Effect of age of rootstock and time of grafting on the success of epicotyls grafting in jackfruit (Artocarpus heterophyllus L.)
2003
Islam, M.M. | Haque, M.A. | Hossain, M.M. (Bangladesh Agricultural Univ., Mymensingh (Bangladesh). Dept. of Horticulture)
The experiment was carried out at the orchard of jackfruit research project, Bangladesh Agricultural University, Mymensingh during the period from July 2000 to October 2001 to find out the effect of age of rootstock and time of grafting on the success of epicotyls grafting in jackfruit. The experiment consists of three ages of rootstock viz., 7, 14 and 21 days and seven month of grafting viz., August, September, October of 2000 and April, May, June, July of 2001. It was conducted in randomized complete block design with three replications. Age of rootstock and time of grafting had significant effect on all the parameters studied. The highest success (39.84 %), the minimum time required to bud break (18.78 days) and the highest survival (34.41 %) were found in 14 days old rootstock. In case of time of grafting, the highest success (49.55 %) and survival (45.47 %) and the maximum growth of grafts were observed in the month of June. On the contrary, the lowest success (10.08 %) and survival (13.92 %) were found in April. The maximum time required to bud break was found in the month of October (24.79 days) while it was minimum in July (20.72 days). The treatment combination of 14 days old rootstock in the month of June produced the highest success (57.33 %), the highest survival (53.71 %) and the growth of grafts. Therefore, 14 days old rootstock and grafting in the month of June is the best for the propagation of jackfruit through epicotyls grafting.
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