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 2

Mean values of cultivars, sites, and growing seasons 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). Means for each character followed by the same letter are not significantly different at .

	L^∗	a^∗	b^∗	C^∗	H^∗	S^∗
Cultivar
“Ferraduel”	46.97 c	19.29 a	31.25 a	36.73 a	55.32 b	28.11 a
“Ferragnès”	47.08 b	18.69 b	30.38 b	35.68 b	55.15 c	27.04 b
“Fournat de Brézenaud”	44.16 d	17.19 d	28.35 d	33.16 e	54.46 d	24.93 d
“Marcona”	48.41 a	17.04 e	28.99 c	33.63 c	53.15 e	23.38 e
“Tuono”	42.13 e	17.61 c	28.14 e	33.19 d	55.92 a	26.23 c
Site
Aknoul	47.19 b	17.61 e	30.12 b	34.89 b	52.88 e	25.83 bc
Bni Hadifa	47.39 a	17.89 c	30.27 a	35.16 a	53.36 d	25.51 cd
Tahar Souk	44.91 c	18.03 b	29.67 c	34.73 c	54.61 c	27.01 a
Rislane	44.78 d	17.81 d	28.14 e	33.31 e	56.37 b	24.83 d
Sidi Bouhria	44.48 e	18.46 a	28.91 d	34.31 d	56.79 a	26.53 ab
Growing season
2016	46.64 a	18.53 a	29.87 a	35.16 a	55.53 a	26.57 a
2017	45.74 b	17.84 b	29.50 b	34.48 b	54.38 b	26.08 a
2018	44.87 c	17.51 c	28.89 c	33.81 c	54.49 b	25.16 c