نتایج جستجو برای: willow

تعداد نتایج: 2089  

2014
Shufeng Wang Xiang Shi Haijing Sun Yitai Chen Hongwei Pan Xiaoe Yang Tariq Rafiq Manuel Reigosa

Willow species have been suggested for use in the remediation of contaminated soils due to their high biomass production, fast growth, and high accumulation of heavy metals. The tolerance and accumulation of metals may vary among willow species and varieties, and the assessment of this variability is vital for selecting willow species/varieties for phytoremediation applications. Here, we examin...

Aloyce M. Kilemwa, Ch. Lekha K. Rai Sharma NB Singh

The objective of the article is to investigate the variability in growth and wood properties of the willow clones. The growth and wood traits of four year old 21 clones willow clones were investigated. Analysis of variance showed that willow clones differed significantly for all the studied growth and wood traits. Among the growth parameters the maximum heritability value was shown by height wh...

Journal: :int. j. lignocellulosic products 2014
k. rai sharma aloyce m. kilemwa nb singh ch. lekha

the objective of the article is to investigate the variability in growth and wood properties of the willow clones. the growth and wood traits of four year old 21 clones willow clones were investigated. analysis of variance showed that willow clones differed significantly for all the studied growth and wood traits. among the growth parameters the maximum heritability value was shown by height wh...

2013
Joels Ens Richard E. Farrell Nicolas Bélanger

Willow (Salix spp.) is currently being researched as a source of biomass energy in Canada. However, it is not certain whether afforestation with willow plantations will enhance or diminish soil C storage and nutrient availability. Trees are known to have pronounced effects on biologically mediated nutrient cycling processes which can increase nutrient availability, but willows are known to be n...

2007
D. A. WALKER

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 ...

2014
Sim-Hee Han Soo-Jeong Shin

*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...

Journal: :Offset 1969

1999
J. Ross M. Mõttus

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...

2009
David E. Busch Stanley D. Smith

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...

2016

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...

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