Accessing the Effect of Phyllotaxy and Planting Density on Light Use Efficiency in Field-Grown Maize using 3D Reconstructions

• URL: http://arxiv.org/abs/2503.06887v1
• Date: Mon, 10 Mar 2025 03:32:44 GMT
• Title: Accessing the Effect of Phyllotaxy and Planting Density on Light Use Efficiency in Field-Grown Maize using 3D Reconstructions
• Authors: Nasla Saleem, Talukder Zaki Jubery, Aditya Balu, Yan Zhou, Yawei Li, Patrick S. Schnable, Adarsh Krishnamurthy, Baskar Ganapathysubramanian,
• Abstract summary: This study integrates realistic 3D reconstructions of field-grown maize with photosynthetically active radiation (PAR) modeling.<n>Using this framework, we present detailed analyses of the impact of canopy orientations, plant and row spacings, and planting row directions on PAR interception.
• Score: 16.27322651520103
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: High-density planting is a widely adopted strategy to enhance maize productivity, yet it introduces challenges such as increased interplant competition and shading, which can limit light capture and overall yield potential. In response, some maize plants naturally reorient their canopies to optimize light capture, a process known as canopy reorientation. Understanding this adaptive response and its impact on light capture is crucial for maximizing agricultural yield potential. This study introduces an end-to-end framework that integrates realistic 3D reconstructions of field-grown maize with photosynthetically active radiation (PAR) modeling to assess the effects of phyllotaxy and planting density on light interception. In particular, using 3D point clouds derived from field data, virtual fields for a diverse set of maize genotypes were constructed and validated against field PAR measurements. Using this framework, we present detailed analyses of the impact of canopy orientations, plant and row spacings, and planting row directions on PAR interception throughout a typical growing season. Our findings highlight significant variations in light interception efficiency across different planting densities and canopy orientations. By elucidating the relationship between canopy architecture and light capture, this study offers valuable guidance for optimizing maize breeding and cultivation strategies across diverse agricultural settings.

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