Match List-I (Diseases) with List-II (Causative agents) and select the correct answer:
| List-I | List-II |
| a. Covered smut of Barley | 1. Alternaria solani |
| b. Early blight of Potato | 2. Ustilago hordei |
| c. Red rot of Sugarcane | 3. Xanthomonas citri |
| d. Citrus canker | 4. Colletotrichum falcatum |
A. a-2, b-4, c-3, d-1
B. a-2, b-1, c-4, d-3
C. a-3, b-4, c-1, d-2
D. a-3, b-2, c-1, d-4
Answer: Option B
Related Questions on Plant Anatomy and Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem

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