Table 5.

Estimates of additive, dominance and epistatic effects (and their standard errors) from the joint scale test for iron and zinc concentration on common beans measured by x-ray fluorescence (XRF) in parents (P₁ and P₂) and their F₁, F₂, BC₁P₁ (F₁ ˣ P₁) and BC₁P₂ (F₁ ˣ P₂) in two crosses grown in CRI research station.

Model	Cross 1		Cross 2
	Cal 96 ˣ RWR 2154		MCR-ISD-672 ˣ RWR 2154
	Iron	Zinc	Iron	Zinc
Scaling test
A	26.13 ± 8.62*	6.20 ± 3.32ns	13.58 ± 6.28ns	3.74 ± 2.06ns
B	6.26 ± 7.27ns	−3.58 ± 2.97ns	2.07 ± 9.89ns	−9.41 ± 3.06*
C	5.70 ± 11.61ns	−4.85 ± 4.02ns	25.48 ± 10.03*	5.26 ± 3.14ns
D	−13.35 ± 5.98*	−3.73 ± 1.97ns	4.92 ± 5.75ns	5.46 ± 1.71**
Joint scaling test
M	73.93 ± 1.65***	29.47 ± 0.50***	74.4 ± 1.59***	30.04 ± 0.55***
A	−11.24 ± 1.66***	−3.50 ± 0.50**	−12.48 ± 1.63***	−3.03 ± 0.57*
D	30.76 ± 3.21***	4.20 ± 1.05***	18.85 ± 2.05***	2.16 ± 0.99*
χ2	9.49*	7.09ns	10.35*	17.49***
Six parameter
M	46.42 ± 13.82**	22.23 ± 5.30**	82.48 ± 14.43***	40.7 ± 4.11***
A	−11.51 ± 1.83***	−3.83 ± 0.52***	−11.97 ± 1.75***	−3.76 ± 0.61***
D	114.31 ± 35.74**	21.9 ± 14.09	15.54 ± 38.23	−25.64 ± 11.14*
Aa	26.69 ± 13.69	7.47 ± 5.28	−9.83 ± 14.60	−10.93 ± 4.06*
Ad	19.88 ± 10.55	9.78 ± 4.22*	11.51 ± 11.60	13.16 ± 3.51**
Dd	−59.08 ± 22.94*	−10.08 ± 9.12	−5.81 ± 24.29	16.6 ± 7.28*

*, **, *** indicate terms are significant at P < 0.05, P < 0.01 and P < 0.001, respectively. m = mid-parent effect, a = additive effect, d = dominance effect, aa = additive x additive effect, ad = additive x dominance effect and dd = dominance x dominance effect, ns = non-significant.