The effect of different soil properties on arbuscular mycorrhizal colonization of peanuts, sorghum and maize

ABSTRACT – (The effect of different soil properties on arbuscular mycorrhizal colonization of peanuts, sorghum and maize).Arbuscular mycorrhizal fungi (AMF) are important for plant growth since they increase mineral influx. However, symbiosis efficiencyis affected by many environmental factors. This study evaluated the effects of different treatments (+/- phosphorus; +/- liming; +/-organic matter; field, sandy or clayey soil textures) on root colonization (RC) of peanuts, sorghum and maize. The combination of theseresulted in seventy-two treatments. The 2×2×2×3×3 factorial experiment was laid out in a randomized design. All data were subjectedto variance analysis and the means were compared (Tukey at P≤0.05). Three months after seed germination, roots were collected toevaluate the percentage of RC. Results showed that soil texture and liming were the most important factors influencing colonizationpercentage in maize, sor ghum and peanuts by AMF. Significant dif ferences were also observed between the phytobionts. Or ganic matter(OM) had very little influence and phosphorus addition had no effect on RC.

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