All India Coordinated Sorghum Improvement Project, IARI-Regional Station, Rajendranagar, Hyderabad, 500 030 (A.P.)
Autotetraploids induced from diploid apomictic grain sorghum exhibited a lower number of univalents, trivalents and quadrivalents and a greater number of bivalents. The chiasma frequency of the autotetraploids is also higher than their diploid parent. Tetraploids exhibited remarkably high male and female fertilities. The possible application of tetraploids in grain sorghum breeding is discussed.
