Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mengetahui pengaruh tingkat kematangan buah dan konsentrasi pupuk Green Tonik serta interaksi antara keduanya terhadap pertumbuhan bibit kakao. Penelitian ini dilaksanakan di Kebun Percobaan, Laboratorium Teknologi Benih, dan Laboratorium Ilmu Gulma Fakultas Pertanian Universitas Syiah Kuala, Darussalam Banda Aceh pada bulan November 2021- Februari 2022. Alat yang digunakan dalam penelitian ini adalah cangkul, parang, spet suntik, meteran, jangka sorong, ayakan, hand sprayer volume 1 liter, kertas label, selotip bening, timbangan digital, paranet, polybag berkapasitas 5 kg, polybag kapasitas 1 kg, gembor, oven, leaf area meter, plastik, kamera ponsel, dan alat tulis. Bahan yang digunakan benih kakao, tanah, pupuk kandang, pupuk Green Tonik, dan pupuk NPK Mutiara 16:16:16. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial 3x4 dengan 3 kali ulangan dengan dua faktor yang diteliti yaitu tingkat kematangan buah (T) yang terdiri atas 3 taraf ( kuning pada alur buah, kuning pada alur dan punggung buah, dan kuning keseluruhan) dan konsentrasi pupuk green tonik (K) yang terdiri dari 4 taraf (0, 2, 4 dan 6 ml/liter air) terdapat 12 kombinasi perlakuan masing-masing kombinasi perlakuan diulang sebanyak 3 kali, sehingga terdapat 36 satuan percobaan. Setiap satu satuan percobaan diwakili 3 tanaman, sehingga total keseluruhan adalah 108 tanaman. Parameter yang diamati terdiri dari Tinggi bibit 30, 60, dan 90 HST, diameter pangkal batang umur 30, 60, dan 90 HST, jumlah daun 30, 60, dan 90 HST, luas daun 90 HST, berat brangkasan basah dan berat brangkasan kering 90 HST.
Hasil penelitian menunjukkan bahwa tingkat kematangan buah berpengaruh nyata terhadap tinggi bibit 30 HST. Pertumbuhan bibit terbaik terdapat pada tingkat kematangan kuning pada alur dan punggung buah. Perlakuan konsentrasi pupuk Green Tonik berpengaruh sangat nyata pada parameter tinggi bibit 30 HST, Jumlah daun 60 HST, berat brangkasan basah dan berat brangkasan kering 90 HST, berpengaruh nyata pada parameter diameter pangkal batang 30 dan 90 HST, jumlah daun 90 HST. Pertumbuhan bibit terbaik terdapat pada konsentrasi pupuk Green Tonik 2 ml/liter air. Terdapat interaksi yang nyata antara tingkat kematangan buah dan konsentrasi pupuk Green Tonik pada parameter tinggi bibit 30 HST, diameter pangkal batang 30 dan 90 HST, jumlah daun 60 HST, Luas daun, berat brangkasan basah dan berat brangkasan kering 90 HST. Pertumbuhan bibit terbaik terdapat pada kombinasi perlakuan tingkat kematangan kuning pada alur dan punggung buah dan konsentras pupuk Green Tonik 2 ml/liter air.

Kata kunci : kakao, tingkat kematangan, konsentrasi pupuk green tonik

. This study aims to determine the effect of fruit maturity level and concentration of Green Tonic fertilizer and the interaction between the two on the growth of cocoa seedlings. This research was carried out at the Experimental Garden, Seed Technology Laboratory, and Weed Science Laboratory, Faculty of Agriculture, Syiah Kuala University, Darussalam Banda Aceh in November 2021-February 2022. The tools used in this study were hoe, machete, syringe, meter, caliper. , sieve, 1 liter hand sprayer, label paper, clear tape, digital scale, paranet, 5 kg polybag, 1 kg capacity polybag, gembor, oven, leaf area meter, plastic, cell phone camera, and stationery. The materials used are cocoa seeds, soil, manure, Green Tonic fertilizer, and NPK Mutiara 16:16:16 fertilizer. This study used a 3x4 factorial randomized block design (RAK) with 3 replications with two factors studied, namely the level of fruit maturity (T) which consisted of 3 levels (yellow on the fruit groove, yellow on the groove and fruit back, and yellow overall). and concentration of green tonic fertilizer (K) consisting of 4 levels (0, 2, 4 and 6 ml/liter of water) there were 12 treatment combinations, each treatment combination was repeated 3 times, so there were 36 experimental units. Each experimental unit is represented by 3 plants, so the total is 108 plants. Parameters observed consisted of seedling height 30, 60, and 90 HST, diameter of stem base at 30, 60, and 90 HST, number of leaves 30, 60, and 90 HST, leaf area 90 HST, weight of wet stover and weight of dry stover 90 HST. The results showed that the level of fruit maturity had a significant effect on seedling height at 30 HST. The best seedling growth was found at the level of yellow maturity on the furrows and ridges of the fruit. Green Tonic fertilizer concentration treatment had a very significant effect on the parameters of seedling height 30 HST, number of leaves 60 HST, weight of wet stover and dry weight of stover 90 HST, significant effect on parameters of stem diameter 30 and 90 HST, number of leaves 90 HST. The best seed growth was found in the concentration of Green Tonic fertilizer of 2 ml/liter of water. There was a significant interaction between the level of fruit maturity and the concentration of Green Tonic fertilizer on the parameters of seedling height 30 DAP, diameter of stem base 30 and 90 HST, number of leaves 60 HST, leaf area, weight of wet stover and weight of dry stover 90 HST The best seedling growth was found in the combination of yellow maturity level treatment on grooves and fruit backs and Green Tonic fertilizer concentration of 2 ml/liter of water. Keywords: cocoa, maturity level, concentration of green tonic fertilizer