On-farm Participatory Assessment of Short and Medium Duration Rice Genotypes in South-western Punjab


Keywords:
Economic analysis, Production efficiency, Short duration rice varieties, Technology index, Water use efficiency, Yield gapsAbstract
The study reports the performance of short and medium duration rice genotypes (viz. PR-126, PR-122 and PR-Â 124) via front line demonstrations (FLDs) on low fertility soils irrigated with poor quality underground water in
south-western Punjab, India. A total of 550 FLDs were conducted during two consecutive years (kharif 2018 and 2019) at farmers’ fields in different villages. The average rice grain yield of PR-122 was significantly higher
by ~11.1 and 14.5 per cent, compared with PR-126 and PR-124, respectively. The mean net returns (MNRs) were significantly higher for PR-122 by Rs.12,778/- ha-1 and Rs. 16,818/- ha-1, compared with PR-126 and PR-124, respectively. PR-122 had significantly higher B:C, compared with the other two genotypes in the south-western Punjab. The yield gap assessed from average yield potential was higher for PR-124 and the lowest for PR-126, while for PR-122 in between. However, the production efficiency of 54.5 kg ha-1 day-1 was higher for PR-126, compared with PR-124 (50.0 kg ha-1 day-1) and PR-122 (50.6 kg ha-1 day-1). The economic efficiency of PR-124 was lower by ~ Rs. 111.9 ha-1 day-1 and Rs. 43.6 ha-1 day-1 than the PR-126 and PR-122, respectively. The water use efficiency was higher for PR-126, compared with other two genotypes. The extension gap varied between -0.59 and -1.21 Mg ha-1 for three genotypes; with highest gap for PR-126 and the lowest for PR-124. The technology index varied between 5.6 and 14.8 per cent, and was the highest for PR-124 and the lowest for PR-
122.
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The manuscripts once accepted and published in the Indian Journal of Extension Education will automatically become the property of the Indian Society of Extension Education, New Delhi. The Chief Editor on behalf of the Indian Journal of Extension Education holds the copyright.