{"title":"喜马偕尔邦山区气候因子对苹果作物冷单位积累及产量的影响","authors":"P. Priyanka, N. Forestry","doi":"10.18782/2582-2845.8485","DOIUrl":null,"url":null,"abstract":"The present investigation was carried out for during 2016-2017 for Kullu and Shimla district of Himachal Pradesh. The results revealed that cumulative chill units of Kullu showed a decreasing trend of the order of 6.61 CU/year. Month-wise chill units accumulation (Nov-Feb) revealed maximum decrease of 2.54 CU for the month of February. Similarly, the cumulative chill units of Shimla also showed decreasing trend of the order of 10.9 CU/year and overall decrease of 337.9 CU over the last thirty-one years. The maximum monthly decrease of 5.19 CU for the month November at Shimla district. The average number of chill units available for the apple crop followed a decreasing trend as 1182 CU at Shimla followed by 558.29 CU at Kullu. The productivity of last five years (20012-2017) showed a decreasing trend of the order of 0.11 ton/ha/year for Kullu and 0.186 ton/ha/year for Shimla.","PeriodicalId":13334,"journal":{"name":"Indian Journal of Pure & Applied Biosciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Climatic Factors on Chill Units Accumulation and Productivity of Apple Crop in Mountainous Region of Himachal Pradesh\",\"authors\":\"P. Priyanka, N. Forestry\",\"doi\":\"10.18782/2582-2845.8485\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The present investigation was carried out for during 2016-2017 for Kullu and Shimla district of Himachal Pradesh. The results revealed that cumulative chill units of Kullu showed a decreasing trend of the order of 6.61 CU/year. Month-wise chill units accumulation (Nov-Feb) revealed maximum decrease of 2.54 CU for the month of February. Similarly, the cumulative chill units of Shimla also showed decreasing trend of the order of 10.9 CU/year and overall decrease of 337.9 CU over the last thirty-one years. The maximum monthly decrease of 5.19 CU for the month November at Shimla district. The average number of chill units available for the apple crop followed a decreasing trend as 1182 CU at Shimla followed by 558.29 CU at Kullu. The productivity of last five years (20012-2017) showed a decreasing trend of the order of 0.11 ton/ha/year for Kullu and 0.186 ton/ha/year for Shimla.\",\"PeriodicalId\":13334,\"journal\":{\"name\":\"Indian Journal of Pure & Applied Biosciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-12-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Indian Journal of Pure & Applied Biosciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.18782/2582-2845.8485\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Journal of Pure & Applied Biosciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.18782/2582-2845.8485","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of Climatic Factors on Chill Units Accumulation and Productivity of Apple Crop in Mountainous Region of Himachal Pradesh
The present investigation was carried out for during 2016-2017 for Kullu and Shimla district of Himachal Pradesh. The results revealed that cumulative chill units of Kullu showed a decreasing trend of the order of 6.61 CU/year. Month-wise chill units accumulation (Nov-Feb) revealed maximum decrease of 2.54 CU for the month of February. Similarly, the cumulative chill units of Shimla also showed decreasing trend of the order of 10.9 CU/year and overall decrease of 337.9 CU over the last thirty-one years. The maximum monthly decrease of 5.19 CU for the month November at Shimla district. The average number of chill units available for the apple crop followed a decreasing trend as 1182 CU at Shimla followed by 558.29 CU at Kullu. The productivity of last five years (20012-2017) showed a decreasing trend of the order of 0.11 ton/ha/year for Kullu and 0.186 ton/ha/year for Shimla.
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