Abstract

Author:
Md. Ibrahim Ali, M. H. Rahman, M. M. Husain, Shah Mostaq Ahamma Chowdhury, Mohammad Joyel Sarkar, Md. Mahbubul Alam, Md. Mahmudul Hasan Manik, Md. Shah Abdullah Al Mamun, Alif Hossain, Motabber Rahman

Doi: 10.26480/trab.01.2026.01.07

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

First experiment on optimization of rice yield within intensive cropping systems is critical for sustaining food security in Bangladesh. To address this, an experiment was carried out at the farmer’s field in Nalitabari during the Boro season of 2023-24. The objective was to identify yield-limiting factors and evaluate the performance of BINA-released boro rice varieties in the Mustard (Binashorisha-11)-Boro (Binadhan-24/BINA dhan25)-T. aman (Binadhan-17) cropping sequence. Four rice varieties-Binadhan-10, Binadhan-14, Binadhan-24, and BINA dhan25 were arranged in a randomized complete block design with three replications. Binadhan-24 exhibited superior yield performance, recording 8.4 t ha⁻¹, which was statistically higher than other varieties, while Binadhan-10 ranked second with 7.63 t ha⁻¹. The results suggest that Binadhan-24 is best suited for maximizing yield potential within the Mustard-Boro-T. aman cropping system in Nalitabari. Second experiment on yield optimization within intensive cropping systems an experiment was conducted during the Boro season of 2023-24 at the farmer’s field in Gomostapur, Chapainawabganj, under the guidance of the BINA Substation, Chapainawabganj. The objective was to identify yield-limiting factors and evaluate the performance of BINA-released boro rice varieties in the Mustard–Boro–T. aman sequence. Three rice varieties-Binadhan-14, Binadhan-24, and BINA dhan25 were evaluated. Binadhan-24 exhibited superior yield performance (7.13 t ha⁻¹), which was significantly higher than BINA dhan25 (6.7 t ha⁻¹), while Binadhan-14 yielded the lowest. The superior yield of Binadhan-24 was largely attributed to an optimal combination of seedling management and fertilizer practices. Binadhan-24 is the most suitable variety for maximizing yield potential under the Mustard-Boro-T. aman cropping pattern in Chapainawabganj, thereby contributing to farm-level productivity and regional food security. Third experiment for optimizing rice yield under diverse cropping systems an experiment was carried out during the Boro season of 2023-24 at the farmer’s field in Subornochar, Noakhali, under the supervision of the BINA Substation, Noakhali. The objective was to identify yield-limiting factors and assess the performance of BINA-released boro rice varieties. Three varieties Binadhan-10, Binadhan-24, and BINA dhan25 were evaluated in a randomized complete block design (RCBD) with three replications. BINA dhan25 achieved the highest grain yield (6.69 t ha⁻¹), followed by Binadhan-24 (6.30 t ha⁻¹). The superior yield of BINA dhan25 was attributed to effective nutrient management and maintenance of seedling age at 30 days, which enhanced filled grain production per panicle. The study underscores that adoption of BINA dhan25, along with proper agronomic practices, can maximize rice yield in the Noakhali region, contributing to farm-level productivity and food security. Fourth experiment for maximizing the yield potential of rice varieties is crucial for enhancing productivity in the haor ecosystems of Bangladesh. To evaluate the performance of BINA released boro rice varieties, a field experiment was conducted at the BINA Sub-station farm, Sunamganj, during the Boro season of 2023–24. Three popular varieties Binadhan-10, Binadhan-24, and BINA dhan25 were tested in a randomized complete block design (RCBD) with three replications. Significant differences among the varieties was found, Binadhan-10 recorded the highest grain yield (7.58 t ha⁻¹), followed by BINA dhan25, whereas Binadhan-24 produced the lowest yield (6.81 t ha⁻¹) despite exhibiting superior yield components, such as a higher number of effective tillers and greater 1000-grain weight. This discrepancy highlights the complex interaction of varietal traits and management practices in determining yield outcomes. The findings suggest that Binadhan-10, Binadhan-24, BINA dhan25 is the most promising variety for the Sunamganj haor region, in terms of short duration and optimized agronomic management. Fifth experiment on yield maximization of BINA released boro rice varieties at the farmer’s fields in Gafargaon, Fulbaria, Sadar Mymensingh, and Tarail Kishoreganj during the Boro season of 2023-24 to evaluate the yield potentials of the BINA-released rice variety BINA dhan25 under different cropping systems. Results indicated that the highest yield for BINA dhan25 was observed at Chongbiroi, Gafargaon, Mymensingh, with a yield of 6.68 t ha⁻¹, followed by 6.48 t ha⁻¹ at Boyra, Sadar Mymensingh. In the T. aman – Fallow – Boro cropping pattern, BINA dhan25 yielded the lowest at 6.26 t ha⁻¹. These findings highlight the yield potential of BINA dhan25 in various cropping systems, emphasizing its adaptability and performance under specific conditions when it was transplanted mid January and 35 days old seedling age.