Crop Improvement and Nutrient Management Studies in Marigold (Tagetes spp.)
| dc.contributor.advisor | Dharmatti, P.R. | |
| dc.contributor.author | Latha S. | |
| dc.date.accessioned | 2021-11-07T09:10:18Z | |
| dc.date.available | 2021-11-07T09:10:18Z | |
| dc.date.issued | 2017-06 | |
| dc.description.abstract | Marigold genotypes were evaluated at New orchard, Department of Horticulture UAS, Dharwad, during 2015-2016, to study the variability and genetic divergence and it was also aimed to generate variability through mutation studies using gamma rays and to develop production technology through Integrated Nutrient Management (INM). The results revealed that, the genotype Double Orange was appreciated for growth, flower quality and yield attributes, high heritability coupled with genetic advance over mean was observed for most of the traits. The genetic divergence studies, grouped twenty six genotypes of marigold into seven clusters. Among 26 genotypes, Double Orange and Pusa Basanti Gainda formed single genotype clusters, which made them so divergent from others. Based on this experiment the genotype Double Orange was used for mutation and INM studies. Mutation studies indicated that, germination and survivability percentage was decreased with increase in gamma rays dosage, where as lethality increased with increasing doses of gamma rays. Higher co-efficient of variation for majority of the vegetative and flower characters was at higher doses of 500 and 600 Gy gamma treated mutants population. Further, these higher doses have resulted in maximum number of chlorophyll mutants with higher frequency of 3.14 and 3.15 % (500 and 600 Gy, respectively). The treatment of higher doses also resulted in maximum number of morphological mutants. and they were evaluated further on large scale in M3 generation. In INM studies, application of plants with 50 % RDF + vermicompost equivalent to 50 % RD'N' + poultry manure equivalent to 50 % RD'N' (T4) was most superior for increasing growth, flower quality and yield (16.73 t/ha) of marigold. However, the benefit cost ratio was highest (3.75) in treatment supplied with 50 % RDF + FYM equivalent to 50 % RD'N' + Sheep manure equivalent to 50 % RD'N' (T9) which was found superior compared to other treatments. | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810177846 | |
| dc.keywords | Crop Improvement and Nutrient Management Studies in Marigold (Tagetes spp.) | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 195 | en_US |
| dc.publisher | University of Agricultural Science, Dharwad | en_US |
| dc.research.problem | Crop Improvement and Nutrient Management Studies in Marigold (Tagetes spp.) | en_US |
| dc.sub | Horticulture | en_US |
| dc.theme | Crop Improvement and Nutrient Management Studies in Marigold (Tagetes spp.) | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Crop Improvement and Nutrient Management Studies in Marigold (Tagetes spp.) | en_US |
| dc.type | Thesis | en_US |