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      Karakteristik Morfologi Kandidat Mutan Lamtoro Cv. Tarramba Generasi M2 Pada Cekaman Tanah Masam

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      Date
      2025
      Author
      Pascal
      Permana, Asep Tata
      Soewondo, Panca Dewi Manu Hara Karti
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      Abstract
      Potensi tanah masam yang besar di Indonesia. Upaya memanfaatkan tanah masam dapat dilakukan melalui pengembangan lamtoro tarramba yang toleran cekaman tanah masam. Penelitian ini bertujuan mendapatkan informasi tentang viabilitas benih, daya bertahan hidup, serta mengevaluasi karakteristik morfologi kandidat mutan lamtoro tarramba toleran cekaman tanah masam generasi M2 pada tanah masam pH 4,0 dengan melihat dari indeks konsentrasi karakteristik morfologinya untuk mendapatkan kandidat mutan dengan kualitas yang unggul. Penelitian dilaksanakan selama 84 hari di Laboratorium Lapang Agrostologi, Bogor, menggunakan Rancangan Acak Lengkap (RAL) 6 perlakuan, kandidat mutan lamtoro generasi M2 identitas GLM.0, GLM.1, GLM.8, GLM.9, GLM.10 sebanyak 100 ulangan dan kontrol sebanyak 20 ulangan. Parameter yang diamati meliputi viabilitas benih, daya bertahan hidup, karakteristik morfologi, dan indeks konsentrasi karakteristik morfologi. Hasil penelitian menunjukkan bahwa kandidat mutan lamtoro tarramba toleran cekaman tanah masam generasi M2 yang mempunyai karakteristik morfologi yang unggul, ditunjukan oleh identitas GLM.1, GLM.8, dan GLM.10 sebagai kandidat terbaik. Simpulan penelitian ini adalah kandidat mutan lamtoro tarramba toleran cekaman tanah masam generasi M2 pada tanah masam pH 4,0 perlakuan GLM.1, GLM.8, dan GLM.10 menunjukkan indeks konsentrasi karakteristik morfologi yang unggul dibandingkan dengan perlakuan lainnya.
       
      The great potential of acidic soil in Indonesia. Efforts to utilize acidic soil can be done through the development of lamtoro tarramba that is tolerant to acidic soil stress. This study aims to obtain information on seed viability, survival rate, and evaluate the morphological characteristics of M2 generation lamtoro tarramba mutant candidates tolerant to acidic soil stress on acidic soil with a pH of 4.0 by examining the morphological characteristic concentration index to obtain mutant candidates with superior quality. The study was conducted over 84 days at the Agrostology Field Laboratory in Bogor, using a Completely Randomized Design (CRD) with 6 treatments, M2-generation lamtoro tarramba mutant candidates identified as GLM.0, GLM.1, GLM.8, GLM.9, and GLM.10, each with 100 replicates, and a control group with 20 replicates. The parameters observed included seed viability, survival rate, morphological characteristics, and morphological characteristic concentration index. The results showed that the M2 generation lamtoro tarramba mutant candidates tolerant to acidic soil stress with superior morphological characteristics, as indicated by the identities GLM.1, GLM.8, and GLM.10, were the best candidates. The conclusion of this study is that the M2 generation lamtoro tarramba mutant candidates tolerant to acidic soil stress on acidic soil with a pH of 4.0, treated with GLM.1, GLM.8, and GLM.10, showed superior morphological characteristic concentration indices compared to other treatments.
       
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      http://repository.ipb.ac.id/handle/123456789/166566
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