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Intermediate and Pubescent Wheatgrass Complex in Native Collections from Eastern Turkey 1
Author(s) -
Mariam Emmanuel K.,
Ross James G.
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/cropsci1972.0011183x001200040023x
Subject(s) - herbarium , biology , agropyron , botany , taxon
Agropyron intermedium (Host) Beauv. and A. trichophorum (Link) Richt. have been distinguished on the basis of the first species having smooth glumes and lemmas, and the second being pubescent. This separation has broken down because both characters occurred within original introductions from Russia and are found even within selected varieties. This study was conducted on herbarium specimens and on progenies from plants open pollinated under natural conditions. Collections were made at 11 sites in Erzurum Valley in the vicinity of Ataturk University in Eastern Turkey to obtain information on the distribution of smooth and pubescent plants in naturally occurring colonies where the plants are native. Similar proportions of smooth and pubescent plants occurred irrespective of the location of the colonies, and segregation for pubescence occurred in families from both pubescent and smooth parents. It was concluded that the original introductions containing smooth and pubescent plants truly represented the native material and that the two taxa should be combined into a single species, A. intermedium (Host) Beauv.