Research Article

Genetic Variability and Selection Criteria in Rice Mutant Lines as Revealed by Quantitative Traits

Table 2

List of quantitative traits.

Growth trait/yield traitDenotationMethod of evaluation

Plant height PH (cm)The average height from the base to the tip of last leaf (flag leaf)
Flag leaf length to width ratio FLWR (cm)Divide the flag leaf length by width
Number of tillers per hill NT (number)Count the number of tillers per hill
Days to flowering DF (days)Count the number of days from seeding to flowering
Days to maturityDM (days)Count the number of days from seeding to maturity
Number of panicles per hill NP/H (number)Count the number of panicles per hill
Panicle length PL (cm)Measure the length from the node below the lowest branch on the panicle to the top of first superior spikelet
Total number of grain per panicle TNG/P (number)Count the number of spikelets per panicle
Hundred grain weight100 GW (g)Weigh any 100 filled grains
Total grain weight per hillTGW/H (g)Weigh total grains produced per hill
Seed lengthSL (cm)Measure the length of the seeds using microscopic picture and Leica application suit software
Seed length to width ratio SLWR (cm)Divide the seed length by width
Yield in t/haY/ha (ton)Number of tillers per square meter × average total grains per tillers divided by 100