{
  "abstract": "Better understanding grain yield limitations in perennial grain crops is a central issue for improving their performances. In this context, reproductive allometry - the relationship between biomass and seed production - can be highly informative. For perennial species, it is necessary to assess reproductive allometry throughout the plant's lifespan by considering cumulative growth and reproduction. Drawing on a worldwide dataset, we present the first analysis of reproductive allometry for intermediate wheatgrass (Thinopyrum intermedium), the most extensively studied temperate perennial grain crop candidate. We found a significant overall allometric relationship between cumulative grain yield and cumulative biomass with a scaling exponent of 0.69 (R² = 0.67). We then characterized the observed range of reproductive effort (harvest index) and estimated its upper boundary conditions. Together, these allow us to use this allometric framework as a diagnostic tool distinguishing yield variation driven by resource acquisition (biomass production) from that driven by allocation to reproduction. We propose that breeding and management strategies to improve grain yield in intermediate wheatgrass should therefore focus on increasing and stabilizing 2 reproductive effort across a range of stand biomass, developing system design and architectural ideotypes that delay competition within the crop population or reduce plastic responses to competition. Our findings are based on observational field data spanning a large range of environmental conditions; extrapolation beyond this range should be done with caution. Finally, beyond the specific findings presented here, this work moves past speciesspecific and annual perspectives by establishing a generalizable framework for perennial grain research and pluriannual assessment of cropping systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 14,
  "authors": [
    {
      "name": "Olivier Duchene"
    },
    {
      "name": "Jacob Weiner"
    },
    {
      "name": "Christelle Ginot"
    },
    {
      "name": "Pierre Aubry"
    },
    {
      "name": "Laura Fagnant"
    },
    {
      "name": "Christophe David"
    },
    {
      "name": "Florian Celette"
    },
    {
      "name": "Jacob Jungers"
    },
    {
      "name": "Priscila Pinto"
    },
    {
      "name": "Valentin Picasso"
    },
    {
      "name": "Douglas Cattani"
    },
    {
      "name": "Roberta Bianchin Rebesquini"
    },
    {
      "name": "Andrea Basche"
    },
    {
      "name": "Benjamin Dumont"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/72cjdg9nxj1kj.bib",
  "cited_by": 0,
  "doi": "10.1016/j.fcr.2026.110788",
  "fulltext_url": null,
  "id": "72cjdg9nxj1kj",
  "issns": [
    "0378-4290"
  ],
  "landing_url": "https://hal.science/hal-05847682v1",
  "language": "en",
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdv"
    ],
    [
      "hal",
      "1.sdv.sa"
    ],
    [
      "hal",
      "2.sdv.sa.agro"
    ],
    [
      "openalex",
      "1102|Agricultural Productivity and Crop Improvement"
    ]
  ],
  "openalex": "W7225002096",
  "pdf_url": "https://hal.science/hal-05847682/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/72cjdg9nxj1kj.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:20:44Z",
      "native_id": "hal-05847682",
      "source": "hal",
      "url": "https://hal.science/hal-05847682v1"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "openalex:1102|Agricultural Productivity and Crop Improvement",
      "subfield": "plant-biology"
    }
  ],
  "title": "Reproductive allometry of an emerging perennial grain grass",
  "title_text": "Reproductive allometry of an emerging perennial grain grass",
  "type": "peer-reviewed",
  "updated_at": "2026-11-04T12:20:47Z",
  "url": "https://research.draconitic.com/paper/72cjdg9nxj1kj",
  "venue": "Field Crops Research",
  "versions": []
}