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INDONESIA
Jurnal Penelitian Tanaman Industri (Littri)
Published by Pusat Penelitian dan Pengembangan Perkebunan
ISSN : 08538212     EISSN : 25286870     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Tanaman Industri (JLITTRI) aims to publish primary research articles of current research topics, not simultaneously submitted to nor previously published in other scientific or technical ojournals. General review articles will not be accepted. The journal maintains strict standards of content, presentation,and reviewing. SCOPE The journal will consider primary research papers from any source if they make an original contribution to the experimental or theoretical understanding and application of theories and methodologies of some aspects of agricultural science in Indonesia including: Estate crops; Soil science; Climate science; Agronomy; Plant breeding; Biotechnology; Genetic resources; Plant pathology; Plant physiology; Entomology; Farming system; Postharvest technology; Socio-economic agriculture; Environment; Agricultural extension. The journal publishes Indonesian or English articles. Since the year of 2017, the jurnal is published twice a year in (June and December).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 26, No 1 (2020): June, 2020" : 6 Documents clear
ROOT TRAINER MEDIA CONTAINING COCOPEAT AND PEAT TO SUPPORT GROWTH AND QUALITY OF RUBBER ROOTSTOCK ROOTS Nur Eko Prasetyo; Budi Setyawan; Samijan Samijan; Nofitri Dewi Rinojati; Sumarmadji Sumarmadji
Jurnal Penelitian Tanaman Industri Vol 26, No 1 (2020): June, 2020
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v26n1.2020.23-31

Abstract

The physical and chemical properties of the growing medium for root trainer of rubber are critical to support plant growth. This study aimed to obtain the best medium for growing rootstock rubber seedlings in the root trainer.  Rubber clone PR 300 seeds were germinated for 21 days, then raised in root trainer pots for five months. The treatments evaluated were a mixture of cocopeat, Rawapening peat, and manure at different ratios.  The experiment was designed in a Randomized Block Design, three replications, 30 plants per replicate, totaling 720 plants. The observed variables were N, P, K, Mg, C-organic content, pH, and cation exchange capacity of cocopeat, peat, and manure, as well as plant growth (height, stem diameter, wet weight, and dry weight). ANOVA used for analyzing data, followed with the Duncan Multiple Range Test at 5% level. The results showed that there were three best root trainer media for PR 300 rubber rootstock seedlings were a mixture of cocopeat + peat (1:1), cocopeat + peat + manure (1:2:1), and cocopeat + peat + manure (2:1:1). The growth and compactness of the roots are outstanding, so the seedlings are easily removed from the root trainer pots without significant damage. Based on the initiation and cost, the best root trainer medium is a mixture of cocopeat + peat + manure (1: 2:1). It is necessary to study the use of other types of peat soils apart from Rawapening. Also, it needs to be observed further plant growth after inoculation with the stem and after planting in the field.Keywords : Planting medium, Rawapening peat, rubber clone PR 300.
POTENCY OF BLACK TEA FILTRATE AS UV PROTECTANT TO S/NPV JTM 97 C IN CONTROLLING HELICOVERPA ARMIGERA ON SOYBEAN Anella Retna Kumala Sari; Tiara Eka Ariestantia; Fery Abdul Choliq
Jurnal Penelitian Tanaman Industri Vol 26, No 1 (2020): June, 2020
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v26n1.2020.40-48

