ABSTRACT
An experiment was conducted to characterize and to screen out in morphological variation of aromatic landraces at two locations of Rangpur region during the Aman season in 2022-23. Twenty aromatic landraces along with one known check were used at two locations i.e. BINA sub-station farm, Rangpur and farmer’s field at Rangpur. The ALR genotypes are irradiated materials from BINA, Mymensingh and the BBRM genotypes including a check developed by Bangobondhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur. Three local genotypes were also used as local germplasm. The genotype ALR-6 had taller (164.10 cm) and BBRM-2 produced the highest number of total tiller hill-1 (20.9) than other genotypes while BBRM-7 took the highest days for maturity (146.50 days). However, the genotype ALR-3 produced higher number of filled grains panicle-1 (188.0) but the highest number of effective tillers hill-1 (15.2) and longest panicle length (25.9 cm) were obtained from the genotype Local-L which contributed the highest grain yield (6.5 t ha-1). Between two locations, the highest significant response regarding the number of effective tillers hill-1 (11.95) and filled grains panicle-1 (153.1) and had the longer (143.2 days) maturity period. Interactions between genotypes and locations, BBRM-7 at farmers’ plot required the highest days for maturity (149.0 days). However, ALR-3 at farmers’ field produced the highest number of filled grains panicle-1 (190.6) but the Local-L had highly significant for getting the higher number of effective tillers hill-1 (17.0) and longest panicle (26.5 cm) length. As a result, aromatic rice cultivation in farmer’s field is comparatively favorable to sub-station farm, Rangpur.
Key words: Morphological, variation, aromatic landraces.
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