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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(4): 2558-2563
DOI: https://doi.org/10.20546/ijcmas.2020.904.307


Bio-Efficacy of Different Herbicides on Weed Dynamics, Growth and Grain Yield of Transplanted Rice (Oryza sativa L.) in Odisha, India
Aurobindo Mohanta and A. K. Behura
Department of Agronomy, Institute of Agricultural Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar-751029, Odisha, India
*Corresponding author
Abstract:

The field experiment was conducted during kharif, to study the efficacy of different herbicides on weed dynamics, growth and grain yield of transplanted rice (Oryza sativa L.). The experiment was conducted in randomised block design with three replications and ten weed management practices. The treatments were T1-Pretilachlor (50% EC) @ 0.5kg a.i./ha 2 DAT, T2-Pretilachlor (50% EC) @ 0.5kg a.i./ha 2DAT fb 2,4-D Ethyl ester (38% EC) @ 0.5kg a.i./ha 21 DAT, T3-Bispyribac sodium (10% SC) @ 0.025kg a.i./ha 21 DAT, T4-Almix (20% WP) @ 0.004kg a.i./ha 3 & 21 DAT, T5-Penoxsulam (21.7% SC) @ 0.0225kg a.i./ha 21 DAT, T6-a premix herbicide combination of Penoxsulam 1.02%W/W + Cyhalofop butyl 5.1% W/W @ 0.135kg a.i./ha 21 DAT, T7-Fenoxaprop –p-ethyl  (9.3% EC) @ 0.06kg a.i./ha 21 DAT, T8-Pyrazosulfuron ethyl 10%WP @ 0.02kg a.i./ha 21 DAT, T9- 2 hand weedings at 30 & 45 DAT, T10- Weedy check. The soil of the experimental site was sandy loam in texture with pH 6.5. The test variety was “Naveen”. The result revealed that at 30 days after transplanting (DAT) weed flora comprised sedges (37.8%), broad leaf weeds (29.4%) and grasses (32.8%) and at 60 DAT the weed flora in the same order comprised 39.6, 31.0 and 29.4%, respectively. The highest grain yield (4.92 t/ha) was recorded with 2 hand weeding treatment and B:C ratio of 1.71 but in case of  post-emergence application of penoxsulam + cyhalofop butyl 0.135 kg a.i./ha gives grain yield of (4.42 t/ha) and B:C ratio of 1.89 which is the best herbicide treatment.


Keywords: Pretilachlor, 2,4-D Ethyl ester, Bispyribac sodium, Almix, Penoxsulam, Vivaya, Fenoxaprop –p-ethyl, Pyrazosulfuron ethyl, Grain yield, Transplanted rice
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How to cite this article:

Aurobindo Mohanta and Behura, A. K. 2020. Bio-Efficacy of Different Herbicides on Weed Dynamics, Growth and Grain Yield of Transplanted Rice (Oryza Sativa L.) in Odisha.Int.J.Curr.Microbiol.App.Sci. 9(4): 2558-2563. doi: https://doi.org/10.20546/ijcmas.2020.904.307