Zbornik - Društvo genetičara Srbije

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158 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Pos-41 Subotica, 30. novembar - 4. decembar 2004. KOMBINACIONE SPOSOBNOSTI NASLEÐIVANJA VISINE PRVE MAHUNE NEKIH LINIJA BORANIJE (Phaseolus vulgaris L.) M. Zdravkoviæ, Jasmina Zdravkoviæ, Ljiljana Stankoviæ i N. Pavloviæ Institut «SRBIJA», Centar za povrtarstvo, Smederevska Palanka Visina formiranja prve mahune je vana sortna osobina od koje zavisi moguænost mehanizovanog ubiranja useva boranije, što je osnova proizvodnje ove biljne vrste za prehrambenu i konzervnu industriju. Sorte koje nisko formiraju prve mahune, pri mehanizovanoj etvi, usled nedovoljne visine, bivaju ošteæene. U ispitivanje su ukljuèene se 6 divergentne roditeljske linije za proces selekcije na poveæanje visine formiranja prve mahune. Za utvrðivanje opštih (OKS) i posebnih kombinacionih sposobnosti (PKS) pojedinih linija korišæen je matematièki metod 2, model 1 (Grifing 1956). Vrednost parametra su utvrðivani u F1 iF2generaciji potomstva. Analiza kombinacionih sposobnosti pokazuje delovanje aditivnih i dominantnh genskih efekata. Šumadinka x Zorka predstavljaju najbolju kombinaciju za dalji proces selekcije na poveæanje visine prve mahune. COMBINING ABILITIES OF INHERITING FIRST POD HEIGHT OF SOME FRENCH BEAN LINES (Phaseolus vulgaris L.) First pod height is an important characteristic of a cultivar, especially for French bean since it determines the mechanical harvesting. Cultivars with low first pod height may be cut, damaged or not harvested by mechanical harvesting. In our investigation six different genotypes were used for examination of the first pod height on French beans and diallel analysis. The result was obtained by using method 2 model 1 (Griffing 1956) for analysis of combining abilities. The mode of inheritance was different, as the results showed - from intermediate to super dominance, for both generations (F1 and F2). Analysis of combining abilities showed both influence of additive and dominant gene effects. Combination Šumadinka x Zora is suitable for further breeding for first pod height.
IV-Pos-42 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 159 Subotica, 30. novembar - 4. decembar 2004. SAZREVANJE I STARENJE-PROPADANJE PLODOVA PARADAJZA RIN, U I RIN/U GENETSKE KONSTITUCIJE Jasmina Zdravkoviæ, . Markoviæ, Ljiljana Stankoviæ, M. Zdravkoviæ i M. Damjanoviæ Institut «SRBIJA», Centar za povrtarstvo, Smederevska Palanka Inhibitor sazrevanja (rin) gen predstavlja spontani recesivni mutant koji menja aspekte sazrevanja ploda, a najznaèajniji, sintezu karotenoida posebno likopina. Takoðe usporava starenje plodova. Paradajz spada u biljke koje imaju katakteristièni vrhunac (pik) prilikom sazrevanja plodova. Genotipovi paradajza homozigoti za rin gen nemaju ovaj vrhunac u sazrevanju, tako da izostaje produkcija etilena i crvena likopinska boja. Za potrebe ispitivanja procesa sazrevanja, korišæeni su materijali iz završnih ciklusa selekcije paradajza: èista linija S-49 (genetske konstitucije u/u, uniformnog sazrevanja), linija hom 4 (rin/rin, homozigot za ripening inhibitor) i hibridna kombinacija 449 F1 (u/rin, heterozigot za ripening inhibitor). Plodovi sa uniformnim sazrevanjem i hibridi sazrevali su isto vreme dok homozigoti za rin gene nisu sazrevali. Etilen stimuliše razvoj ute boje u rin plodovima stimuliše pojavu likopina Posle tretmana etefonom (0.1%) (etilen) od plodova sa uniformnim sazrevanjem utvrðeno je bre propadanje, kod hibrida je utvrðen dui period izdrljivosti, odnosno sporije propadanje. Kod rin homozigota nije dobijena promena boje, ali su plodovi propadali ubrzanije u odnosu na netretiranu varijantu. Tretman etilenom ubrzavao je procese sazrevanja, ali i starenja plodova paradajza. Prolongacija sazrevanja kao posledica delovanja rin gena svrstava dobijene hibride u kasniju grupu sazrevanja, èime se gubi na ranostasnosti. S druge, strane dobija se na èvrstini plodova i na «shef life», koji omoguæava dui transport i skladištenje, a ukoliko se ubiraju zeleni plodovi i na koordiniranom sazrevanju prema potrebama trišta. Cilj ispitivanja je bio da se utvrdi ponašanje u sazrevanje rin heterozigota, kao i reakcija genotipova na tretman etrelom u cilju ublaavanja ekstremnih vrednosti kasnog sazrevanja. MATURING AND SENESCENCE OF RIN, U AND RIN/U TOMATO FRUITS Ripening inhibitor (rin) gene is spontaneous recessive mutant which changes fruit ripening aspects (most important synthesis of carotene, especially lycopene). It also delays fruit senescence. Tomato is a vegetable crop with specific maturing climax (pik). Tomato genotypes homozygote for rin gene does not have this maturing climax, so the ethylene production and red, lycopene colour does not appear. In order to research the maturing process material from the final tomato selection cycle was used: pure line S-49 (genetic constitution u/u, with uniform ripening), line hom 4 (rin/rin, homozygote with ripening inhibitor) and hybrid combination 449 F1 (u/rin, heterozygote for ripening inhibitor). Fruits with uniform ripening and hybrids ripened simultaneously, while homozygote with rin gene did not ripe at all. Ethylene stimulates the appearance of yellow colour in rin fruits and the lycopene production. After treatment with ETEFON (0.1%) (Ethylene) fruits with uniform ripening senescence more quickly, while hybrids senescence slowly. Rin homozygotes did not change colour, but the fruits senescence more quickly comparing to control. Ethylene treatment speeded the maturing and senescence process in tomato fruits. Extended maturing process as a result influence of rin gene, puts the created hybrids in late maturing tomatoes. On the other hand, the firmness of fruits is improved as well as the «shelf life», which enables longer transportation and storing, coordinated maturing according to market demands. The aim was to research the maturing process of rin heterozygote, and the reaction of some genotypes to treatment with ETREL (Ethylene) in order to decrease extremely late maturing.
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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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