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Title

INVESTIGATION ON IMPROVEMENT OF SEXUALAND VEGETATIVE PROPAGATION OF JUDAS TREE (CERCIS SILIQLLASTRUM L.)

Pages

  25-38

Abstract

 Experiments were conducted, from 1997 to 1999, to investigate the effects of various treatments on sexual and ASEXUAL PROPAGATION of judastree (CercissiliquastrulLll.). In SEXUAL PROPAGATION, seeds were scarified by concentrated sulfuric acid for 0, 30, 45 and 60 min. For stratification treatment, seeds were kept for 0, 15, 30 and 45 d at 3-5°C. Also to evaluate the effects of gibberellic acid treatments, seeds were soaked in solutions of 0, 125, 250 and 500 mg mgl-1 for 24 hr. In ASEXUAL PROPAGATION, cuttings were treated with naphthalene acetic acid at concentrations of 0, 2500, 5000, 7500 and 10000 mg rl or with indolebutyric acid at concentrations of 0, 4000, 8000, 12000 and 16000 mgl-1  for 5 to 7 s. All treatments were conducted as a completely randomized design with a factorial arrangement. In SEXUAL PROPAGATION, each treatment consisted of four replications and in ASEXUAL PROPAGATION each treatment was replicated six times. Means of two successive years were used for statistical analysis. Means were compared using Duncan's new multiple range test (DNMRT) at 1% level of probability.The results obtained in this research indicated that scarification was necessary for water uptake by seeds, while it was not adequate for germination. Scarification plus stratification or using gibberellic acid resulted in seed germination. The interaction of scarification and stratification and also scarification and gibberellic acid showed that the highest germination percentage 98 and 97% was obtained from 60 min scarification and 45 d stratification or 60 min scarification and using 500 mg mgl-1 gibberellic acid which was significant at 1% level of probability compared to control. The highest hypocotyl fresh weights (1.6 and 2.12 g, respectively) were obtained from 60 min scarification and 45 d stratification or 60 min scarification and using 500 mgl-1 gibberellic acid. The highest germination value (94.383 and 273.24, respectively) resulted from 45 min scarification and 45 d stratification or 60 min scarification and using 500 mgl-1 gibberellic acid.ASEXUAL PROPAGATION results showed that hardwood and semi hardwood cuttings were not able to root and only a few percent of softwood cuttings were rooted. These results indicated that auxins under the conditions of this research had a poor ability to induce rooting in this species. However, the highest rooting percentage of softwood cuttings (5 and 3.3 %, respectively) was obtained from 10000 mgl-1 naphthalene acetic acid or 16000 mgl-1 indolebutyric acid.Based on the  data obtained in these experiments, it can be concluded that SEXUAL PROPAGATION of this species is recommendable and for optimum germination, seed can be scarified by concentrated sulfuric acid for 45 to 60 min and then being stratified at 3-50°C for 45 d. Alternatively, seeds can be treated with gibberellic acid with concentration of 500 mgl-1 for 24 hr instead of stratification.

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    APA: Copy

    FARAH MAND, HOMAYOUN, & KHOSH KHOUEI, M.. (2001). INVESTIGATION ON IMPROVEMENT OF SEXUALAND VEGETATIVE PROPAGATION OF JUDAS TREE (CERCIS SILIQLLASTRUM L.). IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, 2(1-2), 25-38. SID. https://sid.ir/paper/80766/en

    Vancouver: Copy

    FARAH MAND HOMAYOUN, KHOSH KHOUEI M.. INVESTIGATION ON IMPROVEMENT OF SEXUALAND VEGETATIVE PROPAGATION OF JUDAS TREE (CERCIS SILIQLLASTRUM L.). IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY[Internet]. 2001;2(1-2):25-38. Available from: https://sid.ir/paper/80766/en

    IEEE: Copy

    HOMAYOUN FARAH MAND, and M. KHOSH KHOUEI, “INVESTIGATION ON IMPROVEMENT OF SEXUALAND VEGETATIVE PROPAGATION OF JUDAS TREE (CERCIS SILIQLLASTRUM L.),” IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, vol. 2, no. 1-2, pp. 25–38, 2001, [Online]. Available: https://sid.ir/paper/80766/en

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