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All Journal JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Penelitian Pertanian Terapan Jurnal Agrotropika
Erwin Yuliadi
Staf pengajar pada Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Lampung Jln. Soemantri Brodjonegoro 1, Bandar Lampung 35145, Telp. 0721 781820 Email: erwyld@yahoo.co.id.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Aplikasi Paclobutrazol Melalui Daun Tanaman Ubi kayu (Manihot esculenta Crantz.) untuk Merangsang Pembungaan Dini di Dataran Rendah Yuliadi, Erwin; Sunyoto, Sunyoto; Artika, Kristina; Ardian, Ardian
Jurnal Penelitian Pertanian Terapan Vol 12, No 1 (2012)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (116.131 KB) | DOI: 10.25181/jppt.v12i1.198

Abstract

The main obstacle in breeding cassava plant is a flowering plant age which is not the same between the genotypes and the long time needed for a breeder to get cassava flowering before it is crossed. The purpose of this study was to determine the application of various concentrations of Paclobutrazol through the leaves of cassava plants to induce early flowering in the lowlands. Plant materials in the form of cuttings were taken with the size of 25 cm in length. The clone used was called Thailand taken from the field 10-12 months after planting. This experiment was conducted with complete randomized block design. Each treatment was repeated three times and each experimental unit consists of at least two-plant samples. Paclobutrazol treatment consisted of a wide range of concentration. Those were: 0 (P0), 250 (P1), 500 (P2), 750 (P3), and 1000 (P4) ppm. Paclobutrazol was sprayed through the leaves and carried out on plants that have been 30 days after planting with a volume of 100 ml per crop. The application through the soil was also done once while through the leaf was done 3 times with 1 week interval, each application was given with a volume of 20 ml, 30 ml and 50 ml. The results showed that Paclobutrazol Application of 500 ppm through the leaf was s the best concentration in stimulating the formation of branches and flowers compared with other Paclobutrazol concentrations Keywords: Paclobutrazol, Cassava Plant, Early Flowering, Lowland
INFESTATION OF MAJOR PESTS AND DISEASES ON VARIOUS CASSAVA CLONES IN LAMPUNG-INDONESIA Swibawa, I Gede; Susilo, Franciscus Xaverius; ., Purnomo; Aeny, Titik Nur; Utomo, Setyo Dwi; Yuliadi, Erwin
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol. 20 No. 1 (2020): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.12013-18

Abstract

Infestation of major pests and diseases on various cassava clones in Lampung-Indonesia. Lampung Province is one ofcassava producers in Indonesia which contributes more than 30% to the total national cassava production. However, theinfestation of pests and diseases can limit cassava production in the field. The objective of this research was to observe theinfestation level of major plant pests and diseases of cassava in Lampung. A survey was conducted in August 2016 in severallocations of cassava fields owned by farmers and experimental plots in the area of Faculty of Agriculture, University ofLampung. The results showed that cassava mealybug (Phenacoccus manihoti), papaya mealybug (Paracoccus marginatus)and red mite (Tetranychus urticae) infested at cassava clones in Lampung. The infestation of red mite tended to be higher thanthat of mealybugs. The cassava brown leaf spot disease that infested in mild to moderate severity was found on all cassavaclones, while viral disease with prevalence of 78% was only found on Duwet 1 clone in experimental plot.
PERTUMBUHAN DAN PERBANYAKAN TUNAS MIKRO SINGKONG (MANIHOT ESCULENTA CRANTZ.) SECARA IN VITRO PADA BERBAGAI KONSENTRASI BENZIL ADENIN. Ardian, Ardian; Yuliadi, Erwin
JURNAL AGROTROPIKA Vol 14, No 1 (2009): Jurnal Agrotropika V14 No 1 2009
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.494 KB)

Abstract

Propagation of cassava through in vitro culture is required by farmers and agro industries to fulfill the need of the best and the newest clone as soon as after that clone is released by government. The objective of this research is to know the effect of the application of four concentration of benzyl adenine on the growth and proliferation of cassava shoot in vitro. Explants used were one-node cuttings of cassava about 1 cm length, grown in polybags. This research was arranged in completely randomized design with the treatments consisting of four concentrations of benzyl adenine: 0.5, 1, 2 and 4 mg/l added of basic media of Murashige and Skoog. Each treatment was replicated 4 times with 5 explants in each experimet al unit. The best growth and micro-shoot propagation of cassava in vitro was indicated by treatment of 0.5 mg/l benzyl adenine.Key words: cassava, benzyl adenin, in vitro, micro-shoot
Co-Authors Ardian Ardian Franciscus Xaverius Susilo, Franciscus Xaverius I GEDE SWIBAWA, I GEDE Kristina Artika Purnomo Purnomo Setyo Dwi Utomo Sunyoto Sunyoto Titik Nur Aeny