Table 4.

Average values of lowest and best parent heterosis (LPH and BPH) with standard error and P-values (P) obtained from unilateral paired t-tests

Cross	No. blocks	LPH	SE	P	BPH	SE	P
C1 × C2	5	15.83	49.81	0.26	−22.73	44.11	0.16
C1 × J	5	44.10	41.91	0.09	−0.73	52.19	0.49
C1 × P	5	4.54	28.87	0.37	−15.21	33.61	0.19
C1 × R	5	44.92	46.27	0.05	21.76	56.45	0.22
C1 × T	5	28.89	18.43	0.01*	−2.18	22.49	0.42
C2 × C1	5	35.44	47.38	0.09	−3.13	46.21	0.45
C2 × J	5	54.53	12.46	0.00*	−0.29	53.26	0.50
C2 × P	5	6.61	20.13	0.25	−26.65	38.76	0.10
C2 × R	5	36.08	43.02	0.07	−8.08	75.15	0.41
C2 × T	5	26.33	4.17	0.00*	−19.72	31.93	0.12
C2 × V	2	11.63	42.96	0.39	−52.27	1.32	0.01*
J × C1	5	42.44	20.55	0.01*	−2.39	22.57	0.41
J × C2	3	45.11	30.70	0.20	−29.79	65.45	0.26
J × P	3	43.56	24.52	0.05	24.56	28.66	0.14
J × R	5	26.85	41.92	0.08	2.69	54.73	0.37
J × T	5	14.00	24.08	0.27	−5.04	38.24	0.39
J × V	3	9.00	19.35	0.25	−23.08	29.65	0.16
P × C2	2	−24.33	51.38	0.31	−52.60	80.04	0.26
P × J	4	43.38	46.48	0.08	6.53	49.76	0.41
P × V	5	−0.82	22.61	0.47	−22.46	11.60	0.01*
R × C1	5	46.58	31.76	0.02*	23.41	45.77	0.16
R × C2	5	46.58	17.25	0.00*	2.42	43.21	0.46
R × J	5	47.21	19.07	0.01*	23.05	20.24	0.03**
R × P	5	−1.50	32.83	0.46	−23.80	29.19	0.07
R × T	5	45.12	20.90	0.01*	32.53	19.74	0.01*
T × C1	5	35.55	21.99	0.01*	4.48	30.49	0.38
T × C2	5	1.51	15.88	0.04*	−44.54	42.97	0.04*
T × J	5	54.58	16.63	0.00**	35.54	9.96	0.00**
T × P	5	−11.76	8.59	0.02**	−40.66	21.51	0.01*
T × R	5	23.65	22.74	0.04*	11.05	22.85	0.17
V × J	1	−3.00	–	–	−31.70	–	–

Asterisks distinguish cases where the statistical test is significant but without particular relevance with regard to hybrid's fitness (*) from those where either hybrid depression or hybrid vigor are observed (**).