Core:- IV
Mycology and Phytopathology
Bsc 2nd semester
1.write the answer on following question.(any five)
(i) What are the different growth from lichen?
(ii)What do you mean by applied mycology?
(iii)Write the meaning s of " Plantphytology".
(iv)What is a biotroph?
(v)What is a disease?
(vi)Give the general symptoms of bacterial disease in plant.
(vii)What is symbiotic association?
2.Fill up the Blanks with most approoriate answer.(Any five)
(a) Yellow vein clearing disaease is commonly seen in ___________
(b)The outer hard black external layer of the rhizomorpho is called_________
(c)Prosorus is otherwised called___________
(d)Rot of sweet potatoe is caused by___________
(e)Aspergillus belong to order ___________
3.Give an account of the modern classification of fungi.Classification of fungi alexopolous adn Bessey?
or
Give a general account of the character of class chytridiomycetes.Draw the disease cycle of potato wart disease?Write to short notes on asexual reproduction in synchytrium?
4.Discuss the geoigraphical distribution of plant disease .Discus how environment effect the disease?Give an account of disease control by principle of exclussion.writes notes on"Quarantine".
or
Discuss the significance of ecotomycorrhizal ?Brief account of arbuscular mycorrhizas.Describe the economic importance of lichene.write the short notes on "Anatomy of lichen thallus".
5. Write the short notes on (any four)
(i) Parasexualitry
(ii)Asexuall reproductionof Peziza.
(iii)Generak Character iof slime molds.
(iv) Types of plant pathology.
(v)Components of disease.
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