Pyramiding of drought yield QTLs into a high quality Malaysian rice cultivar MRQ74 improves yield under reproductive stage drought

Rice

Table 2 QTL class mean comparisons for grain yield in kg ha⁻¹ under drought stress (stress) and irrigated control (non-stress) in MRQ74 as the recipient parent in trials conducted during the 2013 and 2014 dry seasons

QTL class label	QTLs combinations	2013 - medium duration		2013 - long duration		2014 - long duration
		NS	RS	NS	RS	NS	RS
A	qDTY _2.2 + qDTY _3.1 + qDTY _12.1	3272.27 a	951.84 d	4544.57 ac	817.15 cb	5244.69 a	191.04 a
B	qDTY _12.1 + qDTY _3.1	3986.11 bc	984.3 d	4825.65 cb	1210.89 d	5790.29 b	369.56 ab
C	qDTY _12.1 + qDTY _2.2	4388.46 c	559.49 b	4799.92 cb	1129.34 d	7622.61 c	264.89 ab
D	qDTY _2.2 + qDTY _3.1	3926.70 bc	639.04 b	4090.89 a	652.74 b	5550.93 ab	563.68 b
E	qDTY _12.1	3980.007 bc	591.76 b	5159.42 c	875.56 c	5809.43 b	493.41 cb
F	qDTY _3.1	3690.20 b	829.87 c	4176.96 a	660.57 b	5409.14 a	340.68 ca
G	qDTY _2.2	3713.37 ba	718.59 bc	4348.73 ab	1163.43 d	5388.17 ab	960.36 d
MRQ74	NO QTL	4332.34 bca	56.73 a	4034.43 ac	90.41 a	5105.24 ab	115.07 ab
F- value		3.20	10.01	4.82	10.87	17.09	4.42
p-value		0.0002	<0.0001	0.0001	<0.0001	<0.0001	0.0003