Consider the following statements regarding synthetic varieties
1. Parental materials are always inbred lines.
2. Open pollinated materials are also used as parental lines.
3. There is no limit on the number of parental lines used.
4. Parental lines are always tested for their combining ability.
Which of the statements given above is/are correct?

Solution(By Examveda Team)

The following statements regarding synthetic varieties are correct:
2. Open pollinated materials are also used as parental lines.
4. Parental lines are always tested for their combining ability.
A synthetic variety is developed by intercrossing several genotypes of known superior combining ability i.e., genotypes that are known to give superior hybrid performance when crossed in all combinations.
Synthetic variety is a variety that is developed by inter-mating in all possible combinations some inbred lines with good general combining ability and mixing their seeds.