Mubasshir Ahmed1,*, S.M. Shahriar Parvej1, Sadia Afrin Jui1, Kamiliya Kader1, Ronzon Chandra Das1, Shaikat Mitra1, Md. Wahidul Islam2, Md. Mostansir Billah3, Md. Abdur Razzak Taohidi2, Md. Humayun Kabir4, Md. Shamim-Al-Mamun1, Atik Hasan5 and Umme Hafsa Timmi6
1Agronomy Division, Bangladesh Jute Research Institute, Dhaka-1207, Bangladesh; 2Genetics Resources and Seed Division, Bangladesh Jute Research Institute, Dhaka-1207, Bangladesh; 3Jute Seed Production and Research Centre, Nashipur, Dinajpur, Bangladesh; 4Farm Management Unit, Bangladesh Jute Research Institute, Dhaka-1207, Bangladesh; 5Breeding Division, Bangladesh Jute Research Institute, Dhaka-1207, Bangladesh; 6Fiber Quality Improvement Division, Bangladesh Jute Research Institute, Dhaka-1207, Bangladesh
*Corresponding author: hadi.sau@gmail.com
This study evaluated the performance of five Tossa jute (Corchorus olitorius L.) varieties across three agro-ecological zones in Bangladesh. The experiment was conducted in 2024 at Chandina, Faridpur, and Manikganj under four sowing dates to determine the optimal genotype and planting time for maximum fiber productivity. Significant variations were observed among genotypes and sowing times in terms of fiber yield and related agronomic traits. Among the varieties, BJRI Tossa Pat 9 (V5) consistently outperformed others across all locations, recording the highest fiber yield (3.08tha?¹), stick yield (6.48tha?¹), plant height (3.04m), and basal diameter (16.25mm). The effect of sowing time was also significant, with intermediate sowing dates (30 March and 10 April) producing superior results in all locations. The highest yields were recorded for the 30 March sowing at Faridpur (fiber yield: 3.56tha?¹; stick yield: 7.25tha?¹). Correlation analyses revealed strong positive associations among plant population, basal diameter, plant height, fiber yield, and stick yield, highlighting these traits as key contributors to overall productivity. These findings recommend BJRI Tossa Pat 9 and optimal sowing between late March and early April to maximize Tossa jute yield across diverse agro-climatic conditions in Bangladesh.