MOLECULAR MARKER ANALYSIS OF WHOLE-PLANT ARCHITECTURE OF RICE (Oryza sativa L.) UNDER AEROBIC CONDITION
| dc.contributor.advisor | Shashidhar, H. E. | |
| dc.contributor.author | POOJA, A. S. | |
| dc.date.accessioned | 2019-07-12T07:44:34Z | |
| dc.date.available | 2019-07-12T07:44:34Z | |
| dc.date.issued | 2018-09-05 | |
| dc.description.abstract | Declining water resources for rice cultivation has encouraged research on the development of water efficient aerobic rice varieties by combining the high-yielding traits of lowland varieties with the drought-resistant characteristics of upland varieties. Grain yield is one single trait that could be considered as a manifestation of drought resistance. The wholeplant architecture of aerobic rice was studied by considering both shoot and root traits in order to determine an efficient selection criteria for improving grain yield under drought condition. In this study, ten genotypes which were highly contrasting in phenotypic characters were grown in field as well as in PVC pipes. Field evaluation of the different genotypes for root morphological traits, yield and yield attributed traits under aerobic condition revealed significant differences among the genotypes for all traits. GCV, PCV, h2 and genetic advance were high in genotypes for all the traits recorded. Highest value for root length was 70.16 cm (Moroberekan). Grain yield showed significant positive correlation with plant height, panicle length, shoot biomass, shoot growth rate by length, total plant length, root length and root number. Molecular marker analysis was done using 45 SSR markers. Out of 45 SSR primers, 15 of them were found to be polymorphic while rest were monomorphic. These markers generated unique alleles of various sizes in different genotypes which can be a source of new alleles. The study reveals that adequate diversity still exists in the cultivar genepool for steady varietal improvement. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810114145 | |
| dc.language.iso | en | en_US |
| dc.pages | 179 | en_US |
| dc.publisher | University of Agricultural Sciences, Bengaluru | en_US |
| dc.sub | Plant Biotechnology | en_US |
| dc.subject | null | en_US |
| dc.theme | MOLECULAR MARKER ANALYSIS OF WHOLE-PLANT ARCHITECTURE OF RICE | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | MOLECULAR MARKER ANALYSIS OF WHOLE-PLANT ARCHITECTURE OF RICE (Oryza sativa L.) UNDER AEROBIC CONDITION | en_US |
| dc.type | Thesis | en_US |