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Jurnal Ilmu Pertanian
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Core Subject : Agriculture,
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Articles 7 Documents
Search results for , issue "Vol 3, No 2 (2018): August" : 7 Documents clear
Growth and Yield of Shallot (Allium cepa L. Aggregatum group) with Application of Beneficial Microorganisms Taufiq Hidayat; Prapto Yudono; Endang Sulistyaningsih; Arif Wibowo
Jurnal Ilmu Pertanian Vol 3, No 2 (2018): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1202.284 KB) | DOI: 10.22146/ipas.26749

Abstract

Shallot (Allium cepa L. Aggregatum group) is one of the most widely utilized vegetables by Indonesian people. Some technologies have been adapted to improved shallot productivity. One of those are the application of beneficial microorganisms. We applied mycorrhizal fungi, Trichoderma sp., and Bacillus thuringiensis as well as the combination among these microorganisms were applied in Shallots cultivation and were investigated to improve the growth and development of shallot. A field experiment was arranged in a Randomized Complete Block Design with two treatment factors. The first factor consisted of two shallot cultivars, namely Biru Lancor and Crok Kuning; whilst the second factor consisted of six beneficial microorganism treatments, i.e. control, mycorrhizae, Trichoderma sp., Bacillus thuringiensis, the combination of mycorrhizae and Trichoderma sp., and the combination of those three microorganisms. The observation was conducted on infection percentage of mycorrhizae, total population of Trichoderma sp., leaf area, leaf area index, net assimilation rate, crop growth rate, harvest index, and plant yield. The data obtained were subjected to analysis of variance (ANOVA) and continued with Duncan’s Multiple Range Test (DMRT) at 5% significance level. The results showed the leaf area of shallot was improved as affected by the application of mycorrhizal fungi. The effectiveness and implication of mycorrhizal fungi on shallot growth would decrease if the application of was combined with other microorganisms. However, the application of beneficial microorganisms had not been able to increase component yield and yield of Biru Lancor and Crok Kuning, indicated by bulb weight, number of bulb, bulb diameter, number of bulb per cluster, and bulb yield per hectare.
Effect of Cropping Pattern and Fertilizer Dose Applied in Raised-Bed on The Growth and Yield of Rice (Oryza sativa L.) in Sunken-Bed of The Surjan Rice Field Damar Suryaningndari; Didik Indradewa; Budiastuti Kurniasih; Endang Sulistyaningsih
Jurnal Ilmu Pertanian Vol 3, No 2 (2018): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1207.166 KB) | DOI: 10.22146/ipas.31420

Abstract

Surjan system (alternating bed system) is an agricultural system that combines dry and wet bedding system. It integrates food crop culture in the sunken-bed and annual crops in the raised-bed of the rainfed rice field. In Bantul, farmers commonly apply Surjan system in rice field by growing shallot (Allium cepa L. aggregatum group) and chili (Capsicum annuum L.) in the raised-bed, whereas no crop is grown in the sunken-bed. This present experiment evaluated the utilization of the sunken-bed for rice cultivation by utilizing fertilizer runoff from the raised-bed. Rice plants in the sunken-bed were not fertilized due to the expectation that it could utilize the fertilizer runoff from the raised-bed. The cropping pattern and the fertilizer dose in the raised-bed are suspected to affect the growth and yield of rice in the sunken-bed. The purpose of this study was to determine the effect of cropping pattern and fertilizer dose applied in raised-bed on the growth and yield of rice in sunken-bed of the Surjan rice field. This study were laid out in a split plot design with three replication. The main plot consists of two cropping pattern, namely shallot monoculture and intercropping shallot with chili. The fertilizer dose applied in raised-bed, namely 100% farmer's habit; 50% farmer’s habit; and 25% farmers' habit, occupying the sub plot. Dose of fertilizer applied in riased- bed according to the farmer's habit in research locatin is 622 kg NPK/ha (16-16-16) ; 228 kg ZA/ha and 76 kg KCl/ha. The results showed that there was no interaction between the cropping pattern and the fertilizer dose applied in the raised-bed on the growth and yield of rice in the sunken-bed. Compared with shallot monoculture, intercropping shallot with chili in raised-bed decreased the growth of rice in the sunken-bed. Compared with the 100% fertilizer dosage of farmer's habits, the fertilizer dose of 50% of the farmer's habits in the raised-bed increased the growth of rice in the sunken-bed. Cropping pattern and fertilizer dose in the raised-bed did not significantly affect the rice yield grown in the sunken-bed of the Surjan rice field.
Growth and Yield of Rice (Oryza sativa L.) Under Raised- and Sunken-Bed System as Affected by Saline Irrigation in Baros, Bantul, Yogyakarta Nafi'atul Muflikhah; Budiastuti Kurniasih; Tohari Tohari
Jurnal Ilmu Pertanian Vol 3, No 2 (2018): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1205.396 KB) | DOI: 10.22146/ipas.32153

