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Jurusan Agronomi dan Hortikultura, Gedung C Fakultas Pertanian, Universitas Lampung. Jln. Sumantri Brojonegoro No 1 Gedung Meneng, Bandar Lampung 35145, Indonesia
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INDONESIA
Jurnal Agrotropika
Published by Universitas Lampung
ISSN : 02167662     EISSN : 27457737     DOI : 10.23960
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Scientific article dealing with broad aspects of tropical agronomy including crop production, horticulture, plant pests and diseases, post-harvest, sustainable agriculture, soil science, climatology, ecology, biodiversity, and ethno-agronomy.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 252 Documents
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VIABILITAS BENIH KEDELAI (Glycine max [L.] Merril) SEJALAN DENGAN PENYIMPANAN ALAMIAH DAN PENGUSANGAN CEPAT DENGAN ETANOL Eko Pramono; M. Syamsoel Hadi; M. Kamal
JURNAL AGROTROPIKA Vol 19, No 1 (2020): Jurnal Agrotropika Vol 19 No 1, Mei 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.403 KB) | DOI: 10.23960/ja.v19i1.4329

Abstract

Storing seeds always causes deterioration, mainly due to the long storage time and rapid aging treatment using ethanol. This study aimed to compare the viability of soybean seeds due to the natural storage period and due to accelerated aging with ethanol. The lot of Argomulyo soybean seeds was divided into five subloties. Sublot-1 was the soybean seeds given a natural storage under temperature of ± 26 ºC for 12 months. Sublot-2 was the soybean seeds given a natural storage under temperature of ± 18 ºC for 12 months. Sublot-3 was the soybean seeds applicated with the treatments of the absorption period 0-12 hours to ethanol solution of 8 % (LPLE8). Sublot-4 was soybean seeds applicated with the treatments of the exposure periods 0-180 minutes to saturated ethanol 96% vapour (LDUJE). Sublot-5 was soybean seeds applicated with the treatments of imbibition periods 0-24 hours prior to be exposured on saturated 96% ethanol vapour for 40 minutes (LIPPC).  The main variable observed was the percentage of normal seedlings (PKN). The rate of decline in the viability of soybean seeds during storage of 0-12 months under the storage room temperature of 26 C or 18 C respectively a) was greater than that treated with ethanol-8% absorption period of 0-12 hours, and b) did not differ from those treated with 96% 0-180 minutes ethanol saturated vapor treatment period and treated with 0-24 hour imbibition period before exposure to 96% ethanol saturated vapor for 40 minutes. Keywords: Aging, ethanol, normal seedling, seed viability, storage
PENGARUH POLA CURAH HUJAN TERHADAP PRODUKSI KOPI: STUDI DI SATU PERKEBUNAN DI BANYUWANGI Rudy Erwiyono; Rully Yuniarta Yacob; Usmadi Usmadi
JURNAL AGROTROPIKA Vol 14, No 1 (2009): Jurnal Agrotropika V14 No 1 2009
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (138.487 KB) | DOI: 10.23960/ja.v14i1.4227

Abstract

Study on the effect of rainfall pattern on the coffee yield has been carried out at one of government-owned estate companies in Banyuwangi district, East Java. The study was conducted by multiple linier regression analysis approach of rainfall elements on the coffee production. The results showed the following figures. Rainfall pattern significantly affected the production of the coffee plants. In general, it was shown that the effect of rainfall pattern on the coffee production with statistical analysis approach of multiple linier regression of the study showed that the following rainfall elements, i.e. wet months, rainfall of the previous year, and dry months of the previous year, would always appear as the dominant factors determining the production of the coffee plants, in the blocks of plants (each block of plants has its own or the same planting year) as well as in afdeling (the blocks as a whole or a unite), in which the study was carried out (as a note, a plantation or estate company usually has some afdelings). Each element of rainfall tended to have similar direction or regression coefficient vector in every assessment, but different magnitude supposed to be the effect of local conditions of the land. The equations performed from the multiple linier regression analysis have precision to predict ranging from 86-91%.Keywords: Rainfall pattern, wet months, dry months, coffee production.
PENGARUH MEDIA DASAR DAN BENZILADENIN (BA) TERHADAP PEMBESARAN SEEDLING ANGGREK Dendrobium IN VITRO Adryade Reshi Gusta; Dwi Hapsoro; Nyimas Sa’diyah; Yusnita Yusnita
JURNAL AGROTROPIKA Vol 16, No 2 (2011): Agrotropika Vol.16 No.2 2011
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.795 KB) | DOI: 10.23960/ja.v16i2.4268

