(a) What are the major causes of low productivity of oilseed and pulse crops in India? Suggest strategies for increasing the production and productivity of oilseed crops in the country.

(b) Describe the causes of increasing threats of Parthenium weed in the country. Write integrated methods of weed management with suitable examples.

2Medium15 marks

What is Public Distribution System (PDS) and what are its objectives ? How does targeted public distribution system overcome problems with PDS ?

3Medium50 marks

(a) Explain self-incompatibility and its mechanism. Discuss relevance of self-incompatibility in plant breeding.

(b) What do you understand by the term seed quality? Describe the regulatory and certification systems that are in place to ensure seed quality.

(c) Enumerate various types of structural chromosomal aberrations with their types. Give detailed account of inversion-type structural aberration.

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