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GENETIC STUDIES ON CARNATION (Dianthus caryophyllus L.)

KrishiKosh

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Title GENETIC STUDIES ON CARNATION (Dianthus caryophyllus L.)
 
Creator CHAUHAN, PRATIBHA
 
Contributor DHIMAN, S.R.
 
Subject developmental stages, genotypes, planting, diseases, genetics, grading, precipitation, atmospheric disturbances, budding, environmental factors
Carnation (Dianthus caryophyllus L.) , Genetics
 
Description ABSTRACT
The present investigation entitled “Genetic studies on carnation (Dianthus caryophyllus L.)”
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 2012 to 2014. The
experiment was laid out in a RBD with three replications and data was recorded for the three
flowering flushes. Fifty diverse genotypes including check (genotype ‘Master’) 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 carnation genotypes. Genotypes ‘Snow
Storm’, ‘Don Pedro’, ‘Hermes’, ‘Cinderella’, ‘Kleos’, ‘UHFSCar Col.-1’ and ‘UHFSCar Col.-4’,
were found to be superior with respect plant height, stem length and flower size. Early flowering was
recorded in genotypes ‘UHFSCar Col.-9’, ‘UHFSCar Col.-11’, ‘Tempo’, ‘Madras’ and Liberty’,
whereas, maximum number of flowers per plant was recorded in genotypes ‘UHFSCar Col.-9’,
‘Madame Colette’, ‘Liberty’, ‘Tamarind’ and ‘Baltico’. For the production of quality stems in terms
of stem sturdiness, genotypes ‘Liberty’, ‘Golem’, ‘Dark Rendez-Vous’ and ‘Arka Flame’ were found
best, whereas, maximum production of ‘A’ grade flowers based on stem length was recorded in
genotypes ‘Snow Storm’, ‘Don Pedro’, ‘Happy Golem’ and ‘UHFSCar Col.-3’. Maximum to
moderate variability estimates in terms of GCV, PCV, heritability, genetic advance and genetic gain
was observed for characters such as calyx splitting, disease incidence, plant height, stem length,
number of flower stems per plant, flower size and vase life indicating high genetic variability for these
traits. Significant positive correlation of the desirable traits such as number of flower stems per plant,
flower size, stem length etc., was found to be favourable for breeding as it helps in simultaneous
improvement of correlated characters. Positive direct effect of plant height, vase life and calyx
splitting on the number of flowers per plant revealed the true relationship between them and direct
selection for these traits will be rewarding for the flower yield. Further, divergence studies indicated
that hybridization between cluster-I and IV can be utilized for getting the superior recombinants in
segregating generations they were having maximum inter cluster distance. Morphological
characterization of 50 genotypes was done for 55 characters and the genotypes were then categorized
accordingly and the results were summarized in the form of draft guidelines.
 
Date 2016-06-16T10:49:55Z
2016-06-16T10:49:55Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/67442
 
Language en
 
Format application/pdf