National Academy of Agricultural Sciences (NAAS)
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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 |
In the present study attempts have been made to identify a most important weeks for wheat yield at district level. Weekly data of 18 meteorological weeks on (47th to 52nd weeks on first year and 1st to 12th Standard Meteorological Weeks, SMW for 2nd year) on minimum temperature over a span of 20 year (1995 to 2015) has been used along with the annual wheat production data (used as detrened yield for fitting of model) for Faizabad district of eastern U.P. Distribution of temperature has been recorded for wheat crop. Yield of wheat crop was recorded yearly for the study. Percent deviation has been calculated for the every week. The effect of temperature has been calculated for every week and joint effect of all weeks. The effect of temperature for every week has been calculated as correlation coefficient and regression coefficient (R2) on wheat yield. The model for every week has been developed and testing through F-test. The pattern of temperature has also been depicted through graph. The first week of crop period has been found as most important week i.e. 61% followed by last week 60% (in terms of Coefficient of determination, R2).
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