Jornal Europeu de Biologia Experimental Acesso livre

Abstrato

clonal propagation of osyris lanceolata plant through air layering at bazawit hill northern ethiopia an endangered medicinal and sandal wood plant in east africa

Adugnaw Admas

In the recent years medicinal and other economical important plants are getting attention due to the presence of therapeutically important active contents; however over exploitation   and propagation problems are  the major concern for conservation of several economically important  plant species.  Among   economical important plants an attempt has been made to develop a propagation method for  African sandalwood (Osyris lanceolata) by air layering approach aiming at providing an alternative propagation technique to the use of seeds or cuttings that germinate or root poorly. Air layers were applied  root hormone to the stem branches of Osyris lanceolata (still attached to the plant) during November 2019, at Bazawit Hill,Northern Ethiopia at  edge  of Blue-Nile River  from its source at Lake Tana  .Root initiation were   starts  after  12  weeks of the experiments.The factors assessed in this experiment were the effect IBA as rooting promoter at three concentrations (0,50, 100 and 150 ppm) .From the data collected it was observed 88.8%  rooting were achieved from air layers in the mother plants it self those treated by IBA hormone and the controls not responding root.Making this propagation technique is a viable alternative to the use of seed or cutting propagation. Rooting response success were  influenced by application of rooting hormone   of IBA,soil composition and the seasons . At a rate of 150 ppm 100% all experimented plants were initiated and primarily other than other treatments responded  root. The significance enhancing of root making on Osyris lanceolata plants stem via   air layers is  linked to the advantage of more rooting hormone concentration