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Zbornik - Društvo genetičara Srbije

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164 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Pos-47<br />

Subotica, 30. novembar - 4. decembar 2004.<br />

KORELACIJA PRINOSA I BROJA DANA IZMEÐU METLIÈENJA I<br />

SVILANJA (ASI) KAO POKAZATELJA TOLERANTNOSTI PREMA SUŠI<br />

KOD HIBRIDA KUKURUZA<br />

D. Bošev 1 , Sofija Pekiæ 2 i Violeta Anðelkoviæ 3<br />

1<br />

Fakultet za poljoprivredne nauke i hranu, Univerzitet «Æirilo i Metodije», Skoplje, R. Makedonija<br />

2<br />

Poljoprivredni fakultet, Univerzitet u Beogradu, Beograd<br />

3<br />

Institut za kukuruz «Zemun Polje», Beograd<br />

Trogodišnje ispitivanje vršeno je u poljskim uslovima u sušnom regionu Ovèeg Polja -<br />

Makedonija. Ispitivano je osam komercijalnih hibrida selekcionisanih u Institutu za<br />

kukuruz «Zemun Polje» i kompanije «Pioneer». Postavljena su dva poljska ogleda, u<br />

uslovima suvog ratarenja (suše) i navodnjavanja tokom vegetativnog perioda. Cilj je bio<br />

utvrðivanje korelacije prinosa zrna i broja dana izmeu metlièenja i svilanja (ASI).<br />

Proseèan prinos suvog zrna po hektaru u uslovima navodnjavanja bio je od 7.37 t/ha do<br />

12.1 t/ha. U sušnim uslovima, bez navodnjavanja, najviši prinos zrna iznosio je 4.58 t/ha,<br />

a najviši 3.27 t/ha.<br />

Prinos zrna ZP hibrida u uslovima navodnjavanja bio je u pozitivnoj korelaciji sa ASI (r<br />

= 0.91), a u uslovima suše u negativnoj (r = -0.97). Hibridi «Pioneer» imali su takoðe<br />

pozitivnu meðuzavisnost prinosa zrna i ASI u uslovima navodnjavanja (r = 0.83) i<br />

negativnu u uslovima suše (r = -0.89), što je u saglasnosti sa drugim istraivanjaima u<br />

uslovima suše.<br />

Dobijeni rezultati ukazuju na karakteristike i potencijal ispitivanih hibrida za uslove<br />

sušnih regiona.<br />

THE CORRELATION YIELD - ASI AS INDICATOR OF THE DROUGHT<br />

TOLERANCE OF SEVERAL MAIZE HYBRIDS<br />

In the period of three years, there has been established field investigation in the drought<br />

region of Ovce Pole - Macedonia. The research has been performed in eight commercial<br />

hybrids of maize, selected by Maize Research Institute «Zemun Polje» and «Pioneer».<br />

We used two field trials, one with irrigation and another without irrigation (drought) during<br />

vegetative period. The goal was to find out correlation between yield and ASI<br />

(Anthesis Silking Interval).<br />

Average yield of dry seed per hectare in the irrigated location was from 7,37 t/ha, up to<br />

12.1 t/ha. In the drought location, the highest yield was performed by ZP360 (4.58 t/ha),<br />

and the lowest by ZP599 (3.27 t/ha).<br />

The yield of ZP hybrids planted in the irrigated location, was in positive correlation to<br />

ASI (r = 0.91), but in the drought conditions, the correlation was negative (r = - 0.97).<br />

The Pioneer hybrids had also positive correlation (r = 0.83) in irrigated conditions,<br />

and negative (r = - 0.89) in drought conditions, so the relation to ASI is in accordance to<br />

previously reported results in drought conditions.<br />

These results indicate performance and potential of the investigated maize hybrids in the<br />

drought regions.

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