The effect of soil mixes and different concentrations of Naphthalene acetic acid (NAA) on the cutting rooting of Lawsoina inermis L.

Abstract

This present study was carried out in the lath house belong to the Department of Horticulture college of Agriculture. University of Basra during the period from March, 15th 2009. to May ,15th 2009. to investigate the effect of three propagation media for Lawsoina inermis L. :sand,(sand + loamy) , (sand + peatmose) after treatment with four NAA concentrations ( 0,4000,6000,8000 ) mg/L a complete Randomized Design ( CRD) with three replicates for each treatment and each experimental unit consists five cutting. Results could be summarized as Follows: The best propagation appeared to be the sand , sand encouraged rooting gave 77.86% , however the rooting media (sand + peatmose ) gave the least rooting 65.24% and also gave significant increased in the number of root and their length and also gave height number of branches 4.41/cutting the best concentration of NAA 4000,6000 mg/L which increased rooting 78.89% , 81.21% and the best negative growth. The interaction between rooting media and NAA concentration showed that sand the best rooting media with 4000 or 6000 mg/L in rooting percentage to be 87.53% and 83.00% but she reduced in 8000 mg/L NAA with (sand + peatmose ) to be 60.97% .