Premium
Stigma Removal Studies on Certain Accessions of Bothriochloa intermedia and Dichanthium annulatum 1
Author(s) -
Dewald Chester L.,
Harlan Jack R.
Publication year - 1961
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/cropsci1961.0011183x000100010006x
Subject(s) - geneticist , library science , biology , computer science , genetics
DURING the past several years, the Oklahoma Agricultural Experiment Station has grown and maintained a large experimental garden of native and introduced grasses belonging to the tribe Andropogoneae (3). Accessions from many parts of the world have been received and surveyed in an attempt to bring new germ plasm-into the pasture and range improvement program. Attempts to combine superior germ plasm by hybridization have resulted in varying degrees of maternal type progeny, and apomixis has been thoroughly demonstrated in the group (1, 2, 4, 5). Embryological studies have indicated the mechanism to be pseudogamous apospory (1, 2, 5). The effectiveness of various sources of pollen in stimulating seed formation has not been investigated in this group. The stigma removal technique developed by Warmke and Snyder (7, 8, 9) appeared to offer possibilities for investigating the relative efficiency of various sources of pollen in seed stimulation and for gaining some insight into the role of pollen in reproduction in both sexual and asexual forms and at different ploidy levels.