INFLUENCE OF ZINC ON YIELD AND QUALITY OF AROMATIC RICE
Date
2018-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY, SHER-E-BANGLA AGRICULTURAL UNIVERSITY
Abstract
The experiment was conducted at the experimental field of Sher-e-Bangla
Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period of June
to December 2017 to find out the influence of zinc on yield and quality of
aromatic rice. Aromatic rice cultivars Dulhabhog, Chinigura, Khoisanne and
Chiniatab were used in this experiment. The experiment consisted of two factors
viz., Factor A: Four levels of zinc (Zn) such as-Zn
1
: 2.5 kg Zn ha
: 3.0 kg
Zn ha
-1
, Zn
3
: 3.5 kg Zn ha
-1
, Zn
4
: 4.0 kg Zn ha
-1
; and Factor B: Four cultivars of
aromatic rice such as- V
1
: Dulhabhog, V
2
: Chinigura, V
3
-1
, Zn
2
: Khoisanne and V
4
:
Chiniatab. The two factors experiment was laid out in a split-plot design with
three replications. Zn level were assigned to main plot and variety to sub plot.
Data were recorded on yield attributes, yield and quality of aromatic rice. The
result revealed that zinc level had no significant effect on grain yield. Results
revealed that supplementation of zinc and/or different varieties had significant
effect on most of the yield and quality contributing parameters. Effective tillers,
filled grains, weight of milled rice, protein content, proline content and grain 2Acetyl-1-pyrroline
(2-AP) content increased with increasing zinc level. But Zn
level had no significant effect on 1000 grains weight, grain yield, harvest index
and amylose content among the four aromatic rice varieties. The highest grain
yield was observed from V
1
, highest proline content was found from V
2
and
maximum grain 2-AP content was found from V
3
. Among the 16 treatment
combinations, the highest plant height (54.77, 87.76, 120.78, 127.49 and 130.79
cm, respectively) was observed from Zn
4
V
1
at different date, respectively. The
highest grain yield (2.94 ha
-1
) was found from Zn
4
V
1
. The highest proline
content (26.74 mg g
-1
) was recorded from Zn
4
V
2
on dry weight (DW) basis. The
highest grain-2AP content (1.41 µg g
-1
) was recorded from Zn
4
V
3
on dry weight
(DW) basis. So it may be concluded that applications 4.0 kg Zn ha
aromatic
rice variety Dulhabhog showed the superior characters among the other
treatments in consideration of yield and quality. On the other hand, application
of 4 kg Zn ha
-1
and aromatic rice variety Khoisanne showed the best
performance in case of protein, amylose and 2-AP content but not on proline.
-1
on
Description
A Thesis
Submitted to the Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
in partial fulfilment of the requirements
for the degree
of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
SEMESTER: JANUARY-JUNE, 2018
Keywords
ZINC, AROMATIC RICE