IMPACT OF WEATHER AND ORCHARD MANAGEMENT PRACTICES ON APPLE PRODUCTIVITY AND SOIL HEALTH IN KULLU DISTRICT OF HIMACHAL PRADESH

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dc.contributor.advisorMOHINDER, SINGH
dc.contributor.authorSHARMA, PRIYANKA
dc.date.accessioned2017-12-14T07:09:43Z
dc.date.available2017-12-14T07:09:43Z
dc.date.issued2017-12
dc.description.abstractABSTRACT The present investigation entitled “Impact of weather and orchard management practices on apple productivity and soil health in Kullu district of Himachal Pradesh” was conducted during the years 2015 and 2016 at four altitudinal gradients/locations, viz. Bajaura (1090m amsl), Seobagh (1189m amsl), Naggar (1880m amsl) and Arsu (2080 m amsl), on three commercial apple varieties viz. Red Delicious, Royal Delicious and Golden Delicious. The different phenological stages (Silver tip, Green tip, Pink bud, Full bloom and Petal fall) in apple were observed at earliest at Bajaura, where the apple crop experienced higher average temperature compared to other locations. Minimum number of days for silver tip stage (54.22 days with 349.22 GDD), green tip stage (71.67 days with 484.00 GDD), pink bud stage (86.94 days with 662.54 GDD), full bloom stage (93.89 days with 749.67 GDD) and for petal fall stage (99.00 days with 807.48 GDD) were observed at Bajaura, followed by Seobagh, Naggar and Arsu. Among different cultivars, Red Delicious cultivar took minimum number of days for silver tip stage (56.58 days and 264.93 GDD), green tip stage (74.92 days with 387.44 GDD), pink bud stage (89.00 days with 526.85 GDD), full bloom stage (95.71 days with 598.33 GDD) and for petal fall stage (101.58 days with 662.14 GDD), followed by Royal Delicious and Golden Delicious. The studies on long term impact of weather parameters on apple productivity revealed that the minimum temperature during dormancy stage (Jan- March) exhibited positive and significant correlation with productivity of apple. Whereas, maximum temperature during April- June (flowering, fruit set and fruit development stage) showed negative and significant impact on apple productivity. The studies on effect of management practices and orchard aspect on soil health at different locations revealed maximum soil pH (6.77) and OC (2.92 %) in low input orchards when compared with high input orchards. Among different locations highest soil pH and EC were found in Arsu, followed by Naggar, Seobagh and Bajaura. High input orchards showed higher values of soil macronutrients, N (330.4 kg/ha), P (36.64 kg/ha) and K (287.4 kg/ha) than low input orchards. Soil micronutrients Fe, Zn and Cu were also found higher in high input orchards. In low input orchards, soil microbial count and biomass were recorded higher than high input orchards. The orchards in south west aspect recorded higher N (309.7 kg/ha) and Mn (27.60 mg/kg) as compared to orchards in north east aspect. Whereas, other soil parameters were found higher in north east than south west aspect.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810037543
dc.keywordsapple productivity and soil health,Impact of weather and orchard management practices, Kullu district of Himachal Pradeshen_US
dc.language.isoenen_US
dc.pages117+XXIen_US
dc.publisherUHF,NAUNIen_US
dc.subEnvironmental Scienceen_US
dc.subjectnullen_US
dc.themeorchard management practices,KULLU,HPen_US
dc.these.typePh.Den_US
dc.titleIMPACT OF WEATHER AND ORCHARD MANAGEMENT PRACTICES ON APPLE PRODUCTIVITY AND SOIL HEALTH IN KULLU DISTRICT OF HIMACHAL PRADESHen_US
dc.typeThesisen_US
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