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

Table 3

Mean squares from diallel analysis for various characters in cucumber (Griffing’s model I Method 2).

Source of variation	Degree of freedom	Mean of square
		Early yield	Marketable yield	Nonmarketable yield	Total yield	SWI	Marketable yield percentage
GCA	5	0.13**	1.15**	0.026**	1.580**	1.37**	826.31**
SCA	15	0.036**	1.37**	0.007**	1.334**	1.57**	340.24**
M′e	40	0.004	0.02	0.001	0.021	0.03	35.95
MSGCA/MSSCA	—	3.61*	0.84 ns	3.71*	1.18 ns	0.87 ns	2.43 ns
Baker ratio	—	0.878	0.63	0.881	0.703	0.64	0.33
ℎ^2𝑛	—	0.35	b	0.31	0.04	b	0.23

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