P. K. Sarkar
Principal Scientific Officer
IWM Division, BARI, Gazipur
M. S. Rahman
Scientific Officer
IWM Division, BARI, Gazipur
K. K. Sarker
Scientific Officer
IWM Division, BARI, Gazipur
M. S. Hassan
Principal Scientific Officer
IWM Division, BARI, Gazipur
The study was conducted at the research field of IWM Division, BARI, Gazipur, during the ‘Kharif 1’ season of 2008-2009. It was carried out with a view to evaluate the effect of water logging of different durations on the production of two sesame varieties BARI Til 2 and BARI Til 3. A significant response of sesame on water logging and its duration was observed for both the varieties. Seed yields were rapidly decreased as duration of logging increased. The trend of decrease in yield and deterioration of crop stand with water-logging was almost similar for both the varieties. Maximum yield decreases of 67.67% and 65.61% for continuous 36 hours of water logging were observed for BARI Til 2 and BARI Til 3, respectively. Significant effect of duration of water logging on other agronomic parameters of the two varieties was also observed in the study.
Water logging, Irrigation, Sesame yield
IWM Division, BARI, Gazipur
Crop-Soil-Water Management
The study was undertaken with the following specific objectives:
(i) To evaluate the effect of different water logging durations on sesame growth and yield
(ii) To investigate the varietal performance under temporary water logging conditions.
The study was conducted during the ‘Kharif 1’ season of 2008-2009 at the experimental field of Irrigation and Water Management Division, BARI, Gazipur. The experiment on sesame (cv. BARI Til-2 and BARI Til-3) was laid out with three replications. Water logging was imposed at two stages. The stages were vegetative (25-30 days after sowing) and flowering (55-60 days after sowing) stages. The water logging sequence contained four treatments. These were:
T1: Normal drainage practice (flat land drainage)
T2: Continuous water logging up to 12 hours
T3: Continuous water logging up to 24 hours
T4: Continuous water logging up to 36 hours
Sesame seeds were sown continuously on 24 April 2009 with a line to line spacing of 30 cm. The unit plot size was 4 m × 4 m. The fertilizer application rates were N125 P150 K50 S100 Zn45 Half of N in the form of urea and full of P, K, S and Zn in the form of TSP, MP, Gypsum and Zinc sulphate were applied during final land preparation. The remaining half of N was top dressed at 30 days after sowing. After plant establishment, excess seedlings were taken off keeping approximate plant to plant spacing of 5 cm. One irrigation was applied at 20 DAS in general to all plots for proper plant establishment and to avoid probable water stress during the drought period. Water logging was imposed as per schedule at 30 and 60 days after sowing. The crop was harvested on 7 July 2009. All necessary agronomic data were collected and analyzed statistically.
Annual Research Report 2009, IWM, BARI, Gazipur
The results show that sesame is very much susceptible to water logging. Yield decreases very rapidly with the logging period. More than 65 percent yield was decreased with a continuous logging of 36 hours. Even a short duration, logging can decrease the yield reasonably. So water logging must be avoided as much as possible to obtain a better yield from sesame.
Report/Proceedings