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GCSE Biology AQA (9-1) Triple

Black Leaves Rate Symptoms Rose Spot Develop Purple

Symptoms of rose black spot include black or purple spots on leaves, yellowing and shedding of leaves, and a reduced rate of photosynthesis.

Gül kara lekesi belirtileri arasında yapraklarda siyah veya mor lekeler, yaprakların sararması ve dökülmesi ve fotosentez oranının düşmesi yer alır.

Front What are the symptoms of rose black spot?
Back
  • The leaves develop black or purple spots
  • The leaves then turn yellow and fall off
  • Rate of photosynthesis falls, which reduces rate of growth

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