Abstract:
An experiment was conducted in the experimental field of Sher-e-Bangla Agricultural
University, Sher-e-Bangla Nagar, Dhaka, from mid-November, 2013 to May, 2014 to
study varietal performance of brinjal against brinjal shoot and fruit (Leucinodes
orbonalis Guinee.). The varieties are BARI brinjal 1, BARI hybrid brinjal 3, BARI
brinjal 3, BARI hybrid brinjal 4, BARI brinjal 5, BARI brinjal 6, BARI brinjal 7, BARI
brinjal 8, BARI brinjal 9, BARI brinjal 10 .The experiment was laid out in single factor
Randomized Complete Block Design (RCBD) with three replications. The data were
recorded on shoot infestation; fruit infestation by number and weight at vegetative,
early, mid and late fruiting stages; plant and yield related attributes as well as yield of
brinjal. Among all varieties, V6 (BARI brinjal 6) showed best performance against
brinjal shoot and fruit borer and reduced the highest percent of shoot infestation, fruit
infestation by number and weight in early, mid and late stages (1.18, 3.54 and 2.74%,
respectively) throughout the growing period of brinjal. Besides, BARI hybrid brinjal 3
showed best performance in case of single fruit weight, fruit number per plant and yield
throughout the growing period of brinjal. In case of yield, BARI hybrid brinjal gave
highest production. On the other hand, BARI brinjal 7 showed lowest performance in
case of shoot infestation, infestation and fruit infestation by number and by weight,
thrichome hair density and thorn on stem and leaves. It was revealed from the
experiments, V6 (BARI brinjal 6) showed best result and V7 (BARI brinjal 7) showed
least performance in case of shoot infestation, fruit infestation by number and weight in
early, mid and late stages, number of fruits per plant and single fruit weight and yield.
Brinjal yield was increased due to increases of number of branches per plant, number of
leaf per plant and plant height.
Description:
A Thesis
submitted to
the Department of Entomology, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
ENTOMOLOGY
SEMESTER: JULY-DECEMBER, 2012