WALKER, D. A. 1987. Height and growth rings of Salix lanata ssp. richardsonii along the coastal temperature gradient of northern Alaska. Can. J. Bot. 65: 988-993. Salix lanata ssp. richardsonii from open-tundra and streamside populations were studied at seven sites along a 100-km north-south transect following the Sagavanirktok River from the Alaskan arctic coast to the foothills of the Brooks ...

*Correspondence: Soo-Jeong Shin, Department of Wood and Paper Science, Laboratory of Plant Biomass Chemistry, Chungbuk National University, Cheongju, Chungbuk 361-763, South Korea e-mail: [email protected] To investigate the solid raw material characteristics of willow (Salix caprea) bark and woody core, this study analyzed overall chemical composition, monosaccharide composition, ash content...

Measurements of the statistical characteristics of umbra and sunflecks at different depths inside a willow coppice — Salix viminalis and Salix dasyclados — were carried out at Tartu Observatory, Tõravere, Estonia, in 1997. A new instrument, the sunfleck indicator, constructed by M. Sulev, was used. This instrument, moving perpendicularly to rows in the horizontal direction, counts the number an...

Higher water potentials in recovering burned salt-cedar (Tamarix ramosissima) relative to unburned plants and the opposite situation in willow (Salix gooddingii) provide evi­ dence that postfire water stress is reduced in the former but not the latter. Similarly, diurnal patterns ofstomatal con­ duc(ance in these taxa are consistent with the existence of more vigor in burned salt-cedar than wil...

examining the floral wreath on the mummy of the Princess Ugi-Khouni, of the twenty-first Egyptian dynasty, discovered, says Nature, at Deriel-Behan, the folded leaves of a willow (Salix Sa/so/j), perfect flowers of the corn-poppy, flower-heads of Ccntvurea deprcssa, and of Picris coronopi/olia. The flowers of the corn-poppy appear to have been gathered in an unopened condition to prevent the pe...

Salix hookeriana Barratt ex Hook., Hooker's Willow or Yakutat Willow, is illustrated. Its biological characteristics, history in cultivation and distribution are discussed. Infraspecific taxa compared, their distinctions noted.

Trees alter microclimate and radiation budget in alley cropping systems, which turn change physiological processes of the grassland component. The influence trees on growth depends climate zone as well possibly weather conditions during respective interval. proportion shade-tolerant species further modifies tree effect growth, number annual harvests. We studied distance orientation relative to ...

1. Many Salicaceae species naturally form hybrid swarms with parental and hybrid taxa that differ in secondary chemical profile and in resistance to herbivores. Theoretically, the differential mortality in the seedling stage can lead to changes in trait expression and alter subsequent interactions between plants and herbivores. This study examines whether herbivory by the generalist slug Arion ...

Riparian cottonwood/willow forest assemblages are highly valued in the southwestern United States for their wildlife habitat, biodiversity, and watershed protection. Yet these forests are under considerable threat from climate change impacts on water resources and land-use activities to support human enterprise. Stream diversions, groundwater pumping, and extended drought have resulted in the d...