Record ID No. |
556 |
Author(s) |
Karagiannidis N., Bletsos F*., Stavropoulos N , 2002 |
Affiliation |
*National Agr Res Foundation,Agr Res Ctr Macedonia & Thrace,POB 312,Thermi 57001,Greece |
Title |
`Effect of Verticillium wilt (Verticillium dahliae Kleb.)and mycorrhiza (Glomus mosseae) on root colonization, growth and nutrient uptake in tomato and eggplant seedlings |
Source. Vol.(no):Page |
Scientia Horticulturae, 94(1-2), 145-156p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biological Interaction |
Sub-subjects |
Miscellaneous |
Host |
Solanum melongena, S. lycopersicum |
Organism |
Glomus mosseae, Verticillium dahliae |
Country |
Greece, Europe |
Abstracts |
The effect of the arbuscular mycorrhizal fungus (AMF) Glomus mossecte and the soil-borne Verticillium dahliae and their interaction on root colonization, plant growth and nutrient uptake were studied in eggplant and tomato seedlings grown in pots. It was found that: (a) root colonization by the
AMF as well as spore formation was higher (34.6 and 30.5%, respectively) in the eggplant than in tomato. Also it was twice as high in the mycorrhiza treatment than in the treatment with
the double inoculation (mycorrhiza + Verticillium); (b) the mycorrhiza treatment increased fresh and dry weight and mean plant height in tomato by 96, 114 and 21% compared to controls. The respective values in eggplant were 114, 104 and 30%; (c)
infection by Verticillium reduced fresh weight by 28%, dry weight by 35% and plant height by 14% in tomato. The respective reductions in eggplant were 27, 37 and 12%; (d) the treatment
combining both V. Dahliae + G. Mosseae increased fresh weight by 33%, dry weight by 24% and mean plant height by 21% in tomato. The respective increases in eggplant were 32, 10 and 16%. This leads to the conclusion that the beneficial effect of the AMF
supersedes the pathogenic effect of V dahliae; (e) P and N uptake were higher in mycorrhizal treatments than in controls, although no difference in K, Ca, Mg and B uptake was observed
between treatments; (f) mycorrhizal treatments had lower concentrations of micronutrients Zn, Mn, Fe and Cu in shoots and leaves than controls.
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