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All Journal Berkala Ilmiah Pendidikan Biologi (BioEdu) Matematika dan Sains AGRIVITA, Journal of Agricultural Science
Mahanani Tri Asri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Languange, Linguistic, Communication & Media Mathematics

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Journal : Matematika dan Sains

 1 
EFEKTIVITAS Spodoptera Litura Multiple Nukleopolyhedrosis Virus) YANG DIPAPARI DENGAN SINAR ULTRAVIOLET-C DAN SINAR MATAHARI TERHADAP KEMATIAN Spodoptera litura Fabr. Mahanani Tri Asri, ; Sri Kentjananingsih, ; Yuni Kristiningsih,
Matematika dan Sains Vol 16, No 2 (2009)
Publisher : Matematika dan Sains

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Abstract

The propose of research was to compare the effectivity of UV-exposed and sunray-exposed SpLtMNPVs against the mortility of S. litura larvae. This experiment is designated in laboratory with completely randomized design for differentiating the effectivity of SpLtMNPV which have been 12, 16, 24 hours sunray exposed and 8 hours UV-C lamp to the mortality of S. litura F. larvae. There were 6 repetition for each group with the SpLtMNPV concentration as much as 107 PIBs/ml, so there are 24 experiment units. Each treatment includes 10 3rd instar of S. litura F. larvae. The results of research showed that sunray exposure has decreased the effectivity of SpLtMNPV viruses faster than UV-C exposure. This was showed through the fewer S. litura larvae has been killed by sunray exposed viruses than by the U.V. exposed viruses. On the 8th day application, there was only 52 - 55% larvae killed by sunray exposed viruses compared to 78% larvae killed by UV exposed viruses.rd instar of S. litura F. larvae. The results of research showed that sunray exposure has decreased the effectivity of SpLtMNPV viruses faster than UV-C exposure. This was showed through the fewer S. litura larvae has been killed by sunray exposed viruses than by the U.V. exposed viruses. On the 8th day application, there was only 52 - 55% larvae killed by sunray exposed viruses compared to 78% larvae killed by UV exposed viruses.
EFEKTIVITAS SPODOPTERA LITURA MULTIPLE NUKLEOPOLYHEDROSIS VIRUS (SlMNPV) HASIL PERBANYAKAN PADA SEL LINE UNTUK MENGENDALIKAN LARVA Spodoptera litura SKALA GREEN HOUSE DENGAN BERBAGAI WAKTU APLIKASI Mahanani Tri Asri, ; Nur Ducha,
Matematika dan Sains Vol 17, No 2 (2010)
Publisher : Matematika dan Sains

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The biological control is the best choice to control plant pest population. SlMNPV is the one kind of the biological control agent which effective to control the Spodoptera litura caterpillar. The caterpillar attacked to many kind of agrocultural crops like Ricinus comunis, soybean, cotton, and tobacco. The effectivenes SlMNPV reproduce cresult in cell line of to control the caterpillar in green house in various concentrations. This research conducted to know the effect of virus concentration ( 7,1 x 107 PIBs/ml, 7,1 x 108 PIBs/ml, and 7,1 x 109 PIBs/ml) to control the caterpillar (Spodoptera litura) death in three application times (the morning; 06.00; day :12.00 and evening: 16.00). The results of the research showed that the virus concentration of 7,1 x 108PIBs/ml PIBs/ml effective to control caterpillar population because the caterpillar death reached 80% (biological control standart) and the best time to applicate was evening.7 PIBs/ml, 7,1 x 108 PIBs/ml, and 7,1 x 109 PIBs/ml) to control the caterpillar (Spodoptera litura) death in three application times (the morning; 06.00; day :12.00 and evening: 16.00). The results of the research showed that the virus concentration of 7,1 x 108PIBs/ml PIBs/ml effective to control caterpillar population because the caterpillar death reached 80% (biological control standart) and the best time to applicate was evening.
SENYAWA FLAVANON DARI TUMBUHAN Suyatno, ; Nurul Hidajati, ; Mahanani Tri Asri, ; Rizka Ayu Hamida,
Matematika dan Sains Vol 17, No 2 (2010)
Publisher : Matematika dan Sains

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Abstract

A flavanone namely 5-hydroxy-7-methoxy flavanone (pinostrobin) had been isolated from dichloromethane extract of the leaves of the Pteriss vittata. It was gained as a pale yellow needles, m.p. 96-97 oC. The molecular structure of isolate was identified by spectroscopic methods, including UV, IR, and EIMS.A flavanone namely 5-hydroxy-7-methoxy flavanone (pinostrobin) had been isolated from dichloromethane extract of the leaves of the Pteriss vittata. It was gained as a pale yellow needles, m.p. 96-97 oC. The molecular structure of isolate was identified by spectroscopic methods, including UV, IR, and EIMS.
Co-Authors Bambang Tri Rahardjo Dwi Rahmawati Guntur Trimulyono Isnawati Lukas S. Budipramana Nur Ducha Nurul Hidajati Rizka Ayu Hamida Siti Rasminah Chaelani Sri Kentjananingsih Sutiman Bambang Sumitro Suyatno Yuni Kristiningsih