Article Per Year (5 Year)
p-Index From 2019 - 2024
0.444
P-Index
This Author published in this journals
All Journal Agrotrop : Journal on Agriculture Science Buletin Udayana Mengabdi Journal of Agricultural Science and Biotechnology E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Indonesian Journal of Mathematics and Natural Sciences Advances in Tropical Biodiversity and Environmental Sciences
I Ketut Siadi
Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana, Denpasar
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Environmental Science Mathematics Veterinary

Published : 23 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search
Journal : E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)

 1   2 
Uji Efektifitas Bakteri Antagonis Untuk Pengendalian Penyakit Layu pada Tanaman Stroberi SHAH KANIGARA ASADDIARI; GUSTI NNGURAH ALIT SUSANTA WIRYA; I KETUT SIADI; I MADE SUDANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.195 KB)

Abstract

Effectiveness Test of Antagonistic Bacteria to Control Strawberry Wilt Disease Strawberry (Fragaria sp.) Is a herbaceous fruit plant that was first discovered in Chile, USA. Bali Province is one of the provinces that produce strawberries inIndonesia. The development center for strawberry commodity in the Province of Baliis in the Bedugul area, that is in the Village of Pancasari, District of Sukasada andVillage of Candikuning, District of Tabanan. Since 2016, there have been quiteharmful disorders in strawberry plants in Bali due to wilting caused by the fungusFusarium oxysporum. Research on the effectiveness test of antagonistic bacteria tocontrol strawberry wilt disease was conducted in January 2019 to August 2019. Thepurpose of this study was to determine the ability of antagonistic bacteria to controlthe growth of wilt disease in strawberries in vivo. The method used is the isolation ofbacteria and pathogens, application of bacterial and pathogenic isolates, andobservation. The results of this study are that the P3 bacterial isolate is able to controlthe most effective pathogens with a disease percentage of 20 %.
Pengaruh Dry Heat Treatment Dan Pengokeran Terhadap Pertumbuhan Dan Kesehatan Bibit Cabai Rawit (Capsicum Frutescens L.) NI KADEK AYU WIDAYANTHI; I GUSTI NGURAH RAKA; I KETUT SIADI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.1, Januari 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.49 KB)

Abstract

Effect of Dry Heat Treatment and Container on Seeds Growth and health of Chilli Pepper (Capsicum frutescens L.)The dry heat treatment (DHT) technology had improve that it can inactivation viruses disease on seed, so it have to implement in seedling for production of healty seeds. This study was aims to determine of influense of DHT and container agains chilli papper of seed growth which healty and resistence against environment condition in fields. The design used in this study was completely randomized design with 4 treatments and 6 replications. The treatments were combined clod DHT, DHT combination of polybags, non-dry heat treatment (NDHT) clod or the ability of local farmers, and the NDHT combination polybags. The variables measured in this study include, germination, chlorophyll content, number of leaves, plant height, leaf area, root length, fresh weight and oven dry weight. The results showed that clod DHT most effective in producing healthy chilli papper seeds and able to adapt in the field. While NDHT was not effective in producing healthy chilli seeds and not able to adapt in the field.
Pengaruh Penggunaan Mulsa Plastik Terhadap Kelimpahan Serangga Myzus persicae pada Tanaman Cabai Rawit (Capsicum frutescens L.) KADEK DWI UTAMA; I GUSTI NGURAH BAGUS; I KETUT SIADI; DEWA NYOMAN NYANA; GEDE SUASTIKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.1, Januari 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.17 KB)