Abstract

Helicoverpa armigera is the important pest on soybean which  usually controlled by chemical insecticide spraying, so it should be replaced by naturally control using biological agents such as Spodoptera litura Nuclear Polyhedrosis Virus (S/NPV) JTM 97 C. It has some weakness such as during it’s applied in the field the effectiveness can become decreased after exposure the sunlight, especially ultraviolet (UV) so it needs the protective material, such as black tea filtrate which is known containing epigallocatechin gallate, caffeic acid, and apigenin which have role as UV protectors. This research aimed to investigate the potential of black tea filtrate to protect the S/NPV JTM 97 C from UV in controlling of H. armigera. The research was conducted in Pests and Diseases Laboratory on Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Kendalpayak, Malang from January to June 2015. The research used Completely Randomized Design with seven treatments and four replications. They were S/NPV JTM 97 C without UV protectant as control (P1), S/NPV JTM 97 C + kaolin as comparison (P2), S/NPV JTM 97 C + black tea  filtrate concentration 0.5 (P3), 1.0 (P4), 1.5 (P5), 2 (P6), and 2.5% (P7). Results showed that all of the protective materials of black tea filtrate were unable to provide mortality of H. armigera larvae better than kaolin. Kaolin can cause mortality of H. armigera larvae up to 82,50%. All of Black tea filtrate concentrations tested were not able  to be used as  protectant of  S/NPV JTM 97 C due to it can only cause mortality of H. armigera up to 47,50% .  Keywords: Entomopathogenic virus,  LC50, protectant material,  pest.
EFFECTIVITY OF DRYING METHODS TO MINIMIZE AFLATOXIN OF DRIED NUTMEG Sembiring, Bagem BR.; Supriadi, Supriadi; Ediningsih, Ediningsih
Jurnal Penelitian Tanaman Industri Vol 26, No 1 (2020): June, 2020
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v26n1.2020.1-10

Abstract

Indonesian nutmeg export is constrained due to aflatoxin content that exceeds the minimum limit. This study was aimed at examining the effectiveness of three drying types of nutmeg to diminish aflatoxin contamination. The three drying types tested were (a) the rack type house with a source of solar energy heat combined with a kerosene stove fire, (b) the drying bases one meter above the ground with or without a black cloth cover, and (c) the floor drying 5 cm above the ground with or without black cloth cover. Unpeeled nutmegs were dried in the drying racks until they dried (sound when shaken by hand). After that they were. peeled and redried in the same type of dryer. Observation parameters included temperature, humidity, drying time, moisture content, oil content, oleoresin, myristicin, and aflatoxin content. The results showed that the drying time in the house-type drying rack was 51.5 hours, longer than the para-para and drying floor (30 hours). The temperature during drying in the drying house was 35.6-37.310C lower than the other two types of dryers. However, its humidity was the highest (40.71-49.33%). The moisture content of shelled nutmegs and peeled nutmegs from all drying types fulfill the requirements (< 10%). The total aflatoxin contamination in shelled nutmegs and peeled nutmegs was < 3.28 µg/kg, while B1 aflatoxin was < 1.06 µg/kg, so that they fulfilled SNI standard. All three drying types can be recommended to be tested further in field scale.Keywords: Nutmeg, Myristica fragrans, drying technology, seed quality.
EFFECT OF POTASSIUM ON GROWTH, YIELD AND QUALITY OF CITRONELLA GRASS Gusmaini Gusmaini; M. Syakir
Jurnal Penelitian Tanaman Industri Vol 26, No 1 (2020): June, 2020
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v26n1.2020.32-39

Abstract

Citronella grass nowadays are developed in the highland that dominated by Andosol soil type. Thus, it is important to find out the proper fertilizer dosage, especially potassium, for citronella grass cultivation in Andosol soil. This study aimed to obtain the optimal of potassium dosage for growth, production and quality of Citronella grass oil. It was conducted at Manoko research station in Lembang, Bandung West Java from July 2014 to August 2015. This research was arranged in randomized block design, with 5 treatments and 5 replication. The treatments consisted of 5 potassium dosages: 1) without potassium, 2) 30 kg/ha K2O, 2) 60 kg/ha K2O, 3) 90 kg/ha K2O, and 5) 120 kg/ha K2O. The application of potassium on Andosol enhanced plant growth, production and oil yield significantly.  However, it did not affect the quality of citronella grass oil (citronella and oil content) significantly. The application of 30 kg/ha K2O in citronella grass cultivation on Andosol has the best result. The oil yield was 1.20% (the 1st harvest), 1.28% (The 2nd harvest) and 1.23% (the 3rd harvest), with yield increment 6.9-7.5%. Oil content was 1,40-1,70%. The K nutrient uptake also improved around 11.76%. Citronella content from all treatments ranged from 36.97-37.68%. This result suggested that the low dosage of potassium in Andosol was sufficient to enhance primary metabolites process (indicated by growth and yield). However, it had no direct effect on the secondary metabolite process (represented by essential oil and citronella content). Based on the soil analysis after trial, the K residues in the soil was still high. However, its availability for the plants had to be tested further.Keywords: Cymbopogon nardus, citronella content, oil content, oil yield, potassium.
SUGARCANE FARM EFFICIENCY IN GORONTALO PROVINCE Jaka Sumarno; Rahmat Hanif Anasiru; Erna Retnawati
Jurnal Penelitian Tanaman Industri Vol 26, No 1 (2020): June, 2020
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v26n1.2020.11-22

