[Electron microscopical detection of the blossom sterility of elder (Sambucus nigra L.)].
D006652:Histological Techniques; D008854:Microscopy, Electron; D010935:Plant Diseases; D010942:Plant Viruses
Elektronenmikroskopischer Nachweis der Blütensterilitât des Holunders (Sambucus nigra L.)