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IDENTIFIKASI DAN TEKNIK PENGENDALIAN HAMA DAN PENYAKIT BIBIT KRANJI (Pongamia pinnata) Tati Suharti; Rina Kurniaty; Wida Darwiati
Jurnal Perbenihan Tanaman Hutan Vol 3, No 2 (2015): 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.2015.3.2.71-80

Abstract

Salah satu faktor pembatas dalam keberhasilan tanaman untuk tumbuh optimal yaitu adanya serangan hama dan penyakit. Identifikasi hama dan penyakit penting dilakukan karena berkaitan dengan teknik pengendalian. Tujuan penelitian ini adalah untuk mengetahui jenis hama dan penyakit yang menyerang bibit kranji (Pongamia pinnata) dan teknik pengendaliannya. Metode penelitian meliputi identifikasi jenis hama dan penyakit serta teknik pengendalian dengan menggunakan pestisida biologi dan kimia. Hasil penelitian menunjukan, hama yang menyerang bibit kranji antara lain belalang (Valanga nigricornis), ulat grayak (Spodoptera sp.), ulat jengkal (Hyposidra talaca) dan ulat penggulung (Syllepta sp.) sedangkan patogen yang menyebabkan penyakir hawar daun yaitu Phytophthora sp. Teknik pengendalian hama bibit kranji dengan menggunakan larutan ekstrak biji mahoni atau insektisida Bacillus thuringiensis sedangkan teknik pengendalian penyakit menggunakan larutan ekstrak biji mahoni, larutan ekstrak daun cengkeh atau benomil
The Physical, Physiological Quality and Biochemical Content of Trema (Trema orientalis Linn.Blume) Based on Maturity Level Naning Yuniarti; Rina Kurniaty; NFN Danu; Nurmawati Siregar
Jurnal Perbenihan Tanaman Hutan Vol 4, No 2 (2016): 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 | Full PDF (558.5 KB) | DOI: 10.20886/bptpth.2016.4.2.53-65

Abstract

Trema orientalis L. Blume is a multipurpose plant for all parts of the tree can be used. In order to support the successful development of this plant, seed quality is required, in which one of the requirements for determining quality seed is the seed should come from physiologically fruit mature. The research objective was to determine the quality of the physical, physiological quality, and a biochemical content (fat, carbohydrate and protein) of trema seed based on of fruit maturity. Trema seed used in this research comes from Badung regency, Bali Province. Trema fruit grouped into three color level (green, brown, black). The research design used is CRD (completely randomized design) with a treatment rate of fruit color. Parameters were observed ie. fruit and seed size, the weight of the fruit and seeds, fruit and seed moisture content, content of biochemistry (protein, fat, carbohydrates), germination and speed germination. The results showed: (1) The level of maturity of the fruit significantly affects the physical quality (size of fruit and seeds, fruit weight and seed, the water content of fruits and seeds), physiological (germination, speed of germination), and the content of biochemistry (fats, carbohydrates, protein) trema seed, (2) Quality of physical and physiological seed that comes from the fruit of the black better than the green and chocolate fruit, (3) the content of fats, carbohydrates and protein of trema seed differ for each level of maturity (green, brown, black), (4) Fruit Trema reaching physiological maturity is the fruit of the black with criteria that is : long fruit 3,87 ± 0,05 mm and width 3,41 ± 0,02 mm; long seed 2,10 ± 0,05 mm and width 1,81 ± 0.06 mm; 1000 grain weight of fruit 25.6883 grams; 1000 grain weight of seed 3.8288g; moisture content of fruit 54,74%; moisture content of seed 12,03%; percentage germination 78%; speed of germination 3,05% / Etmal; content of carbohydrate 20,10%; content of protein 2,84% and content of fat 0,65%.