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Archive: Published Articles

ENVIRONMENT AND ECOLOGY

Interdisciplinary International Science Journal

Volume 41 (2023)
Issue 4B
Page No. 2633

Authors:

 

Harisha S., Seenappa C., Kalyana Murthy K. N.,

Thimmegowda M.N.,
Krishna Murthy R., Hanumanthappa D.C.,

Umashankar N.

Environment and Ecology 41 (4B) : 2633—2636, October—December 2023
Article DOI: https://doi.org/10.60151/envec/PPYA8264
ISSN 0970-0420

Mesotrione: A New Herbicide for Productivity and 
Profitability of Maize (Zea mays L.)

Harisha S., Seenappa C., Kalyana Murthy K. N., Thimmegowda M.N.,
Krishna Murthy R., Hanumanthappa D.C., Umashankar N.

Received 29 May 2023,  Accepted 17 August 2023, Published on 29 November 2023

ABSTRACT

 

The field experiment was conducted at Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK, Bengaluru during summer 2021 to evaluate the effect of new generation mesotrione herbicide on growth and yield of maize (Zea mays L.). The experiment consists of application of different doses of mesotrione herbicide as early post emergent (EPoE) and weed free check and unweeded control were replicated thrice in RCBD. Major weeds observed were Alternanthra sessilis, Borreria articularis, Euphorbia geniculata, Cynodon dactylon, Dactyloctenium aegyptium, Echinochloa colonum, Eleusine indica and Cyperus rotundus. Post-emergent application of mesotrione 48% SC @ 120 ml ai. ha-1 recoded higher kernel yield, stover yield of maize and BC ratio (6273 kg ha-1, 7583.7 kg ha-1 and 2.94 respectively) and it was on par with mesotrione 48% SC @ 144 ml a.i. ha-1 (6075 kg ha-1, 7430 kg ha-1 and 2.79 respectively). Weedy check recorded a kernel yield (3090.7 kg ha-1), lower stover yield (4096.3 kg ha-1) of maize and lower BC ratio (1.03) compared to other treatments.

Keywords    Mesotrione, Weed flora, Yield, Economics.

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