%0 Journal Article
	%A Sh. Edrisi and  A. Farahbakhsh
	%D 2011
	%J International Journal of Agricultural and Biosystems Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 50, 2011
	%T Germination of Barley as Affected by the Allelopathy of Sisymbrium irio L. and Descurainiasophia (L.) Schur
	%U https://publications.waset.org/pdf/12540
	%V 50
	%X An experiment was conducted under controlled
conditions to study the effect of water extract of leaves, shoots and
roots of either Sisymbrium irio L. =SISIR and or Descurainia
sophia (L.) Schur =DESSO on the germination and primary growth
of barley. A split-split plot experiment in CRD with three
replications was used. The main plots were the type of weed: i.e.
SISIR and DESSO and the sub-plots were type of organ: i.e. leaf,
stem and root and, the sub-sub plots were concentration of the
water extract of each organ of the weeds: i.e. 0, 2, 4 and 8 % w/v.
The results showed that the SISIR water extracts had a greater
inhibitory effects on the germination and primary growth of barley
than those of DESSO water extracts. The water extracts of the
leaves of both weeds had the greatest inhibitory effects on the
germination and primary growth of barley, compared to those of
stems and roots. Increasing the concentration of water extracts of
leaves, stems and roots of both weeds up to 8 % caused the greatest
inhibitory effects to barley and reduced the germination rate and
primary growth of it linearly.
	%P 76 - 78