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Rusdi Evizal
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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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INDUKSI KALUS PADA TANAMAN ANGGREK VANDA TRICOLOR LINDL. VAR. SUAVIS, UPAYA PENYEDIAAN TARGET TRANSFORMASI MELALUI AGROBACTERIUM TUMEFACIENS Dwiyani, Rindang
JURNAL AGROTROPIKA Vol 18, No 2 (2013): Agrotropika Vol.18 No.2 2013
Publisher : JURNAL AGROTROPIKA

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Abstract

The aim of the current research was to find out a method in producing calli of Vanda tricolor orchid for target on Agrobacterium-mediated transformation.  Six to seven months (after sowing) of orchid seedlings were used as source of planting material.  Seedlings were sliced into small parts i.e. leaves, shoots and roots.  Roots were discharged, while leaves and shoots were used as explants. Explants then were planted on the Murashige and Skoog Medium added with 2ppm 2,4-D for calli induction.  Two kinds of sugar concentration i.e. 0% sucrose and 3% sucrose were used as treatment and each was added on those calli induction medium.  The results showed that the appropriate method for producing calli on V. tricolor orchid was using shoots as source of explants and planting them on Murashige and Skoog Medium added with 2ppm 2,4-D and with no sucrose.  Keywords: calli, V. tricolor orchid, shoots, leaves, sucrose
PERTUMBUHAN DAN PERBANYAKAN TUNAS MIKRO SINGKONG (MANIHOT ESCULENTA CRANTZ.) SECARA IN VITRO PADA BERBAGAI KONSENTRASI BENZIL ADENIN. Ardian, Ardian; Yuliadi, Erwin
JURNAL AGROTROPIKA Vol 14, No 1 (2009): Jurnal Agrotropika V14 No 1 2009
Publisher : JURNAL AGROTROPIKA

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Abstract

Propagation of cassava through in vitro culture is required by farmers and agro industries to fulfill the need of the best and the newest clone as soon as after that clone is released by government. The objective of this research is to know the effect of the application of four concentration of benzyl adenine on the growth and proliferation of cassava shoot in vitro. Explants used were one-node cuttings of cassava about 1 cm length, grown in polybags. This research was arranged in completely randomized design with the treatments consisting of four concentrations of benzyl adenine: 0.5, 1, 2 and 4 mg/l added of basic media of Murashige and Skoog. Each treatment was replicated 4 times with 5 explants in each experimet al unit. The best growth and micro-shoot propagation of cassava in vitro was indicated by treatment of 0.5 mg/l benzyl adenine.Key words: cassava, benzyl adenin, in vitro, micro-shoot
UJI KETAHANAN TERHADAP COWPEA MILD MOTTLE VIRUS PADA SEMBILAN BELAS POPULASI F1 TANAMAN KEDELAI (GLYCINE MAX [L.] MERRIL) HASIL PERSILANGAN DIALEL Barmawi, Maimun; Utomo, Setyo Dwi; Akin, Hasriadi Mat; Ramli, Sulastri
JURNAL AGROTROPIKA Vol 14, No 2 (2009): Agrotropika Vol.14 No.2 2009
Publisher : JURNAL AGROTROPIKA

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Abstract

The objective of this study was to evaluate the resistance to cowpea mild motlle virus (CPMMV) of 19 F1 population of soybean showing good agronomic characters. The F1 population were generated by complete diallel crosses involving a resistant parent (Mlg 2521), a moderately resistant parent (B 3570), and three susceptible parents (Orba, Wilis, and GKUL-1). The experiment was arranged in a completely randomized block design consisted of two replications. The results indicated that F1 population B 3570 x Mlg 2521 was resistant to CPMMV and superior in seed weight per plant, number of branches, plant height, total number of pods, total number of seeds, and the number of healthy seeds. F1 population Wilis x B 3570 and B 3570 x Wilis were moderately resistant and less superior in agronomic characters than B 3570 x Mlg 2521.Key words: CPMMV, diallel, Glycine max,viral resistance
INTRODUKSI FORMULA FUNGI MIKORIZA ARBUSKULA DARI RIZOSFER PISANG PADA BIBIT PISANG UNTUK PENGENDALIAN PENYAKIT DARAH BAKTERI (RALSTONIA SOLANACEARUM PHYLOTYPE IV) Yefriwati, Yefriwati; Habazar, Trimurti; Husin, Eti Farda
JURNAL AGROTROPIKA Vol 16, No 1 (2011): Agrotropika Vol.16 No.1 2011
Publisher : JURNAL AGROTROPIKA

