Zbornik - Društvo genetičara Srbije

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164 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Pos-47 Subotica, 30. novembar - 4. decembar 2004. KORELACIJA PRINOSA I BROJA DANA IZMEÐU METLIÈENJA I SVILANJA (ASI) KAO POKAZATELJA TOLERANTNOSTI PREMA SUŠI KOD HIBRIDA KUKURUZA D. Bošev 1 , Sofija Pekiæ 2 i Violeta Anðelkoviæ 3 1 Fakultet za poljoprivredne nauke i hranu, Univerzitet «Æirilo i Metodije», Skoplje, R. Makedonija 2 Poljoprivredni fakultet, Univerzitet u Beogradu, Beograd 3 Institut za kukuruz «Zemun Polje», Beograd Trogodišnje ispitivanje vršeno je u poljskim uslovima u sušnom regionu Ovèeg Polja - Makedonija. Ispitivano je osam komercijalnih hibrida selekcionisanih u Institutu za kukuruz «Zemun Polje» i kompanije «Pioneer». Postavljena su dva poljska ogleda, u uslovima suvog ratarenja (suše) i navodnjavanja tokom vegetativnog perioda. Cilj je bio utvrðivanje korelacije prinosa zrna i broja dana izmeu metlièenja i svilanja (ASI). Proseèan prinos suvog zrna po hektaru u uslovima navodnjavanja bio je od 7.37 t/ha do 12.1 t/ha. U sušnim uslovima, bez navodnjavanja, najviši prinos zrna iznosio je 4.58 t/ha, a najviši 3.27 t/ha. Prinos zrna ZP hibrida u uslovima navodnjavanja bio je u pozitivnoj korelaciji sa ASI (r = 0.91), a u uslovima suše u negativnoj (r = -0.97). Hibridi «Pioneer» imali su takoðe pozitivnu meðuzavisnost prinosa zrna i ASI u uslovima navodnjavanja (r = 0.83) i negativnu u uslovima suše (r = -0.89), što je u saglasnosti sa drugim istraivanjaima u uslovima suše. Dobijeni rezultati ukazuju na karakteristike i potencijal ispitivanih hibrida za uslove sušnih regiona. THE CORRELATION YIELD - ASI AS INDICATOR OF THE DROUGHT TOLERANCE OF SEVERAL MAIZE HYBRIDS In the period of three years, there has been established field investigation in the drought region of Ovce Pole - Macedonia. The research has been performed in eight commercial hybrids of maize, selected by Maize Research Institute «Zemun Polje» and «Pioneer». We used two field trials, one with irrigation and another without irrigation (drought) during vegetative period. The goal was to find out correlation between yield and ASI (Anthesis Silking Interval). Average yield of dry seed per hectare in the irrigated location was from 7,37 t/ha, up to 12.1 t/ha. In the drought location, the highest yield was performed by ZP360 (4.58 t/ha), and the lowest by ZP599 (3.27 t/ha). The yield of ZP hybrids planted in the irrigated location, was in positive correlation to ASI (r = 0.91), but in the drought conditions, the correlation was negative (r = - 0.97). The Pioneer hybrids had also positive correlation (r = 0.83) in irrigated conditions, and negative (r = - 0.89) in drought conditions, so the relation to ASI is in accordance to previously reported results in drought conditions. These results indicate performance and potential of the investigated maize hybrids in the drought regions.
IV-Pos-48 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 165 Subotica, 30. novembar - 4. decembar 2004. HEMIJSKI SASTAV ZRNA KUKURUZA RAZLIÈITIH GRUPA ZRENJA I USLOVA GAJENJA D. Bošev 1 , G. Vasilevski 1 i Z. Bošev 2 1 Fakultet za poljoprivredne nauke i hranu, Univerzitet «Æirilo i Metodije», Skoplje, R. Makedonija 2 Ministarstvo za ekologiju i fizièko planiranje, Skoplje, R. Makedonija Ovo istraivanje je obavljeno tokom tri godine u dva poljska ogleda, u uslovima sa i bez navodnjavanja. Ispitivano je osam hibrida kukuruza koji pripadaju razlièitim FAO grupama zrenja. Cilj istraivanja bio je utvrðivanje razlike u duini vegetacije u razlièitim uslovima gajenja i u hemijskom sastavu zrna kukuruza. Najveæe promene u hemijskom sasatavu zrna, u zavisnosti od grupe zrenja i navodnjavanja, utvrðene su za sadraj proteina i šeæera. Sadraj proteina bio je najviši za hibrid ZP480 i u uslovima suše (13.6%) i u navodnjavanju (12.2%). Sadraj šeæera u navodnjavanju bio je najnii kod hibrida ZP360 (67.23%), a najviši kod hibrida ZP599 (69.3%). U uslovima suše najviši sadraj šeæera bio je kod hibrida ZP360 (69.69%), a najnie vrednosti kod ZP599 (65.72%). Ovakva variranja u sadraju šeæera i proteina su posledica reakcije hibrida na razlièite uslove gajenja i osetljivosti prema suši. Rezultati mogu biti od znaèaja za preporuku hibrida u razlièitim regionima u Republici Makedoniji. CHEMICAL CONTENT OF THE MAIZE KERNEL IN DIFFERENT MATURITY GROUPS AND GROWING CONDITIONS This investigation has been established in two trial fields, during three years, where have been used irrigated field and non-irrigated field. The research has been performed in eight hybrids of maize (ZP360, ZP480, ZP599, ZP677, Stira, Colomba, Cecilia, and Constanza), which belongs to different maturity groups. The aim of this research was to identify duration of vegetative period in different growing conditions and to investigate chemical content of kernels. Regarding chemical content of basic metabolites into maize seed, the biggest variations were detected for protein and sugar content. The percent of proteins was highest in ZP480, in both the irrigated (12,2%) and drought (13,6%) location. The content of sugars in irrigated locations was lowest in ZP360 (67,23%) and highest in ZP599 (69,3%). In the drought location highest percent of sugars was noted in ZP360 (69,69%), while lowest figure noted in ZP599 (65,72%). These variations are results of reaction of the hybrids to different cultivated conditions and their susceptibility to drought. The results of this paper could help to recommend hybrids for different regions of the agricultural complex in Republic of Macedonia.
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DRUŠTVO GENETIČARA SRBIJE SERBIAN
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Uvodno predavanje Opening lecture
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ZAVRŠNO PREDAVANJE CLOSING LECTURE
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Zbornik - Društvo genetičara Srbije

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