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... BACKGROUND AND AIMS: Legume-cereal mixtures are often characterized by higher biomass and grain yields compared to their sole crop equivalents due to complementary resource use. Little is known about the contribution of the root system to this overyielding potential and the related cultivar differences. This study investigated pure stands and mixtures of eight winter faba bean (Vicia faba L.) geno ...
... BACKGROUND AND AIMS: Endophytic fungi colonization is an eco-friendly strategy to respond to environmental stresses and confer tolerance to the host plant. Here, the responses of wheat plant inoculated with an indole acetic acid (IAA) -producing endophytic fungus to drought stress and water recovery were evaluated. METHODS: The inoculation of wheat plants with Alternaria alternata (LQ1230) was con ...
... AIMS: Low-vigour scion cultivars and dwarfing rootstocks are a significant contributing factor to the success of modern temperate orchard systems. Planting density and canopy efficiency are currently limited in macadamia by a lack of low-vigour cultivars and rootstocks. The relationships between xylem vessel diameter, hydraulic conductivity and vigour are implicated in dwarf cultivars and low-vigo ...
... AIMS: Antimony (Sb) is locally found at potentially toxic concentrations in mineralized soils, usually together with arsenic (As). However, local adaptation of plant populations to Sb toxicity has never been shown thus far. Here we compared Sb tolerance and accumulation between a non-metallicolous (NM) population of Salvia spinosa, and a con-specific metallicolous (M) population from a strongly Sb ...
... BACKGROUND AND AIMS: Arbuscular mycorrhizal fungi (AMF) play important roles in plant community structure and ecosystem functioning. The allelopathic disruption of arbuscular mycorrhizal mutualism is a potentially powerful mechanism by which non-native species can negatively impact native plant diversity. However, there is limited understanding of this mechanism on woody species in forest ecosyste ...
... AIMS: A possible approach to restore drylands is to recover biocrusts by inoculating cyanobacteria. Many studies have demonstrated the ability of cyanobacteria to successfully colonize soil and improve its functions. However, most studies have focused on the abiotic factors influencing the inoculation success, overlooking biotic factors. We examined the influence of the soil indigenous community o ...
... BACKGROUND AND AIMS: Water and nutrient management influences the allocation and stabilisation of newly assimilated carbon (C) in paddy soils. This study aimed to determine the belowground allocation of C assimilated by rice and the subsequent C stabilisation in soil aggregates and as mineral-organic associates depending on combined alternate wetting and drying (AWD) versus continuous flooding (CF ...
... AIMS: Previous studies suggest that organic carbon (C) and nitrogen (N) can stimulate soil nitrification, but whether autotrophic or heterotrophic nitrification is stimulated and who are active nitrifiers for the nitrification activity is still in debate. We elucidated which nitrification dominated and the active nitrifiers during the decomposition of rice callus. METHODS: ¹⁵N-labeled callus and a ...
... AIMS: To screen plant-associated Burkholderia strains for plant probiotic traits including allelochemical metabolism and understand their role on rice allelopathy using a bacteriostatic-dose of antibiotic. METHODS: Burkholderia sp. LS-044, CC-Al74 and CC-3XP9 were screened for plant probiotic traits. Rice (Oryza sativa ssp. japonica cv. Tainung 71) root endophytic isolate LS-044 was subjected to m ...
... BACKGROUND AND AIM: Hydraulically lifted water can be redistributed to a neighbouring plant, a process referred to as “bioirrigation”. Facilitation of bioirrigation by beneficial microbes such as arbuscular mycorrhizal (AM) fungi that form a common mycorrhizal network (CMN) between neighbouring plants has often been suggested but is not yet well explored. In this study, we tested if the presence o ...
... BACKGROUND AND AIMS: Microbial properties are often used to assess the recovery of soil health during phytoremediation. A field survey was conducted to test the effects of different plant metallophytes (excluder and hyperaccumulator) on soil microbial characteristics. METHODS: Microbial properties in the rhizosphere of four metallophytes (Sedum alfredii, Rubus hunanensis, Lysimachia christinae and ...
