Question:

Arrange the following steps of gladiolus hybrid development in correct sequence?
A. Development of hybrids
B. Combining ability testing of inbred lines
C. Development of inbred lines
D. Seed production of hybrids
E. Parents selection and hybrid development
Choose the correct answer from the options given below

Show Hint

In hybrid breeding, "Testing" always follows "Development of Inbreds". You can't produce a commercial hybrid without first knowing which parents "combine" well.
  • C, D, E, B, A
  • A, D, C, B, E
  • C, B, E, A, D
  • A, D, E, C, B
Show Solution
collegedunia
Verified By Collegedunia

The Correct Option is C

Solution and Explanation

Step 1: Understanding the Concept:
Hybrid development follows a logical scientific progression to identify the best parental combinations and produce high-quality offspring.

Step 2: Detailed Explanation:

The sequence of hybrid development generally follows these steps:
1. Development of inbred lines (C): Before making hybrids, breeders develop homozygous inbred lines through several generations of selfing to ensure parental purity.
2. Combining ability testing (B): Once inbreds are ready, they are tested (e.g., through diallel or line x tester crosses) to see which ones produce superior hybrids when crossed.
3. Parents selection and hybrid development (E): Based on the testing results, the best-performing parents are selected for the final hybridization program.
4. Development of hybrids (A): The actual large-scale crossing of selected parents is done to produce the hybrid population.
5. Seed production of hybrids (D): Finally, the commercial hybrid seed is produced for release to farmers/growers.
This sequence (C \(\rightarrow\) B \(\rightarrow\) E \(\rightarrow\) A \(\rightarrow\) D) ensures a systematic approach to breeding.

Step 3: Final Answer:

The correct sequence is C, B, E, A, D.
Was this answer helpful?
0
0

Top ICAR AIEEA Horticulture Questions

View More Questions