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jurnal Ilmu Pertanian (Agricultural Science)
Published by Universitas Gadjah Mada
ISSN : 01264214     EISSN : 25277162     DOI : https://doi.org/10.22146/ipas
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Ilmu Pertanian (Agricultural Science) with registered number ISSN 0126-4214 (print) ISSN 2527-7162 (online) is a scientific open access journal published by Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI (Perhimpunan Sarjana Pertanian Indonesia). Ilmu Pertanian (Agricultural Science) provides a forum for the publication of scientific articles in the scope of agricultural sciences with priority on science and plant technology (plantation, horticulture, and forestry), including aspects of postharvest and socioeconomic. Ilmu Pertanian (Agricultural Science) is published three times annually, April, August, and December.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 7 Documents
 1 
Search results for , issue "Vol 2, No 3 (2017): December" : 7 Documents clear
Growth and Yield of Upland Rice Under Intercropping System with Soybean in Sandy Coastal Area Fajrin Pramana Putra; Prapto Yudono; Sriyanto Waluyo
Jurnal Ilmu Pertanian Vol 2, No 3 (2017): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.25215

Abstract

Sandy coastal area in Indonesia is potential for upland rice cultivation, but it has constraints low of nutrient availability such as nitrogen. To solve the low fertility of the sandy land can be done by planting soybean between upland rice under intercropping system due to the soybean is able to provide nitrogen in soil through fixation of N2 in the air by root nodules. Intercropping is an alternative cropping system to increase land productivity, but there is competition between crops under an intercropping system. Reducing of the competition on the system is needed by crops proportion adjustment. The objective of the study is to examine growth and yield component of upland rice at different crops proportion under an intercropping system with soybean in the sandy coastal area. The research was conducted in Samas sandy coastal area, Bantul, Yogyakarta. This research used randomized complete block design (RCBD) with one factor and three blocks. The treatment of this research was five level crops proportion between upland rice and soybean under intercropping system, namely: 100:0; 80:20; 60:40; 40:60; and 20:80, respectively. The results showed that crop growth rate and yield per clump of upland rice increased on crops proportion adjustment under intercropping system with soybean. The crops proportion of 60:40 and 40:60 gave higher crop growth rates that were 1.45 g.dm-2.wk-1 and 1.44 1.45 g.dm-2.wk-1 than upland rice under monoculture (100:0) that was 1.09 g.dm-2.wk-1. The higher crop growth rates in crops proportion of 60:40 and 40:60 were able to give better yield per clump than other that were 17.17 g and 16.46 g, respectively. The yield of upland rice was not different under crops proportion of 100:0, 80:20, and 60:40 and decreased of upland rice proportion until ≤ 40% affected the low yield of upland rice.
Callus Induction on True Shallot Seed Explant Using a Combination of BA and 2,4-D Krisna Dharmayanti; Endang Sulistyaningsih; Rani Agustina Wulandari
Jurnal Ilmu Pertanian Vol 2, No 3 (2017): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.26276

Abstract

BA and 2,4-D combination were commonly used for in vitro culture of Shallot (Allium cepa L. var agregatum 2n = 2x = 16) to induce callus, but there was no information for callus induction on shallot seed (TSS) explant. Callus could be utilized for in vitro selection and generating of genetic variation. The aims of the research was to identify the response of TSS (Trisula and Tuk Tuk) as explant  and to obtain the optimum combination of BA and 2,4-D (mg.L-1): (0–0, 2–1, 2–2, 2–3, and 2–4) in callus induction. The research had been carried out in the Tissue Culture Laboratory, Faculty of Agriculture, Universitas Gadjah Mada during the year 2015-2016. Factorial treatments of variety and growth regulators were arranged in Completely Randomized Design with four replications. Data of percentage of germination, shoot height, root length, percentage of callus formation, callus weight, and chromosomes number of callus were recorded. The results showed that combination of 2 mg.L-1 BA + (1– 4) mg.L-1 2,4-D induced callus formation on TSS but inhibits shoots and roots growth. The best callus proliferation was at a concentration of 1 mg.L-1 2,4-D. Tetraploid callus chromosomes (2n = 4x = 32) was detected in Trisula grown in the 2 mg.L-1 BA + 4 mg.L-1 2,4-D, but in the Tuk Tuk callus did not detected the changing of chromosomes number.
The Growth of Two Cultivars Mung Bean under different Sweet Corn Shelter Density in Sandy Soil Coastal Area Dwi Astutik; Prapto Yudono; Sriyanto Waluyo
Jurnal Ilmu Pertanian Vol 2, No 3 (2017): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.26703

