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Jauharlina Jauharlina
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry

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Eksplorasi dan Karakterisasi Varietas Mangga Tahan Hama Penggerek Batang di Nanggroe Aceh Darussalam Siti Hafsah; Jauharlina Jauharlina; Tjut Chamzurni
Jurnal Agrista Vol 14, No 2 (2010): Volume 14 Nomor 2 Agustus 2010
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Exploration and Characterization of Mango Variety Resist of Cork bore in Nanggroe Aceh DarussalamABSTRACT. The basic knowledge about mango resistance of trunk bore in the field and laboratory is early step to make mango resistance breeding. The result of research could be positive correlation between resistance character and commercial character. The research consisted two parts, survey of varieties of mango on field and the resistance test of trunk borer of mango on laboratory. The survey was done by characterization of mango varieties on Aceh Besar and Banda Aceh. The laboratory research was held by varieties of mango (Arumanis, Gadung, Golek, Cengkeh, Apel and Local) the test of resistance of trunk borer of mango. All treatment was assigned in Completely Randomized Design with 3 replications. The observation was done on characterization of mango varieties, percent of damage, damage index, insect identification and soluble solids contents. This result showed that there are six varieties of mango (Arumanis, Cengkeh, Gadung, Apel, Golek and Local (cengkir) has be found on Banda Aceh and Aceh Besar. Percent damage of trunk borer of mango on Aceh Besar (50-100%) and intensity of damage (10-60%). Percent damage (0-100%) and intensity of damage (0-30%) on Banda Aceh is Lower than Aceh Besar. The soluble solid contents of mature fruit of Golek, Gadung, Cengkeh and Arumanis 13.90-15.68 0brix) higher than Apel and Local (11.54 and 12.72 0brix). Result of identification of insect that trunk borer og mangoes on Banda Aceh and Aceh Besar is Rhytidodera simulans Wh. 
Tingkat Populasi dan Waktu Infestasi Hama Penggulung Daun (Lamprosema indicate F.): Pengaruhnya Terhadap Hasil Kacang Tanah Jauharlina Jauharlina
Jurnal Agrista Vol 10, No 1 (2006): Volume 10 Nomor 1 April 2006
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Population Rate and Infestation Time of Leaves Rollers Insect (Lamprosema indicate F.): The Effect of Peanut YieldABSTRACT. Study of population rate and infestation time of larvae of L. indicate on peanut yield was conducted in Experimental Farm of Agriculture Faculty, Syiah Kuala University, Darussalam, Banda Aceh. Factorial completely randomized design was applied. The first factor was population rate of L. indicata, consisting of four levels i.e. 0, 1, 3, and 6 larvae per plant. The second factor was infestation time of L. indicata larvae, consisting of four levels i.e. at time of 14, 21, 28, 35 day after planting. Each treatment was repeated three times. Variable observed were infestation intensity of L. indicata, the number of pods, the number of grain per plant, and dried grain weight per plant. The result showed that there was significant interaction between population rate and infestation time on infestation intensity of L. indicata. Population rate of 1 larvae per plant and infestation time of 35 day after planting was effective to lessen infestation intensity up to 4,88 percents. Population rate of 1 larvae per plant caused the highest number of pod, grain, and dried grain weight per plant compared to those of the population rate of 3 and 6 larvae per plant. On the contratry, the infestation time of 14 days after planting caused the lowest number of pod, grain, and dried grain weight per plant compared to that infestation time 35 day after planting.
