Investigation on accelerated aging on quantitative and qualitative traits of Malva neglecta wallr., Portulaca oleracea L. and amaranthus retroflexus L.

Document Type : Research Paper

Authors

1 MSc Graduated of Agronomy, Department of Agronomy, Faculty of Agriculture, University of Tarbiat Modares, Tehran, Iran

2 Professor, Department of Agronomy, Faculty of Agriculture, University of Tarbiat Modares, Tehran, Iran

3 Ph.D Candidate of Agronomy, Department of Agronomy, Faculty of Agriculture, University of Tarbiat Modares, Tehran, Iran

Abstract

In order to study the effects of accelerated aging on quantitative and qualitative characteristics germination of Malva neglecta, Portulaca oleracea and Amaranthus retroflexus experiments a completely randomized factorial design were conducted in the research laboratory of the college of agriculture, University of Tarbiat Modarres during 2018. Treatments were accelerated aging, respectively, at five levels (0, 24, 48, 72 and 96 hours Placing seeds in an environment with a relative humidity of 100% and a temperature of 45 degrees Celsius) Were considered as the first factor and weed species as the second factor. The results showed that all traits were influenced by the interaction of factors. In optimum conditions (without accelerated aging) Portulaca oleracea and Amaranthus retroflexus highest percentage germination and seedling emergence. But, the results about the antioxidant enzyme activity and protein concentration was different in three weed species, so that the highest catalase activity was obtained in the Malva neglecta and Amaranthus retroflexus under 24 hours Seed aging treated and 72 and 96 hours seed aging treated on Portulaca oleracea. Overall the results of this study showed that, it was concluded that seed quality of weeds Species was seriously decreased under the aging conditions.

Keywords

References

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Iranian Journal of Seed Sciences and Research
Volume 7, Issue 4
January 2021
Pages 405-416

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