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:

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 

A technique of micropropagation is  
1. Somatic hybridization  
2. Somatic embryogenesis
3. Protoplast fusion
4. Embryo rescue 

A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called         
1. Ley farming
2. Contour farming
3. Strip farming
4. Shifting agriculture