Mycorrhization Of Plant Nutrition - 1172 Words

Application of mycorrhization remarkably improved the plant nutrition, mainly with nitrogen and phosphorus (Salvioli et al. 2012 and Colella et al. 2014). This dependence seems to be confirmed by results of our studies, in which application of AM supplemented with CD and P showed higher N and P content as compared to red amaranth and indian spinach plants grown without AMF inoculation (Table†¦Ã¢â‚¬ ¦). Guo et al. (2006) reported that in general mycorrhizal colonization resulted in increased shoot N and P concentrations and content in onion. Arbuscular mycorrhizal fungus Glomus intraradices actively mobilize P from phosphates and increase the take up of more in roots inoculated with G. intraradices than those uninoculated (Antunes et al. 2007). In†¦show more content†¦It is clear from the present study that, solo application of AM fungi was less effective then combined application with cowdung or phpsphorus. This result was totally different to those of James W. Allen an d Yair Shachar-Hill, 2009 and Azcà ³n et al. 2003, who described that mycorrhizal enhanced S content in carrot and lettuce, respectively. Further study on red amaranth and Indian spinach is required to clarify this issue. AM inoculation with organic matter and phosphorus also increased Mg content in both vegetables and similar result was found by Azcà ³n et al. 2003. Our study revealed a non-significant effect of AM fungi on Ca concentration compared to non-colonized red amaranth plants. Similarly, Kothari et al. 1990 found decreased concentration of Ca in the shoot of maize under AMF inoculated condition. Several previous studies showed inconsistent results regarding Ca concentrations in different species due to mycorrhizal (Clark 1997, Alloush et al. 2000, Bagayoko et al. 2000). Marschner and Dell (1994) suggested that mycorrhizal plants might try to maintain low plant Ca concentrations as the presence of Ca-loaded polyphosphates possibly could harm the functioning of the arbuscules. Li et al. (2005) observed that inoculation with AM fungi significantly increased the contents of calcium in taro. On the contrary, calcium content increased in indian spinach due to the application of AM simplimented with cowdung and