Screening of Onion (Allium cepa L.) Genotypes for Acid Tolerance Based on Morpho-physiological and Yield Associated Traits

Onion is one of the most valuable vegetable crops grown all over the world, but its production is severely affected by abiotic stresses like drought, waterlogging, and the acidic nature of the soil. An experiment was conducted to study the morphological and yield contributing characters of four onion genotypes (Indian Onion-1, Indian Onion-2, Indian Onion-3, and Local onion) in the acidic soil condition at Sylhet region, Bangladesh. The experiment was laid out in a randomized complete block design with three replications. Results showed that four genotypes of onion differed significantly for all the morphological and yield characters. The total yield was positively correlated with plant height, bulb fresh weight, bulb diameter, bulb length, leaf sheath fresh weight, leaf sheath dry weight, root fresh and dry weight. Considering yield and yield attributing traits, Indian Onion-2 performed better in acidic soil and had the highest in bulb fresh weight (72.60 g), total yield (1.78 t.ha-1), and moisture content, followed by Indian Onion-3. Therefore, Indian Onion-2 can be selected as the best genotype for acidic soil in the Sylhet region, Bangladesh

Evaluation of Growth Performance and Economic Return Analysis of Bathua (Chenopodium album) Genotypes

Bathua (Chenopodium album), a fast-growing weedy annual plant under the genus Chenopodium, is valuable for its high nutritional, medicinal and economic values as a leafy vegetable. The present study was carried out to evaluate the growth performance and economic returns of bathua genotypes in acid soil at Sylhet, Bangladesh. The experiment was laid out in a randomized complete block design with three replications. Morphological and growth parameters were recorded at the final harvest. The maximum plant height, number of branches per plant, fresh weight of inflorescence and leaf length were recorded in local bathua 1(110.5 cm, 65.33, and 8.93 g, respectively). The maximum fresh weight of leaves per plant, the maximum dry weight of leaves per plant were recorded in local bathua 2 (39.92 g and 8.79 g respectively). Results revealed that the studied morphological parameters including plant height, fresh and dry weight of leaves per plant, fresh and dry weight of stem per plant, fresh and dry weight of inflorescence per plant, stem base diameter, number of leaves per plant, number of branches per plant and leaf length influences the foliage yield of bathua. The highest foliage yield (9.20 t.ha-1), total gross return (Tk.552000.ha-1), net return (Tk.367000.ha-1) and BCR (2.98) were found in local bathua 1. From the findings of the present study, local bathua 1 could achieve higher productivity and profitability in acid soils of Sylhet, Bangladesh