PJB-2022-66
Harnessing AM supplemented with phosphate fertilizer to ameliorate growth performance and essential oil yield in Mentha arvensis L. and Mentha longifolia L.
Tanvir Burni
Abstract
Biofertilizers are becoming more popular for crop production because they are more environmentally friendly than chemical fertilizers. The purpose of this experiment was to compare different levels of phosphorus fertilizer (0%, 25%, 50%, and 100%) with that of arbuscular mycorrhizal fungi as biofertilizers on two varieties of Mentha. Plant growth parameters, mineral and proximate assimilation, mycorrhizal dependence, essential oil percentages, colonization intensity, and the density of spores were investigated. In various parameters, mycorrhizal plants outperformed non-mycorrhizal plants. In all evaluated parameters, M. arvensis responded better to AM inoculation than M. longifolia. The interaction of different levels of phosphate fertilizer with AM revealed that mycorrhizal fungi responses were more promising at a high level of applied phosphate fertilizer. It has been observed that as fertility levels rise, mineral and proximate concentrations in mycorrhizal plants increase. At a low phosphate level, inoculated M. arvensis and M. longifolia had the highest mycorrhizal dependency values of 38.38% and 31.57%, respectively. M. arvensis was found to be more dependent than M. longifolia. Mycorrhizal plants produced a higher percentage of essential oil in both Mentha species. M. arvensis and M. longifolia had high spore densities (361+0.01 and 254+0.12 /100 g of soil) and percentage infection (86.33+0.01 and 84.98+2.01) without any fertilizer. AMF should be managed to aid in the reduction of artificial fertilizers and other agrochemical inputs, thereby improving the nutritional values and long-term viability of plants in low-fertility soil.
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