Abstract

ABSTRACT Effect of Plastic Mulch to Myzuspersicae Insect Abundance in Plant Cayenne Pepper (Capsicum frutescens L.)   Cayenne Pepperis one of theimportantvegetablesgrowncommerciallyinthe tropicsandoccupythe mostextensiveacreageamongother vegetablesin Indonesian. There are fivespeciesarecommonly cultivatedchiliCapsicumannuum(red pepper), C.frutescensL(cayenne pepper), andC.chinensis, C.bacctum, C.pubescens(chili gendot). However,theeconomicpotentialis a typeof chiliC.annuumandC.frutescensL. The purposeofthis study wastoknow theeffect of the useof plasticmulchoninsectabundanceMyzus persicaeoncropsandcayenne pepper. There arethree treatmentsbeing testedareplantingchiliusingblackplasticmulch(MH), a silverplasticmulch(MP) andplantingwithoutmulchorcontrol(K).The results showedthat theuse ofblack plasticmulchandsilverplasticmulchcannotpreventaphids andwhiteflyinchillicrop, however the presence ofblackplasticmulchandsilverplasticmulchcanreduceboththe insectpopulation. Key words :Cayenne Pepper,Myzus persicae, plastic mulch
Daya Simpan Benih Tomat (Lycopersicum esculentum mill.) Hasil Beberapa Teknik Ekstraksi I NYOMAN RAGANATHA; I GUSTI NGURAH RAKA; I GEDE KETUT SIADI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.3, Juli 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (72.456 KB)

Abstract

AbstractTomato Seed (Lycopersicum esculentum Mill.) Storability of Some Extraction Techniques Results                 Shelf life tomato seeds produced by different seed extraction techniques studied using completely randomized design ( CRD ) with three treatments of seed extraction technique and nine replicates. Three seed extraction techniques used are: extraction technique with 2 % HCl, washed with water extraction techniques, and extraction techniques with immersion in water for 24 hours. The seeds are dried until the moisture content ranges from 5 %, then stored at room temperature. Observations before storage include: seed moisture content, the amount of seed moisture content of 5 % per 5 g of seeds, seed purity, germination and speed of germination. Observations during storage include: seed moisture content,  germination and speed of germination. The results showed that the extraction technique of soaking seeds with 2 % HCl able to produce seeds with the lowest percentage of impurities so that the absorption of moisture during the storage period was also the lowest. Extraction technique of soaking seeds with 2 % HCl able to maintain the viability of the seed germination above 80 % until the 12 -week storage period at speeds high enough to germinate. While the seeds of other extraction techniques which have a shorter shelf life. Further research on the storage technique that is able to maintain the viability and vigor of tomato seeds for a longer shelf life.   Key words : Tomato seeds, extraction, seed storage, viability, vigor
Pengaruh Umur Panen terhadap Hasil dan Mutu Benih Kacang Panjang (Vignasinensis L.) NI KADEK DWIK PRADNYAWATI; I GUSTI NGURAH RAKA; I KETUT SIADI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.1, Januari 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (87.365 KB)

Abstract

The Effect of Harvesting Age on Seeds Production and Seeds Quality of Long Bean Seeds (Vigna sinensis L.) This research was conducted in January 2018 until May 2018 in Subak Sedang, Angantaka Village, Abiansemal District, Badung, Bali. This research aimedto determine the effects of time of harvesting after flowering on Long Bean seed physiological maturity and quality. This research in a one factor research with 3 differences of age of harvesting. The three age of harvesting : P1 (23 days after flowering), P2 (26 days after flowering), and P3 (29 days after flowering). Theresearch used a randomized block design (RBD) with 9 replications. Observations variables were made on number of pods, number of pithy seeds, weight of seeds per hectare, weight of 1000 seeds, viability and vigor. The results showed that the treatments of age of harvesting P2 (26 DAF) had an effect on the seed production and quality.
Toleransi Penundaan Prosesing Terhadap Mutu Fisik dan Mutu Fisiologis Benih Kedelai (Glycine max L. Merril) ROBERTO BOBHOPE ARUAN; I DEWA NYOMAN NYANA; I KETUT SIADI; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.2, April 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.192 KB)

