Breeding Fiber Crops MCQs

1. Which of the following is the primary goal of fiber crop breeding?
(A) Increasing the seed yield
(B) Enhancing fiber length and quality
(C) Improving the plant’s resistance to diseases
(D) Reducing the time to harvest

2. In cotton breeding, which of the following is a key trait being selected for improving fiber quality?
(A) Seed coat color
(B) Fiber fineness (micronaire value)
(C) Root depth
(D) Chlorophyll content

3. Which of the following is a commonly used technique in the breeding of fiber crops to improve disease resistance?
(A) Mutagenesis
(B) Hybrid vigor
(C) Marker-assisted selection
(D) Grafting

4. What is the role of “genomic selection” in breeding fiber crops?
(A) To improve fiber length and quality through conventional breeding
(B) To select desirable traits based on the genomic data of the plant
(C) To increase the amount of fiber produced per hectare
(D) To enhance the aesthetic qualities of the plant

5. Which fiber crop is primarily known for its use in producing jute, an important natural fiber?
(A) Cotton
(B) Flax
(C) Jute
(D) Hemp

6. In the breeding of flax for fiber production, what is the ideal plant height that breeders aim for?
(A) Shorter plants for better disease resistance
(B) Moderate plant height for optimal fiber yield
(C) Taller plants for stronger fibers
(D) Very tall plants for high seed yield

7. Which of the following is a critical factor affecting the fiber strength of cotton?
(A) Seed size
(B) Fiber maturity
(C) Leaf color
(D) Soil pH

8. Which of the following is the primary genetic source for disease resistance in cotton breeding?
(A) Wild cotton species
(B) Commercial cotton varieties
(C) Transgenic cotton varieties
(D) Non-cotton fiber crops

9. In the breeding of fiber crops like hemp, which of the following traits is prioritized for industrial uses?
(A) Seed size
(B) Fiber length and strength
(C) Flowering time
(D) Pest resistance

10. What is the main challenge in breeding fiber crops for climate change adaptation?
(A) Increasing fiber yield
(B) Enhancing fiber quality
(C) Developing drought and heat-tolerant varieties
(D) Reducing pest susceptibility

11. Which of the following techniques is used to create genetically modified fiber crops with improved traits like pest resistance or herbicide tolerance?
(A) Crossbreeding
(B) Gene editing
(C) Conventional mutation breeding
(D) Somaclonal variation

12. Which of the following is a commonly used breeding method for improving fiber yield in cotton?
(A) Mutation breeding
(B) Hybrid breeding
(C) Grafting
(D) Tissue culture

13. In flax breeding, what is the most important characteristic affecting fiber quality?
(A) Number of seeds per plant
(B) Plant maturity at harvest
(C) Presence of lignin in the fiber
(D) Root depth

14. What is the primary advantage of using polyploidy in the breeding of fiber crops?
(A) Increased fiber length
(B) Enhanced disease resistance
(C) Increased fiber yield through larger cells
(D) Improved seed germination rate

15. Which of the following techniques is used to assess the genetic diversity of fiber crops in breeding programs?
(A) Gel electrophoresis
(B) Genetic fingerprinting
(C) Clonal selection
(D) Pollen viability tests