Zbornik - Društvo genetičara Srbije

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156 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Pos-39 Subotica, 30. novembar - 4. decembar 2004. VARIJABILNOST I FAKTORSKA ANALIZA MORFOLOŠKIH I PRODUKTIVNIH OSOBINA VRSTA IZ RODA Amaranthus Vesna Vujaèiæ 1 , Marija Bodroa-Solarov 2 , T. Ðivanovic 1 i V. Pešiæ 1 1 Poljoprivredni fakultet, Beograd 2 Tehnološki fakultet, Novi Sad U trogodišnjem radu je ispitivano deset genotipova amarantusa. Ispitivane su morfološke i produktivne osobine - visina biljke, broj listova po biljci, duina srednjeg lista, širina srednjeg lista, masa lista po biljci, masa zrna po biljci i ukupan prinos zrna amarantusa. Analizirana je varijabilnost navedenih osobina i izvršena klasifikacija metodom glavnih komponenti. Varijabilnost u okviru pojedinih osobina je znaèajna i iznosi za visinu biljke od 93,18 cm (genotip 9 - A. cruentus) do 160,78 cm (genotip 1 - A. mantegazzianus); broj listova po biljci od 12,89 (genotip 10 - A. cruentus) do 23,46 (genotip 1 - A. mantegazzianus); duinu srednjeg lista od 14,77 cm (genotip 9 - A. cruentus) do 26,72 cm (genotip 1 - A. mantegazzianus); širinu srednjeg lista od 6,30 cm (genotip 9 - A. cruentus) do 14,46 cm (genotip 1 - A. mantegazzianus); masu lista po biljci od 94,05 g (genotip 3 - A. molleros) do 246,81 g (genotip 1 - A. mantegazzianus), masu zrna po biljci od 45,56 g (genotip 3 - A. molleros) do 67,55 g (genotip 1 - A. mantegazzianus) i za ukupan prinos zrna od 2,22 t/ha (genotip 3 - A. molleros) do 3,20 t/ha (genotip 1 - A. mantegazzianus). VARIABILITY AND FACTOR ANALYSIS OF MORPHOLOGICAL AND PRODUCTIVE CHARACTERISTICS OF SPECIES OF THE GENUS Amaranthus Through out three years of scientific researches, ten genotypes of amaranth were studied. Morphological and productive characteristics - plant height, foliage per plant, medium foliage length, medium foliage width, mass per plant, seed mass per plant were the subject of researches. Variability of these features was analyzed and classification by the method of major components conducted. Variability within specific features is significant and for the plant height it ranges between 93.18 cm (genotype 9 - A. cruentus) and 160.78 cm (genotype 1 - A. mantegazzianus); foliage per plant between 12.89 (genotype 10 - A cruentus) and 23.46 (genotype 1 - A. mantegazzianus); medium foliage length between 14.77 cm (genotype 9 - A. cruentus) and 26.72 cm (genotype 1 - A. mantegazzianus); medium foliage width between 6.30 cm (genotype 9 - A. cruentus) and 14.46 cm (genotype 1 - A. mantegazzianus); foliage mass per plant between 94.05 g (genotype 3 - A. molleros) and 246.81 g (genotype 1 - A. mantegazzianus) and seed mass per plant between 45.56 g (genotype 3 - A. molleros) and 67.55 g (genotype 1 - A. mantegazzianus).
IV-Pos-40 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 157 Subotica, 30. novembar - 4. decembar 2004. NASLEÐIVANJE VISINE STABLJIKE OZIME PŠENICE Veselinka Zeèeviæ, D. Kneeviæ, Danica Micanoviæ, M. Pavloviæ i D. Uroševiæ Institut za istraivanja u poljoprivredi «SRBIJA», Centar za strna ita, Kragujevac U radu je ispitivan naèin nasleðivanja, efekat gena, kombinacione sposobnosti i komponente genetièke varijanse za visinu stabljike kod èetiri sorte ozime pšenice (Srbijanka, Partizanka, KG-56 i PKB-111). Ukrštanje sorti je uraðeno po metodi dialela, a ispitivanja nasleðivanja izvršena su na biljkama F2 generacije na uzorku od 60 biljaka. U nasledivanju visine stabljike preovladavala je superdominacija i parcijalna dominacija. Utvrðene su visoko signifikantne razlike za opšte i posebne kombinacione sposobnosti, što znaèi da u nasleðivanju ovog svojstva znaèajnu ulogu imaju aditivna i neaditivna komponenta genetièke varijanse. Najbolje opšte kombinacione sposobnosti za visinu stabljike ispoljila je sorta KG-56, a najbolje posebne kombinacione sposobnosti pokazali su hibridi KG-56 x PKB-111, Srbijanka x PKB-111 i Partizanka x KG-56. Ustanovljeno je da glavni deo genetièke varijanse èini dominantna komponenta u nasleðivanju visine stabljike. U ekspresiji ovog svojstva preovladavali su dominantni u odnosu na recesivne gene. Ovo je potvrðeno frekvencijom dominantnih alela i odnosom ukupnog broja dominantnih prema recesivnim alelima. Genetièka analiza je pokazala da je u nasleðivanju visine stabljike došlo do superdominacije. THE INHERITANCE OF PLANT HEIGHT IN WINTER WHEAT Four winter wheat cultivars (Srbijanka, Partizanka, KG-56 and PKB-111) have been selected for diallel crossing in other to study the mode of inheritance, gene effect and genetic variance components for the plant height in F2 generation. Sixty plants of parents and F2 generation were used for analysis. The mode of inheritance was done on the basis of the significance of components of genetic variance and the regression analysis. The inheritance of plant height in the most crossing combinations was over dominant and partial dominance. The combining ability analysis was found to be highly significant, which means both additive and non-additive type of gene actions. The best general combining ability manifested KG-56 cultivar, and the best specific combining ability have shown hybrids KG-56 x PKB-111, Srbijanka x PKB-111 and Partizanka x KG-56. The genetic variance components, average degree of dominance and regression line indicated over dominance in the inheritance of plant height. The dominant alleles frequency was higher than recessive alleles frequency, which confirmed the ratio of dominant/recessive alleles.
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DRUŠTVO GENETIČARA SRBIJE SERBIAN
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III KONGRES GENETIÈARA SRBIJE Subo
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Uvodno predavanje Opening lecture
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I tematska oblast / I topic: Geneti
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ZAVRŠNO PREDAVANJE CLOSING LECTURE
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A Aksentijeviæ I. 194 Aleksiæ J.
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Zbornik - Društvo genetičara Srbije

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