Peanut is a crucial source of edible oil and nutrients. Five peanut genotypes' yield and quality parameters were assessed to select superior genotypes. The experiment was conducted in Bangladesh Institute of Nuclear Agriculture HQ's experimental field, Mymensingh-2202. Correlation study identified significant positive correlation of pods plant-1, kernel weight and shelling % with pod yield. Considering yield and oil content, the genotype B6/282/80 performed the best, with a yield of 2.25t/ha and 54.6% edible oil content. Oleic acid/Linoleic acid (O/L) ratio and iodine content were also higher in B6/282/80, followed by B6/282/63. RM-Kha-19 contains the maximum amount of protein (32.42%), while crude fibre and carbohydrate content were the highest in Binachinabadam-4. B6/282/64 possessed the maximum moisture (6.2%), while B6/282/80 had the highest amount of ash (2.35%). The principal component analysis identified that the first two principal components explained about 74.93% of the total variation. Biplot revealed that B, crude fibre, and ash content were higher in Binachinabadam-4. The genotype B6/282/63 was superior in K, S, Fe, moisture, and carbohydrate content. Genotype B6/282/80 was the best genotype for P content. Ca, Cu, N, Mg and Zn content was higher in the RM-KHA-19 genotype. Combining all the energy sources, the genotype B6/282/80 provides the maximum energy, i.e., 628.4 Kcal/100g. Considering the studied traits, the B6/282/80 has the potential to be set on a multilocational trial for the detection of stability as a new variety.

A field experiment was executed under sub-tropical conditions during the period from April 2020 to March 2021 to observe the effects of bulb sizes on the flower and bulb yield of tuberose cv. single. The experiment consisted of three bulb sizes namely, a small-sized bulb (1.0-1.5 cm in diameter); a medium-sized bulb (1.6-2.5 cm in diameter) and large sized bulb (2.6-3.0 cm in diameter). Results disclosed that plant height, the number of leaves plant-1, leaf length and breadth, the number of lateral shoots plant-1, production of bulbs plant-1, bulb length and diameter, bulb yield both plant-1 and hectare-1, length of rachis, spike length and diameter, the number of florets spike-1 and flower yield both spike-1 and hectare-1 were increased with the increment of bulb sizes. The longest plant, highest leaf production, larger leaf, bulb production plant-1, bulb size and bulb yield both plant-1 and hectare-1, rachis length, spike length and diameter, number of flowers spike-1, flower yield both spike-1 and hectare-1 were recorded in large sized mother bulb. In contrast, the lowest above the studied parameters were obtained in small-sized mother bulbs. So, large-sized bulbs can be used for commercial production of flowers and bulb of single cv. of tuberose.

Sweet pepper is one of the most important vegetable crops and its demand is increasing day by day in Bangladesh indicating need for varietal improvement program. Eleven sweet pepper genotypes from native and exotic sources were characterized for twenty-five morphological traits using vegetative and reproductive appearances at Bangladesh Institute of Nuclear Agriculture, Mymensingh, from November 2021 to March 2022. Noticeable variation was observed among twenty-five qualitative traits (25) studied. Nineteen (19) traits showed undisputable variation. Higher number (9 genotypes) of light purple, purple and dark purple color at node indicated high amount of anthocyanin content. Leaf shape is used as genotypes identifier at vegetative stage and three types of leaves were found with dark green color (6 genotypes) that is highly correlates with yield. In case of flower, 100% white color corolla indicates higher number of fruit set. Entire genotypes exhibited one or more exclusive characters especially fruit shape and color which could be used as important breeding materials. CKN-1 and CKN-8 had the highest yield per plant (367.6 and 362.04 grams, respectively), making them potentially good for cultivation, whereas plant height, fruit number, weight, length, and diameter varied among the selected genotypes. A positive Correlation was observed among the traits and genetic distance value ranged from 0.17 to 0.68 among the selected genotypes. However, selection of genotypes with desirable morphological characteristics can be used for their exploitation of future research program. SAARC J. Agric., 21(1): 13-24 (2023)

Two advanced lines: BR8693-8-4-2-1 and BR8693-17-6-2-2, along with BRRI dhan49 (S. Ck) and BRRI dhan33 (R. Ck) as checks were tested at farmers’ field in eight locations such as West Byde (BRRI Gazipur), Khulna (Dumuria), Habiganj (Sadar), Chapainawabganj (Gomostapur), Rangpur (Sadar), Feni (Dagonbhuyan), Chattagram (Hathazari) and Barishal (Sadar) during the season of  Transplanting Aman 2018. The trial was replicated three times in each location. The unit plot size was 17.94 m2 (4.6m x 3.9m). Seeding emergence for eight locations varied from 11-17 July 2018. Seedling age varied from 25-30 days among the locations. Seedlings were transplanted at 20 cm x 15 cm spacing. NPKS and Zn fertilizers were applied at the rate of 0, 15, 50, 12 and 3.6 kg ha-1, respectively. All fertilizers except urea were applied as basal whereas, urea was applied in 3 equal splits at 10, 25 and 40 days after transplanting (DAT) Other standard management practices were followed as and when necessary. No insecticide was used because the two advanced lines were insect resistant and diseases were not controlled (to identify susceptibility and tolerance level of lines). Date of seeding, transplanting, flowering and maturity, lodging tolerance, pest and disease incidence, phenotypic acceptance at vegetative and ripening stage, yield and yield components were recorded. Among the two advanced lines, BR8693-8-4-2-1 line was statistically significant from BR8693-17-6-2-2, BRRI Dhan49 and BRRI Dhan33 respectively and the disease reaction, farmers’ opinion, and special character of insect resistant, BR8693-8-4-2-1 was found to be superior for further variety trial. The main purpose of the experiment is to recommended insect resistant rice genotype for proposed variety trail. For yield estimation, 9 m2 sample area from each plot was harvested at maturity and grain yields were adjusted to 14% moisture content.

Despite the fact that people are more familiar with its drawbacks, water hyacinth has a variety of uses. This study aims to assess local inhabitants' opinions of water hyacinth and its sustainable, environmentally beneficial uses. In order to perform the study properly, we moved on to the study areas that are closer to Roa beel and a questionnaire with seven components and seven parameters was used. The Roa Beel is situated in the Chandpur Union neighborhood of the Kishoregonj district's Katiadi Upazila, Kishoreganj, Bangladesh. During the rainy season, excessive water hyacinth was found in the study region, and people of the villages of Sheker Para, Purbo Para, and Modinas Para in the Kishoregonj district were surveyed. The study assesses the locals' perceptions of their knowledge and understanding of water hyacinth, their management techniques, the benefits and drawbacks of water hyacinth, and their actual use of it in their daily lives as well as in various sectional activities like fishing, livestock rearing, agricultural farming, particularly in floating agricultural practices, and for industrial purposes. A surplus of water hyacinth in the beel can be utilized to create a promising industry for the region, especially if it is converted into affordable, environmentally acceptable animal feed, bio-fertilizer, and biogas. Undoubtedly, this will improve local environmental management efforts and provide more opportunity for local unemployed people to find employment.