Table 2. Mid-parent heterosis of F₁ and reconstructed F₂ population in three environments for the nine yield-correlated traits with significant heterosis.

Traits§	Environments	Mid-parent heterosis
		F1		reconstructed F2
		value %		Mean %		range %
SY	N6	1784	75.4	666	29.4	-854—2318	-32.2—126.2
	S5	866	69.7	403	30.5	-763—1143	-31.5—101.5
	S6	1026	99	309	28.5	-378—1104	-31.3—133.4
SP	N6	5057	67.3	2290	33.4	-2088—5803	-19.1—111.7
	S5	2714	70.4	1163	26.5	-2291—3964	-34.2—89.5
	S6	2577	84.8	859	26.6	-1296—3606	-27.9—99.1
BY	N6	2151	47.5	976	21.4	-1272—3354	-19.7—81.2
	S6	1329	40.5	688	19.6	-1254—2571	-37.3—87
PN	N6	179	53.7	61	20.2	-134—340	-30.8—82.5
	S5	79	29.6	42	16.9	-122—228	-34.2—79.5
	S6	106	33.1	39	18.2	-109—308	-27.8—80.6
HI	N6	5	14.6	2.3	9.1	-3.5—9.5	-9.1—39.5
	S6	6	24.8	3.7	14.1	-4.1—10.6	-7.3—52.2
PH	N6	20.6	17.7	13.6	11.2	-6.6—41.3	-5.7—36.1
	S5	18.4	13.6	8.5	6.1	-17.7—28.7	-13.4—20.1
	S6	12.3	9.4	8.6	6.4	-14.3—31.9	-9.3—26
PY	N6	1.1	15.2	0.56	8.8	-3.03—3.61	-18.5—49.4
	S5	1.6	31.5	0.48	10.1	-1.73—2.87	-16.9—43.7
	S6	1	21.9	0.42	9.4	-1.93—3.19	-27.4—57.1
SN	N6	5	21.8	2.2	11.8	-8.6—11.6	-35.8—72.0
	S5	3.7	23	1.5	10	-5.3—7	-29.9—47.1
	S6	2.7	20.6	1.2	8.6	-5.0—8.2	-33.9—62.5
BN	N6	1.34	16	0.9	10.5	-2.44—4.33	-27.3—64.8
	S5	1.52	21.6	0.53	7.7	-1.82—2.9	-27.4—45.4
	S6	0.62	11.3	0.31	5.6	-2.03—2.4	-35.2—43.6

§For the abbreviation of the traits (ordered according to their correlation coefficients with SY), see MATERIALS AND METHODS.