Study on nitrogen metabolism under the influence of different planting dates in oat (Avena sativa L.)

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dc.contributor.advisorGoyal, Meenakshi
dc.contributor.authorAanchaldeep Kaur
dc.date.accessioned2021-03-18T05:44:30Z
dc.date.available2021-03-18T05:44:30Z
dc.date.issued2020
dc.description.abstractThe current investigation was carried out to evaluate the effect of staggered planting dates (Oct 9, Oct 24, Nov 13, Nov 26, Dec 11 and Dec 26) and growth stages (40, 50 and 60 DAS) in oat through field experiment during Rabi season using two genotypes. The OL-10 is a fast growing genotype with high regeneration potential and OL-11 is relatively slow growing single cut variety. The activities of nitrate reductase and nitrite reductase were observed high during optimum (Oct 24) and sub-optimum (Oct 9 and Nov 13) planting dates but low during late planting dates (Nov 26, Dec 11 and Dec 26). The activities of glutamine synthetase, glutamate synthase, glutamate dehydrogenase, glutamate oxaloacetate transaminase and glutamate pyruvate transaminase were observed high during late planting dates but were stable or slightly low at optimum and sub-optimum ones. The optimum and sub-optimum planting dates were also characterized by higher total chlorophyll, dry matter (DM), ash, crude fat, acid detergent fibre (ADF) and neutral detergent fibre (NDF) content in comparison with late planting dates. Crude protein, non-protein crude protein, in vitro dry matter digestibility, nitrate-N, nitrite-N and free amino acids increased with delay in planting dates. Meanwhile, the quality attributes of the oat except DM, ADF, NDF and free amino acids got declined with advancing maturity of vegetative fractions of plant. Furthermore, yield and yield attributes got declined with delay in planting time. Overall, OL-10 had higher nitrogen assimilation potential, nutritive value and yield potential as compared to OL-11 genotype.en_US
dc.identifier.citationAanchaldeep Kaur (2020). Study on nitrogen metabolism under the influence of different planting dates in oat (Avena sativa L.) (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810162599
dc.keywordsDigestibility, fodder yield, growth stages, nutritional composition, oat genotypes, planting dates.en_US
dc.language.isoEnglishen_US
dc.pages110en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemStudy on nitrogen metabolism under the influence of different planting dates in oat (Avena sativa L.)en_US
dc.subBiochemistryen_US
dc.themeStudy on nitrogen metabolism under the influence of different planting dates in oat (Avena sativa L.)en_US
dc.these.typeM.Scen_US
dc.titleStudy on nitrogen metabolism under the influence of different planting dates in oat (Avena sativa L.)en_US
dc.typeThesisen_US
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