Abstract

It is expected that by utilizing marginal land (e.g. saline field) is able to increase rice production under saline condition. One of integrated approaches that can be applied is a raised- and sunken-bed system. This experiment aimed to investigate the growth and yield of rice under raised- and sunken-bed system as affected by saline irrigation. The field experiment was conducted at Baros Helmet, Bantul District, Yogyakarta from October 2016 to February 2017. The experiment was arranged in a multi-location (oversite) design, consisted of saline irrigation (S1) and nonsaline irrigation (S0) in a raised-bed (A1) and sunken-bed (A0) planting system. The observations were done on leaf area index, chlorophyll a, chlorophyll b, total chlorophyll, photosynthesis rate, total dry weight, root length, leaf Na+ and K+ concentration, proline concentration, maturity and dry grain yield (DGY). The results showed that saline irrigation negatively affected leaf area index, photosynthetic rate and root length of rice grown at sunken-bed. However, leaf Na+ concentration and leaf proline concentrations of rice grown at sunken-bed were higher. The leaf K+ concentration decreased with increasing Na+ concentration. Although saline irrigation could accelerate harvesting age of rice grown at sunken-bed, the dry grain yield of rice grown at sunken-bed did not significantly different with that of rice grown at raised-bed.
Genetic Variation in Selected Individuals Based on Number of Capsule in M5 Sesame Mutan Lines Detected by RAPD Masruru Kholida; Taryono Taryono; Rani Agustina Wulandari
Jurnal Ilmu Pertanian Vol 3, No 2 (2018): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7049.749 KB) | DOI: 10.22146/ipas.32699

Abstract

Sesame (Sesamum indicum L.) is major oilseed crops with advantages in health and food industry. Due to self pollinated crop, breeding program in sesame utilized gamma rays irradiation to increase genetic variation. The research material consisted of 164 genotypes from 22 selected individual mutant line based on the number of capsules in M5 generation. This study is to detect genetic variation in selected individuals based on number of capsules in M5 generation of sesame mutant line using RAPD markers. The analysis consists of percentage of polymorphic loci, analysis of molecular variance and visualized in cluster and co-ordinate analysis. Fifteen primers RAPD were able to amplified 237 loci. Each genotype in populations had the similarity coefficient of 0.29 – 0.85. Variance within selected individual line (66%) was higher than variance among selected mutant lines (34%). Variance in each selected individual line contributed to its high value. Line 34 showed the lowest polymorphism (23.21%) and line 19 depicted the highest polymorphism (61.60%).  
Diversity Analysis of 15 Hibiscus Accession Based on RAPD Marker Miranda Ferwita Sari; Aziz Purwantoro
Jurnal Ilmu Pertanian Vol 3, No 2 (2018): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2477.064 KB) | DOI: 10.22146/ipas.33211

