Filters: Tags: Leaf area (X)24 results (7ms)
Selection on Leaf Ecophysiological Traits in a Desert Hyrbrid Helianthus Species and Early-Generation Hybrids
Leaf ecophysiological traits related to carbon gain and resource use are expected to be under strong selection in desert annuals. We used comparative and phenotypic selection approaches to investigate the importance of leaf ecophysiological traits for Helianthus anomalus, a diploid annual sunflower species of hybrid origin that is endemic to active desert dunes. Comparisons were made within and among five genotypic classes: H. anomalus, its ancestral parent species (H. annuus and H. petiolaris), and two backcrossed populations of the parental species (designated BC2ann and BC2pet) representing putative ancestors of H. anomalus. Seedlings were transplanted into H. anomalus habitat at Little Sahara Dunes, Utah, and...
Specific leaf area and leaf nitrogen concentration in annual and perennial grass species growing in Mediterranean old-fields
Survival, growth, and allometry of planted Larix occidentalis seedlings in relation to light availability
Aboveground Net Primary Production and Leaf-Area Index in Early Postfire Vegetation in Yellowstone National Park
Foliar carbon isotope discrimination in Larix species and sympatric evergreen conifers: A global comparison
Leaf-level gas exchange and leaf-area index measurements collected at four study sites on the island of Maui, Hawai‘i, September 2017 – August 2018
The University of Hawaiʻi at Mānoa and the U.S. Geological Survey, in cooperation with the County of Maui Department of Water Supply and the State of Hawaiʻi Commission on Water Resource Management, initiated a field data-collection program to provide information for evaluating how rates of water vapor and carbon dioxide exchange are dependent on plant species type within forested areas on the island of Maui. The field data collection is part of a study to quantify the impacts of high-priority non-native and dominant native plant species on freshwater availability throughout the State of Hawaiʻi (https://archive.usgs.gov/archive/sites/hi.water.usgs.gov/studies/maui_eco/index.html). The overall objective of the study...
Regional influences of soil available water-holding capacity and climate, and leaf area index on simulated loblolly pine productivity
Effects of leaf aggregation in a broad-leaf canopy on estimates of leaf area index by the gap-fraction method
Simulated effects of low atmospheric CO sub(2) on structure and composition of North American vegetation at the Last Glacial Maximum
Relationships of leaf dark respiration to leaf nitrogen, specific leaf area and leaf life-span: a test across biomes and functional groups
Contemporary variations of terrestrial net primary production: The use of satellite data in the light of an extremal principle