| 5. T. sphaerococcum var. hexa-rubiginosum. Plantae spicis
ruberis impubibus, aristis curtis rubris, granis rubris. Bearded and glabrous
ear, red glumes with red awns and red grains. It is obtained by crossing
sphaerococcum mutants No 613 with initial variety Sadovska ranozreika 2.
6. T. sphaerococcum var. hexa-jakubzinerii. lantae spicis ruberis pubibus, spicis non aristis, granis rubris. Beardles and pubescent ear, red glumes, red grains (Fig. 1, 2). It is obtained by crossing sphaerococcum mutant No 6512 with initial variety Sadovska ranozreika 2. This mutant is characterized by some starility (up to 10%), probably due to structural changes in the karyotype. In addition to the typical characters for T. sphaerococcum Perc., (shortened stem with erect habit, upright disposition and shortened leaves, hemispherical ear glumes and kernels in them) the new varieties described possessed also high protein content and some important amino acide as lysin and tryptophan. The identification and localization of sphaerococcum gen/s/in the new varieties is in progress. The new sphaerococcum varieties described in T. aestivum are of certain interest for they enrich the botanical and genetical diversity of T. sphaerococcum Perc. Literature Cited DOROFEEV, V.F. and O.N. KOROVINA 1979. Fllora of cultivated Plants Wheat, I. 269-277. GANDILDAN, P.A. 1980. Determiner to the wheats, aegilops, ryes and barley, 286. GEORGIEV, S. 1976. EWS-induced mutants of the sphaerococcum type in T. aestivum L. Genetics and Plant Breeding, 9, 218-227. |
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