Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
981 10 |
Ultima descărcare din IBN: 2023-11-22 14:09 |
Căutarea după subiecte similare conform CZU |
633.854.78:632.485.2 (1) |
Plante aromatice. Condimente. Plante aleaginoase. Plante colorante. Plante tanante. Plante medicinale (437) |
Boli ale plantelor. Dăunători și organisme vătămătoare pentru plante. Protejarea plantelor (985) |
SM ISO690:2012 DUCA, Maria, ŞESTACOVA, Tatiana, PORT, Angela, CUCEREAVÎI, Aliona, GISCA, Ion, TABĂRĂ, Olesea. Screening-ul germoplasmei de floarea-soarelui la rugină. In: Ştiinţa Agricolă, 2014, nr. 2, pp. 15-19. ISSN 1857-0003. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Ştiinţa Agricolă | ||||||
Numărul 2 / 2014 / ISSN 1857-0003 /ISSNe 2587-3202 | ||||||
|
||||||
CZU: 633.854.78:632.485.2 | ||||||
Pag. 15-19 | ||||||
|
||||||
Descarcă PDF | ||||||
Rezumat | ||||||
A key feature of sunflower commercial hybrids is the resistance to various diseases and pests, which excludes the use of chemical treatments and reduces negative environmental impacts. Rust is a fungal disease caused by Puccinia helianthi leading to significant yield losses. The molecular screening of rust resistance genes
offers the possibility of identifying parental forms and hybrids resistant to infection. In this study 42 sunflower genotypes (Rf paternal lines, maternal lines with cytoplasmic male sterility (CMS) and F1 commercial hybrids) were evaluated for the presence of the amplicon 950 pb associated with R1 gene, which confer resistance to the rust race 100. Molecular SCAR analysis (Sequence Characterized Amplified Regions) showed that the amplicon was not present at CMS lines indicating that these genotypes do not possess R1 gene. The fragment of 950 bp was found only in 13 genotypes: 10 paternal lines and three local commercial F1 hybrids (Nistru, Doina and Oscar). The data provide useful information to breeders for selecting parental combinations to create hybrids resistant to rust. |
||||||
Cuvinte-cheie Helianthus annuus, rezistenţă, Rugină, screening, Marker molecular |
||||||
|