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

Abstract

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