This article Citation:

S. Mohapatra, S.K.Tripathy and B.R Nayak. 2018. Amelioration of herbicide stress with plant growth regulators and nutrients in transplanted rice . Indian Journal of Weed Science : 50( 2) 108- 111.







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Volume Issue Publication year Page No Type of article
50 2 2018 108-111 Research article
Amelioration of herbicide stress with plant growth regulators and nutrients in transplanted rice

S. Mohapatra, S.K.Tripathy and B.R Nayak

DOI: http://dx.doi.org/10.5958/0974-8164.2018.00027.8

Email: sanjukta.mohapatra34@gmail.com
Address: Regional Research and Technology Transfer Station, Orissa University of Agriculture and Technology, Chiplima, Sambalpur, Odisha 768 025

Keywords:

Brassinolide 

Gibberellic acid

Herbicide toxicity

Transplanted rice

Yield



Abstract:

Foliar application of two plant growth regulators (PGR)-brassinolide at 0.5 ppm, gibberellic acid at 10 ppm and one complex fertilizer NPK 19:19:19 at 1% concentration were tested alone as well as in combination with control (double dose of fenoxaprop-ethyl) and absolute control (normal dose of fenoxaprop-ethyl) against herbicide stress to rice during Kharif 2015 and 2016. The treatments were given 5 days after application of fenoxaprop-ethyl as foliar spray. Among the PGRs and nutrients, tank mix application of brassinolide at 0.5 ppm + NPK 19:19:19 at 1% recorded the lowest incidence of phytotoxicity (1.2) at 30 days after application and gave the highest grain yield (6.12 t/ha), net returns (` 49,431/ha) and benefit : cost ratio (1.32). Grain yield was more (5.92 to 6.12 t/ha) in brassinolide treated plot than that of gibberellic acid (5.81 to 5.83 t/ha) indicating more effectiveness of brassinolide than gibberellic acid in mitigating herbicide stress. Use of plant growth regulator and nutrient prevented 25.9% yield loss due to herbicide stress in rice.





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