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Agroland : Jurnal Ilmu-Ilmu Pertanian
Published by Universitas Tadulako
ISSN : 0854641X     EISSN : 24077607     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agroland : jurnal Ilmu-ilmu pertanian diterbitkan 3 kali dalam satu tahun. Jurnal ini diterbitkan oleh Fakultas pertanian Universitas Tadulako dengan tujuan untuk meningkatkan kapasitas Dosen diLingkup Fakultas Pertanian dalam Bidang Penelitian dan sebagai penunjang dalam Tri Dharma Perguruan tinggi.
Arjuna Subject : -
Articles 12 Documents
 1   2 
Search results for , issue "Vol 15, No 2 (2008)" : 12 Documents clear
TEMPERATURE AFFECTING THE FLOWERING OF STURT’S DESERT PEA (Swainsona Formosa) Ramal Yusuf
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 2 (2008)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.78 KB)

Abstract

Sturt;s Desert Pea (SDP) adalah suatu tanaman legum. Tanaman ini berpotensi sebagai tanaman bunga dalam pot, juga cocok pada pot-pot gantung dan bunga potong. Keberhasilan secara komersial sangat tergantung pada produksi yang konsisten dari tanaman yang berkualitas.  Tujuan penelitian ini adalah menemukan kondisi lingkungan yang sesuai untuk produksi tanaman. Faktor lingkungan yang diteliti adalah temperatur. Untuk mengetahui pengaruh temperatur pada pembungaan, maka penelitian  dilakukan  dengan  mengatur  temperatur  pada  25°C  konstan,  temperatur  10°C  malam  dan  22°C  siang,  dan  perlakuan  ketiga tanaman  ditumbuhkan  pada  temperatur  18°C  malam  dan  30°C  siang.  Hasil  penelitian  menunjukkan  bahwa  tanaman  yang ditumbuhkan pada temperatur 18°C malam dan 30°C siang menghasilkan bunga lebih banyak dari  perlakuan temperatur lainnya.
PENGENDALIAN HAMA PENGGEREK TONGKOL JAGUNG Helicoverpa armigera HUBNER. (LEPIDOPTERA : NOCTUIDAE) DENGAN Beauveria bassiana strain lokal PADA PERTANAMAN JAGUNG MANIS DI KABUPATEN DONGGALA Nurkhasanah Nurkhasanah
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 2 (2008)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (182.612 KB)

Abstract

The  attack  of  pod borer  Helicoperva  armigera  Huebner  (Lepidoptera:Noctuidae)  on  corn  ear  stems  represent  the main constraint of sweet corn planting development in Donggala Regency Central Sulawesi.  The biological control using a pathogen  insect  (entomopathogen)  as  one  of  the  integrated  pest  control  components  can  be  developed  to  overcome  this problem.  One type of the pathogenic insect is a Beuverria bassiana fungi.The research aims were to identify the effectiveness of various concentrations and application time interval of B. bassiana as bioinsecticide to control of H. armigera pod borer. The experiment used a Randomized Block design with two factors consisting of B. bassiana concentrations (K): k 1 = 0,4, k 2 = 0,6 and k 3  = 0,8, and time interval of B. bassiana applications (W) : w 1  = 5 d, w 2 = 7 d, and w 3 = 9 d.  Each treatment was replicated 3 times; therefore, there were 27 experimental units in total. The parameters observed were: (i) density of larva population (ii) mortality of larva, and (iii) percent of ear corn stem damage.  Data were analysed using the analysis of variance, and differences between means was tested using honest significant difference (HSD) test at 5%. The research results showed that the concentration and the application time interval of B. bassiana each had significant effect on all parameters observed but their interaction effect was insignificant. The treatment k 2 w 3  (0.6 mg B. bassiana/L water applied every 9 d) was more effective in suppressing the population density, the larva mortality and the ear corn stem damage percent than other treatments. Considering the negative impacts of using chemical insecticide, B. bassiana bioinsecticide can be used as an alternative control of sweet corn pod borer H. armigera.

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