Arbuscular mycorrhizae alleviate water deficit in Dipteryx alata Vogel: seedling quality and resilience

Dipteryx alata Vogel (Fabaceae) is a fruit tree species native to the Cerrado with ecological and economic potential. However, water deficit can be limiting factor initial growth of this species, requiring knowledge on technologies that alleviate stressful effect. We hypothesized inoculation arbuscular mycorrhizae fungi contributes stress mitigation during after deficit. D. seedlings were subjected two regimes (control: irrigated daily; deficit: irrigation suspension); associated mycorrhizal (AMF): AM- = without inoculation; AM+ Rhizophagus clarum; three evaluation periods: T0 - time zero; F0 zero photosynthesis (seven days restriction); REC recovery (100 days). Water impaired relations, decreasing quality seedlings. showed higher relative content (RWC), leaf area ratio, chlorophyll index, Rubisco carboxylation capacity (A/Ci), which helped in photosynthetic metabolism. Inoculation R. clarum alleviated impact use efficiency, potential, RWC, A/Ci REC. AMF promising management technique production for increasing seedling resilience