Record ID No. |
2346 |
Author(s) |
Bolandnazar, S , 2009 |
Affiliation |
Department of Horticultural Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran. e-mail: sbolandnazar@gmail.com |
Title |
The effect of mycorrhizal fungi on onion (Allium cepa L.) growth and yield under three irrigation intervals at field condition |
Source. Vol.(no):Page |
Journal of Food Agriculture & Environment. 7(2): 360-362p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Fungal evaluation |
Host |
Allium cepa (Onion) |
Organism |
Glomus versiforme, G intraradices and G. etunicatum |
Country |
Iran, East Asia |
Abstracts |
For a sustainable agriculture, the use of arbuscular mycorrhizal fungi (AMF) for improving plant performance, mineral nutrition and water uptake has been attracted great attention in recent years. The response of Azar-Shahr red onion to 3 species of mycorrhizal fungi (Glomus versiforme, G intraradices and G. etunicatum) under 3 irrigation intervals was studied during two consecutive years. Pre-inoculated onion seedlings and un-inoculated ones were transplanted to 6 m(2) plots. The plants were irrigated every 7, 9 and 11 days after establishment. The results indicated that mycorrhizal colonization significantly increased seedling survival in all irrigation intervals and seedling establishment were increased more than 21% by mycorrhizal colonization. Onions colonized by G versiforme at 9-day irrigation interval had the highest leaf area at bulbing stage (633.6 cm(2)) and non-mycorrhizal plants at 11-day irrigation interval had the lowest leaf area(305.2 cm(2)). Mycorrhizal colonization improved onion bulb yield about 3 fold in comparison with control plants. Onions colonized by G versiforme and G intraradices under 7 and 9 day irrigation intervals and G. etunicatum at 7-day irrigation interval produced the highest marketable bulb (more than 35 t/ha) and non-mycorrhizal plants at 11-day irrigation interval had the lowest marketable yield (5.7 t/ha). |