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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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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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): 1727-1732
DOI: https://doi.org/10.20546/ijcmas.2018.702.209


Variation in Crop Developmental Rate of Grass Pea in Relation to the Agro-Climatic Factors
A. Ghosh*, S.A. Khan and M.K. Nanda
Department of Agricultural Meteorology and Physics, Bidhan Chandra Krishi Viswavidyalaya-741 252, West Bengal, India
*Corresponding author
Abstract:

One field experiment was conducted in the winter season of the year 2016-2017 to determine the effects of agro-climatic factors on crop developmental rate (CDR) of grass pea (Lathyrus sativus L.). CDR of a phenological stage is simply the reciprocal of the duration of that particular stage. Grass pea (variety: ‘Prateek’) was sown on nine different dates (26th October, 2nd November, 9th November, 16th November, 23rd November, 30th November, 7th December, 14th December and 21st December). Entire crop growing period was divided into four phenological stages viz. vegetative stage, reproductive stage, pod developmental stage and maturity stage. CDR during vegetative stage showed decreasing trend while during the later three stages CDR were found to increase gradually from first date of sowing to the last date of sowing. Results showed that Growing degree day (GDD), Heliothermal units (HTU) were positively correlated with CDR. Air and soil temperatures played significant beneficial role on CDR. Regression equations were developed by using SPSS 16.0 version for prediction of CDR. Regression analysis showed that the linear equations involving morning actual vapour pressure during reproductive phase and diurnal temperature range during maturity stage which could explain 98% and 98.9% of the total variability in CDR respectively.


Keywords: Correlation, Crop Developmental rate, Grass pea, Phenological stage, Regression
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How to cite this article:

Ghosh, A., S.A. Khan and Nanda, M.K. 2018. Variation in Crop Developmental Rate of Grass Pea in Relation to the Agro-Climatic Factors.Int.J.Curr.Microbiol.App.Sci. 7(2): 1727-1732. doi: https://doi.org/10.20546/ijcmas.2018.702.209