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All Journal JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Psikosains: Jurnal Penelitian dan Pemikiran Psikologi
Nisa, Ummu Khairun
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Agriculture, Biological Sciences & Forestry Humanities Neuroscience Physics Social Sciences Other

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PENGARUH KONFORMITAS DAN RISK PERCEPTION TERHADAP SENSATION SEEKING BEHAVIOR PADA REMAJA PENGENDARA SEPEDA MOTOR DI BAWAH UMUR Grashinta, Aully; Nisa, Ummu Khairun
PSIKOSAINS (Jurnal Penelitian dan Pemikiran Psikologi) Vol 13 No 1 (2018)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (510.465 KB) | DOI: 10.30587/psikosains.v13i1.342

Abstract

Penelitian bertujuan membuktikan pengaruh persepsi resiko sebagai faktor internal individu dan konformitas teman sebaya sebagai faktor eksternal terhadap kecenderungan sensation seeking behavior pada remaja pengendara sepeda motor di bawah umur. Sampel penelitian 201 pengendara sepeda motor berusia 12-16 tahun di Jakarta.Teknik sampling yaitu aksidental. Konformitas diukur dengan modifikasi skala Konformitas Teman Sebaya (Annurfatmah,2014), reliabilitasnya 0.734; risk perception diukur denganmodifikasi Skala Risk Perception (Utami,2010)reliabilitasnya 0,888 sedangkan sensation seeking behaviour diukur dengan modifikasi Sensation Seeking Scale (SSS-V) dari Zuckerman (2007) reliabilitasnya 0.879.Teknik analisis data menggunakan regresi ganda. Nilai R2 yang diperoleh sebesar 0.324 and p<0.05. Hal ini berarti bahwa konformitas dan risk perception memiliki pengaruh terhadap sensation seeking behavior sebesar 32.4% (R2=0.324, p<0.05) sedangkan sisanya 67.6% dipengaruhi oleh faktor lain.
Identification and sensitivity testing of whip smut pathogen on sugarcane to fungicides and plant extracts Efri, Efri; Nisa, Ummu Khairun; Pramono, Sudi; Maryono, Tri; Saefudin, Saefudin; Pranata, Heru
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 25 No. 1 (2025): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.125119-127

Abstract

Whip smut symptoms have emerged in sugarcane plantations in Central Lampung Regency, Lampung Province. However, the identity of the pathogen and its sensitivity to various fungicidal active ingredients remain unclear. This study aims to identify the whip smut pathogen in sugarcane plantations in Central Lampung Regency and evaluate its sensitivity to different fungicidal active ingredients.The research involved morphological and molecular identification of the pathogen, along with sensitivity testing against fungicides containing carbendazim, prochloraz, and mancozeb, as well as plant-based fungicides derived from puyangan (Zingiber zerumbet) and jamuan (Curcuma zedoaria) extracts. Morphological analysis revealed that the whip smut pathogen has septate hyphae, cylindrical sporidia measuring 7.45–18.31 µm in length and 1.63–3.89 µm in width, and round, yellowish-brown teliospores with an average size of 6.39 × 6.66 µm. Molecular identification confirmed that the LA UKN isolate from Central Lampung Regency belongs to Sporisorium scitamineum, with a bootstrap value of 93%. Sensitivity testing indicated that the pathogen is highly susceptible to carbendazim and prochloraz but less sensitive to mancozeb, puyangan extract, and jamuan extract.
Co-Authors Aully Grashinta, Aully Efri, Efri Pranata, Heru Saefudin Saefudin Sudi Pramono . Tri Maryono