Cytology of Some Grasses from Haryana and Shiwalik Hills

Abstract

The present paper deals with the male meiosis of 17 species covered under 11 genera of the family Poaceae. Three species: Cynodon dactylon (n=8), Sporobolus diander (n=9) and S. helvolus (n=9) are the new cytotypes from world. Further, five species i.e., Avena fatua, A. sativa, C. dactylon, Lolium temulentum var. temulentum and Phalaris minor show anomalous meiotic behavior with the presence of cytomixis, chromatin bridges, laggards, secondary associations and interbivalent connections which lead to low pollen viability.