Abstract

Orchid such as Dendrobium is more commonly propagated in vitro by using tis-sue culture techniques. In tissue culture, the type and composition of media and plant growth regulator was very crucial. The research was aimed to study the effect of media and plant growth regulator on growth of Dendrobium seedlings in vitro and was conducted in Plant Tissue Culture Laboratory, Faculty of Agriculture, University of Lampung, from April 2010 until October 2010. The experiment was carried out in a completely randomized design with three replicates. Treatments were arranged as 2 x 3 factorial design with media (½ MS and modified ½ MS with high P and low N) as the first factor and three concentrations of benzyl-adenine (0, 5, and 10 mg/l) as the second factor. Each experimental unit consisted of 3 culture bottles each of which containing 2 five-month-old seedlings. The result showed that both media was not significantly affected the growth of Dendrobium seedlings. Whereas, the addition of benzyl-adenine (BA) at 5 mg/l and 10 mg/l in both of media was able to increase shoot number from 2.8 to 5.2-5.4 and increase leave number from 9.2 to 18.0-18.2. Overall, the application of benzyl-adenine decreased shoot height (from 3.7 to 3.0-2.7 cm), root number (from 2.7 to 1.3-0.8), and root length (from 1.6 to 1.0-0.8 cm). Keyword : Dendrobium in vitro, seedlings growth.
PENGARUH PERLAKUAN BENIH DENGAN AGENS HAYATI DAN PEMUPUKAN TERHADAP PERTUMBUHAN TANAMAN, PRODUKSI DAN MUTU BENIH PADI DI LAPANG Agustiansyah Agustiansyah; Satriyas Ilyas; Sudarsono Sudarsono; Muhammad Machmud
JURNAL AGROTROPIKA Vol 17, No 2 (2012): Agrotropika Vol.17 No.2 2012
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (426.57 KB) | DOI: 10.23960/ja.v17i2.4284

Abstract

Biological agents is believed to function as fitostimulators, biofertilizers, and biopesticides. These capabilities have been widely reported by researchers on various crops. Application these agents to rice plants had not been widely reported, particu-larly in Indonesia. The purpose of this study was to determine the effect of seed treatment with rhizobacteria and use of fertilizer P on plant growth, seed quality in the field. The study experiments that were conducted in Research Station of Indonesian Rice Research Institue, Sukamandi, West Java. The experimental results show that P fertilizer application at the rate of 50 kg ha-1 produced plant height, number of tillers, number of pithy grains, and total number of grains per panicle better than that 100 kg ha-1.. Seed treatments by immersion in a mixture of P. diminuta A6 + B. subtilis 5/B) with or without matriconditioning increased plant height and num-ber of tillers. Seed treatment with matriconditioning + biological agents increased the number of grains and total number of grains. All the seed treatments and P fertilizer applications no significantly affected the physi-ological quality of seed yield, but reduced population of Xanthomonas oryzae pv.oryzae (Xoo) in the seeds. Keywords: bactericide, biofertilizer, biopesticide, seed patologis quality
RESPONS ENAM VARIETAS CABAI (Capsicum annuum) TERHADAP HASIL, VIABILITAS, DAN VIGOR BENIH Yenni Kusandriani; Uum Sumpena; Luthfi Luthfi
JURNAL AGROTROPIKA Vol 18, No 2 (2013): Agrotropika Vol.18 No.2 2013
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (453.021 KB) | DOI: 10.23960/ja.v18i2.4300

