YIELD AND TUBER QUALITY OF POTATO VARIETIES AS INFLUENCED BY ORGANIC MANURE AND MULCH MATERIAL
Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
Five experiments were conducted at agronomy field laboratory of Sher-e-Bangla
Agricultural University (SAU), Dhaka, Bangladesh and two others potato growing regions
of Rajbari and Thakurgaon districts of Bangladesh during three consecutive years from
2014-2015 to 2016-2017 to study the performance of some selected potato varieties
and their quality improvement through agronomic practices. The first four
experiments were conducted at SAU experimental field and the fifth was conducted in
three AEZs like AEZ-28, AEZ-12 and AEZ-1 for SAU campus, Dhaka, Rajbari
district and Thakurgaon, respectively. Experiments were laid out in RCBD design with
three replications. The results reveal that BARI Alu-25 showed highest yield at all
locations and at Thakurgaon location the yield was 5.92% and 5.79% higher than
Dhaka and Rajbari locations, respectively. Considering marketable yield and >75 g
sized tuber yield, the highest (32.84 and 16.08 t ha
-1
, respectively) was found with
BARI Alu-25 (V
1
) at Thakurgaon. In case of processing quality tuber, BARI Alu-29
(V
3
) gave highest chips tuber yield (27.34 t ha
-1
), chips tuber number (66.95). The
highest tuber dry matter (23.32%) and specific gravity value (1.10) were also revealed
with BARI Alu-29. But BARI Alu-25 gave highest french fry tuber yield (6.74, 6.38
and 6.20 t ha
-1
) at Rajbari, Dhaka and Thakurgaon location, respectively. Application
of poultry litter (O
2
) showed the highest yield in Rajbari, Dhaka and Thakurgaon
(39.13, 37.87 and 37.75 t ha
-1
) which was 52.68, 43.67 and 39.87%, higher yield
respectively over no manure treatment. Poultry litter (O
2
) also gave the highest tuber
number hill
1
-1
(7.78 no.) and tuber weight hill
-1
(0.39 kg), chips tuber yield (27.62 t ha
) and chips tuber number (58.40 %). Poultry litter gave the highest dry matter
(24.49%) at Rajbari. The highest specific gravity, total soluble solid were contributed
by (O
2
) poultry litter which was similar with (O
1
) cowdung. In case of mulching, water
hyacinth (M
1
), rice straw (M
2
) and rice husk (M
3
) gave non-significant yield
but
numerically rice straw (M
2
) gave the highest yield (33.33 t ha
) and highest
marketable yield (31.83 t ha
-1
) at Dhaka. Rice straw gave highest chips tuber (56.91
%), higher dry matter (22.23%), specific gravity (1.079) and total soluble solid
-1
(6.58
-
o
Brix) than other two mulch materials. The performance of rice straw as mulch material
seems superior than other mulches due to its wider availability throughout the country
as well as in potato growing region. The interaction of V
1
5
O
2
(BARI Alu-25 × poultry
litter) contributed the highest tuber yield (42.46 t ha
-1
), highest tuber weight hill
(0.39
kg). Rajbari location gave highest chips tuber yield (31.09 t ha
-1
) with V
3
(BARI
Alu-29 × poultry litter) interaction, french fry tuber yield (8.12 t ha
(BARI Alu-25 × cowdung) interaction and dry matter weight (25.53%) with V
2
(BARI Alu-28 × cowdung). On the other hand, the interaction of V
1
O
3
(BARI Alu25
×
ACI
organic
fertilizer
×
cowdung)
and
V
1
O
2
M
2
(BARI Alu-25 × poultry litter ×
rice straw) found promising for higher yield (42.36 and 40.95 t ha
-1
, respectively) of
potato tuber.
Description
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
(Prof. Dr. Tuhin Suvra Roy)
Co-Supervisor
for the degree of
DOCTOR OF PHILOSOPHY (Ph.D)
IN
AGRONOMY
Keywords
POTATO VARIETIES, INFLUENCED BY ORGANIC, MANURE AND MULCH MATERIAL