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Research Journal of Seed Science
  Year: 2017 | Volume: 10 | Issue: 1 | Page No.: 33-37
DOI: 10.3923/rjss.2017.33.37
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Improvements on Physiological Seed Quality of Festuca arundinacea Schreb by Encrusting Technology: Products and Storage Effects

M.E. Olivera, L. Ferrari, S. Araoz and E.B. Postulka

Background: The natural or artificial ageing reduces seed germination rate and seedling growth tolerance to adverse conditions. Some pre-germinating treatments, such as seed pelletting and encrusting can improve seed performance during storage and maintain this benefit until the end of this period. Objective: The aim of this study was to determine the impact of encrusting seeds before or after a storage period for 9 months on physiological seed quality of tall fescue (Festuca arundinacea Schreb.). Materials and Methods: The treatments applied before and after storage were: Tall fescue seeds treated with insecticide, treated with fungicide, treated with water, treated with micro nutrients, treated with dye, encrusted with talc+adhesive polymer or encrusted with insecticide+fungicide+micronutrients+talc+adherent polymer+dye. Response variables were germination and vigor in 2 experiments. Complete randomized block design was applied and data was analyze by ANOVA. The DGC test (p<0.05) was used to separate significant means. Results: Germination of encrusted seeds was significantly higher than control before and after storage. Seed encrusted before storage showed higher germination in comparison to seeds encrusted after storage. Insecticide commercially dosage generated negative effects on germination and vigor but this negative effect was diluted when it was part of the encrusted. Conclusion: It is concluded that a new combination of products that study as seed enhancement was achieved for tall fescue. This encrusting technology improves germination without affecting seedlings vigor of tall fescue whether performed before or after 9 months of storage. It is recommended to encrust seeds before storage (with lower levels of natural deterioration) than encrusting them after storage (with higher levels of natural deterioration) to not affect germination performance. Negative effects of imidacloprid on germination and mean daily germination are not transfer to encrusted seeds.
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How to cite this article:

M.E. Olivera, L. Ferrari, S. Araoz and E.B. Postulka, 2017. Improvements on Physiological Seed Quality of Festuca arundinacea Schreb by Encrusting Technology: Products and Storage Effects. Research Journal of Seed Science, 10: 33-37.

DOI: 10.3923/rjss.2017.33.37






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