Impact of western disturbances on wheat (Triticum aestivum L.) crop in Punjab
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Date
2020
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Punjab Agricultural University, Ludhiana
Abstract
The present study entitled “Impact of western disturbances on wheat (Triticum aestivum L.)
crop in Punjab” was carried out using and analyzing historical data, conducting field
experiment and validating data using SPSS software. Data pertaining to historical weather
parameters were studied for different districts of Punjab- Amritsar, Ludhiana, Bathinda,
Ballowal, Faridkot and Patiala which showed that on an average for all the districts under
study maximum onset and withdrawal of monsoon was observed in October and May,
respectively. Further, total number of western disturbances was observed maximum in Day 1,
followed by Day 2 and decreases subsequently. In addition to this it was also found that
western disturbances was higher in January, February and March in comparison to other
months of the growing season mostly in all the districts. Field experiment was conducted for
two consecutive years during the rabi seasons of 2017-18 and 2018-19 at three locations,
namely, Ballowal Saunkri, Ludhiana and Faridkot. The experiment was replicated thrice in a
factorial split plot design with nine combinations of dates of sowing (25th October, 15th
November and 5th December) and three varieties (WH1105, Unnat PBW550 and PBW590) in
the main plots and two levels of irrigation (recommended and recommended± forecast based)
in the subplots. Crop phenology was observed by visual observations. Micrometeorological
parameters were recorded within the crop canopy at different phenological stages while
biometric observations were recorded at 20 days interval. The results revealed that crop
growth, yield and yield attributing characters were found highest under 15th November
sowing at all the locations. Cultivar PBW590 found out to be poor performer when compared
to other two varieties. Regression equations among different weather parameters and green
yield of wheat were developed using SPSS software for different districts of Punjab in which
R2 value ranged from 82.9 in Ludhiana to 99.9 in Bathinda. Further calibration and validation
of data resulted in minimal error.
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Citation
Satinder Kaur (2020). Impact of western disturbances on wheat (Triticum aestivum L.) crop in Punjab (Unpublished Ph.D. Dissertation). Punjab Agricultural University, Ludhiana, Punjab, India.