Principles of Plant Breeding (2+1)

Procedure for oligogenic traits

• M1- Several hundred seeds are treated with mutagen and are space planted M1 plants are selfed and harvested separately.
• M2-About 2000 progeny rows are grown. Oligo genic mutants are selected and the seed are harvested separately and advanced to M3 , M3 are grown as individual plant progeny
• M3 -Progeny rows from individual selected plants are grown. Poor and inferior mutant rows are eliminated if the mutant progenies are homogenous two or more M3 progeny may be bulked. M3 are harvested in bulk and are advanced to preliminary yield trail in M4.
• M4 – Preliminary yield trial with suitable checks, promising mutants are selected for replicated multi location trial.
• M5-M7 Replicated multi location trials are conducted. Outstanding variety may be retained for hybridization.