M. E. HOQUE1*, M. MOSHIUR RAHMAN2, A. K. M. ARIFUL HOQUE3 and M. A. HOSSAIN4
1Senior Scientific Officer, Hill Tract Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Ramgarh, Khagrachari Hill District, 2Senior Scientific Officer, Regional Horticulture Research Station, BARI, Sibpur, Narsingdi, 3Scientific Officer, Regional Horticulture Research Station, BARI, Sibpur, Narsingdi and 4Scientific Officer, Seed Technology Division, BARI, Gazipur, Bangladesh.
*Corresponding author’s Email: e.hoque1976@gmail.com
ABSTRACT
The effects of Indole Butyric Acid (IBA) and time of layering on success and survivability rambutan was investigated in Pomology Division, Horticulture Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh during the year 2014-2015. Trials were conducted in four different months, viz. (i) March, (ii) May, (iii) June and (iv) September using four level of Indole Butyric Acid (IBA) as the rooting hormone viz. 1500, 3000, 4500 and 0 ppm. In this experiment layres treated by 0 ppm IBA (only distill water) served as control. Result revealed that IBA enhanced the root initiation and induced rooting in a shorter duration. Air layering trials in September and March operation under 1500 and 3000 ppm IBA treatment exhibited maximum rooting percentage. The percent success after transplanting was found higher in May and July operation.
Keywords: Indole Butyric Acid, Air Layering and Rambutan.