Arbuscular mycorrhizal inoculation increases biomass of Euterpe edulis and Archontophoenix alexandrae after two years under field conditions

Abstract

SUMMARYInoculation with arbuscular mycorrhizal fungi (AMF) of tree seedlings in the nursery is a biotechnological strategy to improve growth, survival after transplanting, biomass production and to reduce the use of fertilizers. Archontophoenix alexandrae and Euterpe edulis are palm species used in southern Brazil to produce the palm heart, the latter being included in the list of threatened species due to the overexploitation of its native population. The purpose of this paper was to evaluate the effect of mycorrhizal inoculation on growth and physiological parameters of A. alexandrae and E. edulis. After germination, the seedlings were inoculated (AMF) or not (CTL) with AMF in the treatments. Values of chlorophyll content, biomass and shoot phosphorus were not statistically different between the AMF and CTL treatments, after five months in the greenhouse. Inoculation with AMF significantly increased the levels of starch and soluble carbohydrates in shoots and roots of both species. Under field conditions, AMF had no effect on stem diameter and height after 12 and 24 months, but total plant biomass and leaf, stem and root biomass were greater in AMF than in CTL plants. The data indicated that AMF inoculation in the nursery

Influence of arbuscular mycorrhiza on photosynthesis and water status of Populus cathayana Rehder males and females under salt stress

“…When exposed to salt stress, plants inoculated with AM had higher biomass than non-mycorrhizal cuttings, which agreed with the previous studies (Ramos-Zapata et al 2009;Sgrott et al 2012). The positive effects of AMF on males and females biomass were magnified by salt stress, which was consistent with Sheng et al (2009).…”

Effect of maize and peanut crops on Ivory Coast northern soil biological activities and their response to arbuscular mycorrhizal fungi inoculation

“…These results are consistent with those of Morte and Honrubia (2002) who found that the height and dry weight of Phoenix canariens inoculated with Glomus deserticola and G. intraradices were not different from those of uninoculated control. Sgrott et al (2012) also found in their study that AMF had no significant effect on plant height but increased total biomass. In addition, inoculation with Ga decreased nodulation parameters and root dry weight of peanut in comparison to control plants.…”

Effects of arbuscular mycorrhizal fungi on photosynthesis and chlorophyll fluorescence of maize seedlings under salt stress

“…When subjected to salt stress, maize plants showed obvious decrease in both leaf area and biomass, such reduction was possibly related to appearance of osmotic stress and increase on the efficiency for ion transfer (Farooq et al, 2009). Meanwhile, both higher leaf area and biomass were detected in AM plants (Ramos-Zapata et al, 2009;Sgrott et al, 2012), it can be explained that AMF might change biomass allocated to aboveground and belowground (Zhang et al, 2011). And the positive influence may also be a result of the enhancement of ability of nutritive equilibrium, absorbance, metabolism and utilization caused by mycorrhiza (Zandavalli et al, 2004).…”