Performance Evaluation of Ethiopian Bread Wheat (Triticum aestivum L.) Genotypes in Southern Ethiopia

Table 8

Estimates of variance components calculated from the combined data over location.

Traits	Mean	δ^2e	MSgxl		l	δ^2p	PCV (%)	GCV (%)	(%)	GA	GAM (%)
DH	73.4	12.0	15.8	10.2	1.3	23.5	6.6	4.4	0.43	4.3	5.9
DM	112.6	12.0	12.4	9.3	0.1	21.4	4.1	2.7	0.43	4.1	3.7
PH	89.3	11.7	38.5	24.5	8.9	45.1	7.5	5.5	0.54	7.5	8.4
TNT	5.6	0.3	1.2	0.0	0.3	0.6	14.3	3.6	0.06	0.1	1.8
ENT	5.4	0.3	1.1	0.0	0.3	0.6	14.8	3.7	0.06	0.1	1.9
SL	8.4	0.4	0.4	0.4	0.0	0.8	10.7	7.5	0.49	0.9	10.9
SPS	46.5	21.9	65.4	3.3	14.5	39.7	13.6	3.9	0.08	1.1	2.3
SR	2.3	0.9	0.6	1.7	−0.1	2.5	68.7	56.7	0.68	2.2	96.3
YR	1.9	0.8	1.1	0.5	0.1	1.4	62.3	37.2	0.36	0.9	45.8
ABM	8.5	2.0	5.6	0.8	1.2	4.0	23.5	10.5	0.20	0.8	9.7
GY	3.5	0.3	0.8	0.1	0.2	0.6	22.1	9.0	0.17	0.3	7.6
TSW	38.9	12.1	23.9	6.2	3.9	22.2	12.1	6.4	0.28	2.7	7.0
HI	44.7	22.9	87.2	12.4	21.4	56.7	16.8	7.9	0.22	3.4	7.6

 = genotypic variance, δ²p = phenotypic variance, δ²e = environmental variance, GVC = genotypic coefficient of variation, PCV = phenotypic coefficient of variation, DH = days to heading, DM = days to maturity, PH = plant height (cm), SL = spike length (cm), SPS = number of seeds spike⁻¹, TNT = number of tillers plant⁻¹, ENT = number of effective tillers plant⁻¹, SR = stem rust (scale), YR = yellow rust (scale), GY = grain yield (t/ha), ABM = biomass yield (t/ha), HI = harvest index, TSW = thousand seed weight (g).