Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Effects of agronomic management and climate on leaf phenolic profiles, disease severity, and grain yield in organic and conventional wheat production systems

Rempelos L, Almuayrifi AM, Barański M, Tetard-Jones C, Eyre M, Shotton P, et al

J Agric Food Chem · 2018.0

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Summary

This field-based study investigates how organic and conventional agronomic management, in combination with climatic variation, shapes leaf phenolic chemistry, foliar disease pressure, and productivity in wheat. The paper likely demonstrates that management system and seasonal climate interact to influence plant defence-related secondary metabolite profiles, with organic systems potentially showing distinct phenolic responses associated with greater reliance on induced plant immunity. Published in the Journal of Agricultural and Food Chemistry, the work contributes to understanding the agronomic and environmental drivers of secondary metabolite accumulation in cereals, with implications for both crop protection and grain quality.

UK applicability

The study was almost certainly conducted in the UK, given the research group affiliation (Newcastle University) and the long-term farming systems trials context associated with these authors; findings are therefore directly applicable to UK arable conditions, informing both organic certification practice and conventional wheat agronomy under variable British climate.

Key measures

Leaf phenolic profiles (LC-MS quantification); disease severity scores; grain yield (t/ha); climate variables (temperature, rainfall)

Outcomes reported

The study measured leaf phenolic compound profiles, foliar disease severity, and grain yield in wheat grown under organic and conventional management across varying climatic conditions. It examined how agronomic inputs and seasonal climate interact to influence plant secondary metabolite accumulation and crop health outcomes.

Theme
Farming systems, soils & land use
Subject
Arable crop quality & plant health
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
UK
System type
Arable cereals
DOI
10.1021/acs.jafc.8b02626
Catalogue ID
WP0105

Topic tags

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