Loose Smut of Wheat
It is one of the common disease of wheat caused by Ustilago tritici. Smut fungi belonging to order Ustilaginales are parasites both on monocots and dicots. Since they impart sooty appearance due to production of black spore mass they are generally described as smut fungi. The mycelium of these fungi is parasitic dikaryotic and quite […]
Red Rot of Sugarcane
Introduction: Red rot, caused by Colletotrichum falcatum, is one of the major diseases of sugarcane in the world. Symptoms: Red rot attacks the stalks, stubble rhizomes, and leaf midribs of the sugarcane plant. It may invade leaf-blade and leaf-sheath tissues and is capable of infecting sugarcane roots but it is not important as a disease of […]
Damping Off
Introduction: Damping-off of seedlings, which is caused mostly by fungi, can be a complex of several diseases occurring separately or simultaneously. Most commonly, either Rhizoctonia or Pythium is involved. Botrytis, Sclerotinia, and Alternaria are also occasionally responsible for damping-off. Symptoms: Because damping-off is caused by several different organisms on many different plants, symptoms of disease […]
Late Blight of Potato
Late blight is not only the most serious fungal disease of potatoes, it also occurs almost everywhere where potatoes are grown and is especially important in the traditional potato growing areas. On several occasions the disease has reached disastrous proportions. Well documented is the Irish Famine of around 1845 to 1850 when, as a result […]
White rust of Crucifers
HOSTS White rust most commonly occurs on: field mustard (Brassica campestris L.), leaf or Chinese mustard (B. juncea Zerj, & Coss.), black mustard (B. nigra (L.) Koch), broccoli and cauliflower (B. oleracea L. var. botrytis L.), Chinese or celery cabbage (B. pekinensis (Lour.) Rupr.), rutabaga (B. campestris L. var. napobrassica (L.) DC.), pak-choi (B. chinensis L.), turnip (B. rapa L.), radish (Raphanus sativus […]
Muscular System
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Skeletal System
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Coordination & Conrol
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The Cell
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Support and Movement
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