Infections of Plants (GATE - XL)
Description: GATE - XL | |
Number of Questions: 15 | |
Created by: Rachana Sahu | |
Tags: GATE - Life science Infections of Plants Diseases of Important Crops Caused by Fungi |
Which of the following Musa acuminata diseases is caused by Cercospora hayi?
In carrot, Sclerotinia minor causes the disease
Which of the following diseases of beans is caused by Xanthomonas campestris?
Which of the following diseases are caused by fungal pathogens only in barley?
P. Kernel blight Q. Anthracnose R. Dwarf bunt S. Leaf rust T. Basal glume rot
Which of the following methods are employed for the detection of plant viral diseases?
P. Electron microscopy Q. Serological assay R. Agglutation assay S. ELISA T. NAHA
Botrytis cinerea causes the disease ___________ in coffee.
Which of the following PCR formats is/are used in the detection of both DNA and RNA viruses?
P. RT-PCR Q. IC-PCR R. IC-RT-PCR
Match the apple diseases in List - A with causing fungal pathogens in List - B and select the correct answer using the codes given below the lists.
List - A | List - B |
A. Perennial canker | 1. Grovesinia pyramidalis |
B. Fruit decay | 2. Neofabraea perennans |
C. Pink mold rot | 3. Trichothecius roseum |
D. Zonate leaf spot | 4. Valsa ceratosperma |
5. Phomopsis mali |
Which of the following statements is/are false?
P. Bunchy top disease of banana is caused by Pyricularia grisea. Q. Pseudomonas solanacearum causes Pseudostem heart rot disease in banana. R. Rhizome rot disease of banana is caused by Erwinia carotovora.
Which of the following statements is/are true?
P. Spot anthracnose disease of rose is caused by Sphaceloma rosarum. Q. Bordeaux mixture was introduced by Pierre-Marie-Alexis Millardet in 1885. R. Plant pathogenic disorders can be controlled by crop rotation.
Which of the following pairs of ‘wheat disease: causing fungal species’ is not correctly matched?
In citrus, among the following fungi, Areolate leaf spot is caused by
The diseases caused by Erwinia stewartii and Pseudomonas syringae in maize, respectively, are
Which of the following pairs represents the ‘Dry rot disease’ causing pathogens in Citrus?
Which of the following apple diseases is caused by Agrobacterium rhizogenes?