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THE DIVERSITY OF SOIL MACROFAUNA ON THE BURNED AND UNBURNED LAND IN THE RUMBIO CUSTOMARY FOREST Darwan Suganda; Defri Yoza; Wardati
Jurnal Ilmu Ilmu Kehutanan Vol. 4 No. 1 (2020)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.4.1.14-19

Abstract

Soil macrofauna is a part of soil biodiversity that plays an important role in the improvement soil physical, chemical and biological properties. Fires that occur will affect the activity and presence of soil macrofauna which helps the decomposition process of organic materials such as providing better environmental facilities (Micro Habitat). This research aims to know species diversity and population density of soil macrofauna on burned and unburned land in The Rumbio Customary Forest. The research was carried out in The Rumbio Customary Forest and the Soil Laboratory Faculty of Agriculture University of Riau. The sampling of soil macrofauana was carried out on burned and unburned land in The Rumbio Customary Forest and also for measurement of soil physical-chemical factors. The research used the hand sorting method. This research showed that the population density of soil macrofauna on unburned land is higher if compared to burned land.
Pengembangan Kriteria Seleksi Cabai (Capsicum annuum L.) di Lahan Gambut Provinsi Riau Deviona; Yunandra; Wardati; Mulyani
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 49 No. 2 (2021): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.55 KB) | DOI: 10.24831/jai.v49i2.36035

Abstract

Pengembangan varietas cabai toleran lahan gambut merupakan salah satu cara untuk meningkatkan produksi cabai di lahan gambut yang cukup luas. Tujuan dari penelitian ini adalah untuk menentukan kriteria seleksi cabai toleran lahan gambut. Penelitian dilaksanakan di KP Rimbo Panjang, Fakultas Pertanian UNRI pada bulan November 2020 hingga Maret 2021. Penelitian menggunakan 20 genotipe cabai meliputi sembilan cabai besar, enam cabai keriting, dan lima cabai rawit. Hasil analisis ragam menunjukkan bahwa perbedaan genotipe berpengaruh nyata terhadap semua karakter kuantitatif yang diamati kecuali umur panen dan diameter batang. Tinggi tanaman, lebar tajuk, tinggi dikotomus, diameter buah, panjang buah, bobot buah, tebal daging buah, umur berbunga, jumlah buah, dan bobot buah per tanaman memiliki nilai heritabilitas tinggi. Hasil analisis lintas menunjukkan bahwa ketebalan daging buah, bobot buah, panjang buah, dan diameter buah berpengaruh langsung terhadap bobot buah per tanaman. Karakteristik diameter buah, panjang buah dan bobot buah secara tidak langsung mempengaruhi bobot buah per tanaman melalui karakteristik daging buah. Karakter yang dapat digunakan sebagai kriteria seleksi cabai toleran lahan gambut adalah ketebalan daging buah (0.71), bobot buah (0.80) dan panjang buah (0.74). Kata kunci: heritabilitas, karakter kuantitatif, korelasi, sidik lintas