Plant Pathology MCQ’s– Plant Pathology Multiple Choice Questions have very important place in all Agriculture Competitive Exams. which include National Eligibility Test, Pre Agriculture Test, Common Entrance Test etc.
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Last Updated: 28/12/2020, 08:50 am IST.
Number of Questions Added: 05, #50-54.
INDEX
S. NO. | HEADINGS |
1. | PART 01: PURCHASE MCQ(S) |
2. | PART 02: PLANT PATHOLOGY MCQ(S) |
PART 01: PURCHASE MCQ(S)
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PART 02: PLANT PATHOLOGY MCQ(S)
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Question – #1. The citrus canker lesions are characterized by the over development of?
(a). Parenchymatous tissues.
(b). Epidermal tissues.
(c) Ectodermal tissues.
(d). Endodermal tissues.
Question – #2. A form canker in citrus is caused by?
(a). Xanthomonas compestris pv. citri
(b). X. axonopodis pv. citri.
(c). X. axonopodis pv. aurantifolia.
(d). X. axonopodis pv. citrumelo.
Question – #3. The symptoms of black arm in cotton appears…?
(a). When bacteria attacks on stalk.
(b). When bacteria attacks on internodes.
(c). When bacteria attacks on stem.
(d). When bacteria attacks on poor twigs.
Question – #4. The Lethal Dilution Effect is found in most……?
(a). Xanthomonas and other bacteria.
(b). Pseudomonas and other bacteria.
(c). RSD and other bacteria.
(d). Non of the above.
Question – #5. Which is known as true canker?
(a). Mango canker.
(b). Citrus canker.
(c). Butternut canker (no cure).
(d). Tomato canker.
Question – #6. The casual organism of wilt of cotton wilt is?
(a). Fusarium oxysporium.
(b). Verticillium dahliae.
(c). Both a and b.
(d). None of the above.
Question – #7. Causal organism of wheat ear cockle?
(a). Fungus.
(b). Bacteria.
(c). Virus.
(d). Nematode.
Question – #8. Which type of parasite witchweed is ?
(a). Semi-root parasite.
(b). Semi-stem parasite.
(c). Root parasite.
(d). Stem parasite.
Question – #9. Management practice of RSD includes?
(a). Disease free nursery.
(b). Heat therapy of seed.
(c). Selection of seed from commercial crop.
(d). All of the above.
Question – #10. Grassy Shoot Disease was first noticed in India?
(a). Madhya Pradesh.
(b). Uttar Pradesh.
(c). Maharastra.
(b). Gujarat.
Question – #11. The famous Bengal famine is related with?
(a). Potato.
(b). Rice.
(c). Wheat.
(d). Maize.
Question – #12. Late blight of potato is caused by?
(a). Phytophthora erythroseptica.
(b). Phytophthora infastans.
(c). Pythium aphanidermatum.
(d). Non of the above.
Question – #13. Late blight of potato was first introduced in India in which place?
(a). Ooty.
(b). Aravali range.
(c). Nilgiri hills.
(d). Vindhya.
Question – #14. Tuber blight of potato is caused by?
(a). Phytophthora nicotianae.
(b). P. erythroseptica.
(c). P. drescheleri.
(d). P. infestans.
Question – #15. Which is true for late blight of potato under field condition?
(a). The effect is secondary.
(b). The effect is primary.
(c). The effect is tertiary.
(d). Both a and b.
Question – #16. The only effective method of control of citrus canker is?
(a). Streptomicin.
(b). Tetracycline.
(c). Bordeaux mixture.
(d). Burning of affected trees.
Question – #17. Which is a vector of citrus canker?
(a). Planoccus citri.
(b). Thrips nilgiriensis.
(c). Phyllocnistis citrella.
(d). Diphornea citri.
Question – #18. The angular leaf spot of cotton was first reported in which country?
(a). USA.
(b). China.
(c). India.
(d). Sri Lanka.
Question – #19. Whiptail of cauliflower is due to deficiency of?
(a). Molybdenum.
(b). Zinc.
(c). Iron.
(d). Boron.
Question – #20. Target spot develops in leaf in which disease?
(a). Tomato, early blight.
(b). Rice blight.
(c). Late blight potato.
(d). All of the above.
Question – #21. Choose the Pseudomonas bacteria which act as plant pathogen?
(a). P. aeruginosa.
(b). P. syringae.
(c). P. putida.
(d). P. fluorescent.
Question – #22. 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.
Question – #23. Which siderophore is produced by Pseudomonas fluorescnens?
(a). Pyocyanin.
(b). Thioquinolobactin.
(c). Both a and b.
(d). Non of the above.
Question – #24. The most common secretion of Pseudomonas spp. is?
(a). Pyoverdine.
(b). Pyocyanin.
(c). Other fluorescent.
(d). Thioquinolobactin.
Question – #25. Bacterial blotch of cultivated mushrooms is caused by?
(a). P. agarici.
