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Tyas Soemarah Koernia Dewi
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Materials Science & Nanotechnology

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EFEKTIVITAS SENYAWA AKTIF DAUN SELASIH SEBAGAI PENGENDALI Aphid Spp Tyas Soemarah Koernia Dewi; Endang Suprapti; DARYANTI DARYANTI
JURNAL ILMIAH AGRINECA Vol. 12 No. 2 (2012): AGRINEÇA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v12i2.181

Abstract

Basil (Ocimum basillicum) is one of plant which can be used for biopesticide. The research was carried out at Balai Penelitian Tanaman Obat Tawangmangu ( BPTOT ) and Faculty of Agriculture Tunas Pembanguan University, Surakarta, to find out sum of actif compound of basil, dose and consentration effective for controlled Aphid Spp. on red pepper chili. The result of chromatographi analist showed that volatile oil 0,560%, yellow, geraniol 20,00%, methyl eugenol 30,04%, and sitrol 41,45%. Based of that result, carry out to controlled Aphid Spp. on red pepper chili at Green House Faculty of Agriculture, Tunas Pembangunan University, Surakarta. The parameters were population of Aphid Spp., attact intensity, height of plant, weight of fresh crown, weight of dry crown, sum of red pepper chili, sum of green pepper chili, weight of red pepper chili, and weight of green pepper chili. The result showed that dose and consentration of active compound of basil significant fot attact intensity and weight of red pepper chili.
PENGARUH BERAT MEDIA DAN INTERVAL PEMBERIAN PUPUK CAIR TERHADAP PERTUMBUHAN DAN HASILTANAMAN PAKCHOY DALAM POLIBAG Daryanti Daryanti; Tyas Soemarah Koernia Dewi
JURNAL ILMIAH AGRINECA Vol. 17 No. 2 (2017): JURNAL AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v17i2.641

Abstract

Pakchoy (Brassica Chinensis L) or sawi sendok is one type of vegetabel which is much needed by Indonesian. Organik pakchoy cultivation could be done on limited land by using polybags. This research aims to know the impact of media volume and application of liquid fertilizer towards growth and yield of pakchoy plantation in the polybags. This research has been done at Desa Pojok, Kecamatan Mojogedang, Kabupaten Karanganyar on April 1 till May 6 2017. This research are using a complete randomized design with two different treatment. The first factor, media with code (B), consists of 3 extent i.e. B1 = 2 kg media (placed on 20x20 polybag size), B2 = 3 kg media (placed on 25x25 polybag size) and B3 = 4 kg media (placed on 35x35 polybag size). The media is soil mixed with solid organik fertilizer with proportion 1 : 1. The second treatment factor is the application interval of liquid organik fertilizer, coded as (P) consists of P0 = without treatment, P1 = once every five days, P2 = once every ten days. The result shows that : (1) The weight of the media has no significant effect toward height of the plant, the length of leaves, leaf width and dry weight of the plant, but it has distinctive impact on the number of leaves also fresh weight of the plant and the pakchoy consumption weight. (2) The application interval of liquid organik fertilizer has no significanteffect toward height of the plant and the length of leaves, it has effect toward leaf widht and dry weight of the plant also the number of leaves, fresh weight of the plant and consumption weight. (3) The combination of both treatment (weight of the media and application interval of liquid organik fertilizer) has no significant interaction with all of the growth parameters.
PENGARUH BERAT MEDIA DAN INTERVAL PEMBERIAN PUPUK CAIR TERHADAP PERTUMBUHAN DAN HASILTANAMAN PAKCHOY DALAM POLIBAG Haryuni Haryuni; Teguh Supriyadi; Tyas Soemarah Koernia Dewi
JURNAL ILMIAH AGRINECA Vol. 17 No. 2 (2017): JURNAL AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v17i2.642

Abstract

Fusarium oxysporum f.sp. vanillae is a pathogenic fungi for vanili plants. The fungi have chitin cell wall that can be degraded by chitinase from chitinolytic  Rhizoctonia binucleate of fungi. Aim of this research was determine how the interaction between the  F. oxysporum f.sp. vanillae  and Rhizoctonia binucleate were isolated from plant rizosfere. Chitinolytic activity were measured based on the clear zone around the colony in chitin medium. Interaction of fungi were determined by an antagonistic test. This research showed that Rhizoctonia binucleate  is  chitinolytic,  antagonist and alternative of biofungiside to F.oxysporum f.sp. vanillae.
Co-Authors DARYANTI DARYANTI Endang Suprapti Haryuni Teguh Supriyadi