TY  - JOUR
T1  - Under-Ground Biomass Characteristic of Perennial Species (<I>Onosma trachtricum</I>) in Northwest Iran (Till Area of Shabestar)
AU - Shadkami-Til, Hamideh AU - Bibalani, Ghassem Habibi 
JO  - Research Journal of Biological Sciences
VL  - 5
IS  - 9
SP  - 628
EP  - 631
PY  - 2010
DA  - 2001/08/19
SN  - 1815-8846
DO  - rjbsci.2010.628.631
UR  - https://makhillpublications.co/view-article.php?doi=rjbsci.2010.628.631
KW  - Root biomass
KW  -Onosma trachtricum
KW  -rangeland and soil
KW  -grasses
KW  -Shabestar district
KW  -Til village
AB  - <I>Onosma trachtricum </I>(Boiss.) is an important perennial native grass widespread in the range areas of the arid and semi-arid Phytogeographical region in Northwest Iran. Previous studies have shown great variability in forage biomass production per plant among different varieties. Research area is of rangeland of Til village from Shabestar district with distance is 25 km from it. This area is semi arid area and this land covered with natural range land grasses. Root and shoot in these species were sampled in one stage from late March late to late August. Roots of plants stable soils on slope and provide resistance against the forces that improve slope instability. We studied,<I> Onosma trachtricum</I> to determine, its characteristics. Data were collected with random sampling in this area with 1 m<SUP>2</SUP> in 64 quadrate plots. Mean, max and min root biomass of this plant is 1.14, 13.05, 5.22 g m<SUP>-2</SUP>, respectively.
ER  -