Search results
Results from the WOW.Com Content Network
The plant does this by killing the diseased plant cells forming the halo. Disease progression can cause leaves to wither and fall off of the plant. The stems of the bean plant are also affected by the rust and show symptoms of the rust pustules but are often bigger than those that are found on the leaf surface.
Chocolate spot disease caused by Botrytis fabae manifests itself as small red-brown spots on leaves, stems and flowers of broad bean plants. These enlarge and develop a grey, dead centre with a reddish-brown margin. Spores form on the dead tissue and spread the infection to other plants. In severe infections leaves and flowers may fall and ...
Some rust species form perennial systemic infections that may cause plant deformities such as growth retardation, witch's broom, stem canker, galls, or hypertrophy of affected plant parts. Rusts get their name because they are most commonly observed as deposits of powdery rust -coloured or brown spores on plant surfaces.
Common Bean Diseases (Fact Sheets and Information Bulletins), The Cornell Plant Pathology Vegetable Disease Web Page; Common Names of Plant Diseases, The International Society for Molecular Plant-Microbe Interactions (in Portuguese) Common bean diseases, EMBRAPA (in Portuguese) Main common bean diseases and their control, EMBRAPA with photos
Vicia faba, commonly known as the broad bean, fava bean, or faba bean, is a species of vetch, a flowering plant in the pea and bean family Fabaceae. It is widely cultivated as a crop for human consumption, and also as a cover crop .
Puccinia is a genus of fungi.All species in this genus are obligate plant pathogens and are known as rusts. [1] The genus contains about 4000 species. [2]The genus name of Puccinia is in honour of Tommaso Puccini (died 1735), who was an Italian doctor and botanist who taught anatomy at Hospital of Santa Maria Nuova in Florence.
Chart illustrating 61 morphological terms describing leaf shape, margins and venation. While Diliff's mega-panoramas are a hard act to follow, I thought I would throw the metaphorical hat into the ring with this illustration. I created it with the desire to make a richly encyclopedic image/poster with lots of information about leaf morphology.
Plant species (IUCN, 2023-1) 66,406 extant species have been evaluated; 61,035 of those are fully assessed [a] 34,588 are not threatened at present [b] 26,276 are threatened [c] 174 are extinct or extinct in the wild: 129 extinct (EX) species [d] 45 extinct in the wild (EW) 569 possibly extinct [CR(PE)] 48 possibly extinct in the wild [CR(PEW)]