Volume 7, Issue 2 (summer 2003)
jwss 2003, 7(2): 205-213 |
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R. Mohammadi, A. F. Mirlohi. Influence of Endophytic Fungi on Improvement of Phenotypic Characteristics in Iranian Tall Fescue and Meadow Fescue. jwss 2003; 7 (2) :205-213
URL: http://jstnar.iut.ac.ir/article-1-476-en.html
URL: http://jstnar.iut.ac.ir/article-1-476-en.html
Abstract: (21421 Views)
A symbiotic relationship exists between the endophytic fungi of the genus Neotyphodium and many cool-season grasses. Endophytes can alter the growth as well as morphological and physiological characteristics of the host plant, thereby influencing the persistence and survival rate of infected plants. This study was conducted to evaluate the effects of endophyte on phenotypic characteristics of Iranian tall fescue (Festuca arundinacea Schreb.) and meadow fescue (Festuca pratensis Huds.). The experiment was set up as a completely randomized design with three replications in a factorial arrangement. The first factor was the two plant accessions and the secondary factor was the endophyte-infected and noninfected plants. The results showed that most of phenotypic characteristics significantly altered as a result of endophyte infection in both tall fescue and meadow fescue plants. Results of analysis of variance showed that the influence of endophyte fungus was positive and significant on tiller number, herbage yield, dry crown weight, dry root weight per plant, and crown depth. Also between plant accessions, there were significant differences for dry herbage yield, crown weight, dry root weight per plant, crown depth, and dry matter percentage. Plant by endophyte interaction was highly significant for crown depth and dry root weight per plant. Therefore, eudophytic fungi can be used to improve phenotypic characteristics in these plants.
Keywords: Endophytic fungi, Neotyphodium , Symbiosis, Phenotypic characteristics, Tall fescue, Meadow fescue
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