Abstract

An experiment was carried out at the experimental Station and Seed technology laboratory of Central Research Institute for Vegetable Lembang, from June until November 2010. Randomized Block Design was used to study six varieties of pepper. The six varieties of pepper were: YK 1, YK 2, Tanjung 1, Tanjung 2, Rk1 and Rk4. The results showed that there was no significant effect among varieties on yield, seed viability and vigor, except on seedling vigor classification test. The Tanjung 2 was the best variety for seed weight per plot and normally for seedling vigor classification test.  Key words: pepper, variety, seed, yield, viability, vigor.
PENGARUH TANAMAN INANG DAN MEDIA TANAM PADA PRODUKSI FUNGI MIKORIZA ARBUSKULAR Maria Viva Rini; Vida Rozalinda
JURNAL AGROTROPIKA Vol 15, No 1 (2010): Agrotropika Vol.15 No.1 2010
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (374.714 KB) | DOI: 10.23960/ja.v15i1.4246

Abstract

Host plant and medium are factors that affecting Abusrcular Mycorrhiza Fungi (AMF) production. Therefore, for maximum FMA inoculums production, four different host (mays, sorghum, Centrosema pubescens [CP], and Calopogonium mucunoides [CM]) and two medium (zeolit P-1 and zeolit P-3) were tested. The results showed that host from graminae (mays and sorghum) are better for AMF inoculums production as they gived higher root infection and spore production compared to legume (CP and CM). No significant effect was detected between P-1 and P-3, hence both medium can be used for AMF production. Furthermore, data obtained also showed that the effect of host on AMF production was not affected by medium used. Key words: Arbuscular Mycorrhiza Fungi, inoculums production, host, medium
TANGGAPAN VARIETAS JAGUNG HIBRIDA DAN KOMPOSIT PADA PEMBERIAN PUPUK TUNGGAL N, P, K DAN PUPUK KANDANG DI LAHAN KERING M. P. Sirappa; Maryam Nurdin
JURNAL AGROTROPIKA Vol 15, No 2 (2010): Agrotropika Vol.15 No.2 2010
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.964 KB) | DOI: 10.23960/ja.v15i2.4248

Abstract

Experiments conducted in the village Waihatu, Part West Ceram district in 2009. The aim of research was to determine the response of two varieties of maize hybrids and one maize composites on a single fertilizer N, P, K and chicken manure on dry land. The experiment is based on randomized block design with three replications. Experimental plots measuring 15 mx 16 m, spacing 75 cm x 40 cm, 2 plants /hole. Varieties was studied are Bima-3 Bantimurung and Bisi-2 (maize hybrid) and Srikandi Kuning-1 (maize composite). Dosage of fertilizer used is 300 kg urea, 200 kg of SP-36, 50 kg of KCl, and 2 tons of chicken manure/ha. The results showed that Bima-3 Bantimurung variety was give average growth and yields is higher than maize of Srikandi Kuning-1 and Bisi-2. The average yield of Bima-3 Bantimurung, Bisi 2, and Srikandi Kuning-1 on providing a single fertilizer N, P, K and chicken manure are 8.71 t/ha,      6.42 t/ha, and 4.50 t/ha, respectively. Varieties Bima-3 Bantimurung and Srikandi Kuning-1 have a pretty good prospect to be developed on dry land because bisade high productivity and tolerance to environmental stress (drought), also Bima-3 Bantimurung variety have high biomass and leaf remained green until the harvest, while Srikandi Kuning-1 is rich protein and essential amino acids. Key-words: response, single fertilizer N, P, K, chicken manure, dry land.
EFEKTIVITAS FUNGI MIKORIZA ARBUSKULAR DENGAN PROVENAN JARAK PAGAR PADA CEKAMAN KEKERINGAN Lapanjang, Iskandar M.; Purwoko, Bambang S.; Hariyadi, Hariyadi; Wilarso, Sri; Melati, Maya
JURNAL AGROTROPIKA Vol 16, No 1 (2011): Agrotropika Vol.16 No.1 2011
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (348.083 KB)

