Ellis Nihayati

Pisang Cavendish (Musa acuminata AAA) merupakan komoditas hortikultura bernilai ekonomi tinggi dengan permintaan yang terus meningkat di Indonesia. Meskipun produksinya naik dari 8.741.147 ton pada 2021 menjadi 9.245.427 ton pada 2022 (BPS, 2023), produktivitas masih terkendala fluktuasi iklim. Bibit hasil kultur jaringan banyak digunakan karena mempercepat ketersediaan benih, namun sistem perakarannya belum optimal sehingga memerlukan perlakuan tambahan pada fase aklimatisasi. Aplikasi auksin dapat merangsang pertumbuhan akar, sementara pupuk NPK menyediakan unsur hara makro esensial untuk mendukung pembentukan protein, enzim, dan klorofil. Penelitian ini bertujuan untuk menentukan konsentrasi auksin dan dosis pupuk NPK yang optimal untuk menghasilkan bibit pisang Cavendish berkualitas. Penelitian dilaksanakan pada Maret-Mei 2025 di Nursery PT. Nusantara Segar Abadi, Blitar, dengan rancangan acak kelompok faktorial dua faktor: konsentrasi auksin (0; 10; 20 ppm) dan dosis pupuk NPK (0; 2,5; 3,5 g tan-1), dengan 3 ulangan dan total 27 satuan percobaan, masing-masing berisi 8 tanaman. Parameter yang diamati meliputi tinggi tanaman, jumlah daun, luas daun, lingkar batang semu, kadar klorofil, dan volume akar. Data dianalisis menggunakan analisis ragam pada taraf 5% dan dilanjutkan dengan uji BNJ bila terdapat pengaruh nyata. Hasil penelitian menunjukkan adanya interaksi antara konsentrasi auksin dan dosis NPK. Konsentrasi auksin 10 ppm dengan NPK 3,5 g tan-1 meningkatkan volume akar, sementara kombinasi auksin 10 ppm dengan NPK 2,5 g tan-1 memberikan peningkatan signifikan pada seluruh parameter pertumbuhan. Temuan ini menegaskan potensi aplikasi auksin dan pupuk NPK untuk mendukung pertumbuhan bibit pisang Cavendish hasil kultur jaringan.

Citronella (Cymbopogon nardus L.) is an economically valuable commodity in Indonesia which is used in perfumes, insect repellents, and for its aromatic properties. The plant could be cultivated with other crops in intercropping to optimize of agricultural land. Intercrops might challenge with...

Effect of Shade Level on Two Stevia (Stevia rebaudiana B.) Planting Materials

Aplikasi pupuk anorganik merupakan hal yang wajar dalam praktek budidaya tanaman. Begitu pula yang dilakukan oleh para petani mawar yang ada di Desa Gunungsari, Kota Batu. Namun aplikasi yang dilakukan sering kali melebih dosis yang ditentukan. Sehingga perlu adanya upaya untuk mengurangi penggunaan pupuk anorganik agar dapat meningkatkan nilai guna mawar. Tujuan kegiatan ini yaitu untuk mengedukasi petani mengenai kelebihan dan kekurangan pupuk organik dalam rangka mengurangi bahan kimia sintetik dalam budidaya tanaman serta demonstrasi pembuatan pupuk organik dari limbah sisa panen mawar sebagai pengganti pupuk kimia sintetik. Kegiatan dilakukan secara luring mulai dari Mei hingga Desember 2022. Kegiatan diawali dengan diskusi dan penyuluhan mengenai pengenalan pupuk organik sebagai pengganti pupuk kimia sintetik, kemudian dilanjutkan dengan praktik lapang pembuatan kompos dan evaluasi keberhasilan program. Penyuluhan mengenai pupuk telah dijelaskan dengan baik dan meningkatkan minat para petani untuk mengolah limbah sisa panen mawar menjadi pupuk kompos. Pembuatan pupuk kompos dari limbah sisa panen mawar dapat memberikan manfaat terhadap petani berupa berkurangnya biaya pupuk, keuntungan produksi yang lebih tinggi serta berukurangnya limbah. Para petani berharap perlu adanya sosialisasi dan pelatihan yang berkala untuk dapat memantau perkembangan dan pengolahan pupuk dari limbah sisa panen mawar.