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Abstract

Blood disease bacteria (BDB) caused by Ralstonia solanacearum Phylotype IV (Pseudomonas solanacearum) is one of the most important diseases on banana. Using biological agents such as arbuscular mycorrhizal fungi (AMF) to control BDB is still not maximal result, based on that need to search a potensial indigeneous AMF specific location. The aim of this experiment were to study the stability of formulated AMF indigenous to control BDB and to increase growth of banana seedlings. This research was arranged by Factorial in Randomized Complete Design (RCD) on green house experiment with 5 replicate. The treatment consist of 2 factors : 1) enrichment of carrier of AMF, sand with rock phosphate (0, 10, 20 and 40 %). 2) incubation periode (0, 1 and 2 months). Banana seedlings were intruduced with formulated AMF at planting date. Two month old banana seedlings were inoculated with Ralstonia solanacearum Phylotype IV. The parameter were observed include: incubation periode, disease insidence, disease severity, discoloration of pseudostem, population density of Ralstonia solanacearum Phylotype IV, colonisation degree of AMF on banana root, spore density on rhizosphere, growth of banana seedlings.The results showed that all formulated AMF introduced on banana seedlings reduced BDB development and increase banana growth compare with control plants, especially the formulated AMF enriched with 30 % rock phosphate.Key Words: arbuscular mycorrhizal fungi, blood disease bacteria, biological controll agents, banana
EFIKASI HERBISIDA PRATUMBUH METIL METSULFURON TUNGGAL DAN KOMBINASINYA DENGAN 2,4-D, AMETRIN, ATAU DIURON TERHADAP GULMA PADA PERTANAMAN TEBU (Saccharum officinarum L.) LAHAN KERING Nico Alfredo; Nanik Sriyani; Dad R.J. Sembodo
JURNAL AGROTROPIKA Vol 17, No 1 (2012): Agrotropika Vol.17 No.1 2012
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.521 KB) | DOI: 10.23960/ja.v17i1.4278

Abstract

Metsulfuron-methyl is a herbicide that never been used as a preemergence herbicide for sugarcane. The objectives of this research was to know the efficacy of metsulfuron metyl and its combinations with 2,4-D, ametryn, or diuron in controlling weeds of sugarcane plantation.The experiment was arranged in Completely Randomized Block Design (CRBD) with twelve treatments and three replications. The treatments are metsulfu-ron-methyl at 4 g ha-1, 8 g ha-1, 12 g ha-1 and 16 g ha-1, combinations of 4 g ha-1 metsulfuron-methyl with 0,865 kg ha-1 2.4-D; 0,75 kg ha-1 ametryn; or 1,6 kg ha-1 diuron; 2.4-D at 1,3 kg ha-1; ametryn at 1 kg ha-1; diuron at 2 kg ha-1; manual treatment and control plot. The comparisson of mean were tested by Honestly Significant Difference (HSD) test at 5% level. Results showed that metsulfuron-methyl (at 12-16 g ha-1) could supress total weeds biomass until 8 weeks after application (WAA). Combinations between metsulfuron-methyl with 2,4-D, ametryn or diuron showed better efficacy than single metsulfuron-methyl application. All herbicides did not cause phytotoxicity symtoms to sugarcane. Key words: 2,4-D, ametryn, diuron, combination, efficacy, metsulfuron-methyl, weed, sugarcane.
THE RATIO OF N/K AND GRAIN YIELD OF LOWLAND RICE (Oryza sativa L.) AS AFFECTED BY DIFFERENT LEVELS OF NITROGEN APPLICATION AND IRRIGATION METHODS Muhammad Kamal; M. S. Hadi; O. Ekasari; E. Setiawan
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 (481.306 KB) | DOI: 10.23960/ja.v18i2.4294

