Indian Society of Genetics & Plant Breeding

Inheritance of leaf chlorophyll content in groundnut (Arachis hypogaea L.)

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In groundnut, water-use efficiency is governed by the
photosynthetic capacity which is dependent on leaf
nitrogen status. Leaf nitrogen status is ultimately reflected
in the chlorophyll content. Chlorophyll content of different
genotypes/individual plants in segregating generations in
a relative manner can be obtained through SPAD
chlorophyll meter reading (SCMR). The experimental
material consisted of 300-350 F
2 plants in each of five
crosses involving a common male parent. Individual plants
were screened for SCMR in F
2 populations of each cross
and the data were grouped taking a class interval of two.
From the perusal of F
2 frequency distributions of five
groundnut crosses and the results of skewness and
kurtosis, it could be inferred that leaf chlorophyll content
in groundnut may be a quasi-quantitative trait with
modifiers acting either to increase or decrease the
expression of the trait in different genetic backgrounds
as in the present study

Keywords: Groundnut, leaf chlorophyll content, inheritance, SPAD chlorophyll meter reading


Year: 2005
Volume: 65
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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