Matching of Nitrogen Enhancement and Photosynthetic Efficiency by Arbuscular Mycorrhiza in Maize (<i>Zea mays</i> L.) in Relation to Organic Fertilizer Type
2022
Suravoot Yooyongwech | Waraporn Threeprom | Rujira Tisarum | Thapanee Samphumphuang | Daonapa Chungloo | Suriyan Cha-um
In the present study, <i>Funneliformis mosseae</i> (FM), <i>Claroideoglomus etunicatum</i> (CE), and <i>Acaulospora foveata</i> (AF) were inoculated to hybrid maize (<i>Zea mays</i> L. cv. CP888<sup>®</sup>). Upregulation of nitrogen levels were dependent on the type of mycorrhiza (AMF). Photosynthetic efficiency (F<sub>v</sub>/F<sub>m</sub>) and water content in FM- and AF-inoculated plants were elevated, resulting in promotion of leaf area and shoot biomass. N content in the shoot and root tissues of the FM-inoculated plants increased by 21% and 30% over the control. A positive correlation between biochemical, physiological, and morphological parameters using Pearson’s coefficient was demonstrated. A decline in lipid peroxidation was noticed in the FM-inoculated plants. In addition, we investigated the potential of N fertilizer application in combination with FM inoculation in maize plants. The FM-inoculated plants with organic O_LT, a chicken manure fertilizer, increased N content in the host shoots by 73% over the control, leading to improved F<sub>v</sub>/F<sub>m</sub> as a physiological adaptation strategy. The FM and the O_LT on the regulation of the N enhancement and photosynthetic efficiency of the hybrid maize should further be validated in field trials in different environments for sustainability.
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