Abstract

Lowland rice (Oryza sativa L.) still significantly contributes to Indonesian food security. Water shortage and the availability of N fertilizers frequently become major constraints in rice production, so efficient use of N fertilizers and water-saving irrigation are more preferable. The objective of the experiment was to evaluate the ratio of N/K and seed yield of lowland rice under different levels of nitrogen application and irrigation methods.  The experiment was conducted in Gadingrejo-Pringsewu in 2011. The treatments were arranged in factorials with Split-Plot in Randomized Complete Block Design with three replications.  Irrigation methods as main plots consisted of two levels, namely, conventional irrigation method (continous standing-water with 5 cm in depth) and irrigation method without flooding (continous saturated soil). Sub-plot was N fertilization consisting of four levels, that is, 150, 200, 250 and 300 kg Urea/ha.  Lowland rice cv. Ciherang was planted in experimental plots of 4x5 m in size with row spacing of 25x25 cm. The result of the experiment indicated the ratio of N/K in rice leaves at 40 and 60 DAP, and at harvest time was not significantly affected by irrigation methods and N fertilization levels. The performance of yield components and rice production in conventional irrigation method and irrigation without flooding did not a significant diference although irrigation without flooding consumed less water. This means that irrigation without flooding could increase water use efficiency in lowland rice production.  Key words: grain yield, lowland rice, ratio of N/K,  yield components
KAJIAN PERTUNASAN EMPAT KULTIVAR MANGGA (MANGIFERA INDICA L.) YANG TELAH MENGALAMI PEMANGKASAN AWAL DAN PEMUPUKAN KNO3 Rugayah, Rugayah
JURNAL AGROTROPIKA Vol 14, No 2 (2009): Agrotropika Vol.14 No.2 2009
Publisher : JURNAL AGROTROPIKA

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Abstract

The research was conducted to study shoot-growth pattern on four cultivars of mango ( Arumanis, Gedong, Indramayu, Manalagi) that was early pruning and application of KNO3.The treatment was arranged factorially (2x5) in a randomized block design with four replication. The first factor were posision of pruning: on the first flush (P1) and the second flush (P2) and the second factors were concentration of KNO3 (0, 2, 4, 6, 8) g/l. Observations were made in two periods (flush I and flush II). The observation on the first period has been written in Satek-II Proceeding?s, 2008 but the results in the second period showed that:. 1) Pruning the second flush position further increase (the number of leaves per shoot, shoot length, and the total number of leaves per plant) on cv Arumanis, increasing the total number of leaves per plant on Manalagi cultivars, and increase the number of leaves per shoot at Indramayu cultivars than in the first flush position. 2) The application of KNO 3 on Manalagi cultivars reduced the total number of leaves, but the cultivar of Indramayu with concentration of 2 g / l to increase the length of shoots, and on two other cultivars (Arumanis and Gedong) had no effect. 3) There is no interaction between pruning and application of KNO 3 on all cultivars tested.Key words: Cultivars of mango: Manalagi, Gedong, Arumanis, Indramayu, Pruning, KNO3, Flush
PENDUGAAN KOEFISIEN TANAMAN UNTUK MENGHITUNG KEBUTUHAN AIR DAN MENGATUR JADUAL TANAM KEDELAI DI LAHAN KERING LAMPUNG Tumiar K K. Manik; R.A. Bustomi Rosadi; Agus Karyanto; Anggun Ika Pratya
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 (250.465 KB) | DOI: 10.23960/ja.v15i2.4257

