Sher-e-Bangla Agricultural University

Thesis paper


MANAGEMENT OF MUNGBEAN YELLOW MOSAIC THROUGH SOME SELECTED CHEMICALS, BOTANICALS AND ULTURAL TREATMENTS
 
Category:  SAU MS Thesis
N° Catalog: SAU200701_154
University: SAU
Department: Plant Pathology
Year: 2007
File: 1st part: sau200701_154.pdf
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ABSTRACT

A research was conducted at Sher-e-Bangla Agricultural University, Dhaka,
Bangladesh during the period March to July 2007 for the management of mungbean
yellow mosaic through some insecticides, plant extracts and cultural treatments on
BARI Mung-5. The ten different treatments of the experiment were T1 = Admire
200SL @ 1 ml/1 litre of water at 7 days interval; T2= Actara 25WG @ 0.4 gm/1 litre
of water at 7 days interval; T3= Marshal @ 3 ml/1 litre of water at 7 days interval; T4
= Ripcord @ 1.7 ml/1 litre of water used at 7 days interval, T5= Neem leaf extract
(1:4 w/v); Tè = Garlic clove extract (1:4 w/v); T7= Allamanda leaf extract (1:4 w/v);
T8 = Yellow trap; T9= Reflective tape and T10= Untreated (control). At 50 Days after
sowing the lowest (15.85%) disease symptoms expressed in true leaves was recorded
for treatment T1 and the highest (26.33%) in T10. At 50 DAS the lowest (6.67%)
disease incidence was recorded for T1 and the highest (27.67%) in T10. At 50 DAS the
lowest (3.95) disease severity was recorded for T1 and the highest (7.10) in T10- The
tallest (46.52 cm) plant was recorded in T1 and the shortest (38.44 cm) plant was
recorded in T10- The highest (23.50) number of pods per plant was recorded in T1,
while the lowest (14.84) number of pods per plant was recorded in T10- The maximum
(9.26 cm) pod length was recorded in T1 and the minimum (8.00 cm) pod length was
recorded in T10 and T9. The maximum (11.55) number of seeds per pod was recorded
in T1, while the minimum (8.05) number of seeds per pod was recorded in T10- The
highest (41.25 g) 1000 seed weight was recorded in T1, while the lowest (35.74 g)
1000 seeds weight was recorded in T10. The highest (1.28 t/ha) yield was recorded for
treatment T1 and the lowest (1.02 t/ha) yield was recorded in T10-Chemical treatment
showed the best result among the treatments.T1gave the best performance in which
disease incidence was reduced by 21.02% and the yield was increased by 25.49%.
Among all botanicals and cultural treatments T5 gave the best performance in which
disease incidence declined by 18.67% and the yield was increased by 17.65%.