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Table 4 Trait evaluation and agronomic characteristics of four selected pseudo-BC 3 F 3 BILs (PinK + 4) and parental lines with respect to submergence, bacterial blight, brown planthopper and blast resistance

From: Pseudo-backcrossing design for rapidly pyramiding multiple traits into a preferential rice variety

No

Name

Family

Trait evaluation 1/

Agronomic characteristics 2/

Sub

BLB (TXO156)

Bph(UBN)

Blast (Mixed#2)

DM

NTP

PH (cm)

NGP

PSF (%)

TGW (g)

GY (kg/ha)

1

1E_06

1_H06

50.7c3/

1.5a

1.7a

0.7a

140.0e

9.3ab

70.1bc

276.7e

82.5ef

42.9f

7777ef

2

20A09

4_E02

42.0bc

1.4a

1.7a

0.7a

140.0e

9.3ab

79.0c

224.3d

69.6c

41.4e

7381ef

3

66B09

3_E03

31.3b

0.8a

1.7a

0.6a

128.0c

9.2ab

77.7c

236.1d

76.1d

42.5f

6977 de

4

78A03

13_H06

52.0c

0.8a

3.7abc

0.0a

143.0h

9.2ab

78.3c

241.0d

77.3d

42.4f

6966de

5

117A08

2_A10

56.0c

1.5a

3.0ab

0.0a

126.0c

8.6a

77.3c

168.7c

81.1e

41.5e

6175cd

6

PinK3

recurrent

0.0a

12.8b

6.3cd

5.7d

141.3f

8.3a

77.0c

301.0f

62.0b

40.3d

8306f

7

Xa497

donor

3.3a

0.5a

6.3cd

3.7c

134.0d

9.5ab

59.3a

166.0c

84.9f

40.5d

5417c

8

CholSub1

donor

50.7c

nd

5.7bc

2.3b

122.0b

10.7bc

62.7ab

120.3b

75.0d

39.4c

4041b

9

RBPiQ

donor

2.0a

18.4b

9.0d

0.0a

142.0g

10.4cd

74.3c

185.7c

94.1g

34.8a

5581c

10

Bph162

donor

0.0a

15.6b

1.0a

3.3c

99.0a

12.8d

69.7bc

81.0a

58.5a

38.5b

2227a

  1. Remarks:
  2. 1/Trait evaluation.
  3. Sub = Average % plant survival (%PS) after 15 days of flash flooding.
  4. BLB = average lesion length in centimeters of the damage caused by the BB isolate TXO156.
  5. Bph = Severity scores with UBN biotype at 9 DAI when TN1, the susceptible control died.
  6. Blast = Average blast injury score when attacked by a Mixed#2 blast isolate from Thailand.
  7. 2/Agronomic characteristics.
  8. DM (days to maturity), NTP (number of tillers per plant), PH (plant height from the soil surface to the neck of the panicle), NGP (number of grains per panicle), PSF (percent spikelet fertility), TGW (1,000 grain weight) and GY (grain yield).
  9. 3/Average values marked with different letters in the same column are significantly different at the 95% confidence level using LSD.