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7
MCQ (Single Correct Answer)

Several South Indian states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of

A

shorter rice plant

B

better irrigation facilities

C

early yielding rice variety

D

disease resistant rice variety

8
MCQ (Single Correct Answer)

Which one of the following combination would a sugarcane farmer look for in the sugarcane crop?

A

Thick stem, long internodes, high sugar content and disease resistant

B

Thick stem, high sugar content and profuse flowering

C

Thick stem, short internodes, high sugar content, disease resistant

D

Thick stem, low sugar content and disease resistant

9
MCQ (Single Correct Answer)

Fungicides and antibiotics are chemicals that

A

enhance yield and disease resistance

B

kill pathogenic fungi and bacteria, respectively

C

kill all pathogenic microbes

D

kill pathogenic bacteria and fungi respectively

10
MCQ (Single Correct Answer)

Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed

A

recombinant DNA technology

B

transgenic mechanism

C

mutation breeding

D

gene therapy

11
MCQ (Single Correct Answer)

The scientific process by which crop plants are enriched with certain desirable nutrients is called

A

crop protection

B

breeding

C

biofortification

D

bioremediation