Articles

Found 2 Documents
Search
Journal : JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

KEEFEKTIVAN EKSTRAK BIOTA LAUT AGLAOPHENIA TERHADAP AKTIVITAS ENZIM EKSTRASELULER DAN KANDUNGAN PROTEIN FUSARIUM SERTA PERSENTASE BUSUK BATANG VANILI Suada, I Ketut
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 11, No 2 (2011): September, Jurnal Hama dan Penyakit Tumbuhan Tropika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.211157-165

Abstract

The aim of this research was to investigate the effect of Aglaophenia extract on the activity of cellulase and pectinase, protein content of Fusarium, and percentage of vanilla stem rot. This reasearch  was carried out in-vitro with concentration of extract of 2000, 1000, 500, 250, 125, 63, and 0 ppm (w/v). The treatments were also applied on vanilla plant to determine their effect on the stem rot incidence.  The results exhibited that the higher the concentration of the extract given, both enzymes activity and mycelial protein content of Fusarium decreased. The decrease of enzymes activity resulted in the decrease of vanilla stem rot percentage. The effectiveness of the extract to suppress stem rot was higher than mancozeb, therefore, the extract could be used as a control agent against vanilla stem rot.
ISOLASI DAN IDENTIFIKASI PATOGEN GETAH KUNING MANGGIS MELALUI PENDEKATAN POSTULAT KOCH DAN ANALISIS SECARA MOLEKULER Suada, I Ketut; Suniti, Ni Wayan
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 14, No 2 (2014): September, Jurnal Hama dan Penyakit Tumbuhan Tropika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.214142-151

Abstract

Isolation and identification of mangosteen yellow latex pathogen through Koch’s Postulate application and molecular analysis. The yellow latex disease decreases fruit quality of mangosteen because exogenic latex causes dirty fruit and the endogenic latex makes the bitter fruit taste and does not deserve to be consumed. The causal agent of the disease caused phusilogical disorder so that cells break due to unstability of cell turgor, the drift irrigation treatment was able to decrease the disease of 35.22%, therefore the causal agent could be microbe that promote the yellow latex. This research was aimed to find the yellow latex pathogens with its characteristics. The Koch Postulate was apllied to isolate and proved the microbes associated to the yellow latex and molecular analysis was constructed subsequently to find the microbe species.  The result of the research proved that there were three fungus species as the biotic agent responsible to the disease. The fungus were Verticillium albo-atrum with the highest pathogenecity ( 74.87%), followed by Fusarium oxysporum ( 70.15%), and Pestalotia macrotricha (20.32%).
Co-Authors Adiartayasa, I Wayan AGUSTINA BORU MANIK Ahmat Fansidar Aletha Yuliana Mandala, Aletha Yuliana ANAK AGUNG NGURAH GEDE SUWASTIKA, ANAK AGUNG NGURAH GEDE Anastasia Cornelia Anggara Fajri Prasafitra ANITA KAROLINA SIMAMORA Arhiono, Haru Nira Putra Chandra Immanuel Saragih Christine Regina Fenita Wenno, Christine Regina Fenita Cita, I Putu Giri Wahyu Eka Dayana, Anak Agung Putri Isadela DELVIANA PANJAITAN Dwi Yoga Sutrisna Dyah Ayu Widiasih ELIYA KUSUMAWATI Elly Hariati Br Purba, Elly Hariati Br Emerensia Patryconsitha Aman EUSEBIO GOMES GEDE WIJANA Gracemon Loe Mau, Gracemon Hapsari Mahatmi HESTI YOHANA GINTING I Gede Indrawan I GEDE KETUT SUSRAMA I Gede Putu Wirawan I GEDE SUSRAMA I Gusti Ketut Suarjana I MADE AGUS WIARTANA I MADE SUDARMA I Made Sukada I NYOMAN RAI I Putu Sampurna I Wayan Batan I WAYAN EKA ADI WIRAWAN, I WAYAN EKA ADI I Wayan Suardana I WAYAN WIRAATMAJA I.B.N. Swacita, I.B.N. Ida Bagus Komang Ardana Ida Bagus Ngurah Ngurah Swacita, Ida Bagus Ngurah Ida Bagus Ngurah Swacita IRMA SELVYANA Br. SITEPU Julitha Dewitri Merthayasa, Julitha Dewitri Kadek Karang Agustina KARTINI HUTASOIT KETUT AYU YULIADHI Ketut Budiasa LELE, ONESIMUS KE Lely Anggriani Nababan LULUK WULANDARI MADE PHARMAWATI Made Sritamin Mardyawati, Ida Ayu Putu Aselya Maria Yasinta Manuama Mas Djoko Djoko MAS DJOKO RUDYANTO Maulina Nababan, Maulina Ni Made Puspawati NI MADE YUNITA HENDRIYANI NI PUTU LINDA SUNARIASIH NI WAYAN SUNITI NOER SYAIFUL HAKIM Nurul Masyita, Nurul Pande Made Satya Sumitra Paramita, Ni Made Diana Pradnya Praborini, M. PRADNYANA, I KADEK NGESTIKA Prima, Evy Purnama Layli, Purnama PUTU AYU MEITA YUDIA DEWI, PUTU AYU MEITA YUDIA Reny Navtalia Sinlae REZKI ABADI BONTONG Richard Stenly Tindjabate SANGGUL HUTASOIT Sembiring, Sonia Dewi Citra SHEILA SIMANJUNTAK SISKA MAHARGIAN FIBRIANTI SUGITA, PUTU SURAINIWATI SURAINIWATI Uli Rehlitna Sembiring, Uli Rehlitna Wilson Lois, Wilson Wisnu Pradana Yunita Sri Hastuti, Yunita Sri