Abstract

Sugarcane is an important commodity in Gorontalo Province. However, the development of sugarcane farming is constrained by limited cultivation land and low productivity of sugarcane. The government continues to improve farm productivity and efficiency through the application of technology, optimization of the use of agricultural tools and machinery, production input assistance, improvement of irrigation networks, and other supporting facilities. Increasing farm efficiency is vital to increase farmers' production and income. This study aimed to determine the technical capability, allocative, and economical of sugarcane farming, and find out the factors that influence the efficiency of sugarcane farming in Gorontalo. The study was conducted in 2017 with a survey method with questionnaires or a structured questionnaire. The research location was determined purposively in one of the sugar cane production centers of Gorontalo Province, namely Boalemo Regency. The selection of respondents was carried out by a simple random sampling technique with a total of 47 sugarcane farmers. The data analysis method uses the Cobb Douglas stochastic frontier production function with the Maximum Likelihood Estimates. Financial analysis of farming was done to determine the feasibility of sugarcane farming. The results showed that the average level of technical, allocative, and economic efficiency of sugarcane farming in Gorontalo were 0.90, 0.52, and 0.53, which means that sugarcane farming was technically efficient, but not yet allocatively and economically efficient. Six out of seven variables that influence the inefficiency of sugarcane farming were farmers' education, farming experience, frequency of counseling, participation in farmer groups, credit access, and technological assistance. The age variable does not significantly affect the technical inefficiency of sugarcane farming.Keywords  : Maximum Likelihood Estimates, sugarcane national production.
ANALYSIS OF GENETIC STABILITY OF MICROPROPAGATED SUGARCANE IN DIFFERENT SUBCULTURE FREQUENCIES USING SSR MARKER Alfia Annur Aini Azizi; Ika Roostika; Reflinur Reflinur; Darda Efendi
Jurnal Penelitian Tanaman Industri Vol 26, No 1 (2020): June, 2020
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v26n1.2020.49-57

Abstract

In vitro technique is an effective method to produce high quality and uniform sugarcane seedlings. This study was aimed to determine genetic stability based on SSR marker analysis of six varieties of sugarcane subcultured in regeneration media. It was conducted at the ICABIOGRAD Molecular Biology Laboratory, Bogor, from May 2015 to October 2016. Six sugarcane varieties (PS 862, PS 865, PS 881, PSJK 922, TK 386, and GMP 3) derived from apical shoot explants were subcultured on MS regeneration media enriched with 0.3 mg/l BAP; 0.5 mg/l IBA; and 100 mg/l PVP, for 3, 6 and 9 times. Sugarcane DNA was extracted using the CTAB method; then, the genetic stability was analyzed using 20 pairs of SSR primers. Data were analyzed in groups using the UPGMA method in the SAHN subprogram available on NTSYS software. The results showed that five sugarcane varieties (PS 865, PS 881, PSJK 922, TK 386, and GMP 3) subcultured up to nine times on the regeneration media remained genetically stable with similarity coefficient to their mother plants value more than 0.94.  However, PS 862 variety had genetically unstable after the sixth and the ninth subcultures, the similarity coefficient value to its mother plant was only 0.64, indicated that it experienced somaclonal variations. The study concluded that the in vitro shoots of the other varieties were more genetically stable during subcultures compared to PS 862 sugarcane variety based on SSR marker analysis. Further study is needed to find out the cause of genetic changes in PS 862.Keywords: Saccharum officinarum, apical shoots, in vitro propagation.

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