Architectural Response of Wheat Cultivars to Row Spacing Reveals Altered Perception of Plant Density.

ABSTRACT: Achieving novel improvements in crop management may require changing interrow distance in cultivated fields. Such changes would benefit from a better understanding of plant responses to the spatial heterogeneity in their environment. Our work investigates the architectural plasticity of wheat plants in response to increasing row spacing and evaluates the hypothesis of a foraging behavior in response to neighboring plants. A field experiment was conducted with five commercial winter wheat cultivars possessing unique architectures, grown under narrow (NI, 17.5 cm) or wide interrows (WI, 35 cm) at the same population density (170 seeds/m²). We characterized the development (leaf emergence, tillering), the morphology (dimension of organs, leaf area index), and the geometry (ground c

SUBMITTER: Abichou M 

PROVIDER: S-EPMC6692534 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature