كفاءة المستخلص المائي لعرق السوس في الإكثار الخضري و إنتاج الدرينات الدقيقة لأربعة أصناف من البطاطا Solanum Tuberosum L. خارج الجسم الحي

Abstract EN

Different concentrations of the aqueous extract of licorice (0.5, 1.0 and 1.5 %) were tested and compared with the standard medium which used in multiplication and microtuberization of four potato cultivars (Arnova, Riviera, Provento and Bureen) propagated in vitro.

Data were recorded for the traits of shoots and roots growth (number and length of shoots, plant height, number of nodes and fresh and dry weight) as well as microtubers parameters namely (Number, Diameter, and Weight of Tuber) after 30 days of incubation.

The results showed that the cultivars varied in their response to the addition of the aqueous extract of licorice in all the traits of the shoots and roots growth.

The cultivar Arnova superiority at 10 mL-1 which gave the highest number of shoots and their length (4.40 Plant Shoot-1 , 4.00 cm, Respectively) while Riviera cv at 5 mL-1 concentration gave the highest rate in plant height reached 16.00 cm.

On the other hand, the addition of the aqueous extract of licorice had no significant effect on the phenotypic characteristics of the microtubers compared with standard medium, except the percentage of microtubers formation