Zbornik - Društvo genetičara Srbije

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146 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Pos-29 Subotica, 30. novembar - 4. decembar 2004. MORFOANATOMSKE KARAKTERISTIKE ÈETINA RAZLIÈITIH FENOGRUPA OMORIKE Jelena Milovanoviæ, Mirjana Šijaèiæ-Nikoliæ, Dragica Vilotiæ, V. Ivetiæ Šumarski fakultet, Beograd Panèiæeva omorika (Picea omorika Panè./Purkyine), kao endemska vrsta Balkanskog poluostrva i tercijarni relikt, veoma je znaèajna za istraivanja u oblasti šumarstva i pejzane arhitekture. U cilju proizvodnje selekcionisanog semena ove vrste, 1986. godine podignuta je generativna semenska plantaa iznad sela Godovik, SO Poega, koja obuhvata 50 linija polusrodnika razvrstanih u sedam fenogrupa. U ovom radu, izvršena je analiza morfoanatomskih karakteristika èetina, na uzorku od po pet stabala u okviru pet fenogrupa, što predstavlja korak napred u istraivanjima vezanim za Panèiæevu omoriku. Rezultati ovog rada predstavljaju znaèajnu polaznu osnovu za dalja istraivanja, u cilju utvrðivanja varijabilnosti strukture èetina razlièitih fenogrupa i moguænosti primene morfoanatomskih karakteristika èetina kao parametra pri proceni obilnosti uroda i produkcije biomase èetina za potrebe farmaceutske i kozmetièke industrije. MORPH - ANATOMICAL CHARACTERISTICS OF SERBIAN SPRUCE NEEDLES FROM DIFFERENT PHENOGROUPES Serbian spruce (Picea omorika Panè./Purkyine), Balkan endemic species and tertiary relict, have a great significance in forestry research and landscape architecture. Serbian spruce seed orchard at Godovik was established in 1986, from 50 half-sib lines divided in seven phenogroupes. On phenogroupes level, within five genotypes sample, applied method in this study was to analysis morph - anatomic characteristics of needles, which is a step forward in Serbian spruce research. The results of this study made very important starting point for further research aimed to estimate variability of needles structure from different phenogroups, with possible application of needles morph - anatomical characteristics as parameter for estimate crop and needles biomass production for pharmaceutical and cosmetics industry needs.
IV-Pos-30 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 147 Subotica, 30. novembar - 4. decembar 2004. SELEKCIJA Azotobacter chroococcum – PUT DO MIKROBIOLOŠKOG ÐUBRIVA ZA ŠEÆERNU REPU Nastasija Mrkovaèki, Sneana Mezei, L. Kovaèev i N. Èaèiæ Nauèni institut za ratarstvo i povrtarstvo, Novi Sad Znaèajan doprinos plodnosti zemljišta i odrivoj poljoprivrednoj proizvodnji potièe od slobodne fiksacije atmosferkog azota. Više vrsta bakterija, slobodnih azotofiksatora, a meðu njima i vrste Azotobactera su dale pozitivan odgovor inokulisanih biljaka. Kod razlièitih biljnih vrsta – pšenice, kukuruza, suncokreta, šeæerne repe, paradajza inokulacija Azotobacterom uticala je ne samo na poveæanje prinosa veæ i na poboljšanje njegovog kvaliteta. Rezultati ovih istraivanja otvorili su pitanje moguænosti selekcije sojeva za odreðenu biljnu vrstu. U ovim ispitani su sojevi Azotobacter chroococcum u èistoj kulturi. Testirano je niz osobina: aktivnost nitrogenaze, rezistentnost na razlièite pesticide i njihove razlièite koncentracije, zatim uticaj temperature na rast sojeva, uticaj pilete šeæerne repe na rast, uticaj razlièitih nivoa azota u podlozi kao i uticaj sojeva na kaluse šeæerne repe. Ispitane osobine sojeva omoguæile su izbor – selekciju dobrih sojeva (od 20 do 12, i od 8 do 5 sojeva) koji su se pokazali kao najbolji za buduæu uspešnu zajednicu sa šeæernom repom. U daljim ispitivanjima sojeva Azotobacter chroococcum u zajednici sa biljkom šeæerne repe u staklari i u polju odabrali smo tri soja Azotobacter chroococcum – kao najefektivnije za gajenje šeæerne repe. Ovi sojevi èine bazu za proizvodnju mikrobiološkog ðubriva za šeæernu repu. SELECTION OF Azotobacter chroococcum – A WAY TO MICROBIOLOGICAL FERTILIZER FOR SUGARBEET Fixation of atmospheric nitrogen contributes significantly to soil fertility and indirectly to sustainable agriculture. Several free nitrogen-fixing bacteria including Azotobacter species have bene observed to elicit a positive response of inoculated plants. In different plant species – wheat, corn, sunflower, sugarbeet, tomato – inoculation with Azotobacter increased not only crop yield but also crop quality. This study has been initiated to assess possibilities of selecting bacterial strains for specific crops. In this study, Azotobacter chroococcum strains have been tested in pure culture, for the following characteristics: nitrogenase activity, resistance to various pesticides and their different concentrations, effect of temperature on bacterial growth, effect of sugarbeet pelleting mass on bacterial growth, effect of different nitrogen levels in the substrate and the effect of bacterial strains on sugarbeet calli. Based on their performance, good strains have been selected (from 20 to 5 strains) for combining with sugarbeet. Of the Azotobacter chroococcum strains that were subsequently grown in association with sugarbeet plants in the greenhouse and in the field, three were selected as most effective for combining with sugarbeet. These strains will be used for the production of a microbiological fertilizer for sugarbeet.
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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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Stanojeviæ B. 223 Stanojeviæ J. 2
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Zbornik - Društvo genetičara Srbije

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