Pengaruh Gibberellic Acid pada Benih Jagung (Zea mays L.) yang Didera dan Tidak Didera Etanol terhadap Daya Kecambah Benih danAktivitas Enzym alfa Amilase

Abstract

The experiment was conducted in the Seed Science and Technology Laboratory, Bogor ~ g r i c u l t u r a lU niversity on 1984. Accelerated aging was conducted by the method of Sadjad, using the IPB 77-1 Rapid Aging Machine. The influence of Gibberellic Acid (0, 250, 500 p p ) , dipping periode of GA (0, 5, 10, 15 hours), a r t i f i c i a l aging (95 percent etanol vapor) and various interactions of these factors on the germination and 4-amylase enzym activity of "Harapan Baru" corn (@a maye L.) seeds were determined. Gibberellic Acid increased the activity of .C-amylase enzym on treated and untreated seed l o t s , although there is no significant different on germination. The activity of 4-amylase enzym is significantly influenced by the period of dipping, but the concentration of Gibberellic Acid did not affected. Ringkasan : Percobaan dilaksanakan d i Laboratorium Ilmu dan Teknologi Benih, Institut Pertanian Bogor, pada tahun 1984. Benih yang te lah menua d iperoleh dengan meraperlakukan benih dengan metode Sad jad pada alat IPB 77-1. Kemudian kedua lot benih tersebut diberi perlakuan Gibberellic Acid dengan tiga taraf konsentrasi (0, 250, 500 ppn) dan empat taraf waktu perendaman (0, 5, 10, 15 jam).