Efficacy of post- emergence application of Imazethapyr in summer mungbean (Vigna radiata L.) 

DOI: 10.18805/lr.v0iOF.6793    | Article Id: LR-3246 | Page : 96-100
Citation :- Efficacy of post- emergence application of Imazethapyr in summer mungbean (Vigna radiata L.) .Legume Research.2016.(39):96-100

Narendra Kumar*, K.K. Hazra and N. Nadarajan

Address :

Indian Institute of Pulses Research, Kanpur–208 024, India 


Imazethapyr is a now emerging post-emergence (PoE) herbicide for pulses. A field experiment was conducted for two consecutive years (2011-12) to assess the efficacy of imazethapyr in summer mungbean (Vigna radiate L.) in a mild alkaline soil of Kanpur, India. Treatment comprised of five different doses of Imazethapyr [0 (Weedy check), 40, 60, 80, 100 g ha-1] along with weed free treatment. Results revealed that summer mungbean yield was reduced up to 38.6% due to weeds infestation. Post-emergence application of imazethapyr significantly reduced the (P£0.05) weed population and weed biomass and the herbicide effectiveness was increased up to the dose of @ 80 g/ha. The relative suppression effect of imazethapyr was in the order of grassy weed>Sedges>broad-leaf weeds. However, the study suggest that the dose of 100 g/ha is needed for suppressing the Cyperus spp. to a significant extent. The weed control efficiency (WCE) of imazethayr was more than 40 per cent at a dose of 100 g/ha and the corresponding value of weed control index (WCI) was more than 60 per cent. The highest average grain yield of summer mungbean was recorded in weed free plot (926 g/ha) which was on a par with imazethapyr @ 100 g/ha (920 kg/ha) and imazethapyr @ 80 g/ha (883 kg/ha). The increase yield under imazethapyr treated plots was mainly due to the increase in plant biomass, nodule number, root weight, number of seed per plant and number of pod per plant. Although, the net return was highest under imazethapyr @ 100 g/ha (Rs. 24, 880/ha) the marginal rate of return was higher in imazethapyr @ 80 g/ha (627%).


Imazethapyr Summer mungbean Weed control index Yield


  1. Awan F.K., Ashraf Zahid M. and Yaqoob M. (2009). Weed management in mungbean (Vigna radiata (l.) R.wilczek) using different methods and row spacing. Pak. J. Weed Sci. Res., 15:269-274.
  2. Chadha M.L. (2010). Short Duration Mungbean: A New Success in South Asia. Asia-Pacific Association of Agricultural Research Institutions c/o FAO Regional Office for Asia and the Pacific Bangkok, Thailand. pp. 3.
  3. Chattha M.R., Jamil M. and Mahmood T.Z. (2007). Yield and yield components of mungbean as affected by various weed control methods under rain-fed conditions of Pakistan. Int. J. Agric. Biol., 9:114–119
  4. Gill, G.S. and Kumar V. (1969). Weed index- a new method for reporting weed control trials. Indian J. Agron., 14:96-98.
  5. Kumar N. (2010). Imazethapyr: A potential post-emergence herbicide for kharif pulses. Pulses Newsletter, 21(3):5.
  6. Kumar N., Mina B.L., Singh K.P., Chandra S., Kumar M. and Srivastva A.K. (2010). Weed control for yield and profit maximization in wheat (Triticum aestivum) in Indian Himalayas. Indian J. Agron., 55:119-122.
  7. Meena D.S., Baldev R., Chaman J. and Tetarwal J.P. (2011). Efficacy of imazethapyr on weed management in soybean. Indian J. Weed Sci., 43:169-171.
  8. Patil V.C. and Patil S.V. (1983). Studies on weed control in Bamboo. Indian J. Weed Sci., 15:83-86
  9. Prakash V., Narendra Kumar and Srivastva A.K. (2006). Crop-weed competition in onion (Allium cepa) under mid-hills condition of north-west Himalayas. Indian J. Agric. Sci., 76:744-746.
  10. Qzair C.A., Malik B.A. and Bashir M. (1989). Critical period of crop-weed competition in urdbean and mungbean. Pak. J. Agric. Res., 10:341-345.
  11. Raman R. and Krishnamoorthy R. (2005). Nodulation and yield of mungbean {Vigna radiate (L.)} influenced by integrated weed management practices. Legume Res., 28:128-130.
  12. Royuela M Gonzalez A., Gonzalez E.M., Cesar Arrese-lgor, Pedro M. Aparicio-Tejo and Carmen Gonzalez-Murua. (2000). Physiological consequences of continuous, sublethal imazethapyr supply to pea plants. Plant Physio., 157:345-354.
  13. Tewari A.N., Rathi J.P.S., Tiwari S.N. and Tripathi A.K. (2004). Efficacy of imazethapyr - a selective herbicide in green gram with special reference to Parthenium hysterophorus control. Farm Sci. J., 13:114-115. 

Global Footprints