Effect of post-emergence herbicides on yield and economics of sesame (Sesamum indicum)
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Date
2016
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Abstract
An experiment was conducted during the rainy (kharif) seasons of 2013 and 2014 at Gwalior, Madhya Pradesh,
to study effect of post-emergence herbicides on yield and economics of sesame (Sesamum indicum L.). The experiment
was laid out in a randomzied block design (RBD) replicated thrice, with 8 treatments. Sesame variety
‘TKG 22’ was grown by adopting recommended package of practices except weed-control measures which were
applied as per treatments. Two hand-weedings at 20 and 40 days after sowing (DAS) gave significantly higher
weed control efficiency (94.14%), followed by propaquizafop @ 125 g a.i./ha (69.51%) over rest of the weed-control
treatments. Pooled results showed significantly higher growth and yield attributes and seed yield (718 kg/ha),
stalk yield (3,243 kg/ha), gross income ( 73.4 × 103), net income ( 47.3 × 103) and benefit: cost ratio (2.82) under
2 hand-weeding at 20 and 40 DAS over rest of the weed-control treatments, followed by propaquizafop @ 50 g
a.i./ha. Application of propaquizafop @ 125 g a.i./ha produced phytotoxicity on sesame plants and subsequently
affected the growth attributes in crop; however, symptoms of chlorosis disappeared 25–30 days after application
of herbicides.
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Agronomy
Citation
Indian Journal of Agronomy, Vol. 61 (3): 372-376