Abstract

Tolerance of Processing Delay to Physical and Physiological quality of Soya Bean (Glycine max L. Merril) The aim of this research is to figure out the time of the tolerance processing delay so that the physical quality and the physiological quality of soya bean seeds could be defended. This research was started in April 2017 at Jalan Cekomaria, Denpasar and also at the Lab. Pemuliaan Tanaman dan Teknologi Benih Faculty of Agriculture Udayana University. The design method was used for this research is a randomized complete block design (RCBD) using five treatment and five-time repetitions consist of W0= Without using process, W1= 1 day of Delaying process W2= 2 days of Delaying process, W3 = 3 days of Delaying process, W4 = 4 days of Delaying process. The statistic test and analyzing variance statistical test shows different result, the procedure followed by LSD method (Least Significance Different) with 95% of confidence level using costat program.The result of physical analysis test, shows that the role of the seeds which is without delaying process showing that the percentage of the seeds was 87,36% and the result of 4 days delaying process seeds are 11,256%. The result of the physiological test of the seeds using germinating test was, W0 (95,16%) and W4 (94,72%). The percentage of the vigor will be decreasing, which is W0 (80,52%) and W4 (34,4%). The equality control of the percentage was W0 (90,3%) and W4 (70,68%). Result of the observation of electrical conductivity showing that the lowest point of the electrical conductivity control is W0 (5,112 ? mhos cm¯² g¹) and the highest value of electrical conductivity was shown on the W4 (7,302 ? mhos cm¯² g¹).
Pengaruh Infeksi Beberapa Jenis Virus terhadap Penurunan Hasil pada Tanaman Cabai Rawit (Capsicum frutescens L.) I WAYAN SUKADA; I MADE SUDANA; I DEWA NYOMAN NYANA; GEDE SUASTIKA; KETUT SIADI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.3, Juli 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.082 KB)

Abstract

ABSTRACT Effect of Infection of Some Viruses to the Decresing Yield on Rawit Pepper (Capsicum frutescens L.) This study aims to identify the types of viruses that infect the plants of chili pepper ( Capsicum frutescens L. ) in Kerta village, and to know the influence of some kind of viruses infection on yield decline. To verify the type of virus is done by taking a sample of the pepper plant leaf showing symptoms of the virus that has been demonstrated through serological and molecular tests. The results of this study indicate that the mosaic symptomatic chilli pepper plants were infected by some kind of virus such as CMV, TMV, and ChiVMV. Chilli pepper shows asymptomatic yellow were infected by the PepYLCV and chlorosis were infected by Polerovirus. The result of fruit chili harvest were showed the higher yields on the healthy plants with average 16.01 tonnes/ha, while the chilli that showed chlorosis symptomps were 8.42 tonnes/ha, and yellow symptomps were 3.07 tonnes/ha. The lowest were in the plants that shows mosaic symptomp with average 2.52 tonnes/ha. The virus infection caused the losses of yield of 47.40% in chlorosis symptomatic plants, 80.82% in the yellow symptomatic plant and 84.25%, in the mosaic symptomatic plants compared to healthy plants. High yield loss in the mosaic symptomatic plants were caused by the highest infection on chiilli pepper that infected by some kind of viruses.   Keywords : Chili pepper , mosaic, chlorosis, and yellow
Pengaruh Dry Heat Treatment dengan Penundaan Waktu Tanam Terhadap Pertumbuhan dan Hasil Tanaman Cabai Rawit (Capsicum Frutescens L.) I KADE DARMAWAN; I DEWA NYOMAN NYANA; I KETUT SIADI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.1, Januari 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.127 KB)

Abstract

The Effect of Dry Heat Treatment with Time Delay Planting on Plant Growth and Yield of Chili Pepper (Capsicum frutescens L.)Viral pathogens which cause disease is a major problem in reducing the production of chili pepper. The younger the plants are infected by the virus, the more severe symptoms of the disease caused. Based on this statement, it necessary to do a research that aims to determine the effect of Dry Heat Treatment with a delay time of planting on growth and yield of chili pepper. The research design used was a randomized block design with three treatments and nine replications. The treatments tested consists of Dry Heat Treatment with a delay time of planting (DHT + TT), Dry Heat Treatment (DHT), and control (NT). The growth variable and the yield that had been observed in these experiments were the plant height (cm), number of primary branches, leaf chlorophyll content, incidence of disease, and the yield (tons / ha). The results showed that Dry Heat Treatment with a delay time of planting (DHT + TT) provides better results in the cultivation of chili with 86.27 cm plant height increased by 106.83% compared with controls (NT), the number of branches 12.61 increased 41.53 % compared with controls (NT), and the yield 17.21 tons / ha increased by 256.87% compared with controls (NT).
Identifikasi Virus Yang Berasosiasi Dengan Penyakit Mosaik, Kuning, Dan Klorosis Pada Tanaman Cabai Rawit (Capsicum Frutescens L.) I GUSTI NGURAH BAGUS PRANATA PUTRA; NI MADE PUSPAWATI; I DEWA NYOMAN NYANA; I KETUT SIADI; GEDE SUASTIKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.3, Juli 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.646 KB)

