Sugar beet crop wilting due to drought
Numéro d’image : 12582274
| A field of sugar beet, Beta vulgaris, in Norfolk, UK, July 2018. The picture shows rows of beet plants wilting on a day when the temperature reached 31 degrees C, in a period when no significant rain had fallen for more than 30 days. The picture shows that the outermost leaves of the plants have lost turgor, their stalks bent towards the ground. Wilting is a natural defence for plants when soil moisture is low; the stomata in the leaves close, and the leaf stalk (petiole) bends downwards. The process often reverses itself at night as temperatures fall. In the case of sugar beet, prolonged heat and drought can lead to loss of yield due to repeated days on which photosynthesis is impaired due to wilting. A dry midsummer after a wet Spring - precisely the conditions in Norfolk in 2018 - also raises the risk of infestation by the nematode Heterodera schachtii, a parasite of sugar beet | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
| Taille de l’image : | 5212 px × 3468 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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