Studies on Genetic Enhancement of Sugarcane (Saccharum officinarum L.) Productivity for Organic Jaggery Production
| dc.contributor.advisor | B. M. Khadi | |
| dc.contributor.author | Somashekhar Guddadamath | |
| dc.date.accessioned | 2016-07-26T10:00:19Z | |
| dc.date.available | 2016-07-26T10:00:19Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | The present investigation was taken up to elucidate the information on the variability present in the component traits of cane, sugar and jaggery yield and the amount to which it is heritable. Inter and intra class correlation was also studied across generations. The genetic and molecular diversity to assess the contribution of characters towards the divergence to classify the clones was also studied. Further genotype x environment interaction was studied to assess the relative stability of sugarcane genotypes for productivity triaits of cane, sugar and jaggery yield. The GCV and PCV for total shoots, cane height, internodal length, number of millable canes (NMC), cane yield and HR brix%, were higher, whereas moderate variability was observed for cane girth and single cane weight (SCW). The association studies revealed that, single cane weight, number of millable canes and cane height were the strongest with cane yield. The path analysis shows that, NMC and SCW showed higher direct effect on cane yield. The repeatability studies indicated that NMC, SCW and HR brix% were significantly repeatable across generations. Diversity analysis indicated NMC, SCW and cane height contributed maximum to the total divergence. Molecular diversity using SSR markers detected 95.9 per cent polymorphism and primers NKS 6, 7, 23, 30, 32, 34 and 38 were particularly useful in diversity studies. The stability analysis for cane and jaggery yield revealed that the genotypes viz., SNK 07680 and SNK 07337 and SNK 07658 were stable across environments. Among the genotypes for jaggery quality parameters, SNK 07680 was significantly superior compared to Co 86032 followed by SNK 07337 and SNK 07658. SNK 07680 and SNK 07337 are non flowering across generations and locations, whereas SNK 07658 is very late to non flowering in all the locations studied for flowering behavior. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/69833 | |
| dc.publisher | UAS Dharwad | en_US |
| dc.sub | Genetics and Plant Breeding | |
| dc.these.type | Ph.D | |
| dc.title | Studies on Genetic Enhancement of Sugarcane (Saccharum officinarum L.) Productivity for Organic Jaggery Production | en_US |
| dc.type | Thesis | en_US |