Selection of Suitable Rapeseed and Mustard Varieties in Saline Prone Area in Bangladesh

Abstract

The experiment was conducted with twenty-four rapeseed and mustard varieties at the Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Benarpota, Satkhira, Bangladesh, to identify suitable varieties for saline-prone areas. The experimental station was situated at 22.716? North latitude and 89.075? East longitude in the southwestern part of Bangladesh with an elevation of 3.96 meters above sea level. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. It was conducted consecutively for two years during the Rabi seasons (October to March) in 2017-2018 to 2018-2019. The lowest salinity of the field was recorded at the seed sowing period, and it was found to be the highest at the harvesting period. The salinity level was 3.5 to 12.6 and 2.9 to 11.4 dS m ? 1 during the consecutive two years. Among the varieties, twelve were Campestris (BARI Sarisha-14, BARI Sarisha-15, Binasarisha-10, Binasarisha-6, BARI Sarisha-9, BARI Sarisha-17, Binasarisha-2, Binasarisha-1, Satkhira local, Tori-7 (control), BARI Sarisha-12, and Kalyania), seven Napus (BARI Sarisha-13, Binasarisha-4, Binasarisha-9, Binasarisha-3, Binasarisha-5, BARI Sarisha-7, BARI Sarisha-8), and five varieties from the Juncea group (BARI Sarisha-11, Binasarisha-7, Binasarisha-8, BARI Sarisha-16, BARI Sarisha-10). Out of the tested varieties, BARI Sarisha-16 (V 18 ) produced the highest seed yield in saline soil at Satkhira, Bangladesh, and BARI Sarisha-11 (V 15 ), Binasarisha-8 (V 16 ) provided a statistically similar seed yield to BARI Sarisha-16 (V 18 ). So these three varieties might be better for cultivation in the coastal saline soil of Bangladesh.