ISSN: 1813-0410

Author : Ali, JawadKadhim

Propagation of Rosa dumetorumThuill.`laxa` andR. rugosaThunb. from root cuttings.

JawadKadhim Ali

journal of kerbala university, Volume 6, Issue 2, Pages 451-463

Shoot production on roots of R. rugosaThunb. showed some seasonal variation, fewest being produced in April and May. The application of 1 and 10 mg litre-1 BA to the whole segment of root cutting increased the number of shoot-buds. Increased shoot production also resulted from the application of 1500 mg litre-1 BA and 100 mg litre-1 IBA to the proximal and distal ends respectively. Root segments 0.3-1.5 cm thick and 15 cm long produced more shoots than shorter segments butthe number of shoots cm-1 was similar. Isolated roots of R. rugosa responded better to treatments than did those of R. dumetorumThuill. 'laxa'.