Browsing by Author "Kusaksiz T."

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    Selection studies on mutant bread wheat (Triticum aestivum L.) populations in Turkey
    (Akademiai Kiado, 2009) Kusaksiz T.; Dere S.
    The effect of gamma irradiation on five common wheat cultivars which are all the spring cultivars, namely Gonen, Cumhuriyet, Ziyabey, Izmir and Basribey were studied. Various doses of gamma irradiation, i.e. (0-150-300 Gy) were applied to dry seed. The mutated populations were grown at two locations (Bornova and Alasehir) in the 2003–2004 and 2004–2005 growing season. A total of 100 single plants were selected from each mutant and control population in 2003–2004 growing season. Twenty-five percent selection pressure was applied. The progeny rows of the selected mutant plants were grown at two locations in 2004–2005 growing season. A second stage selection was applied in each progeny population and selected mutant lines were advanced to the micro yield testing. Genetic advance at each stage of selection was estimated for single plant yield, and expected progeny means for plot yield was estimated. In certain mutant populations, heritability and phenotypic standard deviation values, genetic gains were higher than control population. The progeny means of the certain mutant populations were higher when compared with control populations as well. © 2009, Akadémiai Kiadó, Budapest.
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    Adaptability of some new maize(zea mays l.) cultivars for silage production as main crop in mediterranean environment
    (2010) Kusaksiz T.
    This research was carried out to determine the adaptability cultivars for silage product??on as main crop. The experiment was conducted at Alasehir county of Manisa province in western Turkey in 2006 and 2007. The varieties tested are Varenne, C-955, AG-92150, AG-92149, DKC-6022, MF-714, Tietar, AG-92148, Mitic, DKC-6610, DKC- 6842, Ada-523, Goldavid, Doge and Vero. Significant differences were detected among the varieties for plant height, number of green leaves per plant, stem diameter, dry matter content(%), dry matter yield and herbage yield traits. Average plant height of maize genotypes varied between 173.6 and 238.3 cm; number of green leaves per plant between 10.8 and 14.1; stem diameter between 2.0 and 2.5 cm; dry matter (%) between 34.28 and 53.70; dry matter yield between 20.95 and 38.54 t ha-1; herbage yield between 39.02 t ha-1 and 82.45 t ha-1. We concluded that C-955, Goldavid, Mitic and AG-92150 cultivars were superior than other cultivars for herbage and dry matter yield traits, respectively.