Abstract:
An experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural
University Dhaka, from October-2019 to March-2020 to investigate the effect of
growth and yield response of white maize (SAUWMOP T61G) to different spacing
and irrigation frequencies in Rabi season. The experiment consisted of two factors.
Factor A: Irrigation frequencies (3) viz; I
1
: Irrigation at 20 days interval, I
2
: Irrigation
at 25 days interval and I
3
: Irrigation at 30 days interval and Factor B: Different
spacings (4) viz; S
1
: 50 cm × 20 cm, S
2
: 50cm × 25cm, S
3
: 60cm × 20cm and S
4
: 60
cm × 25cm. The experiment was laid out in Split Plot Design with three replications.
Results indicate intervals that different irrigation frequencies, spacings, and their
combination had a significant effect on growth, yield, and yield contributing
characters of white maize. In the case of different irrigation frequencies, the
maximum cob length plant
-1
(17.37cm), cob circumference plant
-1
(15.62cm), number
of rows cob
-1
(14.37), number of grains row
-1
(27.88), number of grains cob
(390.29), 1000 grains weight (378.67g), chaff weight cob
1
(18.45g), grain weight cob
-1
(93.99g), cob weight plant
-1
(11.86g), shell weight cob
-1
(124.30 g), grain yield
(7.67 t ha
-1
), stover yield (8.79 t ha
-1
) and biological yield (16.46 t ha
) were
observed in I
1
(Irrigation given at 20 days interval) treatment. In respect of different
spacings, the maximum grain yield (8.19 t ha
-1
) was observed in S
3
(60 cm × 20 cm)
treatment compared to other treatments. In the case of different treatment
combinations, I
1
S
3
treatment combinations performed best in respect of maximum
grain yield (8.66 t ha
-1
) production compared to other treatment combinations and can
be used as a recommended treatment for the production of highest grain yield in the
AEZ 28 (Agro-ecological zone) soils of Bangladesh.
Description:
A Thesis
Submitted to the Department of Agronomy, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka in partial
fulfillment of the requirement for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