Abstract

Genus Hibiscus consist of 300 species in tropical and subtropical regions. Indonesia has many species of Hibiscus genus such as Hibiscus rosa-sinensis, kenaf, rosella, waru, sharon, and others. These species have similar flower morphology despite their different benefits. Flower morphology can be use as morphological marker characters to identify the genetic relationship in one genus of Hibiscus. However, morphological markers are less accurate because they are strongly influenced by the environment, requiring quite amount of time, and showing limited and inconsistent diversity. These limitations make researcher chooses molecular markers that are considered more accurate because the material used is plant DNA. One of the most used molecular marker is Random Amplified Polymorphic DNA (RAPD). This study used DNA extraction from the leaf of 15 Hibiscus genus. The next steps were DNA quantification, temperature and primer optimization, DNA amplification with PCR, electrophoresis with agarose gel, and data analysis. The result showed 10 primers operon used for Hibiscus to produce many polymorphic bands. Analysis result showed a high diversity in control population (Hibiscus cannabinus (K1), Hibiscus sabdariffa (K2) Hibiscus mutabilis (K3), Hibiscus syriacus (K4), Hibiscus schizopetalus (K5)) while in Hibiscus rosa-sinensis, the diversity was low especially on the genotypes of flowers with the same color. Molecular marker is a right way to identify the diversity in a population. Control group which consist of Hibiscus cannabinus, Hibiscus sabdariffa, Hibiscus mutabilis, Hibiscus syriacus and Hibiscus schizopetalus has high heterozygosity means control group has high diversity. From the PCA result, grouping in control plants is based on their age (perennial and annual), while in Hibiscus rosa-sinensis the grouping is based on the flowers color. Hibiscus rosa-sinensis is cross pollinated plants caused the position stigma higher than anthers, its prooved by this experiment that varians within population Hibiscus rosa-sinensis higher than among population.
GGE Biplot Analysis of Multi-Environment Yield Trials in Soybean Promising Lines Ayda Krisnawati; M. Muchlish Adie
Jurnal Ilmu Pertanian Vol 3, No 2 (2018): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3012.466 KB) | DOI: 10.22146/ipas.33593

Abstract

Soybean in Indonesia is grown in diverse agro-ecological environments. The performance of soybean yield often varies due to significant genotype × environment interaction (GEI), therefore the yield stability of performance is an important consideration in the breeding program. The aim of the research was to exploring the GEI pattern and yield stability of soybean promising lines in the tropics using GGE (Genotype and Genotype by Environment Interaction) biplot method. A total of 16 soybean promising lines were evaluated in ten environments during 2016 growing season. The experiment was arranged in a randomized completely block design with four replicates. The analysis of variance revealed that environments (E) explained the highest percentage of variation (51.45%), meanwhile the genotypes (G) and genotype × environment interactions (GEI) contributed for 3.24%, and 14.59% of the total variation, respectively. Seed yield of 16 soybean promising lines ranged from 2.41 to 2.83 t.ha-1 with an average of 2.74 t.ha-1. Joint effects of genotype and interaction (G+GE) which was partitioned using GGE biplot analysis showed that the first two components were significant, explaining 60.88% (37.89% PC1 and 22.98% PC2) of the GGE sum of squares. Indonesia can be divided into at least four putative mega environments for soybean production. The GGE biplot identified G10 as high yielding and stable promising line, thus recommended to be developed in multi-environment in tropical regions of Indonesia.
Biochemical Changes of Three Cocoa Clones (Theobroma cacao L.) Under Drought Stress Fakhrusy Zakariyya; Didik Indradewa
Jurnal Ilmu Pertanian Vol 3, No 2 (2018): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (128.216 KB) | DOI: 10.22146/ipas.37495

Abstract

Drought stress is a serious threat for cocoa production. One of the plant mechanisms to survive from the drought stress is through producing some biochemical compounds. The objective of this research was to know biochemical changes in three cocoa clones during drought stress. The research was conducted at the green house of Indonesian Coffee and Cocoa Research Institute from January – December 2017. The experiment was designed by using Randomized Complete Block Design (RCBD) with 2 factors and with 3 replications. The first factor was clones of scion that consisting KW 641, Sulawesi 1 and ICS 60 which each of its grafted to Scavina 6 clone as rootstock. The second factor was watering intervals which consisting; every 2 days / regularly watering (adequate of water), every 5 days (moderate drought), and every 8 days (severe drought). The result of this research showed that drought stress decreased chlorophyll content, increased hydrogen peroxide content (ROS), increased the activity of superoxide dismutation (SOD), increased ascorbic acid content, increased total phenolic content, and increased proline content. Sulawesi 1 and KW 641 clones showed lower hydrogen peroxide (ROS) content, while chlorophyll content, SOD activity, total phenolic content, ascorbic acid content, and proline content were higher compared with ICS 60 clone. It showed that Sulawesi 1 and KW 641 clones had more drought-resistance compared with ICS 60 clone.

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