Summary
This 2024 field study investigated how grafted scion variety affects apple root physiology, soil nutrient cycling capacity, and the associated root and rhizosphere microbiomes. By examining carbon and nitrogen metabolism alongside microbial community structure, the research contributes to understanding the physiological mechanisms through which scion selection influences soil biological processes in apple cultivation. The findings suggest scion genotype plays a material role in shaping belowground plant–soil–microbe interactions.
Regional applicability
Apple production in the UK typically relies on grafted trees; findings on scion effects on root metabolism and soil microbiomes could inform cultivar selection for soil health and sustainability in UK orchards. However, climate, soil type, and agronomic practices differ substantially between China and the UK, potentially limiting direct transferability of specific microbial or metabolic outcomes.
Key measures
Root biomass and architecture; soil carbon and nitrogen cycling enzyme activities; 16S rRNA and ITS gene sequencing for bacterial and fungal communities; microbial diversity indices; metabolite profiling in roots and rhizosphere
Outcomes reported
The study examined how different grafted scion varieties influence root growth, carbon and nitrogen metabolism, and microbial community composition in apple roots and associated rhizosphere soil. Key measurements included root morphology, metabolic enzyme activities, and microbial taxonomic composition and diversity.
Topic tags
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