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Application of Crop Growth Models to Assist Breeding for Intercropping: Opportunities and Challenges

Weih, Martin and Adam, Eveline and Vico, Giulia and Rubiales, Diego (2022). Application of Crop Growth Models to Assist Breeding for Intercropping: Opportunities and Challenges. Frontiers in Plant Science. 13 , 720486
[Research article]

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Abstract

Intercropping of two or more species on the same piece of land can enhance biodiversity and resource use efficiency in agriculture. Traditionally, intercropping systems have been developed and improved by empirical methods within a specific local context. To support the development of promising intercropping systems, the individual species that are part of an intercrop can be subjected to breeding. Breeding for intercropping aims at resource foraging traits of the admixed species to maximize niche complementarity, niche facilitation, and intercrop performance. The breeding process can be facilitated by modeling tools that simulate the outcome of the combination of different species' (or genotypes') traits for growth and yield development, reducing the need of extensive field testing. Here, we revisit the challenges associated with breeding for intercropping, and give an outlook on applying crop growth models to assist breeding for intercropping. We conclude that crop growth models can assist breeding for intercropping, provided that (i) they incorporate the relevant plant features and mechanisms driving interspecific plant-plant interactions; (ii) they are based on model parameters that are closely linked to the traits that breeders would select for; and (iii) model calibration and validation is done with field data measured in intercrops. Minimalist crop growth models are more likely to incorporate the above elements than comprehensive but parameter-intensive crop growth models. Their lower complexity and reduced parameter requirement facilitate the exploration of mechanisms at play and fulfil the model requirements for calibration of the appropriate crop growth models.

Authors/Creators:Weih, Martin and Adam, Eveline and Vico, Giulia and Rubiales, Diego
Title:Application of Crop Growth Models to Assist Breeding for Intercropping: Opportunities and Challenges
Series Name/Journal:Frontiers in Plant Science
Year of publishing :2022
Volume:13
Article number:720486
Number of Pages:6
Publisher:FRONTIERS MEDIA SA
ISSN:1664-462X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Botany
Keywords:APSIM, biodiversity, complementary resource use, plant breeding, process-based models, STICS, mixed cropping
URN:NBN:urn:nbn:se:slu:epsilon-p-116397
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116397
Additional ID:
Type of IDID
DOI10.3389/fpls.2022.720486
Web of Science (WoS)000759903900001
ID Code:27337
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
Deposited By: SLUpub Connector
Deposited On:18 Mar 2022 10:25
Metadata Last Modified:18 Mar 2022 10:31

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