Variability studies in chrysanthemum (Chrysanthemum morifolium ramat.)
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Date
2008
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Publisher
CCSHAU
Abstract
The present investigation, “Variability studies in Chrysanthemum
(Chrysanthemum morifolium Ramat.)” was carried out in the experimental
orchard, Department of Horticulture, CCS Haryana Agricultural University during
2007-80 in winter season on 30 genotypes of chrysanthemum to estimate the
genetic variability, heritability, genetic advance and varietal characterization. The
experiment was laid out in Randomized Block Design with three replications. The
observations were recorded for plant and floral parameters.
All the genotypes differed significantly which indicated a wide range of
variation existed among the genotypes under study. The highest flower yield per
plant and maximum plant spread was exhibited by Anmol. The estimates of
heritability and genetic advance were high for fresh weight of ten flowers, stalk
length, plant height, number of buds per plant, number of flowers per plant and
flower yield per plant.
The correlation and path coefficient analysis revealed that number of
flowers per plant, number of buds per plant and plant spread contributed directly
as well as indirectly to flower yield. The characters which contributed to flower
yield were number of buds per plant, number of flower per plant, plant spread,
days to first flower and days to 50% flowering indicating selection of these
characters for crop improvement and breeding strategies. Through the schematic
flow chart all the genotypes were differentiated. The plant growth habit, leaf
margin, leaf colour, stalk shape, disc, flower colour were the key characters,
therefore, can be used as morphological descriptors for the varietal identification in
chrysanthemum.
Description
Keywords
Crops, Yields, Decision support systems, Fertilizers, Nutrients, Land management, Selection, Nitrogen, Land resources, Sampling