Utilization of pollen sterility in rye and triticale for ergot production
1997
Dotlacil, L. | Stehno, Z. | Bockova, R. (Vyzkumny Ustav Rostlinne Vyroby, Prague-Ruzyne (Czech Republic)) | Valik, J. | Bohac, J.
12 selected triticale genotypes were tested in terms of an amount of obtained of ergot [Claviceps purpurea] sclerotia per area unit and content of active ingradient - ergocristine. Spring triticale varieties produced greater amount of ergocristine per spike than winter triticale. The highest amount of active ingredient after inoculation with ergot was obtained from spring triticale Moloc. Of 18 CMS rye lines by ergotamine production, line R1 suited best for commercial utilization. This new CMS analog of rye R1 was tested in experimental and practical conditions and its biological and economic characteristics were compared with CMS analog. up to now exclusively used for commercial ergot production. CMS R1 gives lower and comparable yield of sclerotia, in terms of their better quality the yield of active ingredient is fully comparable, even higher. In seed production trial with CMS R1 about 23 % lower number of grains per spike was achieved compared with a fertile form R1. Sink capacity was not changed what gives possibilities to improve the seed yield by better cross pollination. Slightly reduced grain weight in CMS form (about 7 %) was not manifested in germinative capacity of seeds.
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