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Journal : Jurnal Agroplasma

PEBEDAAN BOBOT DAN KADAR AIR BENIH KOPI TERHADAP KONSENTRASI HORMON GIBERELLIN (GA3) DAN JENIS AIR Dede Suhendra; Siska Efendi
JURNAL AGROPLASMA Vol 8, No 2 (2021): AGROPLASMA VOL 8 NO 2
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v8i2.2220

Abstract

West Sumatra is one producing coffee area in Indonesia a significant contribution to economy in Indonesian, because production coffee in West Sumatra unstable, it is necessary to expand the area. The propagation plants coffee is carried out in generative manner and needs be optimized with treating gibberellin hormone and water temperature to germination stage of coffee seeds.This research was conducted at the Seed Technology Laboratory of the Faculty of Agriculture, Andalas University from May to August 2021. The parameters observed were initial seed weight (g), seed weight after treatment (g), initial seed moisture content (%), seed moisture content after treatment (%). The results showed that the observation of initial seed weight and initial seed moisture content showed no significant effect. While the data had a significant effect on the observation of seed weight after treatment with the concentration of gibberellin hormone and seed moisture content after treatment in the treatment of water types, where the observation of seed weight after the highest treatment was in the treatment of gibberellin hormone concentration of 400 ppm with aquadest (G4J1) of 4.23 g and on the observation of the water content of the seeds after the highest treatment, namely the treatment with the concentration of the hormone gibberellin 300 ppm with aquadest (G3J1), which is 46.32%. Key words: Seed Weight, Moisture Content, Aquadest 
Struktur Komunitas Dermaptera Predator Pada Tanaman Kelapa Sawit Efendi, Siska; Setiawati, Rahmi; Suhendra, Dede; Awaluddin, Awaluddin
JURNAL AGROPLASMA Vol 10, No 1 (2023): JURNAL AGROPLASMA VOLUME 10 NO 1 TAHUN 2023
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v10i1.3494

Abstract

This research observed about the structure of Dermaptera insects community on oil palm trees. This research is aimed to study about the structure of the community and the abundance of each species of Dermaptera on oil palm trees. The research is conducted in three places, they are Nagari Gunung Selasih, Sungai Dareh and IV Koto. The research is conducted using hand collecting method once a month. It is operated two times in October and November 2017. Result shows that there are four species of Dermaptera found in the three places, they are Chelisoches morio, Doru aculeatum, Euborellia arcanum and Vostox apicedentatus. The most common species found is C. morio. It is also found that the structure of Dermaptera is not complex because it’s unevenness and has a low biodiversity value.Â