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INDONESIA
Jurnal Ilmu Pertanian
Published by Universitas Gadjah Mada
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 18, No 3 (2015): December" : 7 Documents clear
Pertumbuhan Bibit Kelapa Sawit pada Tanah Gambut Berbagai Ketinggian Genangan Holidi Aminudin; Etty Safriyani; Warjiyanto Warjiyanto; Sutejo Sutejo
Jurnal Ilmu Pertanian Vol 18, No 3 (2015): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (97.953 KB) | DOI: 10.22146/ipas.5433

Abstract

The area of dry land for plantation cultivation is limited, so  peatland would be an alternative development. Adaptation of plant oil palm on the long inundation need to be investigated. This study aims to determine the growth response of oil palm seedlings in peat with some duration of flooding. The research was conducted in the experimental farm of the Faculty of Agriculture, University of Musi Rawas at an altitude of 110 m above sea level on March to June 2014. This study used a randomized block design (RBD) consists of six treatments and four replications. Treatment includes without flooding, duration of flooding 10, 20, 30, 40 and 50 days. The results showed that oil palm seedlings can survive up to 50 days of flooding. Long flooding inhibits the growth of plant height, number of leaves, reducing the amount of leaf chlorophyll. flooding also causes morphological changes in the root of the formation of adventitious shoots.
Studi Keragaman Genetik Dua Puluh Galur Inbred Jagung Manis Generasi S7 Purwito Djoko Yuwono; Rudi Hari Murti; Panjisakti Basunanda
Jurnal Ilmu Pertanian Vol 18, No 3 (2015): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (149.915 KB) | DOI: 10.22146/ipas.7919

Abstract

Penelitian ini mengevaluasi keragaman genetik dua puluh galur inbred jagung manis populasi S7.  Tujuan penelitian ini adalah untuk mendapatkan informasi keragaman genetik dua puluh galur inbred, heritabilitas dalam arti luas, korelasi genetik dan analisis lintasan, dan jarak genetik antar galur inbred jagung manis. Percobaan lapangan menggunakan rancangan acak kelompok lengkap dengan perlakuan dua puluh galur inbred dan tiga ulangan. Analisis data menggunakan ANOVA, korelasi genetik, dan analisis klaster. Koefisien keragaman genetik yang diperoleh mengindikasikan adanya keragaman genetik antar galur yang diuji. Heritabilitas menunjukkan nilai yang tinggi pada semua variabel kecuali jumlah baris biji. Karakter panjang tongkol dan diameter tongkol memiliki korelasi dan pengaruh langsung yang tinggi terhadap bobot tongkol. Analisis klaster menghasilkan tiga kelompok pada nilai koefisien similarity 70%. Kelompok yang memiliki koefisien similarity paling rendah memiliki jarak genetik terjauh dan dianjurkan sebagai tetua untuk pembuatan hibrida dengan heterosis tinggi.
The Relationships Among Physiological Characters and Productivities of Nine PGL Clones in Medium Land Ika Irmayanti; Didik Indradewa; Eka Tarwaca Susila Putra
Jurnal Ilmu Pertanian Vol 18, No 3 (2015): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (70.588 KB) | DOI: 10.22146/ipas.8654

Abstract

The objectives of the study were to determine the relationships among the physiological characters and productivities of nine PGL clones in medium land. Field trial was arranged in a Randomized Complete Block Design (RCBD) single factor with three blocks as replications. The treatment was PGL clones, consisting of nine clones, namely PGL 1 PGL 3, 4 PGL, PGL 7, PGL 10, PGL 11, PGL 12, PGL 15, and PGL 17. The observations were done on several variables of physiological characters and productivities. Data were analyzed by using the Analysis of Variance (ANOVA) at 5% levels. If there were significant differences among the treatments, they will be analysed by Duncan Multiple Range Test (DMRT). The relationships among variables were determined using correlation analysis. Results showed that there were wide variations in the stomatal density and width openings  and also productivities among the nine PGL clones. Stomatal density and width openings have significant positive correlation with the productivity. PGL 12 and 15 with a denser of stomatal arrangement and wider stomatal openings have higher productivities when compared to other PGL clones, especially PGL 7 with the most loosely stomatal arrangement and narrower stomatal openings.
Analisis Cluster Sebaran Hara Makro dan Rekomendasi Pemupukan untuk Tanaman Tebu (Saccharum officinarum Linn.) Basuki Basuki; Benito Heru Purwanto; Bambang Hendro Sunarmito; Sri Nuryani Hidayah Utami
Jurnal Ilmu Pertanian Vol 18, No 3 (2015): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.096 KB) | DOI: 10.22146/ipas.10614

