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Murraya koenigii L. (family: Rutaceae), commonly referred to as curry leaf, is a highly valued plant due to its aroma and medicinal features. Two dominant AM species Glomus mosseae and Acaulospora laevis were isolated from the rhizospheric soil of M. koenigii. A pot experiment was performed to verify the interactive potential of G. mosseae and A. laevis alone or in combination with Pseudomonas fluorescens on M. koenigii. Various morphological and biochemical parameters were measured after 120 days. Overall results suggest that all co-inoculation treatments showed beneficial effects on all the growth, physiological and oil content. The overall results demonstrate that the co-inoculation of bioinoculants, like P. fluorescens with AM fungi, promotes higher AM colonization and spore number enhancing the nutrient acquisition, especially phosphorus (P), improving the rhizospheric condition of soil.
The study investigated the effects of arbuscular mycorrhizal inocula Endorize- Mix, and Endomix, and mode of organic-mineral fertilization, on mycorrhizal coloni­zation and growth of Chamaecyparis lawsoniana 'Golden Wonder', Taxus x media 'Hicksii' and Thuja occidentals 'Smaragd' under a nursery-container production system. The fertilizing combination consisted of compost (0, 10 and 20% v/v) and Osmocote Standard 5-6M (1.5 and 3 g dm-3). The frequency of mycorrhiza in the root system, and growth of plants were evaluated. The use of Endorize-Mix resulted with mycorrhiza formation in all tested plants. The use of Endorize-Mix and Endomix in the container nursery production system allowed for the possibility of achieving well mycorrhized coniferous plants cultivated in pure peat-moss substrate and fertilized at the recommended rate of Osmocote Standard 5 -6M. The use of Endorize-Mix amelio­rated growth of C. lawsoniana and the use of Endomix ameliorated the growth of T. media after two years of cultivation.
controlled release fertilizer (CRF) on mycorrhizal coloniza­tion, nutrient acquisition, and growth of Physocarpus opulifolius, Spiraea japónica and Potentilla fruticosa was investigated in a container experiment. The AMF treat­ments consisted of a commercial inoculum Endorize-Mix and non-inoculated (non- AMF) control. Compost was mixed with peat at different rates (0, 10 and 20% v/v). The CRF was applied at 100 and 50% of the manufacturer's recommended rate. Shoot fresh weights of all three species were affected by mycorrhizas the first year they were grown in containers. Differences between AMF and non-AMF plants were less significant in the second year. In the first year, species growth response to AMF in­oculation was positive for P. fruticosa, which was not dependent on CRF rate and compost addition to substrate. Species growth response to AMF inoculation ranged from neutral to negative in the first year for P. opulifolius and S. japonica depending on the CRF rate and compost addition to substrate. Mycorrhiza development was generally supported by increasing the rate of compost in peat substrate and suppressed under the recommended rate of CRF. AMF inoculation affected P content in plant tissue of all species, with a higher P content in AMF than in non-AMF plants, regard­less of the rate of CRF. However, the increased level of mycorrhizal colonization caused by AMF inoculum and higher phosphorus content in the leaves of all tested species did not correspond with higher biomass of plants. The greater participation of compost was in peat substrate, the more phosphorus and potassium contained all tested species. Shoot nitrogen content was not affected by AMF nor compost addition to peat substrate.
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