Abstract
Maintaining a reliable and sustainable agricultural production system has become one of the major concerns of producers in arid and semi-arid regions. Simplifying farming techniques and practicing Direct Seedling (DS) could contribute to insure the sustainability of agriculture, preserving the natural resources and the environment. Direct Seedling based on limiting soil plowing has a potential number of benefits, including reduced production costs and soil erosion. Associated with the organic mulch, this technique improves the soil fertility and favors the establishment of root symbioses. Given the importance of the no-till farming techniques, the present research work aims to compare the effects of DS and those of Conventional Seedling (CS) on the evolution of arbuscular mycorrhizal symbiosis in durum wheat (Triticum durum Desf) roots, cultivated in the field for five years. Soil and root samples were collected during three different cropping stages at two different treatments. The results of Arbuscular Mycorrhizal Fungi (AMF) root colonization kinetics have shown an increase in the percentage of arbuscules and a decrease in vesicles for plants sampled from a DS field compared to those from CS. Effects of the DS on the mycorrhizal parameters appears clearly in the fourth year of the experiment and continues in the fifth year, with an arbuscule percentage reaching 80% in a DS field and not exceeding 21% in a CS field. Soil phospholipid fatty acids (PLFA) C16:1ω5 (biomarker of AMF) and C18:2ω 6, 9 (biomarker of saprophytic/ectomycorrhizal fungi) demonstrate that no-till practice improves AMF biomass and saprotrophic/ectomycorrhizal fungal biomasses by 52 and 159%, respectively, in comparison with those found in a CS field. In both treatments, no-till farming and CS plots, the AMF biomass is higher than saprotrophic/ectomycorrhizal biomasses. The natural biodiversity of AMF is also enhanced in a no-till field. In addition, an increase in the relative abundance of six families of Glomeromycota (Gigasporaceae, Diversisporaceae, Scutellosporaceae, Entrophosporaceae, Acaulosporaceae, Dentiscutataceae) was observed. To summarize, the present study highlights the importance of no-till practice as an approach to restore the microbiome in soils disturbed by tillage in semi-arid regions.
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Claims 8
Claim · model-written summary
Direct Seedling increased arbuscules in wheat roots compared with Conventional Seedling.
- Taxon
- Durum Wheat
Triticum turgidum subsp. durumt0 - Treatment
- DS fielde0
- Outcome
- percentage of arbusculese0
- Direction
- increasee0
- Comparator
- CSe0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in the percentage of arbuscules and a decrease in vesicles for plants sampled from a DS field compared to those from CS”
t0“Durum Wheat”
Claim · model-written summary
Direct Seedling decreased wheat root vesicles compared with Conventional Seedling.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- DS fielde0
- Outcome
- vesiclese0
- Direction
- decreasee0
- Comparator
- CSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in the percentage of arbuscules and a decrease in vesicles for plants sampled from a DS field compared to those from CS”
t0“Durum Wheat”
Claim · model-written summary
In year four and five, arbuscules reached 80% in Direct Seedling versus at most 21% in Conventional Seedling.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- DS fielde0
- Outcome
- arbuscule percentagee0
- Direction
- reachinge0
- Value
- 80%e0
- Qualifier
- not exceeding 21%e0
- Comparator
- CS fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of the DS on the mycorrhizal parameters appears clearly in the fourth year of the experiment and continues in the fifth year, with an arbuscule percentage reaching 80% in a DS field and not exceeding 21% in a CS field”
t0“Durum Wheat”
Claim · model-written summary
No-till increased AMF biomass by 52% relative to Conventional Seedling.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- no-till practicee0
- Outcome
- AMF biomasse0
- Direction
- improvese0
- Value
- 52e0
- Comparator
- CS fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no-till practice improves AMF biomass and saprotrophic/ectomycorrhizal fungal biomasses by 52 and 159%, respectively, in comparison with those found in a CS field”
t0“Durum Wheat”
Claim · model-written summary
No-till increased saprotrophic or ectomycorrhizal fungal biomass by 159% relative to Conventional Seedling.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- no-till practicee0
- Outcome
- saprotrophic/ectomycorrhizal fungal biomassese0
- Direction
- improvese0
- Value
- 159%e0
- Comparator
- CS fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no-till practice improves AMF biomass and saprotrophic/ectomycorrhizal fungal biomasses by 52 and 159%, respectively, in comparison with those found in a CS field”
t0“Durum Wheat”
Claim · model-written summary
AMF biomass exceeded saprotrophic or ectomycorrhizal biomass under both tillage regimes.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Outcome
- AMF biomasse0
- Direction
- highere0
- Comparator
- saprotrophic/ectomycorrhizal biomassese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both treatments, no-till farming and CS plots, the AMF biomass is higher than saprotrophic/ectomycorrhizal biomasses”
t0“Durum Wheat”
Claim · model-written summary
No-till enhanced natural AMF biodiversity.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- no-till fielde0
- Outcome
- biodiversity of AMFe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The natural biodiversity of AMF is also enhanced in a no-till field”
t0“Durum Wheat”
Claim · model-written summary
Relative abundance increased for six Glomeromycota families.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Outcome
- relative abundance of six families of Glomeromycotae0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in the relative abundance of six families of Glomeromycota (Gigasporaceae, Diversisporaceae, Scutellosporaceae, Entrophosporaceae, Acaulosporaceae, Dentiscutataceae) was observed”
t0“Durum Wheat”
The same questions in other papers
tillage · growth · Triticum turgidum (rivet wheat)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.