Inoculation with arbuscular micorrizhal fungi and organic compost from cocoa shell positively influence the growth and mineral nutrition of soursop plants (Annona muricata l.)

Abstract

The aim of this study was to evaluate the effect of arbuscular mycorrhizal fungi inoculation (AMF - Acaulospora scrobiculata, Acaulospora colombiana and the mixture of these inocula) and doses of organic compost obtained from cocoa shell (0, 5, 10, 20 and 30 g dm-3) on “Morada” soursop seedlings. The experimental design was a randomized block with 4 blocks in a 5 x 4 factorial scheme (AMF x organic compost). After 120 days of growth, it was observed that AMF inoculation increased height, stem diameter and shoot, root and total dry biomass. Organic compost stimulated mycorrhizal colonization and the number of spores with the addition up to 10 g dm-3. Mycorrhizal inoculation promoted increases of P content in soursop leaves. Control plants did not show adequate response to doses of the organic compost applied and it was concluded that AMF inoculation combined with organic compost increased the growth and nutrition of soursop plants.

Arbuscular mycorrhizae in two national cocoa production systems (organic and chemical fertilization) in the province of Los Ríos, Ecuador

“…One of the promising methods is the promotion of the use of mycelial microorganisms such as mycorrhizae that allow obtaining vigorous plants resistant to various soil pathogens (Djenatou et al, 2020). The use of arbuscular mycorrhizal fungi (AMF) is considered one of the effective organic ways to increase crop productivity (Koda et al, 2018), therefore understanding the composition of mycorrhizal communities in tropical areas becomes especially relevant since crop productivity in tropical soils typically of low fertility, manage to improve with the use of these fungi increasing height, stem diameter and aerial biomass (Gomes et al, 2018).…”

Reduced nitrogen and phosphorus fertilization combined with mycorrhizal inoculation enhance potato yield and soil mineral fertility

“…Among these practices, biofertilization with arbuscular mycorrhizal fungi (AMF) can present a promising solution. In fact, mycorrhizal inoculation had taken the intention of scientists (Adesemoye and Kloepper, 2009) for its role in increasing plant growth and mineral uptake, especially phosphorus, thanks to the extra-radical fungal hyphae (Nurbaity, 2014;Smith and Read, 2008), enhancing soil quality (Junior et al 2018) and improving plant tolerance to Fusarium, Verticillium and Bacterial wilts (Boutaj et al 2022). Few studies (Hijri, 2006;Douds et al 2007) have shown the efficiency of arbuscular mycorrhizal fungi (AMF) inoculation for potato crop.…”