Please use this identifier to cite or link to this item: http://repository.ipb.ac.id/handle/123456789/54147
Title: Efisiensi Penggunaan Radiasi Surya pada Tanaman Kentang (Solanum tuberosum L.) Varietas Granola dan Atlantik di Kabupaten Kerinci, Jambi.
Use Efficiency of Potato Crop (Solanum tuberosum L.) of Granola and Atlantic varieties in Kerinci Regency, Jambi.
Authors: Handoko
Azim Kholis
Keywords: Bogor Agricultural University (IPB)
Atlantik
Granola
intersepsi radiasi surya
kentang
LAI
RUE
Issue Date: 2011
Abstract: Solar radiation is one of climate variables that greatly affects potato production (Solanum tuberosum L.). Solar radiation interception shows the amount of solar radiation which falls on the crop canopy reduced by radiation transmitted to the bottom of crop canopy. Solar radiation interception is determined by LAI (leaf are index). The amount of radiation intercepted increased with increasing LAI. This study aims to find the value of RUE (radiation use efficiency) of potato crop of Granola and Atlantic varieties. The variables used to determine RUE was potato biomass and global solar radiation obtained from the Climatological Station of Kayu Aro. Radiation use efficiency is the ratio between increase in biomass and the amount of solar radiation intercepted by the crop's canopy. The results of this study indicate that the value of RUE (above ground biomass) of Granola variety was 0,31 g.MJ-1 and Atlantic variety was 0,49 g.MJ-1, whereas the value of RUE (total biomass) Granola variety was 2,22 g.MJ-1 and Atlantic variety was 3,02 g.MJ-1.
Radiasi surya merupakan salah satu unsur iklim yang sangat mempengaruhi produksi tanaman kentang (Solanum tuberosum L.). Intersepsi radiasi surya menunjukkan jumlah radiasi surya yang jatuh pada tajuk tanaman dikurangi radiasi yang ditransmisikan ke bawah tajuk tanaman tersebut. Intersepsi radiasi surya dipengaruhi nilai LAI (leaf area index). Jumlah Radiasi yang terintersepsi tanaman kentang akan meningkat seiring peningkatan nilai LAI. Penelitian ini bertujuan mencari nilai RUE (radiation use efficiency) pada tanaman kentang varietas Granola dan Atlantik. Peubah yang digunakan untuk menentukan RUE yaitu biomassa tanaman kentang dan radiasi surya global yang diperoleh dari Stasiun Klimatologi pos pengamatan Kayu Aro. Efisiensi penggunaan radiasi surya (RUE) merupakan rasio antara penambahan biomassa dan jumlah radiasi surya yang terintersepsi oleh tanaman. Hasil penelitian ini menunjukkan bahwa nilai RUE (biomassa di atas tanah) varietas Granola yaitu 0,31 g.MJ-1 dan varietas Atlantik sebesar 0,49 g.MJ-1, sedangkan nilai RUE dengan menggunakan data biomassa total kentang varietas Granola sebesar 2,22 g.MJ-1 dan varietas Atlantik sebesar 3,02 g.MJ-1.
URI: http://repository.ipb.ac.id/handle/123456789/54147
Appears in Collections:UT - Geophysics and Meteorology

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