1. A device (110) for screening at least one plant instance (112) from a plurality of plant instances (114), wherein: the screening device (110) comprises a sensor (116) adapted for obtaining images (117) with spatial resolution, the screening device (110) further comprises at least one selection device (118) adapted to select one plant instance (120) or a group of plant instances (122) from a plurality of plant instances (114) for imaging by the sensor (116), and the device (118) selection with has a deflecting device (124) adapted to deflect electromagnetic waves propagating between plant instances (112) and the sensor (116) .2. A screening device (110) according to claim 1, further comprising at least one greenhouse container (126) with a plurality of plant specimens (114) or a plurality of greenhouse containers (126) with at least one plant specimen (112). 3. A screening device (110) according to claim 1 or 2, adapted to obtain at least one side view image (152) using a deflecting device (124) .4. A screening device (110) according to claim 1 or 2, adapted to simultaneously receive at least two images (117) of one plant instance (120) or a group of plant instances (122), while the images (117) are taken at least under two different viewing angles using a sensor (116) .5. A screening device (110) according to claim 1 or 2, comprising at least one screen element (158) adapted to create a background (160) for at least one of the images (117) .6. A screening device (110) according to claim 1 or 2, comprising at least1. Устройство (110) для скрининга по меньшей мере одного экземпляра (112) растения из множества экземпляров (114) растений, причем:устройство (110) для скрининга содержит датчик (116), адаптированный для получения изображений (117) с пространственным разрешением,устройство (110) для скрининга дополнительно содержит по меньшей мере одно устройство (118) отбора, адаптированное для отбора одного экземпляра (120) растения или группы экземпляров (122) растени