Plant Pathology Multiple Choice Questions (MCQ). Plant Pathology MCQ are most important for all agriculture exam [y] like ICAR-JRF Plant Science, JRF Entomology, JRF Horticulture, JRF Agronomy [y], BHU Pre-PG, Raj Pre-PG [y], IBPS-SO/AFO [y], NET [y], CCI, IFFCO, NSC, AO, AAO etc.
Q. 31. Which group is resistant to potato cyst nematode.
a). Kufri swarna and kufri thenmalai
(b). Kufri swarna and kufri malar
(c). Kufri swarna and kufri giriraj
(d). All of the above
a). Kufri swarna and kufri thenmalai
Q. 32. Sorghum is a non-host plant for which species of nematode?
a). Soybean cyst nematode
b). Reniform nematode
c). Both a and b
d). None of the above
c). Both a and b
Q. 23. Foot rot disease in rice is due to?
a). Gibberella fujikuroi
b). Rhizoctonia solani
c). Phytophthora infestans
d). Fusarium oxysporium
a) Gibberella fujikuroi
Q. 34. New biomaker technology is used to control which disease in rice.
a). Bacterial leaf blight
b). Blast
c). Sheath blight
d). Rust
a). Bacterial leaf blight
Q. 35. Rice blast is caused by?
a). Bacteria
b). Fungus
c). Virus
d). Mycoplasma
b). Fungus
Q. 36. Bacterial blotch of cultivated mushrooms is caused by?
a). P. agarici
b). P. syringae
c). P. tolassii
d). Non of the above
c). P. tolassii.
Q. 37. The most common secretion of Pseudomonas spp. is?
a). Pyoverdine
b). Pyocyanin
c). Other fluorescent
d). Thioquinolobactin
a). Pyoverdine
Q. 38. Which siderophore is produced by Pseudomonas fluorescnens?
a). Pyocyanin.
b). Thioquinolobactin.
c). Both a and b.
d). None of the above
b). Thioquinolobactin.
Q. 39. Pseudomonas putida is a bacteria which is known as?
(a). Plant pathogen.
(b). Soil bacterium.
(c). Plant growth prompting bacteria.
(d). Non of the above.
b). Soil bacterium.
Q. 40. Choose the Pseudomonas bacteria which act as plant pathogen?
(a). P. aeruginosa.
(b). P. syringae.
(c). P. putida.
(d). P. fluorescent.
(b). P. syringae.