- Tytuł:
- Male fertility restoration of rye crosses in the pampa cytoplasm.
- Autorzy:
- Kolasiñska, Irena
- Powiązania:
- https://bibliotekanauki.pl/articles/2198892.pdf
- Data publikacji:
- 2003-06-22
- Wydawca:
- Instytut Hodowli i Aklimatyzacji Roślin
- Tematy:
-
hybrid breeding
male sterility
restoration of male fertility
winter rye - Opis:
- Male fertility restoration of F1 crosses between male sterile lines (P lines) and restorers (R) was studied in 2000. Pollen fertility of 50 F1 crosses derived by crossing 10 P lines to 5 restorers was estimated. The degree of male sterility/fertility was assessed by visual anther score of single plants on a 1-9 scale, restorer indices and visual pollen shedding scores of plots on a 1-9 scale. @Abstract = Coefficients of correlation between the above fertility traits were calculated. The analysis of variance showed that the degree of male fertility of F1 crosses strongly depends on a restorer genotype, a P line genotype as well as on the P ´ R interaction. The restorer and P line genotypes were a major source of variation.A considerable range of pollen fertility was evident in the single crosses. The mean restorer index of F1 crosses ranged from 3,4 to 98,7%. The P lines under study were divided into three groups on the basis of mean restorer indices of their crosses with five restorers: easy, medium and difficult to restore. All the restorers tested, provide a sufficient restoration of male fertility of the F1 crosses with majority of the P lines. The new restorer, 330 R appeared to be more effective in restoration of pollen fertility than the other currently used lines
- Źródło:
-
Plant Breeding and Seed Science; 2003, 47; 33-37
1429-3862
2083-599X - Pojawia się w:
- Plant Breeding and Seed Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł