Interspecific Hybridisation in Sorghum
| dc.contributor.advisor | Suma Bai, D I | |
| dc.contributor.author | Jithesh, V G | |
| dc.contributor.author | KAU | |
| dc.date.accessioned | 2020-11-11T08:47:48Z | |
| dc.date.available | 2020-11-11T08:47:48Z | |
| dc.date.issued | 2005 | |
| dc.description | PG | en_US |
| dc.description.abstract | A study on ‘Interspecific hybridization in Sorghum’ was carried out in the Department of Plant Breeding and Genetics, College of Agriculture, Vellayani during 2003-2004 with the objective of developing sorghum-sudan grass hybrids with high fodder yield potential and better quality. Five superior accessions of sorghum viz., GD 65174-1,GD65174-2, GD 65195, GD 65239 and Acc. No. 846 (lines) with high yield potential and better palatability and three accessions of sudan grass viz., Jhansi local, SSG-59-3 and IS-720 (testers) with high tillering ability were crossed in a Line x Tester mating design to obtain 15 hybrid combinations. The lines, testers and their hybrids were evaluated along with a check COFS-29 in a replicated field trial for mean performance, combining ability and heterosis. Observations on plant height, tiller number per plant, stem girth, internodal length, leaf/stem ratio, leaf number per plant, leaf weight per plant, days to 50 per cent flowering, green fodder yield, dry fodder yield, crude protein content, crude fibre content and HCN content were recorded. Significant differences among treatments were observed for all characters. Significant differences among crosses were observed for all characters except tiller number per plant. General and specific combining ability variances and effects were studied. The magnitude of SCA variance alone was significant suggesting the predominance of dominance gene action in controlling these traits. Based on mean performance and gca effects, Acc. No. 846 was identified as the best general combiner among lines and SSG-59-3 among testers. The crosses, GD 65195 x IS-720 and Acc. No. 846 x SSG-59-3 were found to be promising for green fodder yield and its component traits based on mean performance, sca effects and standard heterosis. Hence these crosses can be advanced for further trials for developing superior sorghum-sudan grass hybrid varieties. | en_US |
| dc.identifier.citation | 172441 | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810154923 | |
| dc.keywords | Hybridisation | en_US |
| dc.language.iso | English | en_US |
| dc.publisher | Department of Plant Breeding and Genetics, College of Agriculture, Vellayani | en_US |
| dc.sub | Plant Breeding | en_US |
| dc.theme | Hybridisation in Sorghum | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Interspecific Hybridisation in Sorghum | en_US |
| dc.type | Thesis | en_US |