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Yosefus F. da-Lopez
Jurusan Manajemen Pertanian Lahan Kering Politeknik Pertanian Negeri Kupang
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KAJIAN HABITAT TUMBUHAN OBAT DI TAMAN WISATA ALAM CAMPLONG Blasius Paga; Yosefus F. da-Lopes
Partner Vol 15, No 2 (2008): Edisi November
Publisher : Politeknik Pertanian Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35726/jp.v15i2.32

Abstract

Study on Medical Plants Habitat in Taman Wisata Alam Camplong. The research aimed to find out the habitat condition of medical plants in Taman Wisata Alam Camplong covering, structure and composition of vegetation, as well as accentual and threat to the medical plants habitat. Collecting data of medical plants habitat covered habitat type, structural and composition of vegetation and accentual/threat to habitat of the plants. Those data were obtained through stocktaking and were analyzed using vegetation analysis. Samples were acquired at line plot of 20 x 1000 m. The line plot, hereinafter, was divided into smaller, depended on growth level and life model of the plants observed. Data of INP (Indeks Nilai Penting = Important Value Index) was to know type of dominant plant (Soerianegara and Indrawan, 1998). The results indicated that habitat type in the area of TWA Camplong included semi fall forest. The highest INP of tree was 42,4884 at taduk (Alstonia scholaris), while, the lowest INP was at papi (wild sandalwood), that is 0,8538. Reviews on licensed online casinos ,bonuses from the online casinos. In level of pillar, the highest INP was 46,3083 at guava species, and the lowest was 2,4062 at haubiabnapa, tati'i, nangkelo. In the stake level, the highest INP was 40,8617 at bamboo and the lowest INP was 2,1032 at haumanikin. In seedling level, the highest  INP was 90,4850 at kirinyu (Chromolena odorata); while, the lowest INP was at talas (INP = 0,9561).Keywords: TWA Camplong, medical plant, habitat, INP
EFEKTIVITAS CENDAWAN ENTOMOPATOGEN ISOLAT LOKAL TERHADAP HAMA KUMBANG UBI JALAR Cylas formicarius FABRICUS Nina Jeni Lapinangga; Yosefus F. da Lopez
Partner Vol 21, No 2 (2016): Edisi November
Publisher : Politeknik Pertanian Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35726/jp.v21i2.219

Abstract

Sweet potato production is plagued by pests Cylas formicarius Fabricus. These pests can be controlled by using entomopathogenic fungus as a biological control agent. Local biological agents will have a better adaptation and higher performance to control pests compared with biological agents which are introduced from other areas. This study aims to explore the local isolate entomopathogenic fungal species, identify and testing the pathogenicity on C. formicarius. Implementation of the study consists of several stages: collection and maintenance of insects, exploration entomopathogenic fungus, and the effectiveness test of entomopathogenic fungal isolates in the laboratory. The entomopathogenic fungus types which can be found in South Central Timor is Metarhizium anisopliae and Beauveria bassiana. Both of these fungi cause mortality in larvae of C. formicarius respectively by 80.75% (Metarhizium anisopliae) and 80.25% (Beauveria bassiana). Therefore, both types of the fungus should be developed as a biopesticide for controlling pests C. formicarius.Keyword : Metarhizium anisopliae, Beauveria bassiana, Cylas formicarius Directory for female scat lovers. Free scat porn videos at ScatNude scat sex tube. Share your favorite scat video clips for free and get tons more in return! Scat Porn Tube Be careful, as it's going to be fun and messy here. At Scat Porn Nude we love going all filthy and dirty watching horny babe playing with poo and shitting all over the place. In case you share our enthusiasm for scat porn, this place full of best scat sex videos will be your favorite place to be!
HASIL PADI GOGO LOKAL-NTT DI BAWAH KONDISI DEFISIT AIR Welianto Boboy; Yos F. da-Lopes
Partner Vol 17, No 2 (2010): Edisi November
Publisher : Politeknik Pertanian Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35726/jp.v17i2.48

