title: Univariate and multivariate analysis on phenotypic divergence in Phleum.
abstract: An analysis of phenotypic and genetic variability was performed on Phleum ambiguum populations obtained by vegetative propagation and grown in different environments. The investigation on a single character and the canonical analysis on several plant traits indicate that, while genetic variability (h(2)) is essentially constant, phenotypic variance and covariance are affected by different environments and successive clonations. The observed changes seem not to be reversible when plants, transferred to a different environment, are returned to the original one. Within-clones variability seems to be affected by environmental conditions without being directly related to them. The results reported seem to be in good agreement with the phenotypic divergence hypothesis.
authors: Istituto di Genetica, Universitá degli Studi, Bologna, Italy.
authors: S
authors: S
authors: Cavicchi
authors: D L
authors: DL
authors: Palenzona
authors: C
authors: C
authors: Pancaldi
authors: G
authors: G
authors: Giorgi