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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

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

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Original Research Articles

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(7): 1634-1641
DOI: https://doi.org/10.20546/ijcmas.2020.907.188


Phytotoxicity, Flowering Time and Grain Conversion Efficiency of Transplanted Rice (Oryza sativa L.) in Response to Application of Selective Herbicides
T. Girwani1*, P. Murali Arthanari1, M. Djanaguiraman2 and C. R. Chinnamuthu1
1Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-3, India
2Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-3, India
*Corresponding author
Abstract:

A field experiment was conducted in Randomized complete block design to understand the effect of selective pre and post-emergence herbicides on physiology of rice crop in terms of visual toxicity, flowering and grain filling during the late samba season (October 2019 – February 2020) at wetland farms of Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu. Fourteen herbicide treatments namely Bensulfuron-methyl (0.6%) + Pretilachlor (6%), Metsulfuron-methyl + Chlorimuron-ethyl, Oxadiargyl, Pendimethalin, Butachlor, Pretilachlor as pre-emergence herbicides applied on 3 days after transplantation (DAT); Imazethapyr and Bispyribac-sodium as early post-emergence herbicides applied on 15 DAT; Fenoxaprop-P-ethyl and Cyhalofop-butyl as post-emergence applied on 20 DAT; and Pyrazosulfuron-ethyl as late post-emergence applied on 25 DAT along with herbicide free treatments involving two hand weeding (15 and 25 DAT), weed free check and a control (unweeded) were replicated thrice.The study revealed that pre-emergence application of Butachlor produced the best results with respect to all the three parameters investigated, while the early post-emergence application of Imazethapyr caused maximum damage to the crop, causing the highest phytotoxicity, prolonged 50% flowering and the lowest grain conversion.


Keywords: Phytotoxicity, 50% flowering, Grain conversion efficiency and Selective herbicides
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How to cite this article:

Girwani, T., P. Murali Arthanari, M. Djanaguiraman and Chinnamuthu, C. R. 2020. Phytotoxicity, Flowering Time and Grain Conversion Efficiency of Transplanted Rice (Oryza sativa L.) in Response to Application of Selective Herbicides.Int.J.Curr.Microbiol.App.Sci. 9(7): 1634-1641. doi: https://doi.org/10.20546/ijcmas.2020.907.188