Abstract

ABSTRACT Identification of virus that associated with Mosaic, Yellow, and Chlorosis disease on Chili Pepper (Capsicum frutescens L) This study aims to identify the types of viruses associated with mosaic, yellow, and chlorosis that infect the plants of chili pepper ( Capsicum frutescens L. ) in Kerta village, Gianyar. The method used is the ELISA (Enzyme Linked Immunosorbent Assay) and molecular techniques through PCR (Polymerase Chain Reaction). Research activities include (1) Survey endemic locations of viral diseases in Kerta village, Gianyar (2) Collecting leaf of chilli peper that shown, mosaic, yellowing and chlorosis (3) serology test by ELISA (4) molecular detection through PCR. The results show the percentage average of pepper plants showing mosaic symptoms (52.13%), yellow (22.75%), chlorosis (5.45%) and healthy plant (19.67%). Serology test by ELISA technique showed that the mosaic disease induced by the triple virus that is TMV, ChiVMV, and CMV, whereas yellow symptoms infected by PepYLCV and chlorosis symptoms, infected by Polerovirus. RT-PCR technique successfully amplify the target DNA fragment size of 650 bp for Polerovirus and PCR successfully amplified the target DNA fragment size of 700 bp for PepYLCV in accordance with the specific primers were used. Keywords : Chili pepper, mosaic , yellow, chlorosis
Pengaruh Penggunaan Jaring Berwarna Terhadap Kelimpahan Serangga Aphis gossypii pada Tanaman Cabai Rawit (Capsicum frutescens L.) NYOMAN AYU TRISNA ARI UTAMI; I NYOMAN WIJAYA; I KETUT SIADI; I DEWA NYOMAN NYANA; GEDE SUASTIKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.4, Oktober 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (80.711 KB)

Abstract

ABSTRACT Effect of Barier Colored Nets to Abundance of Aphis gossypii on Cayenne Pepper (Capsicum frutescens L.) Cayenne pepper (Capsicum frutescens L.) is a plant that has a high economic value and has a many of uses that as seasoning at household, as an ingredient in various food processing industries and the manufacture of pharmaceuticals. Currently chili productivity in Indonesia is still low therefore needs a national chili can not be optimally. One reason is the insect infestation of  A. gossypii are a double role as pests and disease vectors. The use of red and white netting barier around planting chili is one of the pest control management that is environmental friendly. The purpose of this study was to determine the role of red-and-white nets barier in protect the entry of A. gossypii in chilli planting area. There are three treatments were tested using a red netting, white netting and planting without the use of nets. The results showed that the use of red and white nets can reduce insect populations of A. gossypii on peppers planting area. Average of the highest populations of A. gossypii on treatment without a net, then the white netting treatment and lowest in the red, so that the use of red nets can be used to reduce the population of A. gossypii on chilli crop.   Keywords: Chilli pepper , A. gossypii, colored nets
Co-Authors ANAK AGUNG MADE ASTININGSIH GEDE SUASTIKA GEDE SUASTIKA GEDE SUASTIKA Gusti Ngurah Alit Susanta Wirya I Dewa Nyoman Nyana I GEDE PUTU WIRAWAN I Gusti Ngurah Bagus I GUSTI NGURAH BAGUS PRANATA PUTRA I GUSTI NGURAH RAKA I GUSTI NGURAH WISNU PURWADI I KADE DARMAWAN I MADE SUDANA I MADE SUDANA I NYOMAN RAGANATHA I NYOMAN WIJAYA I WAYAN SUKADA I.G.N. Bagus I.M.M. Adnyana I.N. Wijaya K.A. Yuliadhi KADEK DWI UTAMA Khamdan Khalimi NI KADEK AYU WIDAYANTHI NI KADEK DWIK PRADNYAWATI Ni Made Puspawati NI NENGAH DARMIATI NI NYOMAN DWI RESPITA NINGSIH NYOMAN AYU TRISNA ARI UTAMI ROBERTO BOBHOPE ARUAN SHAH KANIGARA ASADDIARI TRISNA AGUNG PHABIOLA WAYAN ADIARTAYASA