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Table 1 Phenotypic variation of 17 traits among parents and the RIL

From: Improving the Glossiness of Cooked Rice, an Important Component of Visual Rice Grain Quality

TraitsYearsParentsRange of RILs
HwayeongWandoaengmi6TaMean ± SDMin.Max.Cb
I. Grain quality (Physicochemical characteristics)
 Protein (%) (Pro)20176.676.05**7.0 ± 0.75.19.30.64***
20186.505.87**5.9 ± 0.74.38.4 
 Amylose (%) (Amy)201717.519.2*16.9 ± 1.79.520.80.39***
201817.419.0**18.7 ± 1.116.021.8 
 Glossiness (TV)201768.488.5**77.1 ± 6.256.190.40.71***
201873.089.3**79.5 ± 5.765.293.5 
 ASV20176.07.0**6.1 ± 0.83.67.00.58***
20185.06.0**5.5 ± 1.12.07.0 
II. Eating quality (Palatability test)
 Appearance (AP)2017−0.020.25ns−0.04 ± 0.26−1.000.850.26***
20180.070.57*0.02 ± 0.41−1.110.88 
 Aroma (AR)2017−0.080.19*−0.01 ± 0.15−1.000.40.09*
20180.00−0.07*−0.01 ± 0.09−0.550.33 
 Taste (EQ)20170.020.52*0.02 ± 0.33− 0.851.00032**
2018−0.140.21*0.01 ± 0.27−1.000.75 
 Stickiness (ST)2017−0.300.22*−0.07 ± 0.32−1.000.710.13*
20180.000.07*−0.08 ± 0.38−1.140.75 
 Hardness (HD)2017−0.160.52*−0.05 ± 0.41−1.401.000.40***
20180.070.35**0.03 ± 0.31−1.001.11 
 Overall eating quality (OE)2017−0.160.55*−0.05 ± 0.41−1.201.000.41***
20180.070.28*−0.01 ± 0.40−1.001.11 
III. Cooking quality (Starch viscosity)
 Pasting (PT) temperature201773.070.4*72.1 ± 1.468.776.00.89***
201872.771.9ns73.5 ± 2.166.478.3 
 Peak viscosity (PV)2017247.2247.9ns221.5 ± 24.6137.4286.10.59***
2018202.9235.0ns219.3 ± 36.3137.4280.8 
 Hot paste viscosity (HV)2017133.9155.3*122.9 ± 22.842.8191.50.63***
2018118.8151.9*129.6 ± 27.64.41188.2 
 Cool paste viscosity (CV)2017232.2261.0*224.7 ± 29.089.5285.10.70***
2018198.8242.6**212.3 ± 36.111.7269.6 
 Breakdown viscosity (BD)2017113.392.6*98.6 ± 15.551.8143.30.44***
201884.183.1ns89.8 ± 18.615.5140.9 
 Setback viscosity (SB)2017−15.013.1*3.1 ± 19.7−78.954.40.57***
2018−4.17.6ns−7.01 ± 21.4−70.047.2 
 Days to heading (day) (DH)20179895*98 ± 7.986.0121.00.94***
201810198*98 ± 8.284.0124.0 
 Head rice (%) (HR)201795.292.9*91.9 ± 5.963.199.20.25*
201897.096.7ns79.3 ± 15.531.998.1 
  1. aDifference between the mean value of each parent by t-test. ns, *, ** indicates not significant, significant at P < 0.05, and significant at P < 0.001, respectively
  2. bYear-to-year correlation. Significance levels: *P < 0.05, **P < 0.01, and ***P < 0.001