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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(2): 273-283
DOI: https://doi.org/10.20546/ijcmas.2018.702.036


Impact of Climate Variability on Seed Yield of Onion in Mid Hills of Himachal Pradesh, India
Manohar Lal1*, H.S. Kanwar2, S.C. Verma3, Hukum Chand4 and Abhay Sharma4
1Department of Seed Science and Technology
2Department of Vegetable Science
3Department of Entomology
4Department of Environmental Science, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) – 173 230, India
*Corresponding author
Abstract:

Present investigation was conducted at Dr. YS Parmar University of Horticulture and Forestry, Nauni (HP) to study the effect of changing climatic conditions on seed yield of onion (Allium cepa L.) in mid hills of Himachal Pradesh. The meteorological data (30 years) and onion seed yield data (26 years) were collected; correlation and regression analysis between various weather parameters (temperature, rainfall and relative humidity) and onion seed productivity was done for productivity trend analysis. Weather based crop yield forecast model equation was developed and crop yield was predicted with maximum accuracy of 69 per cent. The trend analysis revealed that onion seed productivity over the last 26 years showed a fluctuating pattern with an overall decreasing trend at the rate of 2.58 kg ha-1 per year. Climatic variability analysis indicated an increase in average temperature (0.60°C and 0.46°C) and decrease in total rainfall (57.02 mm and 183.14 mm) during 1995-2004 (decade-1) and 2005-2014 (decade-2), respectively over the baseline (1985-1994). Whereas, relative humidity (RH) showed an increase of 0.03% during first decade and decrease of 3.39% during second decade over the baseline. Thus it can be concluded that changing climatic conditions in mid hills of Himachal Pradesh negatively affected the seed production of onion.


Keywords: Climatic variability, Onion (Allium cepa L.), Seed yield
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How to cite this article:

Manohar Lal, H.S. Kanwar, S.C. Verma, Hukum Chand and Abhay Sharma. 2018. Impact of Climate Variability on Seed Yield of Onion in Mid Hills of Himachal Pradesh, India.Int.J.Curr.Microbiol.App.Sci. 7(2): 273-283. doi: https://doi.org/10.20546/ijcmas.2018.702.036