Refine your search
Collections
Co-Authors
Journals
Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Athoni, B. K.
- Genetic Analysis of Heterosis for Seed Yield and its Components in Sunflower (Helianthus annuus L.)
Abstract Views :186 |
PDF Views:0
Authors
B. K. Athoni
1,
C. Nandini
2
Affiliations
1 All India Co-Ordinated Research Project on Sunflower, Zonal Agricultural Research Station, U.A.S., G.K.V.K., Bengaluru (Karnataka), IN
2 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), IN
1 All India Co-Ordinated Research Project on Sunflower, Zonal Agricultural Research Station, U.A.S., G.K.V.K., Bengaluru (Karnataka), IN
2 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), IN
Source
Asian Journal of Bio Science, Vol 7, No 1 (2012), Pagination: 77-83Abstract
A study was undertaken to assess the magnitude of heterosis involving seventeen inbred lines of sunflower. The inbred comprised of five new male sterile lines and twelve diverse restorer lines (six branching and six non-branching) which were crossed in all possible combinations. The resulting 60 F1 hybrids along with their parents were studied for the extent of heterosis during summer 2006 for nine characters by adopting line × tester analysis, considerable average heterosis was observed for all characters studied. Highest magnitude of average heterosis was observed for seed yield per plot (150.34) followed by seed yield per plant (118.86), head diameter (26.79), plant height (15.32), thousand seed weight (7.49) and oil content (2.13) for the characters days to 50 per cent flowering, the hybrids recorded negative average heterosis. Percentage contribution of component characters, viz., thousand seed weight, plant height and head diameter towards expression of heterotic effect for seed yield was to the extent of 15.06, 30.82 and 53.86 per cent, respectively.Keywords
Heterosis, Sunflower, Inbred Lines, Line × Tester Analysis.- Performance of Branching and Non-Branching Restorer Lines in Producing Heterotic Hybrids of Sunflower (Helianthus annuus L.)
Abstract Views :163 |
PDF Views:0
Authors
B. K. Athoni
1,
C. Nandini
1
Affiliations
1 All India Co-ordinated Project on Sunflower, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), IN
1 All India Co-ordinated Project on Sunflower, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), IN
Source
Asian Journal of Bio Science, Vol 7, No 1 (2012), Pagination: 101-105Abstract
To know the performance of branching and non branching restorer lines of sunflower in producing high yielding and high oil content hybrids, a study was undertaken at University of Agricultural Sciences, Dharwad to assess the magnitude of heterosis involving seventeen inbred lines of sunflower. The inbred comprised of five new male sterile lines and twelve diverse restorer lines (six branching and six non-branching) which were crossed in all possible combinations during Kharif-2005. The resulting 60 F1 hybrids along with their parents were studied for the extent of Heterosis during Summer 2006 for nine characters by adopting line × tester analysis, considerable average heterosis was observed for all characters studied. Highest magnitude of average heterosis was observed for seed yield per plot (150.34) followed by seed yield per plant (118.86), head diameter (26.79), plant height (15.32), thousand seed weight (7.49) and oil content (2.13) for the characters days to 50 per cent flowering, the hybrids recorded negative average heterosis. Percentage contribution of component characters, viz., thousand seed weight, plant height and head diameter towards expression of heterotic effect for seed yield was to the extent of 15.06, 30.82 and 53.86 per cent, respectively.Keywords
Heterosis, Sunflower, Branching, Non Branching, Line × Tester Analysis.- Association Analysis, Genetic Variability and Genetic Diversity Studies in Soybean [Glycine max (L.) Merrill]
Abstract Views :253 |
PDF Views:0
Authors
Affiliations
1 All India Coordinated Research Project on Sunflower, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), IN
1 All India Coordinated Research Project on Sunflower, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), IN