Volume 5, Issue 15 (6-2015)
2015, 5(15): 47-56 |
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Khajeali M, Mohammadkhani A. The Effects of Timing and Grafting Methods on Graft Success and Scion Growth in Walnut (Juglans regia L.). Journal of Crop Production and Processing 2015; 5 (15) :47-56
URL: http://jcpp.iut.ac.ir/article-1-2323-en.html
URL: http://jcpp.iut.ac.ir/article-1-2323-en.html
Department of Horticulture, College of Agriculture, Shahrekord University, Iran.
Abstract: (16374 Views)
This study was carried out to determine the best method and time of budding and grafting in walnut under controlled conditions in Saman, Chaharmahal Va Bakhtiari Province. The experiment was in completely randomized design with 13 treatments, including cleft, splice and whip-tongue grafting on February 4, chip budding on April 4, 19, May 5 and 20, and T-budding and patch budding each one on first of June, July and August in three replications (each replication, including ten seedlings). All grafted seedlings were cultivated in 10-liter plastic pots. Plants were transferred into the greenhouse at about 25 °C and relative humidity of at least 70%. Chip budding, T-budding and patch budding was performed in the greenhouse. Successful budding and grafting were determined after four and 12 weeks, respectively. Furthermore, stem length, diameter and leaf number were evaluated after 12 weeks. The results were suggestive of significant differences between the different grafting methods and times at 1% level. The highest successful grafting was obtained in T-budding (100%) and patch budding (93.3%) in August, followed by T-budding and patch budding in July (80%), and patch (73/3%) and T-budding (60%) in June. Cleft and whip-tongue indicated 46% and 40% successful grafting, respectively. In this study, splice and chip grafting were not proven successful. The highest length and diameter of scion were obtained from the patch budding in June, and the highest leaf number was obtained in whip-though grafting. Finally, the best successful grafting was obtained when grafting was conducted at August, and the highest scion length and diameter were obtained when grafting was carried out in June.
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