New chromosome numbers reported in grasses from Himachal Pradesh (India)

概要

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At present, cytological evaluation has been done on population basis of nine species belonging to six genera of family Poaceae from district Kangra of Himachal Pradesh, a hilly state of Western Himalayas. On the basis of world-wide data, the chromosome number counts have been made for the first time for three species such as Agrostis debilis (n=14), Poa nepalensis (n=14) and P. setulosa (n=14); variable chromosome number reports for Eleusine indica (n=14) and higher frequency of B-chromosomes in Poa annua (n=14+0-3B). Likewise, for information on reports from India, four species such as Piptatherum microcarpum (n=12), Rottboellia exaltata (n=30), Setaria barbata (n=18) and Setaria megaphylla (n=18) have been cytologically worked out for the first time.