Light micrograph of a seed grain of Allium cepa,onion,showing a single untreated seed grain of commercially available seeds. Microscopic contrast technique : Incident lighting. Magnification 50x when printed 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Guenther, Gerd |
Taille de l’image : | 5000 px × 3792 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |