JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

About Journal
    Editor in Chief
    Editorial Board
    Reviewer Panel
    Publication Policies
    Guidelines for Editors
    Guidelines for Reviewers
    Abstracting and Indexing
    Subscription and Payments
    Contact Journal
Read Journal
    Current Issue
    Journal Archives
For Authors
    Guidelines for Authors
    Terms and Conditions
    Fees and Payments
    Track Paper Status
    JEB Awards

Google Search the Journal web-site:

    Abstract - Issue Jul 2021, 42 (4)                                     Back

nstantaneous and historical temperature effects on a-pinene

Effect of foliar application of bioregulators for improving high temperature tolerance of wheat (Triticum aestivum L.)


H. Lakhran1*, O.P. Sharma2, R. Bajiya3, J.R. Choudhary4, S. Kanwar2 and M. Choudhary2

1Department of Agronomy, COA, Nagaur, Agriculture University, Jodhpur-341 001, India

2Department of Agronomy, Sri Karan Narendra Agriculture University, Jobner-303 329, India

3Department of Agronomy, Agricultural Research Sub Station, Nagaur, Agriculture University, Jodhpur-341 001, India

4Department of Plant Breeding & Genetics, Indian Agricultural Research Institute, New Delhi-110 012, India

*Corresponding Author Email :


Received: 14.07.2020                                                                   Revised: 30.09.2020                                              Accepted: 12.12.2020




Aim: The aim of the present study was to evaluate the effect of sowing at different thermal environments and its interaction with foliar spray of bio-regulators on yield and yield contributing traits in wheat.

Methodology: The present study was conducted by using split plot design with four replications consisting of 24 treatments, namely, main plots: three sowing at different thermal environments (22oC, 20oC and 18oC) and sub plots: eight foliar spray of bioregulators (control, water spray, salicylic acid @ 100 ppm, salicylic acid @ 200 ppm, thio salicylic acid @ 100 ppm, thio salicylic acid @ 200 ppm, thioglycolic acid @ 100 ppm and thioglycolic acid @ 200 ppm).

Results: The results indicated that sowing at 20oC recorded the maximum yield parameters viz, effective tillers/m row length, length of ear, no. of grains per ear, test weight, days to maturity and grain, straw and biological yield of wheat over sowing at 22oC and 18oC temperature. Sowing at different thermal environment treatments was found to be non-significant with harvest index of wheat. Among the foliar spray of bioregulators, the treatment B4 (SA @ 200 ppm) significantly increased the yield components and yield, while remaining at par with B6 (TSA @ 200 ppm) and B8 (TGA @ 200 ppm) proved superior in comparison to rest of the treatments. However, the significantly higher harvest index was obtained under B4 (SA @ 200 ppm) treatment and was statistically at par with all other treatments, except B1 and B2.      

Interpretation: It is concluded that salicylic acid @ 200 ppm at tillering (40-45 DAS) and ear emergence (60-65 DAS) stage may be sprayed on 20oC temperature sown crop is a viable option to improve wheat yield under semi-arid environment.

Key words: Bioregulators, Foliar spray, Sowing temperature, Wheat, Yield attributes




Copyright © 2021 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).