Abstract

The experiment had been conducted from August to November 2016 at Samas sandy soil coastal area. The research aimed to determine growth response of mung bean sheltered by various density of sweet corn on coastal sandy soil. The experiment used the nested design with two factors with three replications.The first factor was density of sweet corn as shelter consisting of without shelter (S0), planting space of 15 × 40 cm (S1), and planting space of 30 × 40 cm (S2). The second factor was mung bean cultivars compiled of Vima 1 (V1) and Purworejo local cultivar (V2). The data of soil temperature, soil moisture content at the depth of 10 and 20 cm, soil salt content at 10 and 20 cm depth, leaf fresh and dry weight, root fresh and dry wieght, plant fresh and dry weight were collected. The effect of shelter density was on the leaves dry weight at 6 week after planting (WAP), meanwhile the mung bean cultivars influenced the soil moisture at 10 and 20 cm depth; leaves fresh weight, leaves dry weight, root fresh weight, and plant dry weight at 4 WAP. Vima 1 resulted in significantly higher compared to Purworejo local cultivar on soil moisture content in 10 and 20 cm, leaves fresh and dry weight, root fresh weight, plant fresh and dry weight at 4 WAP. There was interaction between sweet corn shelter density and mung bean cultivar on soil salt content at 10 cm (2 WAP), 20 cm (6 WAP), plant fresh weight at 4 and 6 WAP, and plant dry weight at 6 WAP. The best growth of mung bean was observed under higher level density shelter with 15 × 40 cm square planting space due to the deeper soil layer and lower salt content.
The Effect of Plant Growth Regulator on Duku (Lansium domesticum Corr.) Flower for Fruit Formation Susilawati Susilawati; Lidwina Ninik S.; Mery Hasmeda; Irmawati Irmawati
Jurnal Ilmu Pertanian Vol 2, No 3 (2017): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.28293

Abstract

Plant growth regulators have a significant impact on increasing both quality and quantity of plant yield for either mixed or separated application. The research was aimed to identify the effect of spraying  plant growth regulators on duku flowers for fruit formation. The research was conducted from December 2014 to May 2015 in Sijacarana Local Technical Implementation Unit (UPTD) of Propagation, South Sumatra Province in Ogan Komering Ulu (OKU) Timur Regency. Duku tree used was 15 years old with the height around 10 meter. Complete Randomized Design was used with 3 replications where duku trees as the replicates. The spraying  consisted of 3 single plant growth regulator treatments and 6 mixed treatments which were P1 (BAP 300 mg.L-1), P2 (NAA 300 mg.L-1), P3 (GA3 300 mg.L-1), P4 (BAP 100 mg. L-1 + GA3 200 mg.L-1), P5 (BAP 200 mg.L-1 + GA3 100 mg.L-1), P6 (BAP 150 mg.L-1 + GA3 150 mg.L-1), P7 (NAA 100 mg.L-1 + GA3 200 mg.L-1), P8 (NAA 200 mg.L-1 + GA3 100 mg.L-1), P9 (NAA 150 mg.L-1 + GA3 150 mg.L-1). Spraying was applied twice with a half dosage for each application. First application was performed about one month after flowering, and the second was one and a half month after flowering. Data were analyzed using analysis of variance and least significance difference at α 5%. The measurement of parameters were carried after harvest or 3 months after treatment. Results showed that plant growth regulator positively affected duku fruit formation. GA3 treatment then was considered as the best treatment as it had a unison in fruit maturity, the highest number of fruit per bunch, weight per fruit and total fruit weight per bunch, and had the lowest number of green fruit and seed per fruit.
The Effects of Filter Cake and Bagasse Ash to Growth and NPK Uptake by Sugarcane (Saccharum Officinarum L.) at Ultisols in Tulang Bawang, Lampung, Indonesia Heri Soegianto; Azwar Ma’as; Makruf Nurudin; Sri Nuryani Hidayah Utami
Jurnal Ilmu Pertanian Vol 2, No 3 (2017): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.30098

