Tajima Ryosuke
Field Science Center, Graduate School of Agricultural Science, Tohoku University, Osaki, Miyagi 989-6711, Japan.
Breed Sci. 2021 Feb;71(1):13-19. doi: 10.1270/jsbbs.20095. Epub 2021 Jan 15.
Resource acquisition, one of the major functions of roots, can contribute to crop growth and mitigating environmental impacts. The spatio-temporal distribution of roots in the soil in relation to the dynamics of the soil resources is critical in resource acquisition. Root distribution is determined by root system development. The root system consists of many individual roots of different types and ages. Each individual root has specific development, resource acquisition, and transport traits, which change with root growth. The integration of individual root traits in the root system could exhibit crop performance in the various environments via root distribution in the soil. However, the relationship between individual root traits and the pattern of root distribution is complicated. To understand this complicated relationship, we need to evaluate enormous numbers of individual root traits and understand the relationship between individual root development and root distribution as well as the integrated functions of individual root traits along with dynamics of resources in the soil.
根系的主要功能之一是资源获取，这有助于作物生长并减轻环境影响。根系在土壤中的时空分布与土壤资源动态相关，对资源获取至关重要。根系分布由根系发育决定。根系由许多不同类型和年龄的单根组成。每一条单根都有特定的发育、资源获取和运输特性，这些特性会随根系生长而变化。根系中单个根的特性整合，可通过土壤中的根系分布展现作物在不同环境中的表现。然而，单根特性与根系分布模式之间的关系很复杂。为理解这种复杂关系，我们需要评估大量单根特性，了解单根发育与根系分布之间的关系，以及单根特性随土壤资源动态变化的综合功能。
