EFFECT OF MICRONUTRIENTS AND PLANT GROWTH REGULATORS ON MORPHO-PHYSIOLOGICAL CHARACTERS AND YIELD OF CAULIFLOWER
Date
2018-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRICULTURAL BOTANY, SHER-E-BANGLA AGRICULTURAL UNIVERSITY , DHAKA -1207
Abstract
The experiment was conducted during the period from 7 November 2017 to 22 February 2018 in the
experimental field of Sher-e- Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka which laid out
in a Randomized Complete Block Design (RCBD) with three replications. The research on ‘Durga’
variety of cauliflower with a view to know the effects of micronutrients and plant growth regulators on
Morpho-physiological characters and yield of cauliflower. Micronutrients were applied before
transplanting as basal application except control treated plot along with urea, TSP, MP, Furadan 5G for
field preparation and plant growth regulators were applied at two different days after transplanting as
foliar application including seven treatments of both micronutrients and plant growth regulators which
were statistically analyzed combindly for accurately detected and compared. Treatments)- T
o
, H
o
(Control)
; T
1
: 5s kg/ha B; T
2
= 5 kg/ha Zn; T
3
: 5 kg/ha B + 5 kg/ha Zn; T
4
: 5 kg/ha B + 5 kg/ha Zn + 50 ppm
IAA; T
5
: 5 kg/ha B + 5 kg/ha Zn + 50 ppm GA
3;
T
6
:
: 5 kg/ha B + 5 kg/ha Zn + 50ppm IAA + 50 ppm GA
3
.
The maximum plant height, plant canopy, length of leaves at 40 DAT and chlorophyll content at 41 DAT
were (45.32cm, 62.76cm, 28.21cm, 55.31 respectively) recorded from treatment T
6
but the maximum
breadth (16.38cm) and num. of leaves (21.46) were found from treatment T
4
and
T
3
respectively while the
minimum was (31.93cm, 42.03cm, 21.45cm, 50.17 respectively) found from treatment T
o
except length of
leaves that found from T
1.
At 55 DAT, the maximum plant height, plant canopy, length, breadth and
number of leaves were (53.39cm, 71.73cm, 31.61cm, 18.3cm and 24.33 respectively) found from
treatment T
6
while minimum were (35.13cm, 45.90cm, 23.32cm, 12.08cm, 15.13 respectively) found
from control treatment T
o
. After harvesting maximum stem length, curd diameter, weight of leaves, roots,
fresh curd, marketable curd and fresh curd yield per bed, marketable curd yield ton per hectare and dry
weight of leaves, roots, fresh curd were (15.11cm, 23.89cm, 754.06gm, 155.87gm, 1549.33gm, 2113gm,
30986.67gm/bed, 70.43ton/ha, 60.67gm, 28.02gm, 44.30gm respectively) resulted from treatment T
6
while only micronutrients treated on plants showed their higher resulted were (11.52cm, 20.15cm,
766.73gm, 58.16gm, 904.40gm, 1427.66gm, 18088gm/bed, 47.59ton/ha, 61.03gm, 16.93gm, 33.93gm
respectively) found from treatment T
3
except stem length (T
2
), chlorophyll content and leaf area index
(T
1
) and minimum were (8.32cm, 9.98cm, 327.78gm, 43.66gm, 430.80gm, 512.06gm, 8616gm/bed,
17.06ton/ha, 33.32gm, 22.19gm, 13.56gm respectively) resulted from control treatment T
o
except weight
of roots and dry roots which were found from treatment T
1
. Among those treatments, T
4
treated
plots were taken very few intended (43no.) days from transplanting to curd initiation and T
6,
combined
treatment of micronutrient and plant growth regulators on plants induced superior result of Morphophysiological
characters and yield of cauliflower than only micronutrients treated plants or any other
treatments.
B
o
, Zn
o
and T
6
Description
A Thesis
Submitted to the Department of Agricultural Botany
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN AGRICULTURAL BOTANY
SEMESTER: JANUARY- JUNE, 2018
Keywords
MICRONUTRIENTS, PLANT GROWTH REGULATORS, MORPHO-PHYSIOLOGICAL CHARACTERS, CAULIFLOWER