AGRO-MORPHOLOGICAL CHARACTERIZATION OF GLUTNOUS, NON-GLUTINOUS, AROMATIC AND NON-AROMATIC RICE CULTIVARS OF SYLHET

Abstract

Agro-morphological and physico-chemical characterization is fundamental in order to provide information for plant breeding programs. The aim of the present study was to characterize twenty local rice cultivars including glutinous and aromatic rice, following agro-morphological Rice descriptor, IBPGR-IRRI., 1980.The experiment was conducted under field condition during the period from June to December, 2014, at the experimental field of the Department of Agronomy and Haor Agriculture, Sylhet Agricultural University, Sylhet. Grain physicochemical analysis was done at the laboratory of Grain Quality and Nutrition Division, Bangladesh Rice Research Institute (BRRI). Seeds were collected across the Sylhet and the study was conducted following Randomized Complete Block Design (RCBD) with three replications. Polymorphism was observed among 30 of 34 qualitative characters evaluated, whereas significant differences were observed for all the analyzed quantitative traits. In terms of qualitative and quantitative traits Khakibiruin, Kakhibiruin, Gandi, Chorabiruin and Biruin possessed a good number of traits like, leaf length, flag leaf length, tillering habit, culm angle, height, lodging resistance, panicle length number of grain per panicle with higher yield than rest of the cultivars. The highest number of tillers was recorded by the rice cultivar Muktasail which was around 20 tillers per three plant in average and lowest tiller number showed by Madhumadab which was 10 tiller. Highest panicle length showed by cultivar Akhnisail (24.92 cm) and lowest by Chinirsail (19.14 cm). Akhnisail showed highest (138.4) grain per panicle followed by Muktasail and Khakibiruin showed lowest grain per panicle (75). The highest filled grain per panicle was observed in Muktasail (109.9) lowest grain per panicle was observed in Bantos (55.4). Highest grain yield was observed in Kakhibiruin (1.68 t/ha) followed by Khakibiruin and Gandi. Lowest yield was observed in Madhumadab (0.54 t/ha) and Muktasail (0.54 t/ha). All the sources were not significantly different in terms of correlation of yield and yield attributes. Leaf length and breadth, culm length and diameter, flag leaf length, effective tiller, panicle length and 1000-seed weight showed a positive relationship with yield. In physicochemical properties analysis Kakhibiruin, Khakibiruin, Chorabiruin, Biruin and Botabiruin found glutinous type endosperm and Kalijira, Chinigura and Madhumadab found scented cultivar.