Paper Contents
Abstract
Fifteen duplicate and similar named Jirasail group of rice germplasms were studied to evaluate the variations for 14 yield and yield contributing characters at Bangladesh Rice Research Institute during Boro 2019-20 season. The height leaf length (50 cm) was observed in Jira Bhog (Bolder) (acc. no. 4828) with a range of 25.6-50. The height culm diameter (4.7 mm) was recorded from JS15 (NC). The highest panicle length (32.8 cm) was observed in acc. 1984 (Jira Buti) with a range of 20.8-32.8. Jira Dhan (acc. 5313) had the longest plant height (124.8 cm) with a range of 84.8-124.8. Jira Dhan (acc. 5313) had the highest number of filled grains per panicle (251) with range 76-251. The longest dehulled grain (6.8 mm) and the highest LB ration (3.82) were found in acc. 6718 (Jirasail). The highest 1000-grain weight (21.8 g) was observed in Jirasail (Indian)(acc. 8056) and the lowest (8.9) in Jira Bhog (Finer)(acc. 4831). The highest grain yield (35.4 ghill) was observed in Jirasail (Indian)(acc. 8056). Grain yield had highly significant positive correlation with leaf width, grain length, decorticated grain(s)length breadth ratio and 1000-grain weight, but highly significant negative correlation with panicle length and un-filled grain per panicle. Considerable genetic variations were observed among the Jirasails though have the similar or duplicate name. The best genotypes are acc. no. 1984, 4828, 4831, 5313, 6694, 6718, 8056 and NC (JS15). Finally, the potential genotypes with valuable gene(s) need to be conserved and utilized for Jirasail rice improvement.
Copyright
Copyright © 2024 Mir Sharf Uddin Ahmed. This is an open access article distributed under the Creative Commons Attribution License.