Salt stress and infrequent watering application obstruct sweet basil growth and yield. But both condition can increase flavonoid production. The aim of this research is to get tolerant level of sweet basil plant on various salt concentration and watering frequency with several parameters consists of growth, yields, and flavonoid contents. The research was conducted from October 2021-January 2022 at the greenhouse of Petahunan Village, Pasuruan City. The method used was a factorial of randomized block design with various watering frequency consisist of once a day (W0), once on two days (W1), and once on three days (W2). Various salt concentration consists of 0 ppm (N0), 1000 ppm (N1), 2000 ppm (N2), 3000 ppm (N3), and 4000 ppm (N4). There is an interaction between saline medium and infrequence watering, whenever with more watering can decrease saline effect on plant primary metabolism. Interaction betweet saline medium and infrequence watering inhibit plant vegetative growth. But saline that interaction can improve sweet basil yields such us flowers, seeds, and also flavonoid contents on leaves. The research conclusion is that interaction between saline medium and infrequence watering obstructed vegetative growth, but increase yields and flavonoid contents.

Red onions are one of the agricultural products with a relatively high demand for the consumer market in Indonesia, but the productivity figure is quite low when compared to other countries (FAO, 2021). This study seeks to explore the effectiveness of the application of amino acid fertilizer and triacontanol in increasing the yield and yield components of red onions. Employing a randomized block design, this study used 2 factors, which are amino acid fertilizers (A1: 1000 ppm; A2: 3000 ppm; A3: 5000 ppm) and triacontanol (T0: 0 ppm; T1: 5ppm; T2: 10 ppm). Each combination is repeated 3 times. As a results, amino acid fertilizers can significantly affect the number of red onions bulbs, yields per hectare, economic weight, and economic weight loss. The interaction of characters of bulb length was shown in the combination of 5-10 ppm triacontanol with amino acid fertilizer. The best response, which ranged from 10.64% to 11.67%, was noted in fertilizer with 5000 ppm of an amino acid fertilizer. As the concentration of amino acid fertilizer in combination with triacontanol increased, the total bulb fresh weight increased as well, in which, 5000 ppm of amino acid fertilizer could increase the weight by 45,23-45,43 g clump-1, which was greater than the response of the 1000 ppm amino acid fertilizer combination.

One aim of productivity improvement on red beet was to restrain over-reducing the betacyanin as a secondary metabolite. Different nitrogen (N) sources were projected to affect growth, yield, and both primary and secondary plant metabolites. The research was carried out to find the effect of different sources and dosages of N on the production improvement and betacyanin. The N sources consisted of 5Ca(NO₃)₂NH₄NO₃₁₀H₂O, NH₄NO₃NH₄H₂P0₄KCI, NO₃H₂P0₄KCI, CO(NH₂)₂, and (NH₄)₂SO₄ with the N dosages of 75, 150, 225 kg N/ha and without N treatment as a control. The results showed that the enhancement of N dosages increased higher beet root fresh weight (BRFW) for about 42-50% than control. The 5Ca(NO₃)₂NH₄NO₃10H₂O and CO(NH₂)₂ increased BRFW and were higher than other N sources. The said N sources also contributed to 36% and 25% higher total betacyanin (BT) than those of (NH₄)₂SO₄ and control, respectively. BRFW had the similar with BT, yet opposite patterns with betacyanin content (BC). The increase N dosages from any source diminish 20-33% BC, which was correlated with the increase of BRFW and BT following the sigmoidal pattern based on the logistics model during the growing period.

Dayak onions (Eleutherine palmifolia Merr) are a potential commodity that has many health benefits, so it has a high economic value. However, this Dayak onion plant has not received much attention in cultiva¬tion technology, especially fertilization. So far, this onion has grown relying on nature, while the land has diminished its fertility. This study tested a combination of chicken manure and NPK fertilizer to obtain the optimal composition to increase the productivity of Dayak onions. This study used a factorial randomized block design with 3 replications. The first factor consists of the treatment of chicken manure (O1 = control, O2 = 10 ton.ha-1 and O3 = 20 ton.ha-1). The second factor consists of NPK fertilizer (K1 = control, K2 = 100 kg.ha-1 Urea + 150 kg.ha-1 SP 36 + 200 kg.ha-1 KCl, K3 = 200 kg.ha-1 Urea + 150 kg.ha-1 SP 36 + 200 kg.ha-1 KCl, and K4 = 300 kg.ha-1 Urea + 150 kg.ha-1 SP 36 + 200 kg.ha-1 KCl). The results showed that there was an interaction effect between the composition of chicken manure and NPK on the number of leaves, fresh weight of tubers, and dry weight of tubers per clump but did not affect the growth of plant height. The yield of Dayak bulbs of 62.60 g / clump was obtained in the composition of chicken manure of 20 tonnes.ha-1 with an NPK of 200 kg.ha-1 Urea + 150 kg.ha-1 SP 36 + 200 kg.ha-1 KCl. From an economic perspective, the composition is very efficient and feasible, which is indicated by R / C> 1, namely 5.75, which means that with a certain unit cost, it can get 5.75 times the revenue.

Ekstrak rimpang temulawak (Curcuma xanthorriza Roxb.) memiliki sifat alelopati yang berasal dari senyawa metabolit sekunder. Senyawa metabolit tersebut menghambat pertumbuhan tanaman sehingga dapat dimanfaatkan sebagai bioherbisida. Rumput teki ialah gulma yang sering tumbuh pada lahan budidaya tanaman kedelai, sehingga perlu dikendalikan. Penelitian ini bertujuan untuk mempelajari potensi ekstrak rimpang temulawak pada rumput teki dan mendapatkan konsentrasi ekstrak rimpang temulawak yang dapat menekan pertumbuhan rumput teki tetapi tidak menghambat perkecambahan kedelai. Penelitian dilaksanakan pada bulan Maret hingga April 2015 yang terbagi dalam tiga tahap penelitian. Penelitian pertama dilaksanakan di Laboratorium Sumberdaya Lingkungan menggunakan Rancangan Acak Lengkap. Penelitian kedua dan ketiga bertempat di Rumah Kaca Fakultas Pertanian Universitas Brawijaya, masing - masing menggunakan Rancangan Acak Lengkap dan Rancangan Acak Kelompok. Penelitian ini terdiri atas 6 perlakuan yaitu P0 (kontrol), P1 (konsentrasi 20%), P2 (konsentrasi 40%), P3 (konsentrasi 60%), P4 (konsentrasi 80%), P5 (konsentrasi 100%) dan 4 kali ulangan. Hasil penelitian menunjukan bahwa konsentrasi 20% ekstrak rimpang temulawak mampu menekan pertumbuhan tunas rumput teki. Peningkatan konsentrasi ekstrak rimpang temulawak hingga 60% mengakibatkan pertumbuhan tanaman rumput teki tertekan. Pengaruh ekstrak rimpang temulawak pada penghambatan perkecambahan terlihat pada perlakuan konsentrasi 60%. Rhizome extract of temulawak (Curcuma xanthorriza Roxb.) has residue properties derived from secondary metabolites. The metabolites inhibit the growth of plants, and it can be used as bioherbicide. Cyperus rotundus is a common weed that grows in soybean cultivation and it needs to be controlled. This research aimed to study the potential of temulawak rhizome extract on Cyperus rotundus and get temulawak rhizome extract concentration that can suppress the growth of Cyperus rotundus without inhibiting the germination of soybeans. The experiment was conducted on March to April 2015 and divided into three experiments. The first experiment was conducted in the Laboratory of Environmental Resource using completely randomized design. The second experiment and third experiments placed in Greenhouse UB Faculty of Agriculture, each using completely randomized block design and randomized block design. This study consisted of six treatments that were P0 (control), P1 (20% concentration), P2 (40% concentration), P3 (60% concentration), P4 (80% concentration), P5 (100% concentration) and four replications. The results showed that 20% concentration of temulawak rhizome extract can suppress Cyperus rotundus. Increasing concentration of temulawak rhizome extract up to 60% suppress growth of Cyperus rotundus. Temulawak rhizome extract significantly inhibited germination of soybeans at concentration of 60%.