EFFECTS OF METHODS OF GRAFTING AND AGE OF ROOTSTOCK ON PROPAGATION OF OFF-SEASON GERMPLASMS OF JACKFRUIT

M. A.  Mannan; M. M.  Islam; S. A. K. U.  Khan

doi:10.53808/KUS.2006.7.2.0610-L

Authors

M. A. Mannan Agrotechnology Discipline, Khulna University, Khulna-9208, Bangladesh
M. M. Islam Agrotechnology Discipline, Khulna University, Khulna-9208, Bangladesh
S. A. K. U. Khan Agrotechnology Discipline, Khulna University, Khulna-9208, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2006.7.2.0610-L

Keywords:

Grafting, rootstock age, propagation, jackfruit

Abstract

An experiment was conducted to the effect of methods of grafting and age of rootstock in off-season jackfruit propagation. Higher success of grafting was observed in cleft grafting with 7, 10 and 14-day old rootstock (89.24, 89.24 and 63.58%, respectively) and that was lower in splice grafting with 118, 22, 26 and 30- day old rootstock (0.91%). The higher values of success (84.99%) was found with 7 day-old rootstock and the highest time was required to bud break (35 days), to emergence of first leaf (38.78 days), and to first flush (42.83 days) in 14 -day old rootstock, whereas the highest percentage of survivality (99.98%) was recorded in 7 and 14-day old rootstocks in cleft grafting. Taller plant was obtained in cleft grafting with 7-day, 10-day and 14-day old rootstock (25.50, 23.78 and 23.00 cm, respectively) 180 days after grafting (DAG). Almost similar growth of scion was observed with 7-day, 10-day and 14-day old rootstocks (5.67, 5.59 and 5.62 cm, respectively) 180 DAG. Number of leaves, length of leaves and breadth of leaves were also higher in cleft grafting with 7-day, 10-day and 14-day old rootstocks.

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