Abstract

The study was conducted to investigate the effectiveness of Arbuscular Mycorrhizae Fungi (AMF) to make a symbiosis with physic nuts under drought stress condition. The experiment was carried out in plastic house in Kota Palu, Central Sulawesi, from October 2008 to January 2009. The experiment used completely randomized block design with 3 factors and 3 replications. The first factor was AMF type i.e. without AMF, AMF Glomus sp-1p, AMF Acaulospora sp-1p, and mixture of Glomus sp-1p and Acaulospora sp-1p. The second factor was the provenances of physic nut i.e. Palu, NTB, IP-1A, and IP-1P. The third factor was soil water content i.e. 80 and 40% of field capacity. The results showed that the application of AMF resulted in better growth of all provenances especially ecotype IP-1P, which was sensitive to drought, compared to control (without AMF). At 40% field capacity, mixture of Glomus sp-1p and Acaulospora sp-1p. was more effective compared to single AMF in improving plant growth. The highest AMF infection was found in ecotype Palu inoculated with mixture of Glomus sp-1p and Acaulospora sp-1p. Key words: infection level, Glomus, Acaulospora
PENGARUH KONSENTRASI DAN CARA APLIKASI IBA (INDOLE BUTIRIC ACID) TERHADAP PERTUMBUHAN BIBIT NANAS (ANANAS COMOSUS [L.] MERR.) ASAL TUNAS MAHKOTA Rugayah, Rugayah; Anggalia, Itha; Ginting, Yohannes Cahya
JURNAL AGROTROPIKA Vol 17, No 1 (2012): Agrotropika Vol.17 No.1 2012
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (558.281 KB)

Abstract

The research was conducted to determine the effects of IBA concentration on the growth of pineapple seedlings sprout from crown cutting on each applications method. The treatment was arranged in factorial (5x2) in ran-domized block design with three replications. The first factor is the concentration of IBA (0 ppm,100 ppm,200 ppm,400 ppm and 600 ppm). The second factor is the application method of IBA (spraying method and basting method). The results showed that the concentration of 400 ppm IBA effect on leaf width, plant wet weight, and number of primary roots. Treatment of IBA application by basting method of the primary root number more than spraying method. The interaction between concentration and applications method of IBA had no effect on all observed variabels. This study were obtained that the concentration of IBA 400 ppm gives the best growth, Treatment of IBA application by basting method to increase the number of primary roots, but the influence concentration of IBA on the growth of seedlings of pineapple seedling from crown cutting is not determined by applications method of IBA. Key words: Pineapple Seedling, Crown Cutting, IBA
PENAMPILAN KARAKTER FENOTIPIK 15 GALUR INBRED JAGUNG SELFING KE-14 (S-14) RAKITAN POLINELA Kartahadimaja, Jaenudin; Syuriani, Eka Erlinda
JURNAL AGROTROPIKA Vol 18, No 2 (2013): Agrotropika Vol.18 No.2 2013
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.139 KB)

Abstract

To produce F1 hybrid seed corn, it need seed parent strains or known as a superior inbred strains. The purpose of the study was to determine the character of phenotypic and yield potential of 15 maize inbred lines of 14th selfing generations (S - 14) as a prospective parent of hybrid corn assemblied by Polinela. The study was conducted with Randomized Block Design ( RCBD ), each treatment was repeated three times. Data were analyzed by analysis of variance. If there is a difference between the treatment then it continued with Test Honestly Significant Difference ( HSD ) at the 5% level. The results showed that phenotypic characters and the potential results of 15 strains of inbred corn has diverse variability .  Key words: Corn, hybrid, inbred strains, phenotypic

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