Survival rate of T budding on Christ's thorn treF seedless variety (Ziziph us spina-christi)

Authors

1 Khuzestan Natural Resources Research Center

2 Research Institute of Forests and Rangelands. P.O. Box: I 3 I 85- I 16

Abstract

Christ's thorn tree (Ziziphus spina-christi) is an evergreen tree species naturally grown in southern part of Iran. Drought and salinity tolerance, tanin and saponin in its leaves and shoots are well known characteristics of the species.The fruits of the species are edible and in the case of breeding improvement it can be used as a horticulture tree. Regarding to a high cross-pollination in this species, many segregation is occurred, and maintenance of improved traits is impossible in progeny. Thus, it is worthwhile to seek for an asexual propagation method. T budding is a method carried out for the first time in this work in order to propagate a seedless fruit variety. Randomized complete block design with eight operation dates of budding were used as treatments in Khuzestan Province’s Botanical Garden. Scions were provided seedless Christ's thorn tree and rootstocks were used, from native species. Results showed that the effect of the date treatment is significant. Percentage of successful grafted trees on 14 October was 80% while other treatments indicated in lower performance. Monitoring of treated trees shows that the growth rate of grafted species are desirable and vegetative organs and fruits were phenotipically similar to their mother plants.

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