Temperature Gradients and Their Effects on The Interaction of an Insect Host Plodia interpunctella and Its Parasitoid Venturia canescens Jauharlina Jauharlina
Jurnal Agrista Vol 12, No 2 (2008): Volume 12 Nomor 2 Agustus 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Pengaruh Gradien Suhu Terhadap Interaksi Serangga Inang Plodia interpunctella dan Parasitoid Venturia canescensABSTRAK. Pengaruh suhu merupakan hal yang penting dalam mengamati hasil interaksi serangga inang dengan parasitoid, terutama dalam menentukan tingkat keberhasilan perkembangan parasotoid tersebut. Untuk mengetahui pengaruh perubahan suhu terhadap interaksi inang dan parasitoid, telah dilakukan penelitian di laboratorium terhadap parasitoid Venturia canescens (Gravenhorst) (Hymenoptera: Ichneumonidae) dan inangnya, Plodia interpunctella (Hubner) (Lepidoptera: Pyralidae). Gradien suhu 28-240C; 28-260C;  dan 28-280C digunakan dalam suatu sistem terdiri dari instar V P. interpunctella yang telah diparasit oleh V. canescens. Penggunaan gradient suhu yang berbeda dalam penelitian ini berarti perubahan suhu dari 280C, dimana serangga parasitoid dibiakkan sebelumnya ke suhu yang lebuih rendah, yaitu 24 dan 260C. Serangga inang yang digunakan dalam percobaan ini merupakan biakkan yang telah mapan pada suhu rendah tersebut. Hasil penelitian menunjukkan bahwa begaian inang yang terparasit berhasil menjadi imago parasitoid V. canescens. Gradien suhu yang berbeda tidak berpengaruh terhadap jumlah imago parasitoid yang muncul dan tingkat enkapsulasi. Waktu perkembangan yang dibutuhkan parasitoid meningkat secara signifikan dengan menurunnya gradient suhu. Dibutuhkan waktu 26,76 hari dan 22,96 hari bagi parasitoid untuk berkembang pada gradient suhu 28-240C dan 28-260C, dibandingkan hanya 21,20 hari pada suhu konstan 28-280C. Perubahan suhu dari 28 ke 240C, dan dari 28 ke 260C meningkatkan tubuh parasitoid sampai 1,54 dan 1,52 mm, dibandingkan dengan 1,47 mm pada suhu 28-280C. Hasil penelitian ini menunjukkan bahwa parasitoid V. canescens dapat berkembang dengan baik pada gradient suhu yang lebih rendah selama interaksi dengan inang P. interpunctella, mengikuti serangga inang yang terlebih dahulu sudah mapan pada suhu rendah yang sama.
Tingkat Parasitisasi Berbagai Parasitoid Telur Nezara viridula L. pada Tanaman Kedelai Jauharlina Jauharlina; Husni Husni; Bintra Mailina
Jurnal Agrista 2008: Edisi Khusus Nomor 1 November 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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The Parasitism Level of Various Egg Parasitoids Associated with Nezara viridula L. on Soybean PlantationABSTRACT. It is well known that the presence of various egg parasitoids on the green stink bug, Nezara viridula, can decrease the population of this insect pest on soybean plantation. A research has been conducted to observe the parasitism level of various egg parasitoids associated with N. viridula on different stages of soybean plantation. The plant stages used were 4-5, 6-7, 8-9, and 10-12 weeks after planting (WAP), with 6 experimental plot for each stage, and 5 plants for each experimental unit. Three pairs of N. viridula adult then were relased onto each plant which was covered by the gauze cage earlier. When egg were laid, the cage was taken out leaving 2 eggs rafts per plant. These N. viridula eggs then were exposed to parasitoid for three days, before taking them all to the laboratory. The observations were done on the parasitized eggs. The result showed that different stages of soybean plants significantly affected the parasitism level of various egg parasitoids, with 26 to 46% parasitism level. Up to 71.8% of parasitize egg successfully became adult parasitoids. There were four different Hymenoptera egg parasitoids found associated with N. viridula, namely Telenomus sp. (Scelionidae), Gryon sp. (Scelionidae), Mycroteris sp. (Encyrtidae), and Anastatus sp. (Eupelmidae). Due to its abunden (91.5%) on soybean plantation, and its fair sex ratio, Telenomus sp.is believed to have a great potential for future development as a biological control agent on the green stink bug, N. viridula.
Co-Authors Bintra Mailina Husni Husni Siti Hafsah Tjut Chamzurni