Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
1032 12 |
Ultima descărcare din IBN: 2024-01-13 15:13 |
Căutarea după subiecte similare conform CZU |
633.15:631.527 (49) |
Cereale. Recolte de grâne (681) |
Lucrări agricole (1234) |
SM ISO690:2012 ŢÎGANAŞ, Vasile, ŢÎGANAŞ, Domnica. Crearea şi evaluarea materialului iniţial pentru ameliorarea porumbului amilopectinic
. In: Ştiinţa Agricolă, 2013, nr. 2, pp. 13-16. ISSN 1857-0003. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Ştiinţa Agricolă | ||||||
Numărul 2 / 2013 / ISSN 1857-0003 /ISSNe 2587-3202 | ||||||
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CZU: 633.15:631.527 | ||||||
Pag. 13-16 | ||||||
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Rezumat | ||||||
This research presents the results of a long-term study of the new wx1 maize inbred lines (level S4 – S6) developed by us using the backcross method and standard method with multiple self-pollinations and successive selection of promising maize genotypes. The new biological material was represented by 160 maize lines which were systematized in four botanical varieties, taking into consideration endosperm consistency, as well as grain and rachis colour. Some maize genotypes have characteristics that don’t correspond to the known botanical taxa. The name of two new botanical taxa was suggested: alborubraceratina, which includes genotypes with white grain and
red rachis and luteorubraceratina, which includes genotypes with yellow grain and red rachis. As the result of assessing the general combining ability 10 lines of maize, the most valuable ones, were selected. These lines show minimal depression and basically are homozygous according to plant, ear and grain characteristics and they are resistant to adverse environmental conditions. According to biochemical properties these lines have a high starch content, from 70,1% up to 73,2%. The starch, in its turn, consists only of amylopectin, a polymer with a branched molecule, and superior physical and chemical properties than starch from amylase. The newly developed lines
contribute to increase the genetic diversity of wx1 maize, to synthesize competitive hybrids with valuable technological
and food features and can be used as initial material for the improvement of waxy maize. |
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Cuvinte-cheie Zea mays, Porumb ceros, Capacitate combinativă, Caracteristici agronomice, Linii consangvinizate, Amidon, calitate |
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