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Table 4 QTL class mean comparisons for grain yield in kg ha−1 under reproductive stage drought stress (stress) and irrigated control (non-stress) in MR219 as the recipient parent in trials conducted during dry season 2013 and 2014

From: Marker assisted pyramiding of drought yield QTLs into a popular Malaysian rice cultivar, MR219

QTL class label

QTL

2013 - short duration

2013 - medium duration

2014 - medium duration

NS

RS

NS

RS

NS

RS

A

qDTY 2.2   + qDTY 3.1   + qDTY 12.1

4600 ba

475.55 c

6799 ab

642 b

7706 d

442 b

B

qDTY 12.1   + qDTY 3.1

6577 d

179.57 ab

6652 ac

1072 d

7532 cd

794 e

C

qDTY 12.1   + qDTY 2.2

4518 ba

376.55 c

7633 b

761 bc

7364 ac

698 d

D

qDTY 2.2 + qDTY 3.1

6867 d

444.98 c

7158 bc

1112 d

6843 b

571 c

E

qDTY 12.1

5935 c

373.46 cb

6229 a

654 b

6967 b

301 a

F

qDTY 3.1

6366 dc

582.25 c

6488 a

890 c

7374 ac

568 c

G

qDTY 2.2

4148 a

514.48 c

6760 ab

1104 d

7079 ba

669 dc

X (MR 219)

NO QTL

6713 bdc

0 a

5917 ab

13 a

8321 bcd

0 ab

F- value

 

7.48

3.27

2

11.76

9.45

19.39

p-value

 

<0.0001

0.0043

0.07

<0.0001

<0.0001

<0.0001

  1. Means followed by the same letter are not significantly different