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Table 3 Agronomic performance of Kongyu-131 and the improved line BC4F2–350 E03 in three environments

From: Improving the blast resistance of the elite rice variety Kongyu-131 by updating the pi21 locus

Trait 2017 Beijing 2017 Jiamusi 2018 Jiamusi
KY131 BC4F2–350E03 KY131 BC4F2–350E03 KY131 BC4F2–350E03
DTH 66.2 ± 0.7 68.9 ± 1.4** 103.3 ± 1.4 103.6 ± 1.5 102.8 ± 1.4 103.1 ± 1.5
PH (cm) 50.2 ± 0.8 49.7 ± 1.1 74.0 ± 3.5 74.7 ± 3.1 74.3 ± 4.7 74.2 ± 3.1
ETP 29.1 ± 1.5 28.4 ± 2.4 34.7 ± 3.5 33.5 ± 4.0 30.7 ± 4.5 32.2 ± 4.9
PL (cm) 13.3 ± 0.5 13.0 ± 0.8 16.1 ± 0.6 16.0 ± 0.7 16.0 ± 1.7 16.3 ± 1.2
NPB 6.7 ± 0.8 6.8 ± 0.6 10.2 ± 0.9 10.6 ± 1.2 11.7 ± 1.5 11.2 ± 1.0
GNP 67.4 ± 6.2 70.6 ± 6.8 116.3 ± 8.1 120.3 ± 14.1 102.9 ± 4.7 101.3 ± 6.3
SSP (%) 94.7 ± 2.7 93.1 ± 2.5 94.6 ± 3.2 93.6 ± 2.0 95.6 ± 1.2 95.8 ± 1.1
YP (g) 29.3 ± 2.7 28.7 ± 2.4 53.0 ± 2.3 54.2 ± 2.8 49.4 ± 2.3 52.4 ± 3.5
TGW (g) 23.9 ± 0.3 23.9 ± 0.8 27.2 ± 0.6 27.3 ± 1.0 27.0 ± 1.0 27.0 ± 1.0
GYP (kg) NA NA NA NA 3.97 ± 0.26 4.49 ± 0.34**
  1. Data presented as the means ± SD (standard deviations) were obtained from 10 plants with three replicates under natural conditions in Beijing and Jiamusi. The planting density was 30 cm × 20 cm, with one plant per hill. GYP data were obtained from plants in 10 plots, and the area per plot was 5.76 m2 (2.4 m × 2.4 m). **represents a significant difference at p ≤ 0.01 based on Student’s t-test. “NA” means data not available