Daya Adaptasi Lamtoro Mini (Desmanthus virgatus) Terseleksi Media Salin terhadap Cekaman Tanah Masam.

Abstract

CHORIANA CAHYANINGRUM. Daya Adaptasi Lamtoro Mini (Desmanthus virgatus) Terseleksi Media Salin terhadap Cekaman Tanah Masam. Dibimbing oleh PANCA DEWI MANU HARA KARTI SOEWONDO dan IWAN PRIHANTORO. Penelitian ini bertujuan mengevaluasi tingkat adaptasi Desmanthus virgatus hasil teradaptasi salin yang ditumbuhkan pada cekaman tanah masam tinggi pH 4,0. Penelitian ini dilakukan di rumah kaca Laboratorium Lapang Agrostologi, Fakultas Peternakan, IPB University. Penelitian ini menggunakan penelitian deskriptif kuantitatif. Tanaman yang digunakan sebanyak 5 identitas tanaman dengan 100 tanaman untuk setiap identitas individu dan 20 tanaman untuk tanaman wildtype. Kandidat mutan unggul D. virgatus yang digunakan yaitu DM2, DM3, DM4, DM5, DM6 dan benih wildtype untuk mengetahui kemampuan adaptasi tanaman dalam kondisi cekaman tanah masam. Peubah yang diamati meliputi pengukuran morfologi seperti tinggi tanaman, jumlah daun majemuk, diameter batang, jumlah daun pinnate, dan warna daun. Penelitian ini menggunakan analisis deskriptif dengan uji normalitas menggunakan Shapiro-Wilk diterapkan untuk menentukan distribusi data. Hasil penelitian menunjukkan DM3.18, DM5.95 dan DM6.38 kandidat mutan unggul dari evaluasi pertumbuhan dan indeks konsentrasi karakter morfologinya.

CHORIANA CAHYANINGRUM. Adaptability of Selected Salt-Media Lamtoro Mini (Desmanthus virgatus) to Acid Soil Stress. Supervised by PANCA DEWI MANU HARA KARTI SOEWONDO and IWAN PRIHANTORO. This study aimed to evaluate the adaptation level of Desmanthus virgatus genotypes previously adapted to saline conditions when grown under high acid soil stress (pH 4.0). The research was conducted in the greenhouse of the Agrostology Field Laboratory, Faculty of Animal Science, IPB University. A quantitative descriptive research method was employed. The plant materials consisted of five mutant candidate genotypes, with 100 plants for each genotype, and 20 plants of the wildtype. The superior mutant candidates of D. virgatus used in this study were DM2, DM3, DM4, DM5, DM6, along with wildtype seeds, to assess their adaptation ability under acidic soil stress. The observed variables included morphological traits such as plant height, number of compound leaves, stem diameter, number of pinnate leaves, and leaf color. Descriptive analysis was performed, and the Shapiro–Wilk normality test was applied to determine data distribution. The results showed that DM3.18, DM5.95, and DM6.38 were identified as superior mutant candidates based on growth performance and morphological character concentration index.