EFFICACY OF HERBICIDES AS AFFECTED BY
APPLICATION TIME IN WHEAT
Authors: M.Z. Reza, M.H.
Ali, M. Sultana and H.M.M. Tariq Hossain*
*Corresponding author, Email: hmmtariq@yahoo.com
Abstract
Efficacy of
different herbicides (Sencor 7 WG@ 500g ha-1,
Lintur 70 WG @ 250g ha-1,
Ronstar @ 1 liter ha-1) applied
at different growth stages of crop was studied for controlling weeds in wheat in a field
experiments at the research farm of Sher-e-Bangla Agricultural University
during 2007-08. A weedy check (no herbicide) was
also included for comparison. Significant differences were found among the
times of application of herbicides for biological yield, 1000 grains weight
(g), and grain yield (t ha-1). The interaction of the times of
application and herbicides was significant for grain yield. Maximum 1000 grains
weight (47.48g) was observed in plots treated with Ronstar, while minimum
(38.17g) in weedy check plots (no herbicide). Biological yield (7.0 t ha-1)
and grain yield (3.16 t ha-1) were higher in plots treated with
Ronstar while lower biological yield (4.5 t ha-1) and grain yield
(1.62 t ha-1) were in weedy check plots. Ronstar proved to be the
most effective herbicides giving the maximum
grain yield of (3.37 t ha-1) and biological yield (7.3 t ha-1),
when applied at 21 DAS in wheat.
Key words: Herbicides, Sencor
7 WG, Lintur 70 WG, Ronstar and wheat.
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Return Volume: Journal of Experimental Biosciences 6(2): July 2015
