Volume 10, Issue 4 (winter 2007)
jwss 2007, 10(4): 227-239 |
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A. F. Mirlohi, M. R. Sabzalian, M. H. Ehtemam. Association of Endophytic Fungi with Earliness and Related Traits in Tall Fescue (Festuca arundinacea Schreb.) and Meadow Fescue (Festuca pratensis Huds.). jwss 2007; 10 (4) :227-239
URL: http://jstnar.iut.ac.ir/article-1-618-en.html
URL: http://jstnar.iut.ac.ir/article-1-618-en.html
Abstract: (21234 Views)
In order to evaluate endophyte effect on plant earliness, compatible host-endophyte combinations including four genotypes of tall fescue and two genotypes of meadow fescue were selected and used in this study. One tiller-part of each genotype was treated using a fungicide mixture of Propiconazole and Folicur. New tillers of endophyte-infected and endophyte-free plants were planted in the field according to a complete block design with three replications. The traits including days to head emergence, days to 50% anthesis, days to maturity initiation, number of heads (as a weekly measurement), total seed weight, net seed weight and empty seed weigh were measured. Results showed that endophytes can enhance head emergence, maturity initiation and periodical seed yield. Days to 50% anthesis, and days to maturity initiation were also reduced. Head numbers in some genotypes increased up to 2 times. Increase in net seed yield may show some physiological alterations in plant such as hormonal balance alteration which may provide better seed setting in infected plants. Based on this study, we concluded that endophytic fungi can induce earliness in infected host plants.
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