Research Article

Variability Assessment of Aromatic and Fine Rice Germplasm in Bangladesh Based on Quantitative Traits

Table 2

List of quantitative traits of 113 aromatic and fine rice genotypes.

TraitsMethod of evaluation

Culm diameter (CD, mm)Outer diameter internodes of the 10 culms were measured and averaged
Flag leaf area (FLA, cm2)Flag leaf area (cm2) = flag leaf length (cm) × maximum width (cm) × 0.75
Plant height (PH, cm)The average of height from the base to the tip of last leaf (flag leaf)
Days to flowering (DF, days)The number of days from seeding to flowering day
Days to maturity (DM, days)The number of days from seeding to maturing day
Effective tiller number (ET No.) Counting of effective tiller per hill
Panicle length (PL, cm)Distance between apex of the panicle (excluding awn) and top most node (neck node) of the culm
Primary braches per panicle (PBP, no.)Primary branches were counted from 5 randomly selected panicles and averaged
Primary branch length (PBL, cm)Lengths of the primary branches present in a panicle were measured (cm) from five panicles and averaged
Secondary branches per panicle (SBP, no.)Secondary branches were counted from 5 randomly selected panicles and averaged
Secondary branch length (SBL, cm)Length (cm) of the 30 random secondary branches from five randomly selected panicles and averaged
Filled grains per panicle (FGP, no.)Number of filled grains per panicle was counted from 10 randomly selected panicles and averaged
Unfilled grains per panicle (UFGP, no.)Number of unfilled grains per panicle was recorded from 10 randomly selected panicles and averaged
Grain length (GL, mm)Length (mm) of a grain was measured by a digital slide caliper from 10 randomly selected fertile grains excluding awn and averaged
Grain breadth (GB, mm)Breadth of a grain (mm) was measured form 10 randomly selected fertile grains by a digital slide caliper and averaged
Grain length breadth ratio (GLBR)Dividing grain length by grain breadth and averaged
1000-grain weight (TGW, g)200 grains were weighted then 1000-weight grains were calculated from these weights
Yield per plant (GYP, g)Ten randomly selected plants per replication and averaged
Harvest index (HI)Ratio of grain yield to biological yield