Cotton MCQs - ICAR JRF - IBPS AFO - AGRI MPSC - AGRONOMY JRF

 Cotton JRF MCQs Part - 1

16. What is the seed rate for cultivation of cotton?

A) 10-15 kg/ha
B) 20-25 kg/ha
C) 2-3 kg/ha
D) 1-1.5kg/ha

ANSWER= (C) 2-3 kg/ha
Explain:- A) Seed rate for Desi Cotton :- 12-15 kg/ha B) Seed rate for American Cotton :- 15-25 kg/ha C) Seed rate for hybrid Cotton :- 2-3 kg/ha D) Seed rate for Bt Cotton :- 1-1.5kg/ha

 

17. Who is the father of Bt Cotton in India?

A) C. T. Patel
B) C. D. Mayee
C) Ernst Berliner
D) Dr. M. S. Swaminathan

ANSWER= (B) C. D. Mayee
Explain:-

 

18. Optimum Plant population for Bt. Cotton per hectare is…

A) 10,000
B) 55,555
C) 16,666
D) 50,000 – 80,000

ANSWER= (1) 10,000
Explain:- A) Plant population for Desi Cotton :- 55,555 plant/ha B) Plant population for American Cotton:- 50,000 – 80,000 plant/ha C) Plant population for Hybrid Cotton:- 16,666 plant/ha D) Plant population for Bt. Cotton :- 10,000 plant/ha

 

19. Optimum Plant population for Desi Cotton per hectare is…

A) 10,000
B) 55,555
C) 16,666
D) 50,000 – 80,000

ANSWER= (B) 55,555
Explain:- Refer Question 18

 

20. The appearance of flower bud in cotton is known as

A)Ear head
B) Truss
C) Panicle
D) Square – 80,000

ANSWER= (D) Square
Explain:- Square

 

21. Crinckle leaf of cotton is due to

A) Zn deficiency
B) Mn Toxicity
C) B deficiency
D) Ca deficiency

ANSWER= (B) Mn Toxicity
Explain:- Little leaf in cotton :- Zn deficiency Crikle leaf of cotton :- Mn Toxicity

 

22.Which is the first inter specific hybrid of cotton?

A) Varalaxmi
B) H-4
C) B deficiency
D) Bollgaurd

ANSWER= (A) Varalaxmi
Explain:- Varalaxmi is first hybrid it is cross between G. hirsutum × G. barbadence.

 

23. Water requirement of cotton is?

A) 300-600mm
B) 500-600mm
C) 800-900mm
D) 1500-1800mm

ANSWER= (B) 800-900mm
Explain:- 800-900mm

 

24. Bt cotton is effective against…

A) Aphids
B) Red Cotton Bug
C) Leaf roller
D) Bollworm pest

ANSWER= (D) Bollworm pest
Explain:- Bollworm pest

 

25. Cotton is also known as…

A) Green Gold
B) White Gold
C) Black Gold
D) All of these

ANSWER= (B) White Gold
Explain:- White Gold

 

26. Bad opening of flowers in cotton is known as….

A) Tirak
B) Boll
C) Square
D) None of these

ANSWER= (A) Tirak
Explain:- Tirak

 

27.Short fiber remains attached to seed after ginning is….

A) Hull
B) Lint
C) Tinter
D) Kernal

ANSWER= (C) Tinter
Explain:- Tinter

 

28. Little leaf of cotton is due to…..

A) B deficiency
B) Zn deficiency
C) Mn deficiency
D) Ca deficiency

ANSWER= (B) Zn deficiency
Explain:- Zn deficiency

 

29. In cotton, which type of Emasculation is mostly followed?

A) Doak's method
B) Thumb & Nail method
C) Hot water method
D) Cold method

ANSWER= (B) Thumb & Nail method
Explain:- Thumb & Nail method

 

30. Family of cotton

A) Solanaceae
B) Fabaceae
C) Poacea
D) Malvaceae

ANSWER= (D) Malvaceae
Explain:- Malvaceae