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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu-Ilmu Pertanian

Pitri Ratna Asih

Departemen Agronomi dan Hortikultura, Fakultas pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti Kampus IPB Darmaga 16680, Indonesia

Author-ID : 234888

Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Seed Coating Sebagai Pengganti Fungsi Polong pada Penyimpanan Benih Kacang Tanah Sari, Maryati; Widajati, Eny; Asih, Pitri Ratna
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 41 No. 3 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRAKPenelitian ini bertujuan untuk mencari alternatif pengganti fungsi polong dalam melindungi viabilitas benih kacangtanah selama penyimpanan, sehingga dapat menekan volume dan bobot dalam penyimpanan dan distribusi. Penelitiandilakukan pada benih kacang tanah varietas Kelinci. Percobaan dilaksanakan dengan rancangan petak terbagi. Petakutama adalah periode simpan, yaitu 0, 4, 7, 10, 13, dan 16 minggu. Anak petak adalah perlakuan pelapisan benih, yangterdiri atas benih dalam polong, benih kupas tanpa coating, benih kupas dengan coating arabic gum, coating arabic gum+ 0.5 g benomil L, coating arabic gum + 100 ppm, 150 ppm, dan 200 ppm tepung kurkuma, coating arabic gum + asamaskorbat 150 ppm, 250 ppm, dan 350 ppm. Hasil penelitian menunjukkan perlakuan coating + 0.5 g benomil L-1 danperlakuan coating + 350 ppm asam askorbat mampu mempertahankan daya berkecambah dan indeks vigor terbaik selamapenyimpanan. Kedua perlakuan tersebut nyata memberikan nilai indeks vigor yang lebih baik (setelah disimpan selama 16minggu, masing-masing memiliki nilai indeks vigor 40.2% dan 45.8%) dibandingkan perlakuan benih kupas tanpa coating(32.9%) dan perlakuan penyimpanan benih dalam polong (28.2%).Kata kunci: Arachis hypogaea L., pelapisan benih, penyimpanan benih, viabilitas benih

Isolasi Rhizobakteri dan Pengaruh Aplikasinya dengan Pupuk N-P terhadap Mutu Benih dan Pertumbuhan Bibit Tetua Betina Jagung Asih, Pitri Ratna; Surahman, Memen; Giyanto, dan
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 45 No. 3 (2017): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Increased productivity of maize can be done with the use of high quality seeds from improved varieties such as hybrid seed. The objectives of this study were Increasing productivity of maize female parent is important in order to reduce the price of hybrid seed. The objectives of this study were to determine the nitrogen fixing bacteria compatible with phosphate solubilizing bacteria (PSB), and using those bacteria to increase physiological seed quality and seedling growth of maize female parent. The research consisted of laboratory and field experiments. Laboratory experiment for the isolation and identification of rhizobacteria resulted in 25 Azotobacter and 29 Actinomycetes non-pathogenic isolates capable of fixing nitrogen and PSB selected for compatibility tests were AB3, B28, P12, P14, P24, and P31. The compatibility test showed 25 pairs of BPF with Azotobacter and 16 pairs of BPF with Actinomycetes were mutually compatible. The BPF pair with Azotobacter or Actinomycetes P24-AzL7, P24-AzL9, B28-AcCKB4, P24-AcCKB9, P24-AcCKB20, and P24-AcCKW5 were able to increase the vigor index of hybrid maize female parent seed. Field experiment was arranged in a split plot design with three replications. The main plot was dosage of N-P fertilizer (0%, 25%, 50%, 75%, and 100% of recommendation dosage), and the subplot was 12 rhizobacteria treatments selected from 25 compatible pairs of BPF with Azotobacter and 16 pairs of BPF with Actinomycetes and 1 control. The application of compatible pairs of bacteria had a significant effect on plant height, the number of leaves at 3 and 4 weeks after planting and plant dry weight. However, the best treatment i.e. B28-AcCKB4 was not significantly different with the nutrient broth treatment (as control).

Co-Authors Agus Wartapa, Agus Asih Farmia Eny Widajati Febriani, Dian Putri Giyanto, dan Maryati Sari Memen Surahman Sukadi Sukadi Wisesa , Cindekia Purba

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