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All Journal Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Agrifarm
Noor Jannah
Universitas 17 Agustus 1945 Samarinda
Agriculture, Biological Sciences & Forestry

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PENGARUH BERAT BENIH DAN MEDIA TANAM TERHADAP PERTUMBUHAN BIBIT KAKAO VARIETAS CRIOLLO (Theobroma cacao L.) Lukas Pakombong; Puji Astuti; Noor Jannah
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 18, No 2 (2019): Oktober 2019
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v18i2.4355

Abstract

Tujuan penelitian untuk mengetahui berat benih dan media tanam serta interaksinya terhadap pertumbuhan bibit kakao, dan juga untuk memperoleh berat benih dan media tanam yang tepat untuk pertumbuhan bibit kakao yang baik.Penelitian dilaksanakan pada bulan Maret-Juni 2015. Lokasi penelitian di Desa Bukit Harapan, Kecamatan Kaliorang, Kabupaten Kutai Timur, Provinsi Kalimantan Timur.Penelitian menggunakan dalam Rancangan Acak Lengkap (RAL), percobaan faktorial 3 x 3, dengan 4 ulangan. Terdiri atas 2 faktor perlakuan. Faktor pertama adalah berat benih (B), terdiri atas 3 taraf, yaitu : berat benih 7-13 g (b1), berat benih 14-17 g (b2), dan berat benih 18-20 g (b3). Faktor kedua adalah media tanam (M), terdiri atas 3 taraf, yaitu : tanah top soil + pasir (1:1) (m1), tanah top soil + pupuk kandang sapi (2:1) (m2), dan tanah top soil + sekam padi (2:1) (m3).Hasil penelitian menunjukkan bahwa perlakuan berat benih berpengaruh sangat nyata terhadap tinggi bibit umur 30, 60, 90 hari setelah tanam, jumlah daun umur 30 hari, umur 60 hari dan umur 90 hari setelah tanam, diameter batang umur 30, 60, 90 hari setelah tanam. Bibit tertinggi terdapat pada perlakuan b3 (berat benih 18-20 g) yaitu 24,59 cm, sedangkan bibit terendah terdapat pada perlakuan b1 (berat benih 7-13 g) yaitu 23,72 cm.Perlakuan media tanam berpengaruh sangat nyata terhadap tinggi bibit umur 30, 60, dan 90 hari setelah tanam, jumlah daun umur 30, 60, 90 hari setelah tanam, diameter batang umur 30 hari, umur 60 hari dan umur 90 hari setelah tanam. Jumlah daun terbanyak terdapat pada perlakuan m3 (tanah top soil + sekam padi) yaitu ; 20,64 helai, sedangkan jumlah daun paling sedikit terdapat pada perlakuan m1 (tanah top soil + pasir) yaitu ; 18,22 helai.Interaksi perlakuan berat benih dan media tanam tidak berpengaruh nyata terhadap tinggi bibit umur 60, 90 hari setelah tanam, jumlah daun umur 90 hari setelah tanam, dan diameter batang umur 60, 90 hari setelah tanam. Berpengaruh nyata terhadap diameter batang umur 30 hari setelah tanam. Berpengaruh sangat nyata terhadap tinggi bibit umur 30 hari setelah tanam, jumlah daun umur 30 hari dan umur 60 hari setelah tanam.
Relationship between Age and Standing Diameter of Eucalyptus pellita F. Muell Clone A in Industrial Plantation Forest Sebulu Kutai Kartanegara District, East Kalimantan Province: Hubungan Umur dengan Diameter Tegakan Eucalyptus pellita F. Muell Klon A di Hutan Tanaman Industri Kecamatan Sebulu Kutai Kartanegara Provinsi Kalimantan Timur noor jannah; Marjenah; Wahjuni Hartati; Ria Rachel Paranoan
Agrifarm : Jurnal Ilmu Pertanian Vol 9 No 1 (2020): July
Publisher : Universitas Widya Gama Mahakam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (395.169 KB) | DOI: 10.24903/ajip.v9i1.939

Abstract

Forestry development which is oriented towards meeting the raw materials of the forestry industry is one of them with industrial plantations. The types developed are adapted to the needs of the industry and which have high economic value. Eucalyptus pellita F. Muell is one of the fast growing species that is very important for the pulp and paper industry. The advantages of this Eucalyptus as a fast growing plant are short rotation, few disease attacks, many benefits, and high economic value. One of the parameters of vegetative growth is the diameter, which in this case is measured by different stand age classes. So the research aims to determine the effect of age on the distribution of diameters and suspect of relationship patterns. The plant material is derived from clones, namely Clone A which is the result of selection from progeny test which will produce selected clones based on specified criteria and one of them is Clone A which is now a commercial clone since 2012. Propagation through vegetative tissue culture (as mother plant) which is then made shoot cuttings in the stool plant. The study was conducted in HTI PT Surya Hutani Jaya (PT SRH) Sebulu District, Kutai Kartanegara Regency, East Kalimantan Province by determining the research plots by purposive sampling with RAK ​​and 3 replications. Furthermore, doing a diameter census (DSD) and numbering of all tree compilers stands in a circular research plot with an area of ​​0.05 ha, circle radius 12.6 m on stands aged 6 months (0.5 years), 2, 4 and 5 years. The results obtained from this study which are based on the analysis of variance (ANOVA) shows that stand age has a very significant effect on the distribution of diameters, where the results of the BNT 5% test indicate that among the average diameters per age class (6 months, 2, 4 and 5 years) show significantly different from each other. The linear regression relationship between age and diameter distribution of the average stand formed with the equation formed was: Y = 3.96 + 2.2777X, with values ​​R2 = 0.9730 and r = 0.9864.
Co-Authors dan Puji Astuti, Mariatul Qibtiah Lukas Pakombong Marjenah Marjenah Ria Rachel Paranoan Wahjuni Hartati