Abstract

The available soils for surgarcane plantation is Ultisols. However, the Ultisols has some limitations on its chemical fertility. Efforts to improve the quality of the soil can be done with applying organic matter such as filter cake and bagasse ash resulting from the process of making sugar from sugarcane. This study was proposed to determine the effects of bagasse ash and filter cake to availabilities of NPK in the soil and NPK uptakes by sugarcane, so that they were expected to be able to improve maximum sugarcane growth in Ultisols in Tulang Bawang. This field research used completely randomized design with two factors. The first factor was the bagasse ash doses in four levels: without bagasse ash (A0), 10 ton/ha of dry bagasse ash (A1), 20 ton/ha of dry bagasse ash (A2), and 40 ton/ha of dry bagasse ash (A3). The second factor was the filter cake doses in four levels: without filter cake (B0), 20 ton/ha of dry filter cake (B1), 40 ton/ha of dry filter cake (B2), and 80 ton/ha of dry filter cake (B3). There were a total of 16 combinations of treatment with 3 blocks as repetitions. Data were analyzed by using F-test with 5% significance. When analysis result showed significant differences between treatments, it was then followed by DMR test with 5% significance level for normal data. The results showed that the improvement of NPK status of Ultisols in Lampung might be achieved by applying the filter cake and bagasse ash techniques. Some results of this study showed that treatment of 40 ton/ha bagasse ash for NPK uptakes was significantly different and higher than without bagasse ash treatment. Treatment of 80 ton/ha filter cake for NPK uptakes was significantly different and higher than without filter cake treatment. The highest N uptake (27.84 kg/ha) was in sugarcane at 2 MAP with 80 ton/ha filter cake treatment. The highest P uptake (11.59 kg/ha) was in sugarcane at 2 MAP with 40 ton/ha bagasse ash treatment. The highest K uptake (117.67 kg/ha) was in sugarcane at 8 MAP with 80 ton/ha filter cake treatment. Treatment of 80 ton/ha filter cake influenced significantly to the sugarcane height compared to without filter cake and 20 ton/ha filter cake treatment, but it did not differ significantly compared to 40 ton/ha filter cake treatment. The highest sugarcane (167.99 cm) was at 80 ton/ha filter cake treatment. Filter cake dose treatments did not influence significantly the numbers of saplings and stem diameter of sugarcane aged 8 MAP.
Effect of Humic Acid and Molybdate on Phosphate Adsorption in Typic Hapludult of Cigudeg, Bogor Heri Wibowo; Benito Heru Purwanto; Supriyanto Notohadisuwarno
Jurnal Ilmu Pertanian Vol 2, No 3 (2017): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.31093

Abstract

Humic acids containing carboxyl and hydroxyl groups that have the ability to cover the P adsorption  site in Typic Hapludults. Molybdate has similarity behaviour with phosphate in theacid soils. Research aim was to study the effects of molybdate and humic acid to the kinetics of phosphate adsorption in Typic Hapludults of Cigudeg, Bogor. Important of kinetics is to get accuration of materials transport, to control influence on anion mobility, that the assessment is needed for the efficient application of Mo and P. Aplication humic acid and molybdate as competitor anion of phosphate was conducted with combination of humic acid and Mo concentration as double anions. Many models describe the kinetics for the adsorption of phosphate by soils i.e. zero order, first order, second order, and Elovich. As ststistically, there was not interaction of humic acid and molybdate on P adsorption. Application of humic acid with rate of 100 mg.L-1 was not effective decrease P adsorption in Typic Hapludults. It was due to the pH of the adsorption system that get near to its pKa of carboxyl gruop about 5. Meanwhile aplication 2 and 5 mmol.L-1 of molybdate significantly decrease of P adsorption. The second order kinetics models apropriate to the adsorptionof P in the Typic Hapludults of Cigudeg, with determination coefficients value (R2) of  0.999-1 and standard error  value (SE) of 0.001–0.011.The results suggest that the molybdate as competitor anion affected the kinetics for the adsorption of phosphate due to the charge of molybdate.
Genetic Diversity of Local Maize Germplasm of Tana Toraja South Sulawesi Using SSR (Simple Sequence Repeat) Markers Ramlah Ramlah; Isna Rasdianah Aziz; Cut Muthiadin; Mashuri Masri; Muhammad Khalifah Mustami; Marcia Bunga Pabendon
Jurnal Ilmu Pertanian Vol 2, No 3 (2017): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.33085

Abstract

Plant genetic diversity is an emerging variation in a crop group caused by its genetic factors. Local corn germplasm as a source of plant genes that are able to adapt to the local environment. The purpose of this research is to obtain information on genetic variation of Tana Toraja local maize germ plasm using SSR (Simple Sequence Repeat) marker. This research was conducted at Balitsereal Molecular Biology Laboratory, Agricultural Research Agency in Maros Regency, South Sulawesi. A total of 4 local maize populations were analyzed by laboratory experimental method with observation with NTSYS pc 2.1 program. The results showed that the average number of alleles was 3.72 alleles per locus and the polymorphism rate of 0.53 with the genetic similarity coefficient was in the range of 0.47 to 0.85. 2 main clusters formed in the genetic similarity coefficient 0.47. Klaster I is Local DallePondan and Local Purple. Klaster II is Local Bebo and Kandora. The genetic distance is in the range of 0.15 to 0.74 with an average genetic distance of 0.46. From the data obtained shows that the 4th germplasm of the population of Tana Toraja Local maize diteleti has a very informative level of genetic diversity. Genetic diversity of local maize germplasm of Tana Toraja, can be used as a source of genes in the assembly of improved varieties in the future.

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