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CTET Prep: Science Questions - Biology - Plant Disease
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Plant diseases can be broadly classified according to the nature of their primary causal agent, either infectious or noninfectious. Infectious plant diseases are caused by a pathogenic organism such as a fungus, bacterium, mycoplasma, virus, viroid, nematode, or parasitic flowering plant.

CTET Prep: Science Questions - Biology - Plant Disease
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25 Questions

1. Red stripe of sugarcane is caused by which bacteria
2. Sulphur is absorbed by plant as
3. Citrus Cankar is a
4. Black heart of potato is due to
5. Little leaf rosetting is deficiency symptom of
6. White rust of crucifers is caused by
7. Internal cork of apple is deficiency symptom of
8. Claviceps purpurea is the casual organism of
9. Factor which are most responsible for disease in plant is
10. In India famous Bengal famine accurred in 1942 by a disease in rice is called
11. The disease fire blight is related with
12. Which of the following disease is not caused by fungus in plant?
13. Red rust disease of tea is caused by
14. Fungus responsible for disease late blight of potato is
15. Fungus responsible for bengal famine is
16. Tikka disease is related with the crop as
17. Nitrogen fixing enzyme found in root nodules is
18. Which one is responsible for red rot of sugarcane?
19. Milibug is related with the crop
20. The scientist who studied about wheat rust problem is/are
21. Leaf spot disease of rice is caused by
22. Deficiency of magnesium causes
23. Most of the plants obtain nitrogen from the soil in the form of
24. Which of the following stages of development of insect is most harmful for crop?
25. Match the following: List-I (Plant disease) List-II (Factor)
A. Citrus canker 1. Insects
B. Red rot of sugarcane
2. Deficiency of Oxygen
C. Krishnakant disease of potato
3. Bacteria
D. Sahu disease of wheat
4. Fungus Codes A B C D

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