Ph.D. Thesis from India

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henry kuska
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Ph.D. Thesis from India

Post: # 70699Post henry kuska
Sun Dec 08, 2019 10:21 am

Title: " DUS CHARACTERIZATION AND GENETIC STUDIES IN ROSE (Rosa hybrida)"

ABSTRACT
"The present investigation entitled “S Characterization DUS and Genetic studies in Rose (Rosa hybrida)” was carried out at experimental farm of Department of Floriculture and Landscape Architecture, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during 2017 to 2018. The experiment was laid out in a RBD with three replications and data was recorded for two years.Forty five diverse genotypes were evaluated for various growth and flowering parameters to assess the extent of variability, heritability, genetic divergence and the morphological characterization of these genotypes. Wide and significant variations for all the parameters were observed among the different miniature rose genotypes. Among the tested genotypes Royal Midnette had very high number of flowering stem per plant and genotype Dazzler had maximum number of flower per bunch. Maximum duration of flowering was found in MaigoldSweet Dream. Maximum plant spread was in Wild Fire thus is suitable for bedding purpose.Genetic diversity among 45 genotypes was grouped into 19 clusters in which Maximum number of 14 genotypes was accommodated in cluster 2, followed by cluster 1 accommodating 8 genotypes, cluster 3 having 7 genotypes, whereas, rest of the clusters consisted of only one genotype each.The study generated information regarding Distinctness Uniformity and stability as well as the relationship between 45 different genotypes of rose on the basis of DUS descriptor.On the basis of DUS descriptors 45 genotypes were grouped into 7 distinct clusters and the divergence contribution among the varieties by different characters were ranked.This study will aid in identification of genotypes studied. The Database of morphological data was prepared for further use as reference collection.The genetic information will help for making crosses or planning breeding programs for developing superior cultivars of miniature roses."


I could not get the actual thesis to download (PDF version).

https://krishikosh.egranth.ac.in/handle/1/5810135493

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