INFLUENCE OF WEED FREE PERIODS ON GROWTH AND YIELD OF MUNGBEAN
Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
A field experiment was carried out at the research field of Sher-e-Bangla Agricultural
University, Dhaka during the period of March to June 2015 to study the influence of
weed free periods on growth and yield of mungbean. The experiment comprised of
two factors; Factor A: Variety (2) viz. BARI Mung-4 (V
ii
1
) and BARI Mung-6 (V
)
and Factor B: Weed free periods (6) viz. No weed free period (W
), 15 days weed free
period (W
2
), 25 days weed free period (W
3
1
), 35 days weed free period (W
), 45 days
weed free period (W
5
) and total weed free period (W
). The experiment was laid out in
factorial arrangements with Randomized Complete Block Design (RCBD) with three
replications. Results revealed that plant height (53.10 cm), number of leaflets plant
(30.39) and dry matter weight (19.42 g) plant
-1
6
were significantly higher in BARI
Mung-4 (V
1
) but number of seeds pod
-1
(12.05), pod length (9.10 cm), weight of 1000seed
(53.68 g), seed yield (1.73 t ha
-1
) and harvest index (42.07 %) were higher in
BARI Mung-6 (V
) at harvest. Weed number (225.33) and dry weight (35.65 g) of
weeds m
-2
2
were found to be higher in BARI Mung-6 (V
) at harvest. Total weed free
period (W
6
2
) showed better results in case of all growth and yield parameters than no
weed free period (W
). Results from interaction effect of variety and weed free
periods revealed that the highest plant height (54.67 cm), number of branches plant
1
(4.67), number of leaflets plant
-1
(34.33), number of pod plant
-1
(38.67), stover yield
(6.39 t ha
-1
) and biological yield (8.42 t ha
-1
) were observed in V
1
W
interaction but
number of seeds pod
-1
(12.33), pod length (9.29 cm), weight of 1000-seed (55.49 g),
pod yield (3.21 t ha
-1
), seed yield (2.04 t ha
-1
) and harvest index (54.19 %) were higher
in the interaction of V
2
W
at harvest. Weed number (368.0) and dry weight (94.82 g)
of weeds m
-2
6
were found to be higher in V
2
W
interaction at harvest. The overall
result showed that BARI Mung-6 (V
2
1
6
) with 35 days to total weed free periods (W
-
W
6
) produced better yield in mungbean
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
Keywords
WEED FREE PERIODS, MUNGBEAN