The developing of urban agriculture is having an important contribution in food supply to the citizen. One of urban agriculture commodity which is marketable is leaf vegetable, as the sources of protein, vitamin, minerals, essential amino acids that is cheap and available everydays. Even though the developing of urban agriculture commodity in the marginal land condition, but the result is a good product. This research conducted to make a comparison of nutrition value the leaf vegetable which planted in surabaya urban agriculture, such as Kangkung (Ipomea aquatic forsk), Mustard green (Brassica rapa), and Spinach (Spinacea oleracea L.), with its similar products which are produced organically. The method used is descriptive quantitative. The total chlorophyll content and carotenoids are be measured by using spectrophotometric method at a wavelength of 480 nm, 645nm, and 663 nm.The content of vitamin C be measured by using the titration methods solution of Dichlorophenol Indophenol (DCPIP). The findings indicated that vegetable which planed in non organic agriculture, or organic, is having high enough in water content, more than 80%. The high vitamin C level is in non organic Mustard green (2,45 µg/g) and the lowest one in organic spinach (0,68 µg/g). The high chlorophyll level is in non organic spinach (23,81 mg/L) and the lowest one in non organic kangkung (3,29 mg/L). Likewise, the high carotene level is in non organic spinach (263,52 μmol/L) and the lowest one in non organic mustard green (168,02 μmol/L). The results of this study indicate that there is no particular type of leaf vegetables that has all the best nutrition value, both organic and non-organic. Pertanian perkotaan dikembangkan agar dapat memiliki kontribusi penting dalam memasok bahan pangan penduduk kota. Salah satu komoditi pertanian perkotaan yang cukup marketable adalah sayuran daun. Sayuran daun adalah sumber protein, vitamin, mineral, dan asam amino esensial paling murah dan tersedia setiap saat. Meskipun komoditi pertanian perkotaan dikembangkan di lahan yang marjinal, namun menghasilkan produk yang cukup baik. Penelitian ini dilakukan untuk membandingkan nilai gizi sayuran daun yang ditanam di pertanian perkotaan kota Surabaya, yaitu kangkung (Ipomea aquatic Forsk), sawi hijau (Brassica rapa), dan bayam (Spinacea oleracea L.), dengan produk serupa yang dihasilkan secara organik. Metode yang digunakan adalah deskriptif kuantitatif. Kandungan klorofil total dan karotenoid diukur dengan menggunakan metode spektrofotometri pada panjang gelombang 480 nm, 645 nm, dan 663 nm. Kandungan vitamin C diukur dengan metode titrasi larutan Dichlorophenol Indophenol (DCPIP). Hasil penelitian menunjukkan sayuran yang ditanam pada pertanian non organik, maupun organik, memiliki kadar air yang cukup tinggi, yakni lebih dari 80%. Kadar vitamin C tertinggi pada Sawi non organik (2,45 µg/g) dan terendah pada bayam organik (0,68 µg/g). Kadar klorofil tertinggi pada bayam non organik (23,81 mg/L) dan terendah pada kangkung non organik (3,29 mg/L). Demikian juga kadar karoten tertinggi pada bayam non organik (263,52 μmol/L) dan yang terendah pada sawi non organik (168,02 μmol/L). Hasil penelitian ini menunjukkan bahwa tidak ada jenis sayuran daun tertentu yang memiliki seluruh nilai gizi terbaik, baik yang organik maupun yang non organik.
Fig is one of the introduced fruit trees, which became popular in Indonesia. Its leave and fruit can be used as medicine and healthy food. The effect of different combination concentration of BAP (Benzylaminopurine) and 2,4-D (2,4-dicholophenoxy acetic acid) on callus induction from leaf segment of Ficus carica L. were studied. The effect of differrent combination of BAP and coconut water on morphogenesis of single node of Fig was also investigated. The study was arranged as factorial design in completely randomized design in two experiments with 5 repetitions for each treatment. The factors of experiment I were the concentration of BAP (0,1, and 2 mg/L) and the concentration of 2,4-D (0,1, and 2 mg/L). And the factors of experiment II were the concentration of BAP (1 and 2 mg/L) and the concentration of coconut water (100 and 150 mL/L). Each treatment consisted of 10 replicates (bottles). The result showed that MS (Murashige and Skoog) medium supplement with 100 mL/L coconut water, enhanced shoot development. MS medium supplemented with 2,4-D 2 mg/L, enhanced callus induction of Ficus carica L. Keywords: 2,4-D, morphogenesis, BAP, callus, Ficus carica L.
