Chrysantemum much appreciated by the public for its beautiful colors and shapes, and has a longer vase life. Quality and vase life of chrysanthemum flowers not only was influenced by post harvest conditions but also the management during plant growth. Light, temperature, relative humidity, fertilization and spacing arrangement on cultivated plant are factors that can affect the quality and vase life of flowers. An experiment was conducted to study the variation of organic fertilizer application effect on quality and vase life of Chrysanthemum flowers with different row spacing, and to find out of organic fertilizer and row spacing which gave the best quality and vase life of Chrysanthemum flowers. Experimental design was used Split Plot Design with two factors: kinds of organic fertilizer as main plot and su plot was row spacing. Kinds of organic fertilizers consisted four levels: chicken, sheep, rabbit and cow dung, and three levels of row spacing : 10 cm x 10 cm, 15 cm x 10 cm and 20 cm x 10 cm. Those treatment combinations were repeated three times. Result of this experiment showed that application of organic fertilizer affected for the quality of chrysanthemum flowers in row spacing variation. Rabbit or sheep dung of organic fertilizer application gave the best of flower stalk and diameter of flowers, flowers of grade I > 60%, and vase life more than 13 days, if was planted with 20 cm x 10 cm row spacing .
Suatu penelitian dilakukan dengan tujuan mempelajari pertumbuhan dan hasil tanaman kacang tanah varietas Kidang akibat aplikasi konsentrasi pupuk organik Cair (POC). Penelitian dilaksanakan di Kebun Praktek SPP-SPMA Cianjur Kecamatan Cilaku Kabupaten Cianjur dengan ketinggian tempat 450 m di atas permukaan laut dan ordo tanah Inceptisol. Penelitian ini bersifat verifikatif dengan melakukan percobaan dengan menggunakan rancangan lingkungan Rancangan Acak Kelompok. Perlakuan percobaan adalah konsentrasi POC yang terdiri atas lima perlakuan, yaitu tanpa POC, 1 ml L-1, 2 ml L-1, 3 ml L-1, dan 4 ml L-1. Tiap perlakuan diulang lima kali. Hasil percobaan menunjukkan bahwa aplikasi konsentrasi POC memberikan efek berbeda terhadap tinggi tanaman, jumlah daun trifoliatus, jumlah polong per tanaman, persentase polong bernas, bobot polong bernas per tanaman dan per petak, bobot biji kering per tanaman dan per petak serta bobot 100 butir biji. Aplikasi POC dengan konsentrasi 4 ml L-1 memberikan pertumbuhan tinggi tanaman dan jumlah daun lebih baik tetapi terhadap komponen hasil dan hasil tanaman kacang tanah efeknya sama dibandingkan dengan aplikasi POC dengan konsentrasi 2 ml L-1 dan 3 ml L-1.
The aim of the article is to study the interaction effect between NAA and BAP concentration on protocorm growth and to know the proper concentration for growth of Dendrobium spectabile orchid protocorm. This research method using an experimental method which is conducted in the Laboratory of Agriculture Faculty of Winaya Mukti University, Tanjungsari Subdistrict, Sumedang District. The experiment was conducted from June 2017 until September 2017. The experiment used was a Completely Randomized Design (CRD) with the factorial pattern, consisting of two factors and repeated twice. the first factor was the effect of NAA concentration which consisted of five levels, namely without NAA, 0.5 mg kg-1, 1.0 mg kg-1, 1.5 mg kg-1, and 2.0 mg kg-1. The second factor is the BAP concentration which consists of five levels, namel without BAP, 1.0 mg kg-1, 2.0 mg kg-1, 3.0 mg kg-1, and 4.0 mg kg-1. Eksplant is protocorm from orchid D. spectabile which is grown on MS medium (Murashig and Skoog) half recipe as base medium accompanied by each treatment for 12 weeks. The experimental results show that there is an interaction between the effect of NAA and BAP concentration on the number of leaves only. Without NAA or 1.5 mg kg-1 NAA concentration with BAP 2.0 mg kg-1 gives more leaves. Independent of NAA or BAP concentrations did not affect the number of buds, number of roots, root length, fresh and dry weight of plantlets, and also growth ability of plantlets. BAP concentration only affect plant height, and the highest plantlet height is found without add of BAP in medium culture
Sebagian besar lahan di Indonesia mengandung bahan organik yang rendah (<1%), sehingga produktivitas lahan menjadi rendah. Produktivitas lahan yang rendah disebabkan rendahnya ketersediaan hara akibat peran mikroba tanah yang menguntungkan bagi tanaman menurun. Penambahan bahan organik dan penggunaan pupuk hayati merupakan usaha untuk meningkatkan produktivitas tanah dan tanaman. Mikoriza Arbuskula (MA) merupakan salah satu pupuk hayati yang dapat meningkatkan produktivitas tanah dan tanaman. Percobaan rumah kasa dilakukan dengan tujuanuntuk mempelajari efek takaran pupuk kompos disertai inokulasi mikoriza terhadap pertumbuhan,kolonisasi mikoriza dan hasil tanaman kedelai. Percobaan menggunakan Rancangan Acak kelompok berfola faktorial dengan dua faktor dan dua ulangan. Faktor pertama yaitu takaran kompos terdiri dari tanpa kompos, 10 ton ha-1, 20 ton ha-1 dan 30 ton ha-1, sedangkan faktor kedua kedua yaitu takaran mikoriza terdiri atas tanpa mikoriza, 5 g, 10 g dan 15 g per lubang tanam. Hasil percobaan menunjukkan bahwa takaran kompos dan mikoriza memberikan efek yang berbeda terhadap jumlah polong, jumlah biji dan bobot biji kering per tanaman, tetapi tidak terhadap tinggi tanaman, jumlah daun dan jumlah nodula efektif per tanaman, nisbah pupus akar, kolonisasi mikoriza, dan bobot 10 butir. Hasil lebih tinggi diperoleh jika pemberian 30 ton ha-1 dan 20 ton ha-1 disertai dengan inokulan miroriza masing-masing 10 g dan 15 g per lubang tanam.
Vetiver grass (Vetiveriazizanioides L. Nash) is one of the oil-producing plants essential. Tissue culture is one of the way to increase the availability of superior seeds of vetiver (Vetiveriazizanioides L. experiment was carried out at the Integrated Laboratory of the Faculty of Agriculture, Garut University from July to August 2020. This experiment used a Factorial Complete Randomized Design consisting of two factors, the first factor is NAA (N) with three levels of concentration, n1 =0, 5 mg / l, n2 = 1,5 mg/l, n3 = 2,5 mg/l varieties Verina 1. The purpose of this study was to obtain independent interactions and effects between Napthalene Acetic Acid (NAA) and Benzyl Amino Purine(BAP) on the micropropagation of vetiver plants (Vetiveriazizanioides L. Nash) variety Verina 1for 30 DAP. This 5 mg / l, n3 = 2.5 mg / l. The second factor is BAP (B) with two levels of concentration, b1 = 0.5 mg / l, b2 = 3 mg / l. The observed variables are: root emergence time, root number, callus appearance time, callus number, callus color and growth percentage. The results showed that there was no interaction between NAA and BAP, but there was an independent influence on the observed parameters of root emergence time, number of roots, callus appearance time and number of callus. The best concentration of NAA is 0.5 mg / l. The percentage of growth shows the yield of growth that is 100%.
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