Pendugaan parameter genetik jagung dan pemilihan lingkungan seleksi untuk pemupukan rendah

Abstract

Most of the improved corn varieties released in Indonesia are responsive to fertilizer application rate, and they will be low yielding when grown in marginal area. To obtain corn variety which is tolerant to low fertilizer input could be done by improving population through selection. Selection environment determines breeding progress to obtain suitable variety for target environment. The objectives of this study were to estimate genetic parameters and to select for environment in which selection should be conducted when the improved population is to be grown under low fertilization. The experiment was carried out by crossing among S1 lines of Bisma variety using North Carolina Design II. Progenies were evaluated and selected in three levels of fertilizer application. Gain of selection was estimated using full-sib and S1 based on half-sib performance methods