Landscape plants is one of horticultural plants, wich has a few functions, such as for esthetics plant, giving shade on the road, hedges and absorbing air pollution. Judging from its existence, landscape plants are often facing problem, such as clash with air pollution, as a result of the process of photosynthesis on the plants are disrupted. This research is conducted in two locations in the city of Sidoarjo, at the Alun-alun Sidoarjo area as the control location (L0) and Aloha area as the polluted location (L1). Method to determine tolerance level through calculation of APTI (Air Pollution Tolerance Index) with parameters of leaf pH, water content, ascorbic acid and chlorophyll.
Penelitian bertujuan untuk mendapatkan sumber bibit terbaik komposisi media tanam (tanah: kompos: pupuk kandang kambing) pada budidaya tanaman porang. Penelitian ini merupakan penelitian faktorial dengan 2 (dua) faktor yang disusun dalam Rancangan Acak Kelompok (RAK), dimana faktor pertama adalah macam sumber bibit (B) yang terdiri dari 3 macam sumber bibit yaitu: B1= Biji, B2= Bulbil, dan B3= Umbi. Faktor kedua adalah komposisi media tanam (T) tanah, kompos, dan pupuk kandang kambing terdiri dari 5 taraf yaitu: T1=1:1:1, T2=1:2:1, T3=1:1:2, T4=1:2:3, dan T5=1:3:2. Pengamatan yang diamati meliputi: tinggi tanaman, diameter batang, diameter tajuk, jumlah tunas, masa tumbuh aktif per tunas dan masa tumbuh aktif tanaman, jumlah bulbil per tanaman, bobot bulbil per tanaman, diameter bulbil, bobot umbi, diameter umbi, serta penambahan bobot umbi tanam dan panen. Hasil penelitian memperlihatkan terdapat interaksi nyata antara sumber bibit dan komposisi media tanam terhadap tinggi tanaman umur 7 dan 9 MST, dimana kombinasi perlakuan sumber bibit asal umbi dan komposisi media tanam (tanah: kompos: kotoran kambing 1:1:2 (B3T2) dan 1:2:1 (B3T3) menghasilkan tinggi tanaman porang terbaik. Perlakuan sumber bibit berpengaruh nyata terhadap semua parameter pengamatan kecuali pada diameter bulbil. Sumber bibit Bulbil (B2) menghasilkan bobot umbi dan penambahan bobot umbi terbaik dan berbeda nyata dengan sumber bibit asal biji, namun tidak berbeda nyata dengan sumber bibit asal umbi. Komposisi media tanam tidak berpengaruh nyata pada semua parameter pengamatan.
Penelitian ini bertujuan untuk menentukan konsentrasi yang memberikan pengaruh terbaik untuk induksi kultur jaringan cakram bawang merah. Penelitian ini dilaksanakan pada bulan Agustus sampai November 2017 di Laboratorium Bioteknologi, Fakultas Pertanian, UPN “Veteran” Jawa Timur. Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan 1 faktor dan diulang sebanyak 10 kali. Adapun perlakuan konsentrasi zat pengatur tumbuh terdiri dari 4 taraf perlakuan yaitu Z0 (Kontrol (MS)), Z1 (MS + BAP + 1,5 ppm), Z2 (MS + BAP + 2,5 ppm) dan Z3 (MS + BAP + 3,5 ppm). Parameter yang digunakan adalah persentase daya tumbuh eksplan, persentase eksplan tumbuh akar, persentase eksplan tumbuh tunas, persentase eksplan stagnan, panjang daun, jumlah akar, dan jumlah daun. Data dianalisis dengan ANOVA (Analysis of Variance), dilanjutkan dengan uji BNJ 5%. Hasil penelitian penambahan ZPT BAP dengan konsentrasi 2,5 ppm merupakan perlakuan terbaik terhadap persentase daya tumbuh eksplan, persentase eksplan tumbuh akar, persentase eksplan tumbuh tunas, persentase eksplan stagnan, jumlah akar, jumlah daun dan panjang daun.
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