84 Selection of the Offspring from Mutation 透变后代的选育 1. MI Generation Careful field management, physiological injuries. No selection applied Selfin g 2. M2 Generation Plant/ear row growing(20-50 plants/row) large offspring population as possible(ten thousands per treatment)(since mutations always recessive) 3. M3 and Later Generation Plant-row growing Selection of the desirable plant line Line comparative Trials+ New Varieties§4 Selection of the Offspring from Mutation 诱变后代的选育 1. M1 Generation - Careful field management, physiological injuries. - No selection applied - Selfing 2. M2 Generation - Plant/ear row growing (20-50 plants/row) - large offspring population as possible (ten thousands per treatment) (since mutations always recessive) 3. M3 and Later Generation - Plant-row growing - Selection of the desirable plant line - Line comparative Trials New Varieties