Applied Physiology:

Blueberry physiology: understanding the plant to compete in demanding markets

Within the framework of the XL International Blueberry Seminar Chile 2026, academic Amaya Atucha and Professor Gerardo Núñez will focus on the physiological processes that today directly affect the productivity, quality and competitiveness of blueberries.

In an industry of blueberry In an increasingly demanding market where quality at the destination defines commercial success, plant physiology is beginning to play a central role in decision-making. This will be the basis of the presentations by Dr. Amaya Atucha, professor in the Department of Plant Sciences and Agroecosystems at the University of Wisconsin-Madison, and Dr. Gerardo Núñez, Ph.D. in Horticultural Sciences from the University of Florida, on April 16.

Their presentations, entitled “Physiology of heat stress: adaptation mechanisms and management strategies in Vaccinium crops” and “Physiological bases of blueberry "Modern: Environment-Metabolism-Quality interaction in high-demand systems," respectively, address one of the most relevant changes in the productive approach to the crop: the shift from a management based on practices to a model more focused on understanding the processes.

From handling to understanding the plant

For years, blueberry production has relied on the application of relatively standardized agronomic strategies. However, advances in genetics, expansion into new production areas, and pressure from more distant markets have revealed the limitations of this approach.

Today, the challenge is not only managing the crop, but understanding how the plant responds. In this context, the interaction between environment and metabolism becomes critical. Variables such as temperature, radiation, water availability, and heat stress not only affect growth, but also modulate metabolic processes that determine key fruit attributes, such as firmness, flavor, and post-harvest life.

Quality is defined before the harvest

One of the most relevant aspects of this perspective is that the quality of blueberry It is not defined at harvest or post-harvest, but much earlier, in the way the plant interacts with its environment. This implies understanding that every agronomic decision—in irrigation, nutrition, pruning, or yield—has a physiological impact that is later expressed in commercial quality.

In high-demand systems, where fruit must travel long distances and maintain its condition for weeks, this relationship ceases to be a theoretical consideration and becomes a critical factor of competitiveness.

Towards more precise production

The presentations by both experts are part of a broader change within the industry: the transition towards more precise production, where physiology, monitoring and data interpretation allow for anticipating plant responses.

For years the blueberry It has often been approached from a recipe-like perspective: more irrigation, more calcium, more biostimulants, more interventions. Today, however, concepts such as metabolism, energy balance, and stress are beginning to be incorporated more strongly into the operational language of the producer and the technical advisor.

Beyond the technique

The relevance of these talks lies not only in their scientific content but also in what they represent for the sector. In an industry where global competition is intensifying and margins are shrinking, the difference no longer lies solely in genetics or logistics, but also in the ability to understand the entire system. And that system begins with the plant, because the modern blueberry is a highly sensitive physiological system where environment, management, and metabolism constantly interact.

In this context, the presentations by Amaya Atucha and Gerardo Núñez highlight an increasingly visible need for the industry: to advance not only in technology, but also in physiological understanding. This transition, from doing to understanding, is crucial to the future competitiveness of modern blueberries.

Source
Blueberries Consulting

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