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Forty three vegetable amaranth (Amaranthus tricolor L.) genotypes selected from different eco-geographic regions of Bangladesh were evaluated during 3 years (2012-2014) for genetic variability, heritability and genetic association among mineral elements and quality and agronomic traits in randomized complete block design (RCBD) with five replications. The analysis showed that vegetable amaranth is a rich source of K, Ca, Mg, proteins and dietary fibre with average values among the 43 genotypes (1.014%, 2.476%, 2.984, 1.258% and 7.81%, respectively). Six genotypes (VA13, VA14, VA16, VA18, VA26, VA27) showed a biological yield >2000 g/m2 and high mineral, protein and dietary fibre contents; eleven genotypes had high amount of minerals, protein and dietary fibre with above average biological yield; nine genotypes had below average biological yield but were rich in minerals, protein and dietary fibre. Biological yield exhibited a strong positive correlation with leaf area, shoot weight, shoot/root weight and stem base diameter. Insignificant genotypic correlation was observed among mineral, quality and agronomic traits, except K vs. Mg, protein vs. dietary fibre and stem base diameter vs. Ca. Some of these genotypes can be used for improvement of vegetable amaranth regarding mineral, protein and dietary fibre content without compromising yield loss.

Carrot (Daucus carota L.) is an important biennial root vegetable crop in Bangladesh. But Baby carrot having the higher nutritional status is a new crop of Bangladesh. Different germplasms of baby carrots have strong interaction with plastic mulches for growth, yield and quality. The experiment was conducted at the Horticulture Farm of the Department of Horticulture, Bangladesh Agricultural University, Mymensingh from the period of October 2023 to February 2024 to study the effects of plastic mulches on growth, yield and quality of baby carrot germplasm. The experiment consisted of five baby carrot germplasms namely G1 (PI L1408), G2 (Nantes 5), G3 (261650), G4 (PI 1408) and G5 (Upper cut) and five coloured plastic mulches viz., T0 (control), T1 (black), T2 (silver), T3 (blue) and T4 (red). The two-factor experiment was laid out in Randomized Complete Block Design with three replications. Significant variations were observed due to interaction between germplasms and plastic mulches on all the growth, yield and quality parameters studied. At harvest, maximum root length (29.07 cm) was obtained from PI L1408 with black plastic mulch, maximum root diameter (4.19 cm), root weight (174.45 g), yield (27.06 t/ha), marketable yield (26.81 t/ha) were obtained from Nantes 5 with black plastic mulch, maximum branched root (11.60%) was recorded from PI 262650 with control and maximum leaf weight (65.63 g) was found from Nantes 5 with blue plastic mulch. On the contrary, minimum root length (15.74 cm) was recorded from Upper cut with red plastic mulch, minimum root diameter (2.06 cm), root weight (40.43 g), yield (12.36 t/ha), marketable yield (12.25 t/ha) were obtained from PI 1408 with control and maximum leaf weight (24.07 g) from PI 1408 with blue plastic mulch treatment. Therefore, interaction between Nantes 5 with black plastic mulch was found to be better in respect of growth, yield and quality of baby carrots. [Fundam Appl Agric 2024; 9(3.000): 168-179]

An experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh, during the period of November 2021 to February 2022. The experiment consisted of two factors, such as factor A: three varieties of broccoli i.e. V1: Early You, V2: Barbara, V3: Green Crown and factor B: four levels of micronutrients i.e. T0: control, T1: Boron @ 3 kg/ha, T2: Zinc @ 2 kg/ha, T3: Boron + Zinc @ (3+2) kg/ha. The two-factor experiment was laid out in Randomized Complete Block Design with three replications. Variety and micronutrients influenced significantly on most of the parameters under the study. In case of variety, the highest curd yield (13.35 t/ha) was found from V3 (Green Crown) and the lowest curd yield (11.12 t/ha) was found from V1 (Early You). V2 (Barbara) showed higher dry matter content of broccoli curd, which is 15.72%. On the other hand, V¬1 (Early You) showed lower dry matter content, which is 13.34%. For micronutrients, T3 (Boron +Zinc @3+2 kg/ha) performed the highest in respect of curd yield (19.37 t/ha) and the lowest (6.32 t/ha) was from T0 (control). T3 (Boron+Zinc @3+2kg/ha) showed higher dry matter content (13.01%), whereas T0 (control) showed the least (11.02%). For combined treatment, the highest curd yield (21.61t/ha) was obtained from V3T3 (Green Crown and Boron +Zinc @ 3+2 kg/ha micronutrient dose) and the lowest curd yield (5.23 t/ha) from V0T0 (Early You and control). V2T3 (Boron+ Zinc @3+2 kg/ha with Barbara variety) produced the highest dry matter content of curd, which is 17.34%. On the other hand, the lowest dry matter content of broccoli curd is provided by V1T0 (Early You variety with control) treatment combination which is 12.49%. Therefore, it can be concluded that V3 (Green Crown) along with Boron+Zinc @ 3+2 kg/ha and V2 (Barbara) along with Boron+Zinc @ 3+2 kg/ha were found to be the best in respect of yield and dry matter content of broccoli, respectively, compared to other treatments. [Fundam Appl Agric 2023; 8(4.000): 649-654]

Background: Soybean is one of the major oil seed crops in Bangladesh. Combine application of Rhizobium inoculation and phosphorus fertilizer could be an important factor to get maximum yield and quality of soybean. Objective: To evaluate the effect of Bradyrhizobium inoculum and levels of phosphorus on yield and quality of soybean varieties. Methodology: The experiment evaluated three factors namely, varieties, Bradyrhizobium inoculum and phosphorus levels. The three varieties were: i) Binasoybean-1 ii) Binasoybean-2 and iii) BARI Soybean-6. Bradyrhizobium inoculum levels were: i) control (no inoculum), ii) 50% of recommended dose (RD) (25 g kg-1 seed) iii) 100% of RD (50 g kg-1 seed). The phosphorus levels were: i) control (no phosphorus) ii) 50% of RD (18 kg ha-1), iii) 100% of RD (36 kg ha-1). The experiment was laid out in a randomized complete block design with three replications. Data were recorded on yield, yield contributing characters and quality parameters of seeds. Results: Binasoybean-1 performed superiorly in terms of all the yield and yield contributing characters. Application of 100% of RD of Bradyrhizobium inoculum and application of 100% of RD of phosphorus also showed superior performance. Considering the interaction effect, the findings of the study indicate that Binasoybean-1 responded well to the application of 100% of RD of phosphorus and 100% of RD of Bradyrhizobium and gave maximum seed yield. The highest protein content (39.21%) was found in Binasoybean-2, 50% of RD of phosphorus with no Bradyrhizobium inoculum and the highest oil content was found (19.33%) in Binasoybean-2, no phosphorus and 50% of RD of Bradyrhizobium inoculum. Implication: Binasoybean-1 with the application of 100% of RD of phosphorus and 100% of RD of Bradyrhizobium might be recommended to obtain higher yield soybean in Bangladesh. Conclusion: From this study it may be concluded that recommended dose of phosphorus and Bradyrhizobium is beneficial for a higher yield of Binasoybean-1.