BKG

AsyikNurAllifahAF, (2011) Efek Blog Refugia (Chromolaena odorata, Mimosa pudica, Brachiaria mutica, Panicum repens) terhadap Pola Kunjungan Harian Musuh Alami di Lahan Pertanian. Magister thesis, Universitas Brawijaya.

Indonesian Abstract

Musuh alami merupakan salah satu komponen ekosistem yang sangat menentukan keseimbangan populasi hama. Untuk memperkaya musuh alami dapat dilakukan dengan pengadaan tanaman yang erat hubungannya dengan musuh alami tersebut yakni pengadaan dan penanaman tanaman yang sering dikunjungi dan ditempati oleh serangga. Penelitian ini bertujuan untuk mengetahui efek blog refugia terhadap pola kunjungan harian musuh alami dan hama di lahan pertanian, mengetahui kelimpahan dan jenis musuh alami dan hama pengunjung blog refugia ( C.odorata, Mimosa pudica, B. mutica, P. repens), mengetahui efek blog refugia ( C.odorata , Mimosa pudica , B. mutica, P. repens) terhadap pola distribusi spasial dan distribusi temporal musuh alami dan hama di lahan pertanian . Penelitian ini dilaksanakan pada bulan Mei s/d Oktober 2010 di Desa Sekarpuro Kecamatan Pakis Kabupaten Malang. Koleksi refugia terdiri dari 4 spesies tumbuhan yakni Chromolaena odorata, Mimosa pudica, Brachiaria mutica, Panicum repens. Blog refugia berukuran 1x1m 2 . Pengamatan dilakukan sebanyak 4 periode yakni periode pengamatan I dilakukan pada pukul 07.00-08.00 WIB, periode II dilakukan pada pukul 09.00-10.00 WIB. Periode III dilakukan pada pukul 12.00-13.00 WIB dan periode ke empat pada pukul 15.00-16.00 WIB. Pengamatan dilakukan pada 4 plot pengamatan dengan jarak antar plot 2 m. Lama pengamatan 15 menit. Penelitian dilakukan selama 15 hari. Metode pengamatan yang digunakan adalah “ visual controll ”. Pola kunjungan harian musuh alami dianalisis menggunakan Regresi dan analisis Kurva Permukaan Respon. Kelimpahan dan pola distribusi spasial dan distribusi temporal menggunakan analisis Regresi dan ANOVA dengan Rancangan Faktorial. Hasil penelitian menunjukkan bahwa efek blog refugia berpengaruh terhadap pola kunjungan harian musuh alami (P 0,05). Respon polinomial menunjukkan pola kunjungan harian musuh alami adalah berpola acak (R2 adjusted 0.5 (atau 50%)). Famili yang menunjukkan kelimpahan terbanyak adalah famili Coccinellidae ( 71,47 ± 5,09 individu/hari ) dan famili yang menunjukkan kelimpahan paling sedikit adalah famili Tettigonidae ( 3,53 ± 0,84 individu/hari ) . Rata-rata kelimpahan musuh alami terbanyak terdapat pada plot pertama (5,67 ± 1,92 individu/hari) dan temporal kedua (6,09 ± 2,59 individu/hari). Hasil penelitian menunjukkan bahwa, terdapat 6 famili Arthropoda musuh alami dan hama yang mempunyai pola distribusi spasial dan atau pola distribusi temporal. Diantaranya adalah Coccinellidae, Libellulidae, Tetragnatidae, Tettigonidae, Formicidae, Drosophilidae. Secara keseluruhan musuh alami pengunjung blog refugia menunjukkan pola distribusi temporal (P 0,05) dan tidak menunjukkan pola distribusi secara spasial (P0,05).

English Abstract

Natural enemies are one of the components of the ecosystem that determine the balance of the pest population. Role of natural enemies can be maximized by planting of plant which often visited by insect. The aims of this study were: (1) knowing the effect of refugia blog to the pattern of daily visits of natural enemies on the farmland in Sekarpuro, Pakis, Malang Regency, (2) knowing the abundance and type of natural enemies that visiting to refugia blog ( C. odorata, M. pudica, B.mutica, P.repens ) (3) knowing the effect of refugia blog to the pattern of temporal and spatial distributions of natural enemies . The study was conducted in May - October 2010 on the rice field in Sekarpuro, Pakis, Malang Regency. Refugia collection was a group of four plant species (Chromolaena odorata, Mimosa pudica, Brachiaria mutica, Panicum repens). The refugia blog was 1x1m 2 in quadrat shape. Observations were done as many as four periods: the first period were done at 07:00 to 8:00, period II at 9:00 to 10:00, period III at 12:00 to 13:00 and the fourth period at 15.00 to 16.00. These were done in four plots with distance of each plot two meters. Length of observation 15 minutes. The study was conducted for 15 days. The method of this study was a modification of the visual control. The pattern of daily visit was analyzed by regression, curve and surface respon. The abundance of natural enemies and the pattern of spatial and temporal distributions can be identified based on Analysis of Variance (ANOVA) with factorial design and regression. The result of the research showed that the effect of refugia blog was significant to the pattern of daily visits of natural enemies (P 0,05). Polynomial respon showed a random pattern (R2 adjusted 0.5 (or 50%). The most of natural enemies preferred first plot contain a refugia blog (5,67 ± 1,92 individu/day). Those were showed highest abundance in s econd temporal (6,09 ± 2,59 individu/day). The most abundant of natural enemies was belong to Coccinelidae ( 71,47 ± 5,09 individu/day ), and the fewest was belong to Tettigonidae ( 3,53 ± 0,84 individu/day ) . There were six familis of Arthropod that have a pattern of spatial and temporal distributions, as follow: Coccinellidae, Libellulidae, Tetragnatidae, Tettigonidae, Formicidae, and Drosophilidae. Overall, natural enemies visiting refugia blog and other plots showed a temporal distribution pattern (P 0,05) but those did not show a spatial distribution pattern (P0,05).

Other Language Abstract

UNSPECIFIED

Item Type: Thesis (Magister)
Identification Number: TES/515.773/ASY/e/041101634
Subjects: 500 Natural sciences and mathematics > 515 Analysis > 515.7 Functional analysis
Divisions: S2 / S3 > Magister Matematika, Fakultas MIPA
Depositing User: Endro Setyobudi
URI: http://repository.ub.ac.id/id/eprint/157461
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