SIGN UP LOG IN

The largest wine encyclopedia in the world

23.030 Keywords • 48.228 Synonyms • 5.303 Translations • 28.336 Pronunciations • 154.274 Cross-references

0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

heat stress

heat stress (GB)

For all organisms, heat means a state of stress and therefore also for plants like that Weinrteb, The rising temperatures in the course of climate change lead to lower productivity of important crops. Heat imbalances and affects cell metabolism photosynthesis, which is almost set at over 40 ° Celsius. Extreme heat can even be fatal to plants. For these reasons, plants have developed a variety of reaction mechanisms. Like humans, plants also try to protect themselves from heat through evaporation, which leads to a relatively quick cooling. This as evaporation designated process is through the stomata of the leaves controlled.

Heat stress - grapes and leaves

In connection with lower humidity, dry wind and strong sunshine are additional factors water stress, With increasing temperatures, the respiration, where the malic acid is decomposed. The result are low color and low acidity as well insipid tasting wines. The new breed heat tolerant varieties gains in importance in the context of these developments. Foam cress (Arabidopsis) is often used to study the heat reactions of plants. The plant's genome is comparatively simple and has already been fully decoded. See also under drought,

Images: By Uschi Dugulin from Pixabay

World's largest wine knowledge database, made with by our author Norbert Tischelmayer.

About the Glossary

Calendar EVENTS NEAR YOU To Online-Events

Privacy Notice: ×

Cookies facilitate the provision of our services. By using our services, you agree that we use cookies.