Volume 11, Issue 32 (12-2019)                   jcb 2019, 11(32): 116-123 | Back to browse issues page

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Salimian Rizi S, Soltanloo H, Ramezanpour S, Choukan R, Nasrolahnezhad Ghomi A A. Determination of Optimum Irradiation Dose and Evaluation of Morphophysiological and Biochemical Indices of SC704 maize Hybrid under Different Doses of Gamma Irradiation. jcb. 2019; 11 (32) :116-123
URL: http://jcb.sanru.ac.ir/article-1-901-en.html
Gorgan University of Agricultural Sciences and Natural Sciences Gorgan University of Agricultural Sciences and Natural Resources
Abstract:   (217 Views)
     Mutations induced by gamma irradiation are part of improving some important agronomic traits in crops.  Identifying the optimal mutagenic dose is considered to be the most crucial step in trials and generating mutated genetic materials. The goal of this study was to evaluate the effect of different doses of gamma ray (0, 150, 200, 250 and 300 Gy) on some plant early stages traits and biochemical characteristics in SC704. Based on the probit analysis, the optimum gamma irradiation dose for induction of mutation in SC704 were 212.69 Gy. Significant differences were observed for irradiation dosage in all growth traits, including root length, shoot length, root fresh weight,  shoot fresh weight, root dry weight and shoot dry weight, plant height and survival percentage. As the dose level increased, total carbohydrates, malondialdehyde, hydrogen peroxide and catalase and peroxidase enzymes increased.

 
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Type of Study: Research | Subject: اصلاح موتاسيوني
Received: 2018/01/14 | Revised: 2020/02/2 | Accepted: 2018/09/2 | Published: 2020/01/13

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