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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