Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
IV-Pos-22 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 139<br />
Subotica, 30. novembar - 4. decembar 2004.<br />
ANALIZA EFEKTA GENA U NASLEÐIVANJU BROJA ZRNA<br />
PO KLASU KOD HIBRIDA JECMA<br />
Milomirka Madiæ, M. Kuburoviæ i Marija Kraljeviæ-Balaliæ 1<br />
Agronomski fakultet, Èaèak<br />
1<br />
Poljoprivredni fakultet, Novi Sad<br />
U dialelnom ukrštanju, bez reciproènih pet divergentnih genotipova jeèma (Vada,<br />
Ðerdap, NS-293, Jagodinac i Sladoran) regresionom analizom varijanse i kovarijanse<br />
prouèavan je naèin nasleðivanja i efekat gena za broj zrna po klasu.<br />
Regresionom VrWr i WrW’ analizom utvrðeno je odsustvo interalelne interakcije, što<br />
opravdava primenu odabranog modela. U nasleðivanju broja zrna po klasu regresija je<br />
ukazala na dominantan efekat gena, kao i na nejednak raspored dominantnih i recesivnih<br />
gena kod odabranih genotipova. Najveæi broj dominantnih gena za broj zrna po klasu<br />
imaju genotipovi Jagodinac, Vada i NS-293, dok recesivnih Ðerdap i Sladoran.<br />
Dobijeni rezultati ukazuju da kod dvorednih genotipova jeèma veæi broj dominantnih<br />
gena dovodi do poveæanja broja zrna po klasu, a poveæan sadraj recesivnih gena ima<br />
suprotan efekat.<br />
THE ANALYSIS OF GENE EFFECT IN THE INHERITANCE OF KERNEL<br />
NUMBER PER SPIKE IN BARLEY HYBRIDS<br />
In diallel crossing excluding reciprocal ones, the five divergent genotypes of barley<br />
(Vada, Ðerdap, NS-293, Jagodinac and Sladoran) were involved and the mode of inheritance<br />
and gene effect studied using the regression analysis of variance and covariance for<br />
the number of kernels per spike.<br />
The absence of interallel interaction was established through the regression analysis<br />
VrWr and WrW’ which justified the application of the model chosen. In the inheritance<br />
of of the number of kernels per spike, the regression pointed to the dominant gene effect<br />
as well as to the unequal distribution of the dominant and recessive genes in the genotypes<br />
chosen. While the genotypes Jagodinac,Vada and NS-293 had the highest number<br />
of the dominant genes , those of Ðerdap and Sladoran had the highest number of the recessive<br />
ones for the number of kernels per spike.<br />
The obtained results denoted that, in two-rowed genotypes, the higher number of dominant<br />
genes had led to a larger number of kernels per spike, whereas the higher number of<br />
the recessive genes had brought about the opposite effect.