Abstract

Analisis Nilai Tambah Agroindustri Sale Pisang di Kabupaten Kebumen Uswatun Hasanah; Masyhuri Masyhuri; Djuwari Djuwari
Jurnal Ilmu Pertanian Vol 18, No 3 (2015): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (93.616 KB) | DOI: 10.22146/ipas.10615

Abstract

Contribution of Agricultural Sector and Sub Sectors on Indonesian Economy Refa’ul Khairiyakh; Irham Irham; Jangkung Handoyo Mulyo
Jurnal Ilmu Pertanian Vol 18, No 3 (2015): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.246 KB) | DOI: 10.22146/ipas.10616

Abstract

This research aimed to analyze trend of agricultural GDP and agricultural contribution in Indonesia, and identify the role of agricultural sector and sub sectors in provinces of Indonesia. Source of data this research use linear trend analysis to analyze trend agricultural Gross Domestic Product (GDP) and agricultural contribution. Location Quotient (LQ), Dynamic Location Quotient (DLQ), and combination LQ and DLQ is used to identify the role of agricultural sector and sub sectors. The analysis found that agricultural GDP in Indonesia has increasing trend while agricultural contribution has decreasing trend. Agricultural sector is basic sector in 29 provinces in Indonesia. Farm food crop is leading sub sector in 6 provinces, farm non food crops is leading sub sector in 14 provinces, livestock is leading sub sector in 3 provinces, forestry is leading sub sector in 1 provinces, fishery is leading sub sector in 5 provinces.
Analisis Efisiensi dan Daya Saing Komoditas pada Sistem Usahatani Integrasi Jagung-Sapi di Kabupaten Kupang Siviardus Marjaya
Jurnal Ilmu Pertanian Vol 18, No 3 (2015): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.999 KB) | DOI: 10.22146/ipas.10617

Abstract

Sistem usahatani integrasi jagung-sapi sangat menentukan keberhasilan produk yang bisa bersaing dipasar, sekaligus membuka peluang kesempatan kerja dan memberikan pendapatan bagi petani. Penelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi produksi, pendapatan, efisiensi dan daya saing sistem usahatani integrasi jagung-sapi di Kabupaten Kupang. Model analisis yang digunakan adalah analisis fungsi produksi Stochastic Frontier Cobb-Douglas model Battese and Coelli, 1995 dengan opsi Technical Efficiency Effect Model. Hasil pendugaan fungsi produksi stocastik frontier secara teknis telah efisien, dengan nilai efisiensi teknis rata- rata adalah 0,957 untuk komoditas jagung, dan ternak sapi potong adalah 0,999. Pendugaan fungsi biaya menunjukan bahwa nilai efisiensi biaya (cost efficiency) usahatani integrasi jagung-sapi lebih besar dari satu (CE >1) yakni 1.009 dan 1.268. Artinya penggunaan biaya faktor produksi pada usahatani integrasi jagung-sapi harus dikurangi agar dapat mencapai efisiensi yang optimal. Hasil PAM menunjukan bahwa usahatani integrasi jagung-sapi efisien secara finansial, memiliki keunggulan kompetitif dan dapat memacu pertumbuhan produksi. Sedangkan secara ekonomi atau memiliki keunggulan komparatif.

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