MORPHOMETRIC AND CHEMICAL VARIABILITY IN SOAPNUT (Sapindus mukorossi GAERTN.) IN HIMACHAL PRADESH
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Date
2013
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Abstract
ABSTRACT
In order to select better seed sources for improved genetic gain and quality production of Sapindus
mukorossi, twenty four seed sources and two D.B.H. classes from Himachal Pradesh were evaluated on
the basis of fruits and seeds morphometric traits, laboratory germination, oil content and physicochemical
and progeny performance traits. The present study entitled, “Morphometric and Chemical
Variability in Soapnut (Sapindus mukorossi Gaertn.) in Himachal Pradesh” was carried out in the
experimental field and laboratory of the Tree Improvement and Genetic Resources, Dr Y S Parmar
University of Horticulture and Forestry, Nauni, Solan (HP) during 2011-13. The study revealed
significant variation among different seed sources for all traits, except seed viability, and oil physicochamical
traits for viscosity, saponification value, specific gravity and refractive index while, all
morphometric, oil content, physico-chemical, laboratory germination and progeny performance traits
did not show significant variation between D.B.H. classes. Seed sources which have higher seed weight
and seed diameter showed better performance than others, those seed with lower seed weight and seed
diameter comparatively. Over all Banjar seed source was found to be superior followed by Garsa seed
source for all traits. All traits were more over genetically controlled as revealed by high heritabilities.
High heritability with low genetic advance is associated with seed diameter. Phenotypic coefficient of
variability is higher than genotypic coefficient of variability for all traits which means that the
characters have interacted with the environment to some degree of extent. Positive significant
genotypic and phenotypic correlation was found among fruits weight, seeds weight, kernel weight, seed
diameter, germination traits, oil content and progeny performance traits, which suggest that selection
for any one of these, will be reliable for others too and phenotypic correlation coefficients were lower
than the corresponding genotype ones for these traits.