Effect of moisture regulation method on viability of wild cherry seeds and determination of its threshold drought tolerance

Document Type : Research article

Authors

1 M.Sc. Graduate of forestry, Faculty of Natural Resources, University of Tarbiat Modares

2 Associate Prof., Faculty of Natural Resources, University of Tarbiat Modares

3 Expert, Caspian Forest Seed Center

Abstract

Regulation of seed moisture content is one of the important factors in maintaining and increasing seeds durability and quality which is made by different methods. For this reason, the trial was conducted to regulate moisture content and to determine the threshold drought resistance of wild cherry seeds, using the weight method and oven and desiccator. After calculating weight of the seed samples at the specified moisture content levels, the trend of moisture reduction in oven by temperature change and in desiccator by silica gel was investigated. The results showed that there was high correlation between the calculated moisture content by weight method and the actual one. Thus using this method for prospecting the process of desiccation in wild cherry seeds is appropriate. Also during the process of desiccation, the seed's average viability in desiccator was more than that in oven. Due to stability of the wild cherry seed's viability during the process of moisture reduction, particular threshold for drought tolerance was not defined. Therefore, certain critical moisture content for seeds of this species might not be determined.

Keywords

References

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Iranian Journal of Forest and Poplar Research
Volume 20, Issue 3 - Serial Number 49
September 2012
Pages 523-514

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