Genotypic and Environmental Variations in Kernel Color Indices in the Main Almond (Prunus dulcis (Mill.) D.A. Webb) Cultivars Grown in North-Eastern Morocco

Table 1

Mean squares of the combined analyses of variance for brightness index (L^∗), redness index (a^∗), yellowness index (b^∗), chroma (C^∗), hue angle (H^∗), and metric saturation (S^∗) of five almond cultivars grown in different sites of north-eastern Morocco (Aknoul, Bni Hadifa, Tahar Souk, Rislane, and Sidi Bouhria) during three growing seasons (2016−2018).

Source of variation	Df	L^∗	a^∗	b^∗	C^∗	H^∗	S^∗
Growing season (GS)	2	59.404	20.191	18.096	34.685	30.24	38.5
Site (S)	4	90.267	4.643	35.811	23.772	137.76	32.7
Cultivar (C)	4	292.288	43.353	81.572	119.394	50.56	152.42
Replicate (S)	10	0.001	0.002	0.001	0.001	0.02	3.6
GS × S	8	0.307	0.065	0.124	0.097	0.79	3.9
GS × C	8	0.002	0.006	0.013	0.009	0.09	3.4
S × C	16	11.978	6.432	10.982	16.607	6.53	30.4
GS × S × C	32	0.002	0.009	0.014	0.007	0.12	3.6
Residual	140	0.001	0.002	0.001	0.001	0.02	3.5
Total	224

Significant at 0.05 probability level; significant at 0.01 probability level; significant at 0.001 probability level.