Analysis of genetic diversity and characterization of guava ( Psidium guajava L.) germplasm
| dc.contributor.advisor | Sharma, Som Dev | |
| dc.contributor.author | Verma, Megha | |
| dc.date.accessioned | 2023-12-18T15:20:40Z | |
| dc.date.available | 2023-12-18T15:20:40Z | |
| dc.date.issued | 2023-11-04 | |
| dc.description.abstract | The Present investigation entitled, “Analysis of genetic diversity and characterization of guava ( Psidium guajava L.) germplasm” were carried out at experimental farm of Department of fruit science, College of Horticulture and Forestry, Neri, Hamirpur (H.P.) during the year 2022 and 2023. Significant variations were observed among nine guava genotypes for various quantitative and qualitative traits. Cultivar Arka Rashmi had maximum fruit length, fruit width, fruit weight, fruit length/width ratio, pulp weight, thickness of outer flesh, minimum core diameter and number of seeds per fruit. In correlation studies, average fruit weight had positive and significant correlation with pulp weight, fruit length and fruit width at phenotypic and genotypic level. The path coefficient analysis showed that the pulp weight followed by fruit width and fruit length has maximum positive direct effect on fruit weight. The maximum negative direct effect of titratable acidity was observed on fruit weight. In diversity study 35 SSR markers were screened to estimate genetic diversity among guava cultivars. Only 16 primers were able to amplify and yielded 57 scorable bands in all nine guava cultivars out of which 44 bands were polymorphic with 77.19% polymorphism, which depicts high level of polymorphism among the cultivars under study. The Jaccard’s similarity coefficient value ranged from 0.167 to 0.785. In SSR Cluster analysis two major cluster were formed and Cluster ‘II’ was founded to be bigger cluster containing five cultivars and Cluster ‘I’ containing four cultivars. Maximum similarity coefficient value 0.785 was observed between Arka Rashmi & Arka Kiran and minimum similarity coefficient value 0.167 was observed between CISH GS-14 and Arka Kiran. SSR cluster analysis showed that cultivar CISH G-6 and Arka Kiran were the most divergent/dissimilar while, cultivar Arka Rashmi and Arka Kiran were the most similar. | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810203757 | |
| dc.keywords | Guava | |
| dc.keywords | genetic diversity | |
| dc.keywords | Fruit Science | |
| dc.language.iso | English | |
| dc.pages | 139+Vii | |
| dc.publisher | College of Horticulture and Forestry Dr YSP UHF, Neri, Hamirpur(H.P.) | |
| dc.sub | Fruit Science | |
| dc.theme | Evaluation of guava cultivars/ hybrids for different morphological characters | |
| dc.these.type | M.Sc | |
| dc.title | Analysis of genetic diversity and characterization of guava ( Psidium guajava L.) germplasm | |
| dc.type | Thesis |