Which one of the following is a viral disease of poultry?
1. Pasteurellosis
2. Salmonellosis
3. Coryza
4. New castle disease
Probiotics are
1. live microbial food supplement
2. safe antibiotics
3. cancer-inducing microbes
4. new kind of food allergens
Consider the following four measures (a-d) that could be taken to successfully grow chick-pea in an area where bacterial blight disease is common
a. Spray with Bordeaux mixture
b. Control of insect vector of the disease pathogen
c. Use of only disease-free seeds
d. Use of varieties resistant to the disease
Which two of the above measures can control the disease?
1. (a) and (d)
2. (b) and (c)
3. (a) and (b)
4. (c) and (d)
Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide?
1. Black rust of wheat
2. Bacterial leaf blight of rice
3. Downy mildew of grapes
4. Loose smut of wheat
Somaclones are obtained by
1. Genetic engineering
2. Tissue culture
3. Plant breeding
4. Irradiation
Breeding of crops with high levels of minerals, vitamins and proteins is called
1. Micropropagation
2. Somatic hybridization
3. Biofortification
4. Biomagnifications
Himgiri developed by hybridization, and selection for disease resistance against rust pathogens, is a variety of:
1. | Wheat | 2. | Chilli |
3. | Maize | 4. | Sugarcane |
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A collection of plants and seeds having diverse alleles of all the genes of a crop is called
1. Genome
2. Herbarium
3. Germplasm
4. Gene library
Consider the following statements (a-d) about organic farming
a. Utilizes genetically modified crops like Bt cotton.
b. Uses only naturally produced inputs like compost.
c. Does not use pesticides and urea.
d. Produces vegetables rich in vitamins and minerals.
Which of the above statements are correct?
1. (a) and (b) only
2. (b), (c) and (d)
3. (c) and (d) only
4. (b) and (c) only
Which part would be most suitable for raising virus free plants for micropropagation?
1. Meristem
2. Node
3. Bark
4. Vascular tissue