Plant Materials The experiment was conducted at the farm of Bangladesh Rice Research Institute (BRRI), Gazipur in Boro, 2015-16. A total of 45 landraces were used in the experiment. Forty five rice landraces collected from the genebank of Bangladesh Rice Research Institute (BRRI), Gazipur were grown under irrigated condition (Boro) in 2015-16 for studying morphological traits. Rice Cultivation Forty-day-old seedlings from each entry were transplanted using single seedling per hill in 2.4 m2plot following 25 cm and 20 cm space between rows and plants, respectively. Fertilizers were applied @ 80-60-40-10 kg NPKS per hectare. All the fertilizers except N were applied at final land preparation. Nitrogen was applied in three equal splits, at 15 days after transplanting (DAT), at 35 DAT and just before flowering. Intercultural operations and pest control measures were done as and when necessary. Methods of Data Collection Twenty eight qualitative traits were scored based on “Germplasm Descriptors and Evaluation Form” developed by BRRI (2008). The traits were: Blade pubescence (late vegetative stage), Blade colour (late vegetative stage), Leaf sheath: anthocyanin colour (early to late vegetative stage), Basal leaf sheath colour (early to late vegetative stage), Leaf angle (prior to heading), Flag leaf angle (after heading), Ligule colour (late vegetative stage), Ligule shape (late vegetative stage), Collar colour (late vegetative stage), Auricle colour (late vegetative stage), Culm anthocyanin colouration of nodes (after flowering), Culm angle (after flowering), Internode colour (after flowering), Culm strength (after flowering to maturity), Panicle type (near maturity), Secondary branching (near maturity), Panicle exertion (near maturity), Shattering, Spikelet : awns in the spikelet (flowering to maturity), Spikelet : length of the longest awn (flowering to maturity), Distribution of awing (flowering to maturity), Awn colour (at maturity), Apiculus colour (at maturity), Stigma colour (at maturity), Lemma and palea colour (at maturity), Lemma and palea pubescence (flowering to maturity), Seed coat (bran) colour (at maturity), Leaf senescence (at maturity), Decorticated grain scent (aroma) at maturity. A few quantitative traits were studied using Plant height (cm), Days to flowering, Days to maturity, Panicle length (cm), Effective tiller, Length-breadth ratio and 1000 grain weight (g). The approved crop descriptor as given in the Volume 1 of Plant varieties of Bangladesh (Rahman et al., 2007; 2008) were used for documentation of these varieties. Ten plants from each landrace were randomly selected for recording data. Recommended Breeder’s descriptors codes were used for the assessment of anthocyanin colour characteristics. Harvesting The 45 rice landraces were harvested at different times due to their requirement of different days to reach maturity. Data analysis Mean, Standard deviation and Co-efficient of variation were analyzed using a total of eight parameters: Plant height (cm), Days to 50% flowering, Days to maturity, Panicle length (cm), Effective tiller, Length-breadth ratio,1000 grain weight (g) and yield (g/hill). Statistical analyses were carried out using Microsoft Excel 2010.