Inheritance and molecular analysis for iron and zinc content in pearl millet [Pennisetum glaucum (L.) R. Br.]
| dc.contributor.advisor | Khatri, R.S. | |
| dc.contributor.author | Anil Kumar | |
| dc.date.accessioned | 2019-08-07T07:05:42Z | |
| dc.date.available | 2019-08-07T07:05:42Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | Five crosses of pearl millet were evaluated to study the genetics of iron and zinc content, yield and its component traits. The present investigation was conducted to estimate additive, dominance and epistatic parameters, to develop the selection strategy for various traits in pearl millet. The present investigation was carried out during the period of kharif 2015, summer 2016 (ICRISAT, Patancheru) and kharif 2016 at Bajra Section, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India. The parental material has been selected on the basis of diverse range of grain iron and zinc content. The experimental material consisted of different generations viz., P1, P2, F1, F2, B1 and B2 of five crosses and were evaluated in compact family block design with three replications. Data were recorded on selected plants in for grain iron content, grain zinc content, yield and its contributing characters i.e. days to 50 per cent flowering, plant height, total tillers, productive tillers, panicle length, panicle girth and 200-grain weight. A wide range of variability was observed in the mean values of different traits among the parents and their different generations over the crosses. The average performance of backcross generations were higher than their respective parents for almost all traits indicated epistatic interactions may be involved in expressions of these traits. Both additive and dominance component of genetic variances had major role in inheritance for most of the traits over the crosses. Yield and most of the components depicted dominance effects, leads us to the conclusion that delayed selection will be effective strategy. Iron content was predominantly controlled by additive gene effects. The grain zinc content revealed that both additive and dominance components are equally important in the inheritance. High GCV and PCV were recorded for grain yield, total tillers per plant and effective tillers per plant indicated presence of high magnitude of variability. High to moderate values of GCV and PCV were recorded for grain iron content, zinc content and 200- seed weight. Low values of GCV and PCV with moderate to low broad sense heritability and genetic advance were recorded for days to 50% flowering, plant height, panicle length and panicle girth, indicating low scope of selection. High broad sense heritability for grain iron and zinc revealed that both grain Fe and Zn are highly heritable. A total of 70 SSR‟s were used for DNA polymorphism in the parents and hybrid which were monomorphic. Taking all together, the above findings advocate that genetic improvement of iron and zinc concentrations should be equitably effectual in pearl millet. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810119843 | |
| dc.keywords | Pearl millet, iron, zinc, molecular, inheritance | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | CCSHAU | en_US |
| dc.sub | Genetics and Plant Breeding | en_US |
| dc.subject | null | en_US |
| dc.theme | Inheritance and molecular analysis for iron and zinc content in pearl millet [Pennisetum glaucum (L.) R. Br.] | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Inheritance and molecular analysis for iron and zinc content in pearl millet [Pennisetum glaucum (L.) R. Br.] | en_US |
| dc.type | Thesis | en_US |