(b). P. syringae.
(c). P. tolassii.
(d). Non of the above.
Question – #26. Rice blast is caused by?
(a). Bacteria.
(b). Fungus.
(c). Virus.
(d). Mycoplasma.
Question – #27. New biomaker technology is used to control which disease in rice.
(a). Bacterial leaf blight.
(b). Blast.
(c). Sheath blight.
(d). Rust.
Question – #28. Sorghum is a non-host plant for which species of nematode?
(a). Soybean cyst nematode.
(b). Reniform nematode.
(c). Both a and b.
(d). Non of the above.
Question – #29. 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.
Question – #30. As a thumb of rule which part of plant is affected by the flag smut of wheat?
(a). Upper part of leaf.
(b). Stem.
(c). Root.
(d). Every shoot of plant.
Question – #31. The casual organism of leaf smut of rice is?
(a). Entyloma Oryzae.
(b). Tilletia barclayana.
(c). Xanthomonas oryzae.
(d). Tilletia oryzae.
Question – #32. Witches broom in different plants is caused by?
(a). MLO.
(b). Virus.
(c). Fungi.
(d). All of the above.
Question- #33. Occurrence of endemic pest is defined as….?
(a). Occurs most frequently.
(b). Occurs in few localities.
(c). Occurs in same area year after year.
(d). Occurs in an area in severe form.
Question- #34. Molya is a disease of….?
(a). Rice.
(b). Wheat.
(c). Sugarcane.
(d). Maize.
Question- #35. Zinc deficiency is a major problem in…..?
(a). Wheat.
(b). Rice.
(c). Sugarcane.
(d). Millets.
Question- #36. Foot rot disease in rice is due to?
(a). Gibberella fujikuroi.
(b). Rhizoctonia solani.
(c). Phytophthora infestans.
(d). Fusarium oxysporium.
Question- #37. Viravar and hot treatment of seed is done against?
(a). False smut.
(b). Loose smut.
(c). Flag smut.
(d). Ear cokle.
Question- #38. The “Black 47” is related to….?
(a). Great Bengal Famine.
(b). Irish Famine.
(c). Famine in Edessa.
(d). Famine throughout Europe 1016.
Question- #39. The “Black 47” is related with…..?
(a). Tomato.
(b). Wheat.
(c). Rice.
(d). Banana.
Question- #40. Neck blast is a disease of?
(a). Rice.
(b). Wheat.
(c). Gram.
(d). Rose.
Question- #41. Main agent of E. J. Butler’s book is..?
(a). Fungus.
(b). Virus.
(c). Bacteria.
(d). Other.
Question- #42. Father of epidemiology is..?
(a). T. O. Diener.
(b). E. J. Butler.
(c). K. C. Mehta.
(d) Vanderlank.
Question #43. Of the 35% annual crop loss, …. % crop loss is due to nematode?
(a). 8%.
(b). 5%.
(c). 11%.
(d). 15%.
Question #44. Of 35% annual crop loss, ….% crop loss is due to fungi, bacteria, virus?
(a). 10%.
(b). 11%.
(c). 14%.
(d). 12%.
Question 45. Montek disease of rice is caused by..?
(a). Rice root nematode.
(b). Fusarium spp.
(c). Helminthosprium.
(d). Pyricularia.
Question 46. Mango malformation is common in..?
(a). North-East India.
(b). South-East India.
(c). North-West India.
(d). South-West India.
Question 47. Apart from thielaviopsis root rot, Thielaviopsis spp. causes?
(a). Canker rot.
(b). Black root rot.
(c). Both a and b.
(d). Cottony rot.
Question 48. …. species uses cell-wall-degrading enzymes to cause soft rot?
(a). Pythium.
(b). Erwinia.
(c). Phytophthora.
(d). All of the above.
Question 49. Consider about the great famine….
- The worst period was 1947.
- It was early blight.
- It was late blight.
- Succeeded by Irish famine 1979.
(a). 1 and 2 are true.
(b). 1, 2 and 3 are true.
(c). 2, 3 and 4 are true.
(d). All are true.
Question 50. Coffee rust in ….. was observed in…?
(a). Sri Lanka, 1885.
(b). India, 1875.
(c). Ghana, 1885.
(d). Brazil, 1875.
Question 51. The Bordeaux mixture was invented in..?
(a). UK.
(b). France.
(c). Portugal.
(d). Sweden.
Question 52. Wheat rust is considered as..?
(a). Endemic disease.
(b). Pandemic.
(c). Epidemic disease.
(d). Non of the above.
Question 53. Elemental sulphur is @..?
(a). 10 kg/ha.
(b). 15 kg/ha.
(c). 20 kg/ha.
(d). 25 kg/ha.
Question 54. Trade name of carboxin is?
(a). Plantvax.
(b). Arasan.
(c). Vitavax
(d). Benomyl.
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Your questions are very good sir!
Thank you v much…
Nice