Physiological and Biochemical Basis of Lime Induced Iron Chlorosis Resistance in Groundnut

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dc.contributor.advisorKoti, R.V.
dc.contributor.authorPujar, Aruna
dc.date.accessioned2020-11-28T04:20:45Z
dc.date.available2020-11-28T04:20:45Z
dc.date.issued2016-06
dc.description.abstractA field experiment was conducted during Kharif, 2015 to study the effect of lime induced iron chlorosis on growth and yield components at Main Agricultural Research Station, Dharwad. The experiment consisted of two treatments (control and foliar application of FeSO4 @ 0.5 %) and ten genotypes (GPBD-4, TMV-2, JL-24, G-2-52, KADIRI-9, R-2001-2, GPBD-6, Dh-86, TAG-24, ICGV-86031). The experiment was laid out in split plot design with three replications. Chlorosis ranged from 1.2 to 37.2 per cent between 30 to 60 DAS and reduced the pod yield. FeSO4 application resulted 9 per cent reduction in chlorosis and increased the pod yield significantly by 11 per cent. This was attributed to the significant increase in ferrous, nitrogen contents, photosynthetic rate and pod yield in all the genotypes. Among the genotypes, ICGV-86031 recorded least chlorosis of 1-2 per cent. Whereas the genotypes JL 24 and TMV-2 were most susceptible recording 34–37 per cent chlorosis. The genotypes KADIRI-9 and R-2001-2 recorded highest pod yield with moderate chlorosis and highest ferrous iron content. The genotype ICGV 86031 had highest root protonation (7.59 and 7.65 at 30 and 60 DAS, respectively) followed by GPBD 6 (7.82 and 7.78 at 30 and 60 DAS, respectively.) as compared to rest of the genotypes (8.21 to 8.08 at 30 and 60 DAS, respectively). As regards to ferric reductase activity, GPBD 6 showed highest ferric reducatse activity (156 and 343 at 30 and 60 DAS, respectively) followed by ICGV 86031 (144 and 312 at 30 and 60 DAS respectively) with lowest chlorosis as compared to rest of the genotypes( 140 to 262 at 30 and 60 DAS respectively). Hence, it is confirmed that the genotypes ICGV-86031 and GPBD 6 and are considered more resistant to LIIC as compared to other genotypes.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810155960
dc.keywordsPhysiological and Biochemical Basis of Lime Induced Iron Chlorosis Resistance in Groundnuten_US
dc.language.isoEnglishen_US
dc.pages85pen_US
dc.publisherUniversity of Agricultural Sciences, Dharwaden_US
dc.research.problemPhysiological and Biochemical Basis of Lime Induced Iron Chlorosis Resistance in Groundnuten_US
dc.subCrop Physiologyen_US
dc.themePhysiological and Biochemical Basis of Lime Induced Iron Chlorosis Resistance in Groundnuten_US
dc.these.typeM.Scen_US
dc.titlePhysiological and Biochemical Basis of Lime Induced Iron Chlorosis Resistance in Groundnuten_US
dc.typeThesisen_US
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