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Dwi Susilo Utami
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Materials Science & Nanotechnology

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PERBAIKAN GENETIK ANGGREK MELALUI PERSILANGAN INTERGENERIK DAN PERBANYAKAN SECARA IN VITRO DALAM MENDUKUNG PERKEMBANGAN ANGGREK DI INDONESIA DWI SUSILO UTAMI; SRI HARTATI
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.v12i2.176

Abstract

The research aimed to get the most suitable media and foliar fertilizer to acclimate plantlet of orchid hybrid resulted from inter generic crossing of Phalaenopsis sp vs Vanda tricolor and to study the difference of the chromosomal structure compared to their parents. The research showed that the best growing media for hybrid seeds of ♀ Vanda tricolor x ♂Phalaenopsis Pinlong Cinderella was pakis, the most suitable fertilizer was Hyponex 2g/l, number of parental chromosomes of Vanda tricolor 2n = 38, while Phalaenopsis pinlongcinderela; Phalaenopsis Joane Killeup June; the hybrid of ♀ Vanda tricolor x ♂ Phalaenopsis joankileup june) and the hybrid of ♀Vanda tricolorx ♂Phalaenopsis Pinlong Cinderella had the same chromosomes, 2n = 40. The chromosome size of V. tricolor ranged (1,94 ± 0,16) µm to (4,72 ± 0,19) µm, while Phalaenopsis Joane Killep June ranged (0,84 ± 0,02) µm to (2,97 ± 0,13) µm, Phalaenopsis pinlong cinderela was from (2,02 ± 0,15) µm hingga(5,91 ± 0,78) µm, the hybrid of ♀Vanda tricolor dengan ♂ Phalaenopsis joankileup june.) was from (1,77 ± 0,20) hingga (1,69 ± 0,24) µm, the hybrid of ♀Vanda tricolor dengan ♂ Phalaenopsis pinlong cinderela)was from (1,86 ± 0,03) µm to (6,74 ± 0,59) µm. The caryotype arrange-ment was also different. Vanda. tricolor 2n = 18 m + 1 sm, Phalaenopsis joankileup June 2n=13 m+7 sm., Phalaenopsis pinlong cinderela 2n = 18 m + 2 sm, while the hybrid of ♀Vanda tricolor x ♂ Phalaenopsis Joankileup june.) and the hybrid of ♀Vanda tricolor dengan ♂ Phalaenopsis pinlong cinderela) had the same karyotype, 2n = 17 m + 3 sm.
PENGIMBASAN KETAHANAN RHIZOCTONIA BINUKLEAT TERHADAP CEKAMAN AIR PADA BIBIT VANILI (Vanilla Planifolia ANDREWS) DARYANTI DARYANTI; HARYUNI HARYUNI; DWI SUSILO UTAMI
JURNAL ILMIAH AGRINECA Vol. 14 No. 1 (2014): JURNAL AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v14i1.271

Abstract

The study, effect of Rhizoctonia binucleat resistance to water stress in seedlings of vanilla (Vanilla planifolia Andrews). This study aimed to determine the ability of thevanilla plant water stress situation with Rhizoctonia binucleat inoculated 30 days afterplanting. The study was conducted at the Faculty of Agriculture, University of wireSurakarta Development Branch. It was designed with a factorial randomizeds design consisting of 2 factors. The first factor Rhizoctonia binucleat inoculation (R) cedar there is no inoculation Rhizoctonia binucleat (R0) and inoculation with Rhizoctonia binucleat (R1). Inoculation was performed after 30 days of planting. The second factor sprinkling water treatment interval (A), consisting of daily watering (A1), 5 days (A2), every 10 days (A3), every 15 days (A4), and every 20 days (A5) . The results showed that the plants were inoculated with Rhizoctonia binucleat better growth and lower percentage of injury plant compared to plants without inoculation of Rhizoctonia binucleat.I
INDUKSI KETAHANAN STRUKTURAL PHALAENOPSIS AMABILIS TERHADAP FUSARIUM SP. DENGAN RHIZOCTONIA MIKORIZA Dwi Susilo Utami; R Soelistijono
JURNAL ILMIAH AGRINECA Vol. 14 No. 2 (2014): JURNAL ILMIAH AGRINEÇA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v14i2.285

Abstract

Phalaenopsis amabilis or better known moon orchids as germplasm in the slopes of Mount Merapi. The existence of this orchid on the wane since the attacks of pathogenic fungi. Fusarium solani is the most attacking pathogen Phalaenopsis sp. orchid (Chung et al., 2011) compared to other pathogenic fungi. Attack of Fusarium sp. will cause rot and yellow colored leaves. Until now there has been known as a biological control against Fusarium sp. Based on previous studies, which are mycorrhizal fungi Binucleate Rhizoctonia (BNR) has the ability to inhibit the growth of Fusarium sp. on horticultural crops, but has not been tried on orchids. Expected prainokulasi mycorrhizal Binucleate Rhizoctonia spp. (BNR) is the orchid seedlings, can inhibit subsequent infection by Fusarium sp. This mechanism is known as a form of induced resistance (induced resistance). The mechanism of induced resistance in plants such as orchids like lignification structural resistance mechanisms and the formation of the structure of the peloton as a condition of their association with Rhizoctonia orchid mycorrhiza. Results platoon formation in Sleman more inetsif disbanding in Surakarta. Formation of a structure lignifikasi in Sleman thicker than the in Surakarta. We hope this research can later be used as a model as a method of induced resistance in other epiphytic orchid plants in Indonesia.
KARAKTERISASI MORFOLOGI DAN ANATOMI ISOLAT RHIZOCTONIA MIKORIZA ANGGREK VANDA LIMBATA WAHYU DWIYANTO; R. Soelistijono; DWI SUSILO UTAMI
JURNAL ILMIAH AGRINECA Vol. 17 No. 1 (2017): JURNAL AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v17i1.563

Abstract

Rhizoctonia mycorrhizal fungi is a group that has a very important role for the plant anggrekan. Endophyte orchid belonging to the genus Rhizoctonia that consists of three species, namely R. repens, mucoroides R., and R. lanuginose. Rhizoctonia fungus colony morphology sp. contained in preparations or isolates no difference because the preparations are equally white as found in isolates. Different characteristics of the mycorrhizal Rhizoctonia root Vanda limbata Flores seen by colony color hyphae, and the number of cell nuclei. Rhizoctonia mycorrhizal hyphae colonies on the roots of the orchid Vanda limbata has mycelium is brown, there are barriers hyphae (septa) therein, and some have 2 cell nucleus. Mycelium Rhizoctonia sp. in isolates Vanda limbata is large While colonies hyphae Rhizoctonia sp. in isolates Vanda limbata known paler brown, do not have septa, and has a core of more than 1. The mycelium Rhizoctonia sp. on the roots of Vanda limbata which tend to tan and smaller. It can be said mycorrhizal Rhizoctonia contained in Vanda limbata included in binukleat like R. repens group that includes orchid mycorrhizal fungi. While mycorrhizal Rhizoctonia contained in Vanda limbata including nature groups such multinucleate R. solani, T. cucumeris, T. pennatus contained orchids. Binukleat or multinucleate Rhizoctonia group as good because it is as mycorrhizae
PENGARUH PEMBERIAN PUPUK BOKASHI TERHADAP PERTUMBUHAN DAN HASIL TOMAT (Lycopersicum esculentum Mill) VERI DWI ARUM P.S; DWI SUSILO UTAMI; TEGUH SUPRIYADI
JURNAL ILMIAH AGRINECA Vol. 19 No. 1 (2019): JURNAL ILMIAH AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (83.912 KB) | DOI: 10.36728/afp.v19i1.829

Abstract

 Awareness of the consequences caused by the effects of agrochemical use, the attention of the world community begins to shift to environmentally have a conception agriculture.Then came the technology known as organic agriculture, which deals with organic and natural products, and overall does not use agrochemicals. Organic farming systems was expected to support and provide benefits in improving agriculture in the long term, improving environmental quality, and improving the quality of life of farmers. ThisResearch activity was carried out in Februari 23 2018 to June 12 2018 in Ngringin Village, Karangpandan District, Karanganyar Regency. This study aims to determine the response of growth and the results of tomato (Lycopersicum esculentum Mill) to bokashi dosage). The research method used a Complete Randomized Block Design (RCBD), consisting of one treatment factor and repeated three times with the level of P1 = 2 tons / ha, P2 = 4 tons / ha, P3 = 6 tons / ha, P4 = 8 tons / ha, P5 = 10 tons / ha, P6 = 12 tons / ha, P7 = 14 tons / ha, P8 = 16 tons / ha, and P9 = 18 tons / ha. This research is the initial process towards organic farming using bokashi fertilizer. The results of this study indicate: 1) Treatment of bokashi dosage of cow manure has a very significant effect on plant height (cm), number of leaves per plant (strands), weight of fresh stover (gram), weight of dry stover (gram), age of flowering (hst) , number of tomatoes per plant (fruit), weight of ripe tomatoes per plant (gram), weight of ripe tomatoes per plot (gram), volume of fruit (ml), weight of green tomatoes per plant (gram), and weight of green tomatoes per plot (gram ) 2) The highest ripe tomato weight is 18.52 tons / ha in P9 treatment (dosage of 18 tons / ha) and the lowest tomato weight is 8.88 tons / ha in P1 treatment (dosage of 2 tons / ha). 3) The highest weight of green tomatoes is 1.1 tons / ha in P9 treatment (dosage of 18 tons / ha) and the lowest weight of green tomatoes is 0.5 tons / ha in P1 treatment (dosage of 2 tons / ha).
Impact of carbofurans on sweet corn pest predators: A study of good agroecosystem practices Sapto Priyadi; Lutfi Ali Setiawan; Dwi Susilo Utami; Achmad Fatchul Aziez; R. Soelistijono; Haryuni
JURNAL ILMIAH AGRINECA Vol. 22 No. 2 (2022): JURNAL ILMIAH AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v22i2.2029

Abstract

Sweet corn (Zea mays var. Saccharata, Sturt) is a horticultural crop with high economic value. Sweet corn plants are susceptible to attack by plant pest organisms, reducing production yields. Using synthetic chemical pesticides of the carbamate group can reduce the diversity of predatory insects as biological controllers. Many farmers do not know about the role of predatory insects in agriculture, so there is often a mistarget in control. This study aimed to determine the diversity of predatory insects on sweet corn. The research was conducted in Cabeyan, Sukoharjo district, using the descriptive observation method. Data collection is done directly. In this study, several types of predatory insects were found, including three species from the Araneae order, two from the Odonata, one from the Hymenoptera, one from the Diptera, and one species from the Coleoptera.
Co-Authors Achmad Fatchul Aziez DARYANTI DARYANTI Dwi Susilo Utami Haryuni Lutfi Ali Setiawan R Soelistijono Sapto Priyadi Sri Hartati Teguh Supriyadi VERI DWI ARUM P.S WAHYU DWIYANTO