Abstract

One strategic agriculture commodity for Indonesia is soybean. Therefore, Indonesia should make an effort to be self sufficient in soybean production. For that purpose the planting area should be extended to dry land area. Crops water need is one important factor that needs to be considered in cultivating crops over dry land area. Calculating crops water need is necessary for irrigation schedule and plating date. Crops water need is calculated with measuring the crops evapotranspiration Crops evapotranspiration is calculated using gravimetric method or with lysimeter. Reference evapotranspiration is calculated in some different methods such as gravimetric method, using evaporimeter pan or using estimation models. Crops coeficient is calculated with dividing crops evapotranspiration with reference evapotranspiration. The purpose of this research is to calculate soybean crops coefficient in order to recommend soybean planting date in Lampung dry land. Crops evapotranspiration was calculated in gravimetric methods while reference evapotranspiration was calculated with gravimetric method, evaporimeter pan and Penman-Monteith model. The results showed that maximum crop evapotranspiration was 20 mm/week or about 3 mm/day while maximum reference evapotranspiration was 24 mm/week. Soybean crop coefficients were 0.36 in cotyledon phase (VE) to V1 phase; 0.42 on V2 phase; 0.76 on V3 phase; 0.68 on R1 phase; 1.10 on phase R3; 0.78 on R5 phase and 0.21 on R8 phase. Monts which are suitable for planting soybean are December to May. Therefore, soybean could be planted in dry land without irrigation facilities one time after paddy (December – February) or twice as long as at the first planting date the area is in good drainage condition. Key words: crops evapotranspiraton, crops coefficients, crops water need, reference evapo-transpiration, planting date
PENDUGAAN PARAMETER GENETIK HASIL DAN KOMPONEN HASIL GALUR - GALUR PADI LOKAL ASAL BANTEN Sahiral Yakub; Kartina A.M. Kartina; Sulastri Isminingsih; M. L. Suroso
JURNAL AGROTROPIKA Vol 17, No 1 (2012): Agrotropika Vol.17 No.1 2012
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.383 KB) | DOI: 10.23960/ja.v17i1.4273

Abstract

The experiment was conducted to examine genetic parameter of yield and yield components of local rice lines. The experiment was conducted at field research Singamerta BPTP Banten from July up to January 2009.The treatment was arranged in randomized complete block design with three replications and 24 local rice lines with 3 check varieties (Hawara, Sarinah, and Ciherang). The result showed that observed characters had high and moderate heritabilities and highly expected selection advanced at 10% (1.76) selection intensi-ties. The selection would be applied in early generation, respectively.  Key words: genetic parameters, local rice lines, Banten
UJI DAYA HASIL SEMBILAN GALUR HARAPAN KACANG MERAH DI JAWA BARAT Uum Sumpena; Yenni Kusandriani; Luthfi Luthfi
JURNAL AGROTROPIKA Vol 18, No 1 (2013): Agrotropika Vol.18 No.1 2013
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.407 KB) | DOI: 10.23960/ja.v18i1.4289

Abstract

Red-bean (Vigna angularia Wild) is very important in human life as source of vegetable protein and can be consumed in various processed products. In Indonesia, there are a lot of industrial activities using red-bean as main raw material. Unfortunately, red-bean is still imported to meet this demand. In red-bean farming system, variety is one of key factor to achieve high yield. Therefore, a research was conducted in Lembang Bandung and Cikajang Garut districts, West Java from May to December 2012. The objective was to gain potential line of red-bean with high yield. The experiment was arranged in randomized complete block design with 10 genotypes as treatments and three replications. Results showed that LV 5563 lines reached highest yield of 1,88 – 2,00 t ha-1. On the other hand, lowest yield was reached by LV- 5831 lines with yield of 0.98-1.30 t ha-1, followed by LV 0066-LV6168  lines with 0.37-1.47 t ha-1 and Local Garut with 0.71-1.40 t ha-1.  Key words: Vigna angularia, potential lines, yield

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