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Santika Sari
Fakultas Pertanian UNPAD
Agriculture, Biological Sciences & Forestry Education

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Aplikasi Kompos Gulma Siam Chromolaena odorata terhadap Sifat Kimia Tanah dan Performa Tanaman Cabai Vira Kusuma Dewi; Nugoho Susetyo Putra; Benito Purwanto; Sri Hartati; Santika Sari
Soilrens Vol 16, No 1 (2018)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (812.865 KB) | DOI: 10.24198/soilrens.v16i1.18353

Abstract

Chromolaena odorata (L.) is a potential compost since it has high biomass and contains calcium, manganese, potassium and nitrogen. The aim of this research was to know the potency of siam weed Chromolaena odorata compost on soil chemical and chili plant performance. The experiment was arranged in factorial randomized block design consisted of two factors and three replications. The first factor was variety of fertilizer (no fertilizer, cow manure, siam weed compost and inorganic fertilizers) and the second one was the tanglefoot (with and without tanglefoot). Overall, the results of study showed that C. odorata compost could increased crop performance when compared with the other fertilizers in terms of number of fruits, fresh/dry weight of fruits, dry weight of crops, and N-total (leaf, stem, root and fruit), though there was no difference in fresh weight of crops among treatments. Furthermore, the effect of siam weed compost was not significantly different on soil chemical if compared with all treatments. This study is likely suggesting that C. odorata compost gives a positive effect to crops performance and soil chemicals.Keywords:  Chili, Chromolaena odorata, compost  fertilizer, tanglefoot
Kelimpahan dan Keanekaragaman Predator Laba-Laba pada Ekosistem Sawah Padi Hitam (Oryza sativa L.) Berpupuk Organik Vira Kusuma Dewi; Octaviani Octaviani; Santika Sari; Sri Hartati; Toto Sunarto; Lilian Rizkie; Yongki Umam Sandi
Agrikultura Vol 30, No 3 (2019): Desember, 2019
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.605 KB) | DOI: 10.24198/agrikultura.v30i3.25795

Abstract

Laba-laba merupakan salah satu predator penting dalam mengatur populasi serangga hama di ekosistem padi. Aplikasi pupuk ampas bungkil mimba dan kompos gulma siam diharapkan meningkatkan keberadaan laba-laba. Tujuan penelitian adalah untuk menganalisis kelimpahan dan keanekaragaman laba-laba pada ekosistem sawah padi hitam berpupuk organik asal ampas bungkil mimba dan gulma siam. Percobaan dilaksanakan di Cinenggang, Desa Cileles, Kecamatan Jatinangor, Kabupaten Sumedang, sejak bulan Mei – November 2018. Penelitian dilakukan dengan metode Rancangan Acak Kelompok (RAK) dengan lima perlakuan yaitu kontrol, NPK, pupuk ampas mimba, kompos gulma siam, dan pupuk kandang sapi dengan dilakukan enam ulangan. Hasil penelitian diperoleh delapan famili laba-laba yaitu Tetragnathidae, Pholcidae, Linyphiidae, Lycosidae, Theridiidae, Oxyopidae, Clubionidae dan Araneidae. Famili yang paling dominan pada semua perlakuan adalah Tetragnathidae, dan selanjutnya diikuti oleh Famili Pholcidae dan Linyphiidae. Jumlah total laba-laba, indeks keragaman, kelimpahan, kekayaan dan kemerataan spesies diketahui cenderung lebih tinggi pada perlakuan pupuk ampas bungkil mimba dan kompos gulma siam daripada perlakuan NPK dan kontrol.
Ketahanan Padi Transgenik Db1 Terhadap Wereng Coklat (Nilaparvata lugens Stal.) Biotipe 3 (Resistance of Db1 Transgenic Rice to Biotype 3 of Brown Planthopper (Nilaparvata lugens Stal.) Nono Carsono; santika sari; danar dono; kinya toriyama
Zuriat Vol 30, No 1 (2019): Latest Issue (April 2019)
Publisher : Breeding Science Society of Indonesia (BSSI) / PERIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (185.159 KB) | DOI: 10.24198/zuriat.v30i1.23150

Abstract

Brown planthopper has been recognized as a primary pest of rice in Indonesia and most Asian countries. Developing rice lines resistant to this pathogen is an effective and environmentally friendly approach. Rice cv. Taichung 65 has been transferred with Db1 gene from yam tuber Dioscorea batatas, to improve its resistance to insect pathogen. The rice plant, however, is not been known yet of its resistance to biotype 3 of brown planthopper from Indonesia. The objective was to obtain resistance level of Db1 transgenic rice against biotype 3, the brownest planthopper attacking rice. The experiment was arranged in randomized block design, and some tests performed were screening resistance, honeydew test, and the oviposition preference. Results indicated that Db1 Taichung transgenic rice had improved resistance level as compared to its wild type; from very susceptible to susceptible. Db1 transgenic rice line had a lower resistance level compared to those of cv. PTB33, Rathu Heenati, Ciherang, Babawee, IR64, dan Cisadane. It could be seen from a higher amount of honeydew excreted and a number of an egg laid by brown planthopper compared to those of tested cultivars.  It is concluded that DB1 transgenic line is susceptible, then it is not sufficient to control brown planthopper specifically biotype 3.
Co-Authors Benito Purwanto danar dono kinya toriyama Lilian Rizkie Nono Carsono Nugoho Susetyo Putra Octaviani Octaviani Sri Hartati Toto Sunarto Vira Kusuma Dewi Yongki Umam Sandi