caa a22 4500 477134203 CHVBK 20180405111713.0 cr unu---uuuuu 170330e19970101xx s 000 0 eng 10.1023/A:1002936600262 doi (NATIONALLICENCE)springer-10.1023/A:1002936600262 Agronomic performance of crosses between Nordic and exotic barleys [Elektronische Daten] [Merja Veteläinen, Mia Suominen, Eero Nissilä] Exotic germplasm may be useful for the improvement of agronomic performance of barley breeding material. This study was conducted in order 1) to evaluate if it is possible to improve performance of Nordic barley breeding material by utilizing exotic germplasm sources (unadapted landraces and H. spontaneum), 2) to evaluate incorporation of exotic germplasm into a genetic base widely adapted to the agro-ecological conditions of the extreme Scandinavian north as well as to the base adapted to the conditions of the south of this geographical region, and 3) to evaluate whether an index composed of several traits corresponded to 'breeder's phenotypic evaluation' of the progenies. Earliness, straw length, number of ears/plant, yield/plant, seed shattering, persistence of awns and an index computed from these traits were studied in Swedish and Finnish 4-way crosses along with their adapted parents. Most of the crosses headed earlier than their adapted parents and none of the crosses outyielded the adapted parents. The most favorable frequency distributions for the index were found in the crosses with only cultivated barleys as parents. Transgressive segregates were also found in progenies with H. spontaneum parents. Incorporation of exotic barleys was most successful into the local genetic base. Comparisons between indices and breeder's phenotypic evaluation suggested reconsideration of evaluation methods early in parent development. Kluwer Academic Publishers, 1997 agronomic performance nationallicence barley nationallicence exotic germplasm nationallicence genetic resources nationallicence Hordeum vulgare nationallicence Hordeum spontaneum nationallicence Veteläinen Merja Department of Plant Breeding Research, The Swedish University of Agricultural Sciences, S - 268 31, Svalöv, Sweden aut Suominen Mia Department of Plant Biology, Plant and Tree Breeding, University of Helsinki, University of Helsinki, Viikki D, FIN - 00014, Finland aut Nissilä Eero Boreal Plant Breeding, Myllytie 8, FIN - 31 600, Jokioinen, Finland aut Euphytica Kluwer Academic Publishers 93/2(1997-01-01), 239-248 0014-2336 93:2<239 1997 93 10681 https://doi.org/10.1023/A:1002936600262 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002936600262 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Veteläinen Merja Department of Plant Breeding Research, The Swedish University of Agricultural Sciences, S - 268 31, Svalöv, Sweden aut NATIONALLICENCE 700 1- Suominen Mia Department of Plant Biology, Plant and Tree Breeding, University of Helsinki, University of Helsinki, Viikki D, FIN - 00014, Finland aut NATIONALLICENCE 700 1- Nissilä Eero Boreal Plant Breeding, Myllytie 8, FIN - 31 600, Jokioinen, Finland aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 93/2(1997-01-01), 239-248 0014-2336 93:2<239 1997 93 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer