Pengujian Vigor Daya Simpan Benih Kubis (Brassica oleracea var. capitata L.) Menggunakan Metode Pengusangan Cepat dengan Etanol

Abstract

The objective of this study was to obtain an effective soaking time on the accelerated aging method with liquid ethanol 20%, that can estimate vigor related to storability of 6 cabbage seeds after storage for 6 months. Cabbage seed consists of 6 commercial seed lots with different initial vigor, they were G1, MG, GC, GT, B3, and KC. The first experiment was storing seed for 6 months within aluminium foil packaging in the open storage room with temperature 23.329.9 C and 6185% relative humidity. The second experiment was rapid aging by soaking seeds in liquid ethanol 20% during 30, 60, 90, and 120 minutes. Index of vigor seed after soaking during 30 minutes had a closed correlation with germination of seed after storage for 6 months with a coefficient correlation 0.92, so that could be used to predicted vigor related to storability seed. Vigor related to storability cabbage seed after storage for 6 months could be predicted by the equation , with x indicated indeks of vigor seed after soaking in liquid ethanol 20% during 30 minutes, and coefficient determination (R2) was 83.8%.