Parameter Genetik Jagung Populasi Bisma pada Pemupukan yang Berbeda. II. Ragam dan Korelasi Genetik Karakter Sekunder

Sutoro Sutoro, Abdul Bari, Subandi Subandi, Sudirman Yahya

Abstract


Genetic Parameter of Secondary Traits of Corn in Bisma
Population under Different Fertilizer Application. II. Genetic
Variance and Correlation of Secondary Traits.
Sutoro, Abdul Bari, Subandi, and Sudirman Yahya. The
magnitute of secondary traits of corn could affect the corn
yield. Genetic parameter value of secondary traits are
important in plant breeding, especially in selection program.
Genetic parameter could be used for estimation of correlated
response by involving value of genetic correlation and
genetic variance. Value of genetic parameter is different
among population and environment. Genetic parameter of
secondary traits on Bisma population under 3 different level
of fertilizer application were studied in Bogor. Result of the
study showed that addtive genetic variance of ASI, chlorofil,
seed number, amount of green leaves and LAI at flowering
stage greater than dominant variance. Conversely, additive
genetic variance of green leaf number and LAI at maturing
stage, and leaf senescene are lower than dominant variance.
ASI has greatest heritability among secondary traits
under three level of fertilizer application. Positive genetic
correlation was found between grain yield under low fertileizer
application and ASI under high level fertilizer application
or between grain yield under high level of fertilizer application
and ASI under low level fertilizer application.


Keywords


Secondary trait; genetic variance; corn

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DOI: http://dx.doi.org/10.21082/jbio.v3n1.2007.p9-14

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P-ISSN : 1907-1094
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