Root Colonisation By Rye Grass Case Study

Plants’ root colonisation by AMF has been demonstrated by numerous authors, in particularly Glomus spp. including R. iregularris formerly G. intradices (Chen et al. 2007; Bidondo et al. 2011; Calvo-Polanco et al. 2014; Liu et al. 2015). In this study, root colonisation was observed for all the studied treatments except for the control. Colonisation was not expected for the control since the soil was sterilised and this was obtained as the result (Fig. 1 and 2). Based on the results, the frequency and intensity of mychorrization obtained for the AMF used in this study show R. irregularis to have the highest level of root colonisation with rye grass. High root colonisation has been a common report for R. iregularris. Mechri et al. (2014), found
This could be the case in our study as shown in the result. However, in this study combination of species of Glomus spp. was used for the study, which may be the reason for low colonisation recorded for the various form of Glomus spp. used, that is, Glomus spp. and Glomus spp. Fertiliser. The effect that the fertilizers present in the glomus spp fertilizer could have on the root colonisation cannot be jettison. According to de Miranda and Harris (1994), the presence of fertiliser in the soil or substrate, particularly Phosphorus, can influence the symbiosis relationship between the plants and the AMF by either hindering root colonisation or inhibiting plant growth. This was observed at the beginning of the experiment. No sprouting was observed in the pots treated with Glomus spp fertilizer until the … day (Plate 3.) The plants growth was slow at the start (Plate 6) and no colonisation was recorded after 26days (Table 2.). However, the level of phosphorus or other nutrients that could influence AMF symbiosis with plant was not specified, this make it difficult to ascertain the effect of the fertilizer contained by Glomus spp. fertilizer on root colonisation in this study. This is because root colonisation was observed for this particular treatment even better than Glomus spp. treatment (Fig) and the highest growth
Both the frequency and intensity of colonisation was found to increase with plant age for all treatments except control. The correlation between plant age and AMF has been suggested by ….. this calls for the attention of farmers and horticulturists the need for sufficient growth time in order for the plants to enjoy the benefits attributed to mychorizals. For the benefit of the purpose of this study, sufficient growth time will be required for any of the studied AMF to form colonisation with the present plants used for phytoremediation in the former manufacturing gas