Abstract:
An experiment was conducted at the Horticulture Germplasm Center,
Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka during the
period from September 2019 to December 2019 to find out the multiplication
of water apple (Syzygium samarangense) cultivars through stem cutting using
different plant growth regulators. The experiment was laid out in Randomized
Complete Block Design having twelve treatment combinations, comprising
with two factors (A) Cultivars (C
ii
1
: Red water apple, C
: White water apple and
C
3
: Green water apple) and (B) Growth regulators (H
2
0
: Control, H
:Aloe vera
gel, H
2
: NAA-15mg/L, H
: Mixed rooting hormone (IAA, IBA and NAA) 3gm/L.
The treatments were repeated thrice. The effect of this treatments on
shooting, rooting, shoot and root growth parameters, and survival percentage
were studied. The results revealed that the different cultivars, growth
regulators and their interactions exerted significant influence on different
parameters studied. White water apple (C
3
) showed better multiplication
efficiency than Red and Green water apple. Whereas among the growth
regulators H
3
2
found superior in terms of significantly less days taken for
shooting and rooting of cuttings with maximum shooting and rooting
percentage. Similar trend were observed on the growth parameters of shoot and
root such as number of leaves, shoots and roots, percentage of shoot and root,
length of shoot and root, fresh and dry weight of plant, sprouting and survival
percentage. The interaction of cultivars and different growth regulators
concentrations revealed that C
2
H
recorded the maximum shooting, better
growth rate of roots and shoots at different intervals with higher sprouting and
survival percentage. On the basis of the results obtained, it was concluded that
the C
2
cultivar treated with H
3
3
recorded the highest shoot growth and survival
of cutting and was found most useful, healthy and vigorous planting materials
of water apple.
