Comparison of radiosensitivity of two rice (Oryza sativa L.) varieties to gamma rays and electron beam in M1 generation

  • R. Gowthami*, C. Vanniarajan, J. Souframanien and M. Arumugam Pillai AGRICULTURAL COLLEGE AND RESEARCH INSTITUTE, MADURAI
Keywords: Electron beam, Gamma rays, LD¬50 value, and germination.

Abstract

The present study was carried out to compare effect of gamma rays and electron beam on two rice varieties viz., ADT-37 and ADT(R) 45. Dried seeds of both the varieties were treated with gamma rays and electron beam with different doses viz., 100Gy, 200Gy, 300Gy, 400Gy, 500Gy for gamma rays and 200Gy, 300Gy, 400Gy, 500Gy, 600Gy for electron beam along with the control. The lethal dose was determined by probit analysis.  LD50 dose for ADT-37 and ADT(R) 45 was 300.03Gy and 300.00Gy for gamma rays and 286.45Gy and 275.05Gy for electron beam respectively. Results showed that germination, shoot length, root length, seedling height on 20th day, pollen fertility and spikelet fertility in M1 generation reduced steadily with the increasing doses of both mutagens. Based on the overall consideration of M1 effects, the variety ADT(R) 45 was more sensitive to mutagens than ADT-37 and a prominent reduction was noticed in electron beam compared to gamma rays in both the varieties.

Author Biography

R. Gowthami*, C. Vanniarajan, J. Souframanien and M. Arumugam Pillai, AGRICULTURAL COLLEGE AND RESEARCH INSTITUTE, MADURAI
Dept. of Plant Breeding and Genetics
Published
22-10-2017
How to Cite
R. Gowthami*, C. Vanniarajan, J. Souframanien and M. Arumugam Pillai
Comparison of radiosensitivity of two rice Oryza sativa L. varieties to gamma rays and electron beam in M1 generation. 2017. Electronic Journal of Plant Breeding, 8 3, 732-741. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/1164
Issue
Vol 8 No 3 (2017)
Section
Research Article

It is certified that:

  • The corresponding author is fully responsible for any disputes arising due to the publication of his/her manuscript.
  • The article has been seen by all the authors who are satisfied with its form and content.
  • The sequence of names of authors in the by-line is as per their relative contribution to this experiment, giving due credit to all scientists who made notable contribution to it.
  • All the authors fully understand that inclusion of any other co-authors or exclusion of any co-authors is not possible once the article has been submitted to the journal.
  • The corresponding author takes full responsibility for this article.
  • The address of the organization where the research was conducted is given.
  • The article is exclusive for this journal, and the results reported here have not been sent (and will not be sent during its consideration by this journal) for publication in any other journal.
  • Authors agree to abide by the objective comments of referees and do agree to modify the article into a short note as per the recommendation, for publication in the Electronic Journal of Plant Breeding.
  • If published in Electronic Journal of Plant Breeding, the copyright of this article would vest with the Indian Society of Plant Breeders, who will have the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in it, and neither we nor our legal heirs will have any claims on royalty.