Metabolic changes in roots and nodules of lentil genotypes with imazethapyr treatment

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dc.contributor.advisorGrewal, Satvir Kaur
dc.contributor.authorAlisha
dc.date.accessioned2021-10-27T05:54:24Z
dc.date.available2021-10-27T05:54:24Z
dc.date.issued2021
dc.description.abstractLentil (Lens culinaris) is an important pulse crop. Weed infestation affects the yield of lentil as it is a poor competitor of weeds due to their short stature and sluggish growth rate. The present study was to screen lentil genotypes of imazethapyr treatment. Twenty lentil genotypes were sown under three treatments: weed check (T1), weed-free (T2) and sprayed with imazethapyr (T3). Four contrasting genotypes comprising of two imazethapyr tolerant (LL1397 and LL1612) and two susceptible (Flip 2004-7L and PL07) genotypes were selected based on their morpho-physiological traits, number of pods/plant, 100-seed weight and yield. Activity of acetolactate synthase (ALS), carbon (alkaline/acid invertase, sucrose synthase and malate dehydrogenase) and nitrogen (glutamate dehydrogenase, glutamine synthetase and glutamate synthase) metabolizing enzymes were analyzed in four contrasting genotypes in both roots and nodules under three treatments. Imazethapyr inhibits the synthesis of acetolactate synthase (ALS), an enzyme responsible for the synthesis of branched-chain amino acids in plants. Higher activity of ALS in roots and nodules of LL1397 and LL1612 might be responsible for their better plant growth as compared to Flip 2004-7L and PL07. Higher activity of alkaline invertase, sucrose synthase, malate dehydrogenase (MDH), glutamate dehydrogenase (GDH), glutamine synthetase (GOGAT) and glutamate synthase (GS) in both roots and nodules might be helping their growth and nodule metabolism in LL1612 and LL1397 as compared to Flip 2004-7L and PL07 lentil genotypes.en_US
dc.identifier.citationAlisha (2021). Metabolic changes in roots and nodules of lentil genotypes with imazethapyr treatment (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810177377
dc.keywordsLentil, imazethapyr herbicide, weeds, ALS, carbon and nitrogen metabolizing enzymesen_US
dc.language.isoEnglishen_US
dc.pages93en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemMetabolic changes in roots and nodules of lentil genotypes with imazethapyr treatmenten_US
dc.subBiochemistryen_US
dc.themeMetabolic changes in roots and nodules of lentil genotypes with imazethapyr treatmenten_US
dc.these.typeM.Scen_US
dc.titleMetabolic changes in roots and nodules of lentil genotypes with imazethapyr treatmenten_US
dc.typeThesisen_US
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