Contribution of leaf morphometrics in the study of genetic entries in Salix L.

Contribution of leaf morphometrics in the study of genetic entries in Salix L.

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The use of leaf morphometrics in Salix was investigated at three genetic entry levels: species, family and clonal (progeny genotype).Data for seven leaf parameters, were collected from four full-sib Salix eriocephala and three S.exigua families.Principal componentanalysis, multivariate analysis of variance and discriminant analysis showed that most of the variation was resolved in lowmultidimensional space.Leaf GERANIUM and stipule shape parameters emerged as most important variables.

Separation at the family level waspartially achieved in a tri-dimensional ordination of the major axes in Incontinence/Single Use both principal and discriminant space.Interspecific distanceswere 21 times greater than intraspecific ones on the average, indicating very good separation of S.eriocephala from thetaxonomically troublesome S.exigua.A maternal effect at the family level was detected by all analyses, while discrimination at theclonal level was not possible.