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Table 2 Grain quality traits of CSA-Pi9 and CSA plants grown in 2019 under different field conditions

From: Development of a Temperate Climate-Adapted indica Multi-stress Tolerant Rice Variety by Pyramiding Quantitative Trait Loci

Field location1 Variety Generation Grain length (cm)2 Grain width (cm)2 Length/width ratio2 Brown rice recovery (%)2 Chalkiness (%)2 Amylose content (%)2 Alkali spreading value3 Protein content (%)2
Field A CSA 9.53 ± 0.06 2.46 ± 0.02 3.87 ± 0.03 79.53 ± 0.18 26.29 ± 2.58 29.44 ± 0.08 2.5 6.15 ± 0.28
  CSA-Pi9 BC2F7 8.64 ± 0.13*** 2.45 ± 0.04 3.53 ± 0.04*** 76.73 ± 0.24** 17.45 ± 2.44* 27.85 ± 0.15** 2.3 6.67 ± 0.27
Field B CSA 9.81 ± 0.06 2.42 ± 0.02 4.06 ± 0.05 82.67 ± 0.57 32.59 ± 2.76 29.08 ± 0.67 4 8.87 ± 0.28
  CSA-Pi9 BC2F7 8.52 ± 0.07*** 2.35 ± 0.03 3.63 ± 0.04*** 78.53 ± 0.13* 20.00 ± 3.79* 27.86 ± 0.07 2*** 7.82 ± 0.33
Field C CSA n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a.
  CSA-Pi9 BC2F7 8.27 ± 0.08* 2.34 ± 0.03 3.54 ± 0.04 77.6 ± 0.23* 26.03 ± 3.34 23.15 ± 0.17*** 4*** 13.06 ± 0.17***
  1. 1Field A: normal irrigation condition; Field B: normal irrigation condition in reclaimed region; Field C: high salinity condition in reclaimed region. Field locations are described in the Materials and Methods
  2. 2Data represent mean ± SE (n = 5). Asterisks indicate statistically significant differences between CSA and CSA-Pi9 in each field (*P < 0.05, **P < 0.01, ***P < 0.001; Student's t-test). n.a.: not applicable (all plants dead)
  3. 3Data represent the mean of five measurements. n.a.: not applicable (all plants died)