... AIMS: To investigate how different tree species affect the composition of SOM and its mineralization in boreal forest ecosystems. METHODS: We used pyrolysis GC–MS for molecular-level characterization of the SOM formed under five common boreal tree species at a replicated field experiment ~50years after plantation. We incubated soil samples at 4, 9, 14 and 19 °C and measured inherent CO₂ production ...
Bradyrhizobium; Phaseolus vulgaris; Vigna radiata; farmers; fertilizer application; field experimentation; green beans; mung beans; nitrogen; nitrogen fixation; phosphorus; phosphorus fertilizers; small farms; soil; soil fertility; stable isotopes
Abstract:
... AIMS: To investigate factors limiting biological nitrogen fixation (BNF) by grain legumes in the Ethiopian Rift Valley in soils with different input legacies. METHODS: Two field experiments were set up, at a high-input (Hawassa) and a low-input (Lokabaya) site, comparing each two varieties of haricot bean (Phaseolus vulgaris var. Hawassa dume and Awash1) and mung bean (Vigna radiata var. N26 and S ...
Maria Elisa Vicentini; Carla Regina Pinotti; Welinton Yoshio Hirai; Mário Luiz Teixeira de Moraes; Rafael Montanari; Marcelo Carvalho Minhoto Teixeira Filho; Débora Marcondes Bastos Pereira Milori; Newton La Scala Júnior; Alan Rodrigo Panosso
... AIMS: To characterise the temporal variability in soil CO₂ emissions (FCO₂), soil O₂ influx (FO₂), soil water content (SWC), and soil temperature (Ts) and their relations in long-term reforested areas (30 years of conversion) in an Oxisol, Cerrado biome, Brazil. Methods The following land-use changes (Luces) were evaluated: pine (PI), eucalyptus (EU), and native species (NS) reforested areas. The ...
... BACKGROUND AND AIMS: Cadmium (Cd) is a ubiquitous environmental pollutant, and rice (Oryza sativa L.) is the main staple food in China. Water regimes are promising, controllable, and environment-friendly agricultural measures for remediation Cd contaminated soil. The optimum water regime for ensuring high rice yield with low Cd contents in brown rice was investigated. METHODS: A pot experiment was ...
... AIMS: The mean biomass ATP concentration in aerobic soils is around 10–11 μmol ATP g⁻¹ biomass C, within a fairly narrow range. It is much lower in short-term incubated laboratory waterlogged soils. However, the biomass ATP concentration in waterlogged paddy soils under field conditions remains unknown. This is investigated. METHODS: Soil microbial biomass C (biomass C), ATP, biomass ATP and heavy ...
... AIMS: Global climate change is characterized by enhanced atmospheric carbon dioxide concentration ([CO₂]) and temperature, with unknown consequences for soil nematode communities. Soil nematode in response to elevated [CO₂], warming and their interaction in paddy field remain largely unknown. Here we aimed to understand how factorial combinations of elevated [CO₂] and canopy warming affect soil ne ...
... BACKGROUND AND AIMS: Root-rot disease, a catastrophic disease of Panax quinquefolium L. causes yield reduction and serious economic losses. However, knowledge of the relationship between rhizosphere microbial community and root-rot disease is limited. This study is aim to test whether the bacteria and fungi community differed between the soil attached to healthy and rotten roots of American ginsen ...
... AIMS: The selection and breeding of low grain-cadmium (Cd)-accumulating rices is a promising approach for reducing the Cd concentration in grains. A cadmium-safe rice line designated D62B (Oryza Sative L.) accumulated a low Cd concentration in brown rice for safe consumption (< 0.2 mg kg⁻¹). D62B was a great potential breeding material with a weaker translocation capacity of Cd to shoot compared w ...
... BACKGROUND AND AIMS: Variations in plant nitrogen (N) and phosphorus (P) concentrations and ratios have great implications for primary productivity and nutrient cycling. Here, we reported their changes at functional group and community levels along an aridity gradient. METHODS: We carried out a field investigation and set up 26 sampling sites along a transect in the drylands of northern China to e ...