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Updated: Mar 24, 2026

The Use of High-resolution Infrared Thermography HRIT for the Study of Ice Nucleation and Ice Propagation in Plants
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Root phenology in a changing climate.

Laura Radville1, M Luke McCormack2, Eric Post3

  • 1Department of Ecosystem Science and Management and the Ecology Graduate Program, The Pennsylvania State University, University Park, PA 16802, USA.

Journal of Experimental Botany
|March 3, 2016
PubMed
Summary
This summary is machine-generated.

Understanding plant root phenology is crucial for predicting climate change impacts. Research shows root growth occurs year-round, unlike shoots, but quantitative studies are scarce, hindering our ecological predictions.

Keywords:
Belowgroundendogenousexogenousphenologyroot dynamicsroot growth.

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Area of Science:

  • Ecology
  • Plant Science
  • Climate Change Biology

Background:

  • Plant phenology, particularly aboveground, is a key indicator of climate change impacts on ecosystems.
  • Belowground root phenology is poorly understood, representing a significant knowledge gap in predicting climate change effects on plant performance and ecosystem processes.

Purpose of the Study:

  • To review existing literature on root phenology and identify research needs.
  • To highlight the importance of quantitative analysis and direct observation for understanding root phenological responses to environmental changes.

Main Methods:

  • Literature review of studies investigating plant root phenology.
  • Analysis of the quantitative approaches and observational methods used in previous research.

Main Results:

  • A significant lack of quantitative studies (29%) limits the interpretation of root phenology across diverse research.
  • Root initiation and cessation appear more sensitive to soil temperature and carbon availability, while peak root growth involves resource allocation trade-offs.
  • Contrary to shoot dormancy, 89% of studies found evidence of root growth during winter months.

Conclusions:

  • Future research must prioritize quantitative methods and direct observation (e.g., using rhizotrons) to accurately capture root phenology, especially winter and early-season growth.
  • Understanding root phenology is essential for accurate ecological modeling of climate change impacts on net primary production and ecosystem functions.