The most efficient and effective propagation of guava plants is by using stem cuttings. The main obstacle in the multiplication of guava with stem cuttings is the root system. Plant Growth Regulators are needed to accelerate and increase the roots of guava stem cuttings to obtain quality seeds. Plant growth regulators that can be used to accelerate guava growth include Indole Butyric Acid, Naphtalene Acetic Acid. However, both growth regulators are not available at the farm level. One alternative material that can increase the growth of guava cuttings is shallot extract. Information is needed to find out what is the right concentration of shallot extract to get guava seedlings with high growth percentage and quality. The purpose of this study was to determine the exact concentration of shallot extract on the growth of guava root cuttings. The research method used was a single factor experimental which was arranged in a Completely Randomized Design. The treatments tested were without plant growth regulators (as a control), fresh shallot extract concentration of 1%, maceration of shallot extract concentrations of 1%, 2%, and 3%, IBA with a concentration of 500 ppm (as a comparison). Guava stem cuttings before planting are soaked in the treatment solution for 120 minutes. During seedling growth, observations of roots, stems and leaves are observed. Observation data were analyzed by analysis of variance and Duncan Multiple Range Test. The results showed that the concentration of maceration of shallot extract 2% was able to grow roots and shoots with the same quality as IBA concentration of 500 ppm on crystal stem guava stem cuttings.
A research to study the sterilization method and application of Kinetin and IAA to induce the Durian young leaf (Durio zibethinus) in MS medium was conducted in Balai Benih Induk Hortikultura in Salaman Magelang district of Central Java started on September until December 2003. The Laboratory experiment was arranged in two phases, which were the optimation phase of sterilization and induction phase. At the first phase, the sterilization method used was the modification of Mulya (2001) method. The modification use of sterilant, vitamin C antioxidant, Alcohol 70 %, Benlate, Agrept, Tween-20 and Betadine were done to obtain effectiveness of the sterilization. Explants planted then in MS medium for two weeks. Contamination time, percentage of contamination and viabilitas (percentage of living explants) were observed then. At the second phase, the treatments were arranged in a 3 x 3 factorial completely randomized design (CRD) to observed the influence of Kinetin and IAA combination. The concentration of Kinetin observed were 2, 4, and 6 mg/I, where as the IAA concentration were 0.5, 1.0, and 1.5 mg/I. All treatments were repeated three times, with three samples on each replication. The percentage of browning explants, percentage of contaminated explants, site of contamination and percentage of explants live were observed at the end of incubation. The results showed that sterilization of Durian young leaves explants with 1 g/l deterjent for 15 minutes then by 2 g/l Benlate and Agrept for 10 minutes, then by 1 g/200 mg Vitamin C, then by Alcohol 70 % for 1 minute, then by 20% Clorox, then by 2 drip of Tween-20 for 10 minute and then by Betadine decreased the contamination down to 50 %, and this kind of sterilization was relatively better than the other kinds. Application of growth regulators were not able to induce explants growth, but stimulated callus formation at the cutting surface though, in the application of Kinetin 4 mg/1 + IAA 0,5 mg/I, Kinetin 4 mg/1 + IAA 1,5 mg/1, Kinetin 6 mg/I+ IAA 0,5 mg/1 and Kinetin 6 mg/l+IAA 1,0 mg/I.
Dasa Wisma Alamanda berada di Dukuh Tangkilan, RT 7 dan RW 23, Desa Sidoarum, Kecamatan Godean, Kabupaten Sleman. Permasalahan yang dihadapi anggota Dasa Wisma Alamanda diantaranya pemahaman dan keterampilan yang kurang untuk budidaya sayuran di lahan sempit. Selain itu kondisi rumah dengan halaman terbatas karena berada di area perumahan juga menjadi masalah dalam budidaya sayuran. Solusi yang ditawarkan adalah penyuluhan serta praktik budidaya sayuran di lahan sempit. Metode yang digunakan untuk mencapai tujuan tersebut melalui penyuluhan, pelatihan, demonstrasi, dan pendampingan budidaya sayuran di lahan sempit. Hasil penyuluhan, pelatihan, dan praktik budidaya sayuran di lahan sempit menunjukkan bahwa pemahaman anggota Dasa Wisma Alamanda terhadap pengetahuan dan praktik budidaya sayuran di lahan sempit mencapai 84,4% sebelum dilakukan penyuluhan, pelatihan serta praktik budidaya sayuran. Pemahaman tersebut meningkat menjadi 98,3% setelah mengikuti penyuluhan, pelatihan dan praktik budidaya sayuran di lahan sempit. Seluruh peserta melakukan praktik budidaya sayuran di halaman rumah masing-masing dan menyatakan senang serta terkesan setelah mengikuti pelatihan dan praktik penanaman sayuran tersebut. Sebanyak 30% dari total peserta bahkan telah berkreasi melakukan penanaman sayuran di halaman rumahnya dengan variasi wadah tanam selain yang digunakan pada saat pelatihan melalui pemanfaatan barang bekas. Pengabdian masyarakat telah meningkatkan pemahaman dan praktik budidaya sayuran di lahan sempit bagi anggota Dasa Wisma Alamanda.
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