Abstract

Yield of NTT Local Upland Paddy under Water Deficit Conditions. This study was to evaluate yield of NTT local upland paddy under drought stress at different growth phases. The research was design in Randomized Block Design, consisted of two factors, i.e. upland paddy cultivars (factor A) and drought stress at different growth phases (factor B). Factor A consists of nine cultivars i.e. Kodi-1, Kodi-3, Kodi-4, Mts-3, Mts-5 Wkb-1, Wkb-2, IR-64, and Grogol; Factor B consists of four levels i.e. control (without drought stress treatment, P0), drought stress of 1 x 120 hours at vegetative growth phase (P1), drought stress treatment of 1 x 120 hours at the generative growth phase (P2), drought stress of 1 x 120 hours at the vegetative and generative phase (P3). Each treatment was repeated three (three) times so there were 108 observation units. The parameters measured were the number of grains per panicle, pithy grain percentage, and dry weight of 100 pithy grains. All the measurement data of each variable were analyzed using analysis of variance (ANOVA) and followed by Duncan multiple range test (DMRT) when there were significant differences among the treatment being tested. The results showed that there were different interaction among NTT local upland paddy cultivars due to the drought stress at different growth phases, in the terms of number of grains per panicle, pithy grain percentage, and dry weight of 100 pithy grains. Based on the number of grains per panicle, Grogol was tolerant to drought stress; whereas, Wkb-2, Wkb-1, and IR-64 were sensitive to drought stress. Refers to the percentage of pithy grains, grogol, MTS-3, and MTS-5 were tolerant to drought stress; meanwhile, Kodi-4 and Wkb-1 were the most sensitive cultivars.Keywords: local upland paddy, drought stress, growth phases
EFEKTIVITAS EKSTRAK BEBERAPA BAHAN NABATI LOKAL SEBAGAI PESTISIDA NABATI DALAM MENGENDALIKAN HAMA BUBUK JAGUNG (Sitophylus zeamays) Yosefus F. da-Lopes; Welianto Boboy
Partner Vol 15, No 2 (2008): Edisi November
Publisher : Politeknik Pertanian Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35726/jp.v15i2.30

Abstract

Effectiveness Several Local Plants Extracts as Botanic Pesticide in Controlling Sitophylus zeamays. The research aimed to know the effectiveness of papaya leaves, piper betle leaves, and nimba leaves, as botanic pesticide in order to control Sitophylus zeamays. The research was arranged in randomized block design, by three replications. The treatments studied consisted of control (without botanic pesticide), extract of papaya leaves, nimbi leaves, and piper betle leaves. Parameter measured consisted of severity and population density of S. zeamays. Data were analyzed using analysis of variance, and were continued with Duncan Multiple Range Test to find out the difference of influence at treatments tried. The results indicated that using of local plants as botanic pesticide affected to severity and population density of S. zeamays (probability < 0.05). Those botanic pesticides were sufficient influential to control S. zeamays. These were performed by level decrease of corn weight. Population density of S. zeamays was still showing hard attack; however, those botanic pesticides are useable in depressing development of S. zeamays.Keywords: S. zeamays, papaya, piper betle, nimba
KETAHANAN BEBERAPA KULTIVAR JAGUNG LOKAL TIMOR TERHADAP HAMA GUDANG Sitophilus zeamais. L Nina Jeni Lapinangga; Jaqcualine A. Bunga; Jemrift H. H. Sonbai; Yosefus F. da Lopez
Partner Vol 24, No 2 (2019): Edisi November 2019
Publisher : Politeknik Pertanian Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35726/jp.v24i2.402

Abstract

Corn kernels that are stored for a longer period are susceptible to pest infestation by Sithopilus zeamais. To overcome these problems, we need environmentally friendly pest control techniques, namely the use of resistant cultivars. This study aims to determine the level of resilience of 22 local Timor corn cultivars against the Sitophilus zeamais L. Pest. The results showed that the highest total population was found in the Muke Bunga Putih cultivar (121 individuals), Desa Kie Dusun 3 (107, 5 individuals), Silawan Kuning (109.5 individuals), Desa Oenlasi Dusun 4 (141.5 individuals), while the lowest total population were in the Haikesak Putih cultivar (11.5 individuals), Tastim 1 Putih (15 individuals), and Tasifeto Timor Biboki Anleu Putih (17 individuals). Bunga Merah Muke cultivar, Pulut Putih Muke cultivar, and Bunga Putih Fatumonas cultivar have the smallest development period (30 days), while Kie Dusun 1 and Malaka 2 Kuning cultivars have the largest development periods (35 days). There are 7 cultivars, namely Haikesak Putih, Tastim 1 Putih, Bunga Merah Fatumonas, Desa Kie Dusun 1, Malaka 1 Putih, Putih Fatumonas and Tasifeto Timur Biboki Anleu Putih that are resistant to S. zeamais pests. Keywords: cultivar, Timor local maize, Sitophilus zeamais. L
Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung Yosefus F. da-Lopez; Y. Andi Trisyono; Witjaksono Witjaksono; Subiadi Subiadi
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1142.827 KB) | DOI: 10.5994/jei.11.2.81–92

Abstract

Asian corn borer, Ostrinia furnacalis Guenée, is known as an important pest of maize, Zea mays L., in both whorl and reproductive stages. Management decisions based on egg-mass density is useful because decision is made before damage occurs. Observation on O. furnacalis egg-mass distribution in maize-field was carried out in Agricultural Training, Research, and Development Station (ATRD) UGM, Yogyakarta. The number of egg-masses laid on each plant surface in maize-field was sampled in reproductive stage of corn at 52 – 58 days after planting. The spatial dispersion was analyzed using the ratio variance-to-mean (σ2/μ = Iδ), Morista’s Index (Iγ), and the negative binomial parameter (κ-value). The results showed that horizontal and vertical distributions were aggregated distributions (σ2 > μ or σ2/μ > 1). In line with the increasing age of plant, the degree of clustering or aggregation likely tended to decline (the κ-value increased, Morisita index decreased) indicating the possible departure from aggregation to randomness (Poison distribution) due to the heterogeneity of the environment, such as microclimate, preferred parts of the plants, and occurrence of natural enemies. The results concluded that the horizontal and vertical distributions of egg-masses of O. furnacalis on corn in generative phase were clustered with the degree of clustering tended to decrease by the increase of age of corn. These findings provide the bases for further study on the ecology and biology of O. furnacalis for management decision-making process.
Asian corn borer (Ostrinia furnacalis Guenee) oviposition preferences on maize (Zea mays Linn), king grass (Panicum maximum Jacq.), and cogon grass (Imperata cylindrica (L.) Yosefus F. da-Lopez; Y. Andi Trisyono; Witjaksono Witjaksono
Jurnal Entomologi Indonesia Vol 17 No 1 (2020): Maret
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.394 KB) | DOI: 10.5994/jei.17.1.23

Abstract

Insects’ oviposition behavior on alternate host plants is very helpful to understand the interaction between host plants and insects, the dynamics of insect populations, and the effectiveness of alternate host plants as refugia in managing insect resistance. The oviposition preference of Ostrinia furnacalis on maize (Zea mays L), king grass (Panicum maximum Jacq.), and cogon grass (Imperata cylindrica (L.) was studied through no-choice test, two-choice test, and three-choice test. The oviposition preferences hierarchy of O. furnacalis on maize, king grass, and cogon grass wass sequentially maize > king grass > cogon grass when the tested plants were at 21 DAP (days after planting). However, the hierarchy pattern may change depending on host plants phenology. The 35-day-old king grass was more preferred by O. furnacalis (proportion of eggs = 0.692; OPI = 37.57) than maize (proportion of eggs = 0.301; OPI = -38.780) and cogon grass (proportion of eggs = 0.174; OPI = -65.183) for oviposition. These findings indicated that king grass was a potential alternate host for O. furnacalis to survive and could serve as refugia in IRM strategy. However, it needs further research in the field to ensure the potential of king grass as refugia for O. furnacalis.
Co-Authors Blasius Paga Jaqcualine A. Bunga Jemrift H. H. Sonbai Lapinangga, Nina Jeni Subiadi Subiadi Welianto Boboy, Welianto Witjaksono Witjaksono Witjaksono Witjaksono Y. Andi Trisyono Y. Andi Trisyono