Kompatibilitas Batang Bawah Nangka (Artocarpus Heteropyllus Lamk) Kultivar Beka-3 Dan Tulo-5 Terhadap Berbagai Entris Terpilih

Telah diketahui bahwa tingkat keberhasilan pertautan sambungan pada tanaman nangka masih sangat rendah. Hal ini diduga akibat faktor fisiologis yaitu tingginya kandungan getah, ketidaksesuaian ukuran diameter batang bawah dengan entris, serta faktor lingkungan di sekitar lokasi pertumbuhan bibit. Untuk mengatasi hal tersebut dapat dilakukan saat bibit berumur 3 bulan dan ditanam pada lokasi yang mendukung. Penelitian ini bertujuan untuk mendapatkan kompatibilitas bibit batang bawah dan keberhasilan pertautan sambungan pada berbagai entris dengan cara grafting pada bibit tanaman nangka. Penelitian ini dilaksanakan pada bulan Juli sampai Oktober 2010, di Desa Mpanau, Kecamatan Sigi Biromaru, Kabupaten Sigi, Sulawesi Tengah. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial 2 faktor. Faktor pertama menggunakan berbagai kultivar batang bawah yang terdiri atas dua taraf, yaitu : BA = Kultivar Beka-3 dan BB = Kultivar Tulo-5 . Faktor kedua menggunakan kultivar entris yang terdiri atas tiga taraf, yaitu : KA = Kultivar Lambara, KB = Kultivar Bora, KC = Kultivar Toaya. Dengan demikian terdapat 6 kombinasi perlakuan dan setiap perlakuan diulang tiga kali sebagai kelompok, sehingga diperoleh 18 unit perlakuan. Setiap unit percobaan terdapat 10 bibit tanaman dan total bibit 180 bibit tanaman. Analisis ragam menunjukkan bahwa berbagai kultivar batang bawah dan entris berpengaruh sangat nyata terhadap bibit bertaut. Terdapat interaksi antara batang bawah Beka-3 dan entris Lambara terhadap persentase bibit bertau

Lama Penyimpanan Dan Invigorasi Terhadap Vigor Bibit Kakao (Theobroma Cacao L.)

Penelitian ini bertujuan untuk mengetahui kevigoran bibit kakao pada berbagai lama penyimpanan dan invigorasi benih. Penelitian ini disusun berdasarkan pola faktorial menggunakan Rancangan Acak Lengkap, dengan 2 faktor. Faktor pertama adalah lama penyimpanan benih yang terdiri dari lima taraf yaitu: 1) control , 2) lama simpan 2 minggu, 3) lama simpan 4 minggu, 4) lama simpan 6 minggu, 5) lama simpan 8 minggu. Faktor kedua adalah cara invigorasi benih dengan menggunakan ZPT yang terdiri dari empat macam yaitu: 1) tanpa ZPT, 2) 0,01 m mol GA3, 3) 0,01 m mol GA3 + 0,1 m mol NAA, 4) air kelapa. Data yang diperoleh dianalisis ragam, data yang memiliki koefisien keragaman lebih dari 20% ditransformasikan ke √ x + 0,5 Sedangkan perlakuan yang berpengaruh nyata dilanjutkan dengan uji BNJ pada taraf 0,05. Hasil penelitian memperlihatkan bahwa : Semakin lama benih disimpan menyebabkan vigor bibit juga semakin menurun. Invigorasi dengan GA3 + NAA memberikan pengaruh yang lebih baik terhadap persentase bibit vigor, tinggi bibit, jumlah daun dan indeks vigor hipotetik. Air kelapa dapat menjadi alternative cara invigorasi benih kakao yang telah mengalami kemunduran

Identifikasi Morfologi Dan Anatomi Jeruk Lokal (Citrus SP) Di Desa Doda Dan Desa Lempe Kecamatan Lore Tengah Kabupaten Poso

This study aims was to determine the characteristics of citrus plants basedon theirmorphology and anatomy of leafat Dodaand Lempe Villages, Lore Tengah District-Poso Regency. The observation of morphologywas conducted in the field in both villages, while the anatomical observation was conducted at Science and Seed TechnologyLaboratory and Pest and Disease Laboratory of Agriculture Faculty of Tadulako University from October to November2015.The morphology variable observed was the shape and color of the trunk, branching form, canopy,canopydiameter, trunk surface, leaf adges and ends shape, leaf symmetry, flus color, leaf upper and upper and lower surface, leaf mesophyl, leaf size, petiole shape and length. The anatomy consist of density and stomata index. The result showed that morphology and anatomy characteristics observed based on cluster analysis drawn in the shape of dendogram. The results of cluster analysis was obtained that the citrus in both villages has two or three accessions, this initial finding can be used later to discover good quality of citrus seedling

Karakterisasi Morfologi dan Anatomi Aksesi Mangga Dodor (Mangifera SP.) di Kecamatan Sindue Kabupaten Donggala

Mango (Mangifera indica), is a fruit that comes from India, it has many varieties. Mangoes are generally marketed in the form of fresh, both for domestic and export purposes. The objectives of this study were to assess the accession mango dodor in Lembah Palu through characterization of morphological and anatomical Toaya and Lero Village Donggala District. The research method using accessibility method by observing plant morphology character was continued with characterization of diversity using cluster analysis using systat software 0.8. The results showed that there were several different accessions in each village in Sindue subdistrict based on morphological and anatomical characteristics.The different accessions in Toaya Village at a distance of 0.6 were obtained TF11, TF9, TF14. Lero village have different accessions, namely LR6, LR14, and LR13 and in Sindue sub-districts TF9, LR6, and LR15

Pengaruh Lama Perendaman Dan Konsentrasi Giberelin (Ga3 ) Terhadap Viabilitas Benih Kakao (Theobroma Cacao L.)

Cocoa is one of the national commodity and plays an important role for the economy of Indonesia, especially in terms of farmer's income and source of foreign exchange Cocoa seeds are recalcitrant i.e. prone to drought, sensitive to temperature and humidity. Cacao seeds have no dormancy, low storage capacity and sensitive to environmental changes. This study aimed to determine soaking time periods and concentration of gibberellin (GA3) for best cocoa seed viability. The study was conducted in the Seed Laboratory of Faculty of Agriculture, Tadulako University from March to April 2016. It was arranged in a Completely Randomized Design with two factors. The first factor is the time length of soaking i.e. 2 h, 4 h, and 6 h while the second factor is the concentration of gibberellins i.e. 5 ppm, 10 ppm, and 15 ppm. Thus there were 9 treatment combinations and replicated 3 times resulting in 27 experimental units where each unit consisting of 20 grains of seed. Data was analyzed using Variance Analysis and then continued with the Honestly Significant Difference if there is a significant effect. The research results showed that the interaction effect between the length of time and the gibberellin concentrations is significant on root length but not significant on germination rate and root volume