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- Title
Diversity in physiological and morphological characteristics of four cottonwood (Populus deltoides var. wislizenii) populations in New Mexico: evidence for a genetic component of variation .
- Authors
Rowland, Diane L.
- Abstract
Reports on a common garden that was established using genotypes of Populus deltoides var. wislizenii (S. Wats.) Eckenwalder from four New Mexico populations (Abiquiu, Corrales, Bernardo, and San Antonio) to examine physiological and morphological differentiation within and among populations. Populations that were located within the same watershed along the Rio Grande and one of its tributaries, the Rio Chama; Measurement of physiological and morphological variation to determine the extent of inter- and intra-population variation in these traits; Determination to see if the same traits varied among male, female, and nonreproductive trees; Differences within and among populations that occurred for photosynthesis, transpiration, and stomatal conductance; Leaf morphological traits that also differed within and among populations, including leaf size, chlorophyll content, and specific leaf mass; Stomatal conductance that differed significantly between female and nonreproductive trees in both years; Study that demonstrated the existence of genetic variation in ecophysiological and morphological traits within and among cottonwood populations and among cottonwoods of differing reproductive status within a single watershed.
- Subjects
RIO Grande (Colo.-Mexico &; Tex.); RIO Chama (Colo. &; N.M.); COTTONWOOD; TREES
- Publication
Canadian Journal of Forest Research, 2001, Vol 31, Issue 5, p845
- ISSN
0045-5067
- Publication type
Article
- DOI
10.1139/x01-016