Ancient wheats (Triticum aestivum) variety trials under organic management from 2018 to 2023

Summary

This database originates from field trials conducted between 2017 and 2023 by CREABIO at the La Hourre experimental site (southwestern France) and was compiled by ITAB. The objective of these trials was to assess the agronomic performance of soft wheat (Triticum aestivum) landraces and their response to fertilization under organic management. A total of 20 landraces were evaluated, with a modern commercial cultivar included as a reference. Fertilization was applied at 5 levels, ranging from 0 to 100 units of nitrogen per hectare. The trials were implemented using a split-plot design with 3 replicates.
The database includes information on:
- Field operations: sowing, fertilization, weeding, and harvesting
- Yield performance: grain yield, protein content, and specific weight
- Yield components: plants density (plants/m²), ears density (ears/m²), grains density (grains/m ²) and ITCF lodging score
- Growth monitoring: early and late growth habit, vegetative and reproductive phase vigour and height at maturity
- Disease susceptibility to several pathogens: Zymoseptoria tritici (Mycosphaerella graminicola), Puccinia striiformis (P. glumarum), and Puccinia recondita.
In addition, the database includes daily meteorological data (minimum, maximum, mean temperature and precipitation) recorded at the on-site weather station throughout the trial period, along with several soil descriptors.
This dataset is part of the database compiled as an outcome of Work Area 1 in project OrganicYieldsUP. Variable definitions can be found here: https://doi.org/10.5281/zenodo.15276082
ID abbreviations:
AW: Ancient wheat
FERT-N: nitrogen fertilization
CW: common wheat
xxU: nitrogen fertilization units
Example in « FERT-N_83U » 83U correspond to 83 nitrogen units
Publications based on this dataset (Frensh):
– Retour sur 5 ans de travaux sur les blés population (https://docs.bio-occitanie.org/wp-content/uploads/2023/11/Bilan_2017-2022_BLE_POP_v2.pdf)
– Evaluation variétale de blés anciens - Essai 2018-2019
– Evaluation de populations de blés anciens - Essai 2019-2020
– Evaluation de populations de blés anciens - Synthèse de quatre années d’expérimentations (2017-2021)
– Synthèse résultats campagne 2021-2022 - Blés tendres anciens
– Evaluation de populations de blés anciens- Synthèse de cinq années d’expérimentations (2017-2021 et 2023)