Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
increase of about 23 % observed in year 2017. Also, in year 2016 a significant increase in yield
of about 26 % over conventional variety were observed. The average yield increase of 26.92
percent was observed over the period.
Year
Demo
Gross
Cost
Economic parameters of demonstration
Demo
Gross
Return
Demo
Net
Return
Demo
BCR
Local
Gross
Cost
Local
Gross
Return
Local
Net
Return
Local
BCR
2016 28000 54400 26400 1.94 25500 43200 17700 1.69
2017 27000 51200 24201 1.89 26500 41600 15100 1.56
2018 27000 59500 32500 2.2 25000 45500 20500 1.82
A significant increase in net return and benefit cost ratio were observed in comparison of local
variety over the period. In year 2018 the highest net returns of Rs. 32500.00 per hectare under
demonstration was observed and it was about 58 % higher than the return from local variety
which was Rs. 20500.00 per hectare. The benefit cost ratio of demonstration was also
significantly higher than the local variety.
Conclusion
The above results revealed that the performance of demonstrated drought tolerant rice variety
Sahbhagi Dhan was superior over the local variety Bhutraj due to the highly drought tolerant
capacity and short duration with more productivity. The demonstrated variety Sahbhagi dhan
was superior on all the major parameters. In Koshi region, Shabhagi dhan has shown its
potential to dominate and replace the local variety because of higher yield and enhanced net
return per hectare.
T3-16P-1414
Drought Tolerant and High Yielding Groundnut Varieties for Rainfed
Ecosystem in Perambalur District
M. Punithavathi, V. E. Nethaji Mariappn, P.Dominic Manoj and V. Sangeetha
ICAR – Krishi Vigyan Kendra
Hans Roever Campus, Valikandapuram, Perambalur District, Tamil Nadu - 621115
kvk.perambalur@icar.gov.in; kvkroever@gmail.com
Groundnut (Arachis hypogaea L.) is an important Oilseed crop mainly cultivated under rainfed
condition in Perambalur district of Tamil Nadu. In present investigation, three Groundnut
varieties namely Dharani, Co7 and TMV 7 were used to assess the drought tolerance and
yielding potential. Erratic rainfall and frequent drought during the crop growth period,
Groundnut yield are generally low under rainfed condition. Drought during the critical crop
Managing genetic resources for enhanced stress tolerance
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