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Light Acquisition

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

Responses to Salt Stress

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

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Related Experiment Video

Updated: May 23, 2026

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Published on: March 28, 2025

Phenotyping for abiotic stress tolerance in maize.

Benhilda Masuka¹, Jose Luis Araus, Biswanath Das

¹International Maize and Wheat Improvement Center, P.O. Box MP 163, Mount Pleasant, Harare, Zimbabwe.

Journal of Integrative Plant Biology

|March 27, 2012

Summary

Developing resilient crops for climate change requires advanced molecular breeding and precise phenotyping. This study outlines field protocols for maize to improve tolerance to combined stresses like drought and low nitrogen.

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Published on: January 3, 2014

Area of Science:

Agricultural Science
Plant Breeding
Climate Change Adaptation

Background:

Climate change necessitates resilient cropping systems capable of withstanding combined abiotic and biotic stresses.
Molecular breeding accelerates crop improvement, but its success hinges on effective phenotyping.
Current phenotyping methods often lack the precision needed to capture complex stress responses.

Purpose of the Study:

To outline field phenotyping protocols for maize.
To enhance the development of germplasm tolerant to multiple stresses, specifically drought and low nitrogen.
To bridge the gap between molecular breeding potential and realized benefits through improved phenotyping.

Main Methods:

Emphasis on reducing experimental site variability and characterizing environmental conditions.
Application of controlled stress treatments (drought, low nitrogen).
Utilizing advanced remote sensing tools for non-destructive measurements (spectral reflectance, infrared thermometry).

Main Results:

Integrative traits (canopy level, over time) are superior to instantaneous measurements for assessing crop performance.
Remote sensing offers new possibilities for growth and water status monitoring.
Key field protocols for maize phenotyping under stress are detailed.

Conclusions:

Accurate and precise phenotyping is crucial for leveraging molecular breeding advancements.
Standardized field protocols are essential for developing climate-resilient crops.
The described methods facilitate the breeding of maize with enhanced tolerance to combined environmental stresses.