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Chromosome Numbers in Eleven New Hemarthria (Limpograss) Introductions 1
Author(s) -
Schank S. C.
Publication year - 1972
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1972.0011183x001200040056x
Subject(s) - biology , pollen , ploidy , chromosome , botany , poaceae , agronomy , gene , genetics
Chromosome counts, pollen stainability, and seed‐setting ability are presented for 10 new Hemarthria altissima (Poir.) Stapf et C. E. Hubb accessions from Africa and one native Hemarthria sp . from Argentina. Root tip smears confirmed that the basic chromosome number of this genus is x = 9. Nine of the introductions are diploid, 2n = 18, and two are tetraploid, 2n = 36. Pollen stainability and seed set indicate that all 11 introductions may be included in an intrageneric breeding program.