- 226 007, Indiaen_US
dc.identifier.citationSingh S., Singh S.P., Pathak A.D., Pandey N.. Assessment of waterlogging induced physio-biochemical changes in sugarcane varieties and its association with waterlogging tolerance. Journal of Environmental Biology . 2019 May; 40(3): 384-392en_US
dc.identifier.issn0254-8704
dc.identifier.issn2394-0379
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/214567
dc.languageenen_US
dc.publisherTriveni Enterprisesen_US
dc.relation.issuenumber3en_US
dc.relation.volume40en_US
dc.source.urihttps://www.jeb.co.in/journal_issues/201905_may19/paper_18.pdfen_US
dc.subjectAntioxidant enzymesen_US
dc.subjectChlorophyll stability indexen_US
dc.subjectStalk growth rateen_US
dc.subjectWaterlogging toleranceen_US
dc.titleAssessment of waterlogging induced physio-biochemical changes in sugarcane varieties and its association with waterlogging toleranceen_US
dc.typeJournal Articleen_US
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