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Agrohorti Bulletin (e-Journal)

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Published by Institut Pertanian Bogor

ISSN : 23373407 EISSN : 26143194 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Buletin Agrohorti merupakan jurnal on-line yang menyajikan artikel hasil penelitian, analisis kebijakan dan review yang berhubungan dengan budidaya tanaman dalam arti luas.

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Articles 20 Documents

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Search results for , issue "Vol. 1 No. 1 (2013): Januari 2013" : 20 Documents clear

Pertumbuhan dan Perkembangan Cabai Keriting (Capsicum annuum L.) secara In Vitro pada beberapa Konsentrasi BAP dan IAA Verdy Soelaiman; Andri Ernawati
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

Curly red pepper (Capsicum annuumL.) is one of the crops that are important and widely cultivated in Indonesia. The purpose of this research was to determine the effect of the use of plant growth regulators BAP and IAA in various doses on the growth and development of curly red peppers in vitro. This research was conducted on March until October 2011 in Tissue Culture Laboratory Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University. This research using Randomized Complete Design with combination of plant growth reguators as the factor. The results showed that combinations of growth regulators significantly influenced root induction, high growth, number of leaves, callus and shoot multiplication. Plant growth regulator combination of 0 mg L-1 BAP + 1 mg L-1 IAA was very good treatment in inducing roots. Combination of 2 mg L-1 BAP + 0.2 mg L-1 IAA effect high growth and shoot induction. Combination of 1 mg L-1 BAP + 0 mgL-1 IAA was the best treatment in increasing number of leaves. While for callus and multiplication, the best treatment was combination of 4 mg L-1 BAP + 0 mg L-1 IAA.Keyword: induction, growth regulators, pepper plant

Pengujian Vigor Daya Simpan dan Vigor terhadap Kekeringan pada Benih Padi Gogo dan Padi Sawah Feni Shintarika; Faiza Chairani Suwarno; . Suwarno
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

The objectives of the study were to evaluate seed storability and vigor to drought of rice genotypes from different ecologies and correlation among the characters. The experiments were conducted in the Seed Science and Technology Laboratory, Bogor Agricultural University from April to August 2011. Duration of rapid aging using ethanol vapour for testing seed storability were 87.6 and 155.4 minutes for upland and lowland rice seeds respectively. The rolled paper methods with Polyethylen Glycol (PEG 6000) at -2.0 bar was used for testing seed vigor to drought. Rice seed of 40 genotype consisting of 20 upland and 20 lowland were evaluated using Randomized Block Design with three replications. There were no correlation between seed storability and vigor to drought on all genotypes, and no similiarity of those characters on the best five genotypes. Genotypes with the highest storability were B12154D-MR-22-8 for upland rice and Aek Sibundong for lowland. Genotypes with the highest vigor to drought were B12165D-MR-8-1 and B12161D-MR-1-4-2 for upland rice, B12672-MR-19-2-PN-1-3 and Aek Sibundong for lowland.Keywords : drought stress, Rapid aging

Pematahan Dormansi Benih Kelapa Sawit (Elaeis guineensisJacq.) dengan Perendaman dalam Air Panas dan Variasi Konsentrasi Ethephon Belladina Farhana; Satriyas Ilyas; Lalu Firman Budiman
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

This research was held from April to July 2012, located in the seed processing unit of PT Astra Agro Lestari Tbk, Central Borneo. The study consisted of three experiments, the first experiment to determine the effect of water temperature and immersion intensity of seed germination. The first experiment used completely randomized design (CRD) factorial with two factors, water temperature: 27, 60, 70, 80, 90oC and immersion intensity: 1x24, 2x24, 3x24 hours. The second experiment used a single factor of CRD namely ethephon concentration: 0, 0.4, 0.8, 1.2, 1.6%. The third experiment was a continuation from the second experiment with the adding heat drying treatment during a week. The result showed that 3x24 hours soaking treatment in 80oC hot water increased the germination, soaking in ethephon 0.4% inhibited radicle growth resulted abnormal seedlings. Soaking seed in 80oC hot water for 3x24 hours and followed by ethephon and then heat drying treatment for a week increased germination (52.0% maximum growth potential) but still ineffective to break seed dormancy.Key Words: breaking dormancy, ethephon, hot water treatment, oil palm seeds

Perlakuan Coating dengan menggunakan Isolat Methylobacterium spp. dan Tepung Curcuma untuk Meningkatkan Daya Simpan Benih Padi Hibrida Eny Widajati; Selly Salma; Yuyuk Agung Lastiandika
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

This research aims to study the effect of coating on seed storability in three varieties of hybrid rice. The research conducted at Centre for Soil Research, East West Corporation in Purwakarta and Laboratory of Seed Science of Department Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University.This experiment arranged in nested plot design in which formulation of seed coating (uncoated seed, TDJ-7, TD-TPB3, TD-TM1 and Curcuma flour) was nested in six times period of storage. The result showed that coated and uncoated seed still had high viability after storage 15 weeks for 3 varieties of hybrid rice seeds (DG-1 SHS, SL-8 SHS and INTNANI-2). Methylobacteriumspp. strain TD-TPB3 and TD-TM1 showed to be the best coated for hybrid rice seeds.Keyword :Curcuma, Methylobacteriumspp., storage, viability.

Pertumbuhan Tunas Sansevieria trifaciata Prain ‘Laurentii’ pada Beberapa Komposisi Media Tanam dan Konsentrasi GA3 Tatiek Kartika Suharsi; Namira Andiani
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

The objectives of this research was to know the effect of growing media composition and concentration level of GA3, on growth of Sansevieria trifaciata Prain ‘Laurentii’ shoots. The research was conducted at Leuwikopo Experiment Field, IPB, Darmaga from March until July 2011. The research used Randomized Complete Block Design (RCBD) with two factors and three replications, Sansevieria trifaciata Prain ‘Laurentii’ variegata leafs used in this research. The first factor was growing medium composition, they were charcoal husk:soil:compos (1:2:1); pasir malang:soil:compos (2:2:1); cocopeat:soil:compos (3:2:1). The second factor was concentration of GA3 treatment consist of three level, 0 ppm; 100 ppm; 500 ppm. Charcoal husk and pasir malang gave good effect for growth of young shoots. Concentration of GA3 until 500 ppm had no significant effect on young shoot growth but it had significant effect on roots growth. The best interaction treatment effect on young shoots growth was charcoal husk medium and 500 ppm concentration of GA3.Keywords: charcoal husk, cocopeat, leaf cutting, pasir malang

Optimasi Dosis Pupuk Anorganik dan Pupuk Kandang Ayam pada Budidaya Tomat Hibrida (Lycopersicon esculentum Mill. L.) Haveel Luthfyrakhman; Anas D. Susila
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

The objective of this research was study the effect of fertilizer and manure on growth and productivity of hybrid tomato(Lycopersicon esculentum Mill. L). This research conduced at Pasir Sarongge experimental field University Farm, Bogor Agricultural University, Cipanas, from February to July 2011. The experimental design used was Completely Randomized Block Design, with two factors and three replications. The first factor was manure dosages which were 0, 10, 20, and 30 ton ha-1. The second factor was fertilizer dosages which were 0%, 75%, and 150% of recommended dosage. Recommended dosage use was 100 kg ha-1 N, 100 kg ha-1 P2O5, and 50 kg ha-1 K2O, from Ministry of Agriculture. Plant height showed quadratic response to manure at 2 and 4 week after transplanted (WAT), then linier at 6 WAT. To the fertilizer, plant height showed no response at 2 WAT and has not shown linier response at 4 and 6 WAT. Interaction between manure and fertilizer was significant at 8 WAT. Manure gave linier effect to number of leaves at 2, 4, and 8 WAT but not significant at 6 WAT. Fertilizer gave no significant effect to number of leaves. Manure gave quadratic effect where as fertilizer gave linier effect to fruit weight per plot, fruit weight per hectare estimated, and relative yield. Optimum manure dose obtained from this research was 24.375 ton ha-1. Maximum fruit weight per plot was 17.41 kg. Estimated maximum fruit weight per hectare was 22.79 ton ha-1. Manure gave linier effect to fruit weight per plot of grade A and B. Fruit weight per plot of grade C, fruit diameter, and average fruit weight were not affected by manure or fertilizer given.Keywords : tomatoes, fertilizer, chicken manure, Lycopersicon esculentum

Peningkatan Produktivitas dan Efisiensi Konsumsi Air Tanaman Bayam (Amaranthus tricolorL.) pada Teknik Hidroponik melalui Pengaturan Populasi Tanaman Ade Wachjar; Rizkiana Anggayuhlin
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

The purpose of the research was to study the effect of plant population on productivity and water consumption of amaranth in hydroponic technique. Research was conducted in Parung Farm, Bogor, from April to May 2011. The research used Nutrient Film Technique (NFT) hydroponic system that modificated with gravel as its planting medium. The research was arