ABSTRAK
M. INDRA ISWAHYUDI: “Pemberian air kelapa dan lama waktu penyimpanan bahan tanam terhadap persentase keberhasilan okulasi dan pertumbuhan ubi kayu mukibat” dibawah bimbingan NINI RAHMAWATI dan MARIATI. Penelitian ini bertujuan untuk mengetahui pengaruh air kelapa dan lama penyimpanan bahan tanam terhadap persentase keberhasilan okulasi dan pertumbuhan ubi kayu
mukibat. Penelitian ini dilaksanakan di rumah kasa Fakultas Pertanian USU (±32m dpl) pada bulan Maret-Juni 2017 menggunakan Rancangan Acak
Kelompok (RAK) faktorial diulang 3 (tiga) kali. Faktor pertama konsentrasi air kelapa dengan 4 (empat) taraf yaitu: tanpa pemberian air kelapa (K0), air kelapa 25% (K1), air kelapa 50% (K2) dan air kelapa 75% (K3) serta faktor kedua lama penyimpanan bahan tanam (bt) dengan 3 (tiga) taraf perlakuan yaitu: penyimpanan 1 (satu) minggu (P1), penyimpanan 2 (dua) minggu (P2), dan penyimpanan 3 (tiga) minggu (P3). Peubah amatan adalah persentase keberhasilan okulasi, kecepatan bertunas, tinggi tunas, diameter tunas, jumlah daun, jumlah umbi, bobot basah akar, dan bobot kering akar. Hasil penelitian menunjukka n bahwa pemberian konsentrasi air kelapa berpengaruh nyata terhadap persentase keberhasilan okulasi, bobot basah akar,dan bobot kering akar. Dimana kensentrasi air kelapa yang terbaik ialah pada perlakuan air kelapa 50% (K2). Perlakuan lama penyimpanan bahan tanam berpenagruh nyata terhadap kecepatan bertunas, persentase bertunas, jumlah daun, bobot basah akar, dan bobot kering akar. Lama penyimpanan bt yang terbaik ialah penyimpanan 1 (satu) minggu (P1). Interaksi konsentrasi air kelapa dan lama penyimpanan bt berpengaruh nyata terhadap jumlah daun.
Kata kunci : okulasi, konsentrasi air kelapa, lama penyimpanan bahan tanam
ABSTRACT
M. INDRA ISWAHYUDI: "Giving of coconut water and storage time of planting materials to the percentage of budding success and growth of cassava mukibat" supervised by NINI RAHMAWATI and MARIATI. The purpose of this research was to determine the effect of coconut water and storage time of planting materials to the percentage of budding success and growth of cassava mukibat. The research was conducted at the home screen of Agriculture Faculty USU (± 32m asl) in March-June 2017 using Factorial Randomized Block Design (RAK) repeated 3 (three) times. The first factor is the concentration of coconut water with 4 (four) levels ie without coconut water (K0), coconut water 25% (K1), coconut water 50% (K2) and coconut water 75% (K3) and second factor of material storage Planting (bt) with 3 (three) treatment levels: 1 week storage (P1), 2 weeks storage (P2), and 3 (three) weeks storage (P3). The observed variables were percentage of budding success, spinning rate, shoot height, shoot diameter, number of leaves, number of tubers, root wet weight, and root dry weight. The results showed that the concentration of coconut water had a significant effect on the success rate of budding, root wet weight, and root dry weight. Where the best coconut water concentration is at 50% coconut water treatment (K2). The long treatment of planting material contribute significantly to sprout rate, germination percentage, number of leaves, wet root weight, and root dry weight. The best storage time for bt is 1 (one) week storage (P1). The interaction of coconut water concentration and bt storage time had significant effect on the number of leaves.
Keywords: budding , coconut water concentration, storage time of plant material
