RADIATION AND THERMAL USE EFFICIENCY OF PEA CROP UNDER DIFFERENT ENVIRONMENTAL CONDITIONS

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dc.contributor.advisorJANGRA, MOHAN SINGH
dc.contributor.authorDEVI, SAVITA
dc.date.accessioned2019-11-01T07:01:35Z
dc.date.available2019-11-01T07:01:35Z
dc.date.issued2019-10
dc.description.abstractABSTRACT A field experiment was conducted during Rabi season of 2017-18 to the radiation and thermal use efficiency of pea crop under different environmental conditions. The experiment consist of two dates of sowing viz 1st and 15th December 2017-18 with three cultivars Azad P1, PB-89 and ESP-111under two orientations level O1 (N-S) and O2 (E-W), in the Experimental Farm under the Department of Environmental Science, College of Forestry, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh. The results indicated that Azad P-1, PB-89 and ESP-111 took 113, 115 and 121 days and to 911.86, 895.10 and 986.80 °C day GDD, respectively to reach physiological maturity under first date of sowing. Similarly, for second date of sowing Azad P-1, PB-89 and ESP-111 took 109, 107 and 114 days and to 869.57, 883.13 and 978.71 °C day GDD, respectively to reach physiological maturity A significant increasing trend was observed in different thermal units viz GDD, HTU, PTU and HYTU with days after sowing for various phenophases of Pea cultivars at varying environment. The thermal units explained 65.9 per cent variation in canopy development (LAI) and 66.1 per cent variation in grain yield of Pea cultivars. Heat use efficiency with respect to pod and grain was found higher for V2 followed by V1 and V3 due to higher dry matter production under V2. It was found higher in case of earlier sown crop than late sown. A decreasing trend was observed in radiation use efficiency with delayed sown crop. Among varieties the radiation use efficiency was higher in V2 (PB-89) followed by V1 (Azad-P1) and V3 (ESP 111) in respect of row orientation, the highest radiation use efficiency was recorded in N-S as compared to E-W sown crop at flowering, pod formation and maturity. The soil temperature, temperature within canopy, evapotranspiration, LAI, HI and dry matte was higher in N-S orientation compared to E-W orientation whereas, relative humidity was higher in E-W orientation than N-S in Pea cultivars.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810133728
dc.keywordspea crop , radiation and thermal use,physiological maturity,sowing for various phenophases of Peaen_US
dc.language.isoenen_US
dc.pages65en_US
dc.publisherUHF,NAUNIen_US
dc.subEnvironmental Scienceen_US
dc.subjectnullen_US
dc.themepea crop , radiation and thermal use,physiological maturity,sowing for various phenophases of Peaen_US
dc.these.typeM.Scen_US
dc.titleRADIATION AND THERMAL USE EFFICIENCY OF PEA CROP UNDER DIFFERENT ENVIRONMENTAL CONDITIONSen_US
dc.typeThesisen_US
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