Alfalfa and sorghum productivity: ¿Do different arbuscular mycorrhizal fungi (AMF) inoculum affect their primary productivity?
DOI:
https://doi.org/10.58720/ibs.v2i2.30Keywords:
Aerial primary production, Glomeromycota, Sorghum bicolor, Medicago sativaAbstract
Primary productivity (PP) is a rate that measures an important ecosystem process and determines the yield of agricultural crops. High-intensity agronomic management has notably contributed to the deterioration of natural resources, which is why sustainable agricultural production is a great challenge for modern agriculture. Arbuscular mycorrhizal fungi (AMF) form a symbiotic association (arbuscular mycorrhiza, AM) with plant roots that contributes to their growth by increasing the absorption of mineral nutrients. These fungi can significantly influence the productivity and yield of crops; therefore, they can be used as natural promoters of PP without negative impact on the environment. Thus, the objective of this work was to determine the effect of different land uses used as AMF inoculum on PP in trap plant bioassays with alfalfa and sorghum, two predominant crops in the region. The results indicated that the highest PP was associated with plants inoculated with soils from uses with low agricultural activity. The greater agricultural disturbance negatively influences the diversity and development of the AMF and therefore, the less disturbed agroecosystems present a greater diversity of AMF that favor the PP of the crop. The plants that grew in contact with a greater diversity of AMF could establish AM with different glomalean fungal species that could contribute in a complementary ecosystem functions to their benefit and growth.
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