Germination study of seeds of some species of the Zygophyllaceae B.R. family under different environmental and laboratory conditions in Basra Governorate.

Abstract

This reaserch study germination for three species from Zyophyllaceae family : Fagonia bruguieri (shuika) , Peganum
harmala (harmal) , Tribulus terresteris ( kutob) .
The experiment condected by repeated three times and emergenc of radicale indication of germination . So two sets of seeds have used in study , one set after ripining season directly and other six month later . First stage planted in natural inviroment by soil bringing from plant, s inviroment in pots in room temperature in three times periods in January , February and April .The result: germination has failed with new ripining seeds but Peganum harmala has small percentge of germination , when the other set of seeds have succeeded germination at same three periods with different percentage  among three species . The other experiment conducted in laboratory under physical conditions to breaking dormancy of seeds . The result: three species have different ranges for germination under different inviromental conditions .