Effect of different levels of liguorice root powder of stem wood cutting on growth and rooting of grap c.v . Kamaly.Vitis vinifera L.

Abstract

An experiment was conducted during 2009 growing season to assess the effects of different levels of liquorice root powder at the weight of(0,10,20 and 30 g/kg.soil) which called(T1,T2,T3 ,T4) respectively on rooting of stem wood cuttings of grape c.v.Kamali that grown in polyethylen pots in wooden house at Kufa Technical Institute by the use of Randomized Complete Block Design (RCBD) with three replicates. Means were compared using Duncans Multiple Range Test at the probability level of 0.05 .Results showed that , all treatments epistasis on control treatment except for root and branches diameters, on the other hand ( T4) treatment (addition of 30 g/kg soil. of liquorice root powder) was superior at all treatments of all studied parameters,it has positive effects on the mean of(root length,leaf number,leaf area,adventitous root number,fresh and dry weights of shoot and total dry weight.Besides its positive effects on dry matter percentage of shoot and percentage of wood cutting success. Treatment (T4) gave the highest values of the above studied parameters,but at the same time there was no significant effect between T3 and T4 for the most of the studied parameters.