Structure of Needle Highlights Ecological Adaptability and Microevolution of Natural Populations of Cedrus atlantica in Morocco

Table 5

Spearman nonparametric coefficient of correlation between single morphological traits and geographic parameters.

Traits	Altitude	Longitude	Latitude	T
NL	−0.561	0.181	0.514	−0.143	0.528
NW	−0.078	−0.577	−0.090	−0.401	−0.275
CT	−0.180	−0.543	0.083	−0.363	−0.250
NF	0.251	0.009	−0.105	0.268	−0.247
NLS	−0.495	−0.279	0.446	−0.295	0.120
NN/R	−0.002	−0.160	−0.076	−0.151	−0.068

T, temperature; P, precipitation;; NL, needle length; NW, needle width; CT, cuticle thickness; NF, number of facets; NLS, number of stomatal lines; NN/R, number of needles per brachyblast. and .