TY  - JOUR
T1  - Effects of Various Levels of Cement Dust on Seed Germination and Early Seedling Growth in 2 Cultivars of<I> Helianthus annuus </I>L.
AU - , Farnoosh Zargari AU - , Hasan Hekmat Shoar 
JO  - Research Journal of Biological Sciences
VL  - 3
IS  - 10
SP  - 1189
EP  - 1193
PY  - 2008
DA  - 2001/08/19
SN  - 1815-8846
DO  - rjbsci.2008.1189.1193
UR  - https://makhillpublications.co/view-article.php?doi=rjbsci.2008.1189.1193
KW  - Cement dust
KW  -heavy metals
KW  -seed germination
KW  -seedling growth
KW  -Sunflower
AB  - In this study, the effects of cement dust-provided from cement factory complex of Soofian located in 30 Km north of Tabriz-Iran-on seed germination and early seedling growth including root, hypocotyl elongation and number of lateral roots in seedlings of 2 cultivars of <I>Helianthus annuus </I>L. Armavirusky and Eroflor-have been investigated. The seeds were exposed to 0, 0.42, 0.84, 1.26 and 1.68, 7 (g L <SUP>1</SUP>) of cement dust solutions on based of ISTA rules for 7 days. The obtained results showed that cement dust didn’t effect significantly on seed germination, root elongation and number of lateral roots in both cultivars compared to control group (p&gt;0.01) but hypocotyl length with increasing concentration of cement dust solution showed a significantly decrease in both cultivars (p&lt;0.01) compared control group seedlings. Hypocotyl growth was a more sensitive endpoint than root growth and number of lateral roots. There was no significant difference in seedling growth between 2 cultivars in similar treatments but it was significant in treatment of 7 g L <SUP>1</SUP> of cement solution in germination percent between these cultivars (p&lt;0.01).
ER  -