Agricultural and Biological Sciences
5 years ago

High salt levels hinder barley growth and photosynthesis, impacting crop yield.

Photosynthetic responses of barley (Hordeum vulgare) to salt stress
Anne E. Taylor

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Barley plants can survive in salty soil by tolerating the salt instead of avoiding it. High salt levels affect photosynthesis in barley leaves, reducing oxygen production and changing how light energy is used. The salt also delays the start of photosynthesis and decreases its efficiency. The main issue is the toxic effects of salt ions, which disrupt the balance of energy between different parts of the photosynthesis process. This leads to poor growth and lower oxygen production in the plants.