____________ converts ammonia into nitrite?
A. Nitrosomonas
B. Nitrobacter
C. Azotobacter
D. Rhizobium
Plant Pathology
__________ is gram-positive?
__________ is gram-positive?
A. Xanthomonas
B. Corynebacterium
C. Pseudomonas
D. Erwinia
The coprophilic fungi inhabit:
The coprophilic fungi inhabit:
A. Dung substratum (herbivore feces)
B. Deadwood
C. Decaying leaves
D. Food articles
Erysiphe caused the _________ disease?
Erysiphe caused the _________ disease?
A. Powdery mildews
B. Downy mildews
C. Covered smut
D. Late blight of potato
The Tree sends down roots from its branches to the soil is known as:___________?
The Tree sends down roots from its branches to the soil is known as:___________?
A. Oak
B. e
C. Banyan
D. Palm
The whole body of fungus is known as________________?
The whole body of fungus is known as________________?A. Thallus
B. Hyphae
C. Mycellium
D. Septale
B. Hyphae
C. Mycellium
D. Septale
Which one of the following is disease of wheat_________________?
Which one of the following is disease of wheat_________________?
A. Leaf rust
B. Strip rust
C. Loose rust
D. All the above
Fungi damage our crops by_________________?
Fungi damage our crops by_________________?
A. Producing toxic substances in plants
B. Destroying green pigment of plant
C. feeding on flowers and fruits
D. Absorption of nutrients from plant tissues
Root knot disease is caused by___________________?
Root knot disease is caused by___________________?
A. Fungi
B. Nematodes
C. Virus
D. Bacteria
Pathogen is_________________?
Pathogen is_________________?
A. Fungi which cause disease
B. Any bacteria which causes disease
C. Any virus which causes disease
D. Any organism which causes disease