Review paper: Integrated seed health strategy to prevent seed degeneration

Document Type : Research Paper

Author

Research Associate Professor, Seed and Plant Certification and Registration Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran

Abstract

True-to-type and pathogen-free plant propagating materials are among the most necessary inputs to achieve sustainable agriculture. Some of plant pathogens and pests are transmitted via true seeds to the next generations in certain circumstances but all are transmitted through vegetative plant propagating materials. Using informal propagating materials and successive cycles of vegetative propagation has caused accumulation of pathogens and pests specifically in plants propagated by means of tubers, corms and rhizomes. This, in turn, has resulted in crop yield reduction in quantitative, qualitative and salability points of view. This phenomenon called seed degeneration and is very common in regions where farmers, for any reason (s), use informal seeds produced on-farm or acquired from markets. Several factors including climate, life cycles of pathogens and pests and their relation with other entities and environment influence seed degeneration. The present article focuses on details of seed degeneration, related factors and finally on integrated strategy based on these factors to prevent/mitigate this phenomenon.

Keywords

References

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Iranian Journal of Seed Sciences and Research
Volume 6, Issue 4
February 2020
Pages 557-569

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