Analisa Karakter Morfologi Tanaman Kacang Kedelai Hitam (Glycine max (L.) Merril) Varietas Detam 2 Terhadap Konsentrasi dan Lama Perendaman Kolkisin

Abstract

Soybeans (Glycine max (L.) Merrill) are an important global legume crop that grows in tropical, subtropical, and temperate climates. Soybeans are referred to as the “protein hope” of the future because of their high nutritional value, containing approximately 42–45% protein. In addition to being a raw material for soy sauce production, black soybeans also play a role in the tempeh industry, which is a traditional Indonesian food product. This study was conducted on land at Gang Susuk VIII no. 3, Padang Bulan, Selayang 1, Medan City, North Sumatra, at an altitude of ± 32 meters above sea level. This study aims to examine the morphological characteristics of black soybean variety Detam 2, such as increasing production, the number of pods, and pod weight per plant using colchicine concentration and immersion treatments. This study was conducted from January to May 2025. The research method used was a two-factor Randomized Block Design (RAK) with 4 replications. The first factor was Colchicine (C) for concentration levels, consisting of Control, 0.01%, 0.02%, and 0.03%. The second factor was Time (T) for the duration of immersion, which was 6 hours, 12 hours, and 18 hours. The results showed that colchicine concentration did not have a significant effect on all observation parameters. The duration of colchicine immersion had a significant effect on the number of leaves at 61 HST and the number of pods per plant. The interaction between colchicine concentration and immersion duration had a significant effect on the weight of 100 seeds but did not significantly affect other parameters.