Griffing's Methods Comparison for General and Specific Combining Ability in Cucumber

Table 4

Mean squares from diallel analysis for various characters in cucumber (Griffing’s model I Method 4).

Source of variation	Degree of freedom	Mean of square
		Early yield	Marketable yield	Nonmarketable yield	Total yield	SWI	Marketable yield percentage
GCA	5	0.01 ns	0.96**	0.016**	1.19**	0.16**	216.54**
SCA	9	0.01 ns	1.40**	0.002 ns	1.16**	1.57**	393.06**
M′e	28	0.003	0.03	0.001	0.02	0.04	29.08
MSGCA/MSSCA	—	1.00 ns	0.69 ns	8.00**	1.03 ns	0.10 ns	0.55 ns
Baker ratio	—	0.67	0.58	0.94	0.67	0.17	0.52
ℎ^2𝑛	—	b	b	0.64	b	b	b

ns, *, ** non significant and significant at 𝑃≤0.05 and 𝑃≤0.01 respectively.
b: not estimated because MS_GCA<MS_SCA.