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All Journal Jurnal Ilmu Pertanian Indonesia Perkebunan dan Lahan Tropika JURNAL PERBENIHAN TANAMAN HUTAN JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Kebijakan dan Pelayanan Publik Jurnal Perlindungan Tanaman Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
. Supriyanto
Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Tanjungpura Jl. Imam Bonjol Pontianak 78124
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences

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Journal : JURNAL PERBENIHAN TANAMAN HUTAN

 1 
Seed Breaking Dormancy Technique and Growth of Screw Tree (Helicteres isora Linn.) Seedlings Nazhira Firda Yulia; . Supriyanto; Diana Prameswari
Jurnal Perbenihan Tanaman Hutan Vol 9, No 1 (2021): Jurnal Perbenihan Tanaman Hutan
Publisher : Forest Tree Seed Technology Research & Development Center (FTSTRDC)/ Balai Penelitian dan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/bptpth.2021.9.1.43-58

Abstract

Screw tree is a shrub from family Malvaceae that has many benefits in pharmacy. Screw tree seed has very hard seed coat, so the seed must be treated before germination. The aim of this research was to assess the characteristic of fruit and seeds, effect of seed breaking dormancy, and effect of NPK fertilizer dosage on the growth of screw tree (Helicteres isora) seedlings. The results indicated that screw tree fruits belong to dry fruits with capsule form and has 5 follicles that has different direction. Screw tree seed is orthodox type that has 9 ̶ 36 seeds in one follicle with triangle and square shape. Germination technique in laboratory with soaking the seeds in hot water 100oC until the water cool for 48 hours treatment produced the best germination amounting to 65.0%.  Germination technique in green house with soaking the seeds in hot water 100oC until the water cool for 24 hours treatment was the best germination amounting to 77.0%. Seedlings fertilized with 1 g NPK doses increased screw tree growth in diameter parameter of 6.35 mm and shoot-root ratio parameter of 3.9 compared to control. 
Co-Authors . Nurwansyah Achmadi Priyatmojo Achmadi Priyatmojo Ade Aldiansyah Zaedar agus ruliyansyah Arum Sekar Wulandari Dede Solehudin Diana Prameswari Erna Pangestu Hannum Wulan Febrianingrum Henny Sulistyowati Heny Wulandari Imam Suswanto Iman Suswanto Jajat sudrajat Komariyati Komariyati Maghfiroh Maghfiroh Muhammad Pramulya Nazhira Firda Yulia Nur Arifin Nur Arifin Nursadin Nursadin Purwanto Purwanto S H Poromarto Sarbino Sarbino Saripudin Saripudin Supyani Supyani Triwidodo Arwiyanto Triwidodo Arwiyanto Zakiatulyaqin Zakiatulyaqin