The Efficiency of Mycorrhizal Fungi on Growth Characteristics and some Nutrients Uptake of Plane tree Seedling (Platanus orientalis L.)
Introduction: Drought stress is one of the most important abiotic stresses which significantly reduce yield and growth of most of plants. Plane tree is one of the important trees planted in the urban landscapes of Iran. One of the major limiting factors of landscapes development is providing water f...
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Veröffentlicht in: | Majallah-i ʻulūm-i bāghbānī 2016-07, Vol.29 (4), p.537-546 |
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Zusammenfassung: | Introduction: Drought stress is one of the most important abiotic stresses which significantly reduce yield and growth of most of plants. Plane tree is one of the important trees planted in the urban landscapes of Iran. One of the major limiting factors of landscapes development is providing water for plants. Deficit irrigation is a desirable method for saving water use in water deficit conditions and ultimately reducing necessary cost of water securement to landscape plants. Moreover, inoculation of plant root with mycorrhizal fungi can be considered as a method to reduce water demand of plants. In addition, mycorrhiza can increase plant resistance against environmental stress, such as salinity, temperature stress, drought stress and etc. Mycorrhiza can improve drought stress through enhancing water uptake as result of extra radical hyphae and stomatal regulation or transpiration. Increasing P concentration by mycorrhiza inoculation can be another mechansim for drought resistance in plants. The purpose of the present study was to evaluate two Glomus species in combination together on plane tree under water deficit for growth characteristics and nutrients uptake such as P, Fe and Zn concentration. Materials and Methods: This outdoor experiment was conducted at - Isfahan University of Technology, Isfahan, Iran, with average temperature 14.2 ºC and 27.9 ºC night/day, respectively and relative humidity 35-70% between Mar and Aug 2012 and repeated under the same condition in 2013. This experiment was carried out to evaluate the effect of inoculation with mycorrhizal fungus on plane saplings response to different applicable water levels (50 and 100% of water needs) based on a completely randomized design with 3 replications. The treatments were control (without fertilizer), Germans peat + fertilizer, Germans peat + fertilizer + mycorrhiza in 50% of field capacity and Germans peat + fertilizer + mycorrhizain 100% of field capacity. The Mycorrhiza fungi (mycorrhizal root, soil containing spore and extra radical mycelium) were obtained from Institute of Soil and Water Research (Tehran, Iran). There were inoculums treatments: two AM fungus inoculums (G. intraradices and G. mosseae) with combination of both. The inoculated dosage was approximately 80 spores g-1 for G. intraradices and 80 spores g-1 for G. mosseae, calculated by microscope before the experiment. Plants were irrigated daily base of 100% FC after the confidence of establishing plants about 2 months and |
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ISSN: | 2008-4730 2423-3986 |
DOI: | 10.22067/jhorts4.v29i4.25940 |