The Respons Of Cuttings Of Different Juniper (Juniperus Polycarpos) To Light, And Hormone Treatments

Juniper Habitats is very extensive in Iran. There is some problems in rehabilitation of This species. To increase the possibility of reproduction of juniper, asexual reproduction of Juniperus polycarpus was studied by use of rooting in cuttings for four years. Cuttings are prepared in two size (high and short ) and treated before planting. Cuttings were treated by different light (red, blue and white) , different hormones (indole butyric acid and naphthalene acetic acid ), extract of willow ( with and without hydrogen peroxide 1%). Treated cuttings were planted in two different beds (fine and harsh bed). 49 Cuttings were planted in split plots. Statistical data were gathered from 25 cuttings in each plot. Statistical data were analyzed by SAS method and tested by Danken method. Light, hormones and bed composition treatments differed in 1%. The sizes of cuttings were significant in 5%. According to Danken test, the average of rooting in white light, fine bed composition and 2500ppm of IBA was %37.32 that belonged to A group. In addition, the rooting of cuttings were studied in J. Sabina, J. oblonga , J.communis and J.foetidissma. Light, hormones and bed composition treatments were significant (1%) in rooting of J. Sabina cuttings. The average of rooting in combination of white light, fine bed composition and 2500ppm of IBA treatments was 49.32% that belonged to A group. Light and bed composition treatments were significant (1%) and hormones treatments were significant (5%) in rooting of J.oblonga cuttings. The average of rooting in combination of white light, fine bed composition and 5000ppm of IBA treatments was 28% that belonged to A group. The treatments of bed composition (1%) and light and hormones (5%) were significant in rooting of J.communis. The interaction between light and bed composition treatments and interaction between bed composition and hormones treatments were significant (5%). According to Danken test, the average of rooting in combination of white light, fine bed composition and 5000ppm of IBA treatments was 25.32% that belonged to A group. Rooting of J. foetidissma cuttings showed that light, bed composition and hormones treatments were significant (1%). The interaction between light and bed composition treatments and interaction between bed composition and hormones treatments were significant (5%). According to Danken test, the average of rooting in combination of white light, fine bed composition and 5000ppm of IBA treatments was 16% that belonged to A group.