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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 13 Documents
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Search results for , issue "Vol 17, No 2 (2010)" : 13 Documents clear
KAJIAN FISIOLOGI TANAMAN KEDELAI PADA BERBAGAI KEPADATAN GULMA TEKI DALAM KONDISI CEKAMAN KEKERINGAN Purwanto Purwanto; T. Agustono
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 17, No 2 (2010)
Publisher : Universitas Tadulako

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Abstract

The aim of this research was to study the effect of drought stress and weeds density to the physiology of soybean plant. The research was a pot experiment arranged in a Randomized Completely Block Design (RCBD). Treatment factors were drought stress and initial population density of weeds. The drought stress treatments consisted of three levels, i.e.: field capacity, 60% field capacity and 40% field capacity water content. The density of weeds comprised 5 densities, i.e.: 0, 5, 10, 15 and 20 tubers per pot. Variables observed were leaf area, number of leaves, transpiration rate, photosynthesis rate, stomata width, number of chlorophylls, dry weight of above ground plant. Data were analyzed by F test, followed by Honestly Significant Difference (HSD) at error level of 5 %. The results showed that water stress at 60% of field capacity decreased the stomata width to 33.14%, 10.45% transpiration rate, and 7.73% chlorophylls contents. The initial population density of weeds decreased the stomata width up to 17.14%. The interaction effect of drought stress and weeds density reduced the leaf area to 35.70% and 20.41 % of photosynthesis rates.
KARAKTERISTIK BUAH KAKAO YANG DIPANEN PADA BERBAGAI KETINGGIAN TEMPAT TUMBUH DAN KELAS KEMATANGAN Nur Alam Nur Alam; Muhammad Salim Saleh; Gatot Siswo Hutomo
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 17, No 2 (2010)
Publisher : Universitas Tadulako

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Abstract

The aim of the research was to determine the effect of altitude and cacao maturity class on cacao fruit characteristics and seed quality. Cacao fruits were harvested from three different altitudes  (first factor): 1-<400, >400-800 and >800 m above sea level (asl); and three different maturity classes (second): maturity class B (yellow on the fruit skin groove), maturity class A (yellow on the whole fruit skin surface) and maturity class A+ (dark yellow on the whole fruit skin surface).  Physical fruit characteristics were analysed on weight, fruit skin content, placenta, dental pulp, wet and dry seed yield, seed number/100 g, unfermented seed, and pulp content and its chemical components (sugar and total acid content).  The combination of the two factors resulted in  27 experimental units. The research resuts showed that cocoa fruit harvested from the plants growing at >400-900 m asl produced highest fruit weight (494.76 g), dry seed yield (8.43% dry weight) and seed size (90 seeds/100g).  Whereas at 1 - <400 m asl, the cacao fruit produced highest pulp sugar content (8.83%), lowest seed size (116 seeds/100 g) and unfermented seed (3.16%). Cacao fruit harvested from plant growing at >400 - <800 m asl with maturity class A produced seed which meet most the quality standard set by the SNI trade 01-2323-2002. The altitude as a growth factor is more dominant in influencing the cacao fruit characteristics than either the fruit maturity class or its combination with the altitude factor.
EFISIENSI PEMANFAATAN INPUT PRODUKSI USAHATANI PADI LADANG DI KECAMATAN BUNGKU UTARA KABUPATEN MOROWALI Nilam Sari
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 17, No 2 (2010)
Publisher : Universitas Tadulako

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Abstract

This research aimed at finding out: (a) factors influencing the dryland paddy production at Bungku Utara Sub-district; and (b) the efficiency of the use of the production factors at the dryland paddy farming.  A multistage random sampling technique was applied to draw out samples for this research.  Firstly, the sample of villages was determined using a purposive sampling method. Three villages were then chosen as the location of the research.  They were village of Baturube, village of Kalombang and village of Womparigi.  Secondly, the sample of farmers involved was determined.  Since there were 230 farmers from those 3 villages,a simple random sampling method was used to draw 130 of them as the sample of the research subject.  The research findings showed that (a) the production factors of land size, urea fertilizer, SP36 fertilizer and KCl fertilizer have a significant influence on the dryland paddy production, while the other factors such as seed, pesticide and human labor have no significant influence; and (b) economically, the use of production factors such as land size, seed, urea, SP36, and KCl fertilizers, pesticide and human labor was sufficiently inefficient.

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