1Department of Agronomy, G.B. Pant University of Agriculture & Technology, Pantnagar, U.S. Nagar, Uttarakhand, India
2Department of Plant Pathology, G.B. Pant University of Agriculture & Technology, Pantnagar, U.S. Nagar, Uttarakhand, India
3Department of Agronomy, Dr. Rajendra Prasad Central Agricultural University, Pusa-848125, Samastipur, Bihar, India
*Corresponding author: biswajit@rpcau.ac.in
Online published on 27 August, 2020.
Lodging is an acute problem in high yielding rice cultivars reducing a huge loss of the yield. Considering this acute problem, an experiment was laid out in Norman E. Borlaug Crop Research Centre of GBPUA&T, Pantnagar. In this study, the effects of the plant growth regulator Trinexapac-ethyl (TE) on the plant height, lodging, and grain yield of rice (Oryza sativa L.) were evaluated over two growing seasons (2015 and 2016). The experiments were designed in a randomized complete block design with three replicates. Application of Trinexapac-ethyl 250 EC at 40 g a.i./ha showed the minimum plant height of 93.6 and 95.5 cm. Trinexapac-ethyl 250 EC at 40 g a.i./ha reduced the lodging of the crop by reducing its height which was statistically at par with Trinexapac-ethyl 250 EC at 30 g a.i./ha. This treatment also exhibited the higher grain yield of transplanted rice due to reduction in lodging.
Lodging, Rice, Trinexapac-ethyl, Yield
