2016 Volume 11 Issue 1 Pages 14-20
Male meiotic studies in ten species of grasses (Poaceae) were carried out from District Kinnaur, Himachal Pradesh, India, between the altitudinal ranges of 2000 to 3080 m. All the species were worked out cytologically for the first time from the study area. The hexaploid cytotype in Thysanolaena agrostis (n=33) made new addition for the species on a worldwide basis, supplementing the earlier report of n=11 and 12. The meiotic course in all the species studied was found to be abnormal. Cytomixis in two species, Apluda mutica and Elymus dahuricus was reported here for the first time. Besides abnormal meiotic course the microsporogenesis was found to be normal in all the species but these abnormalities results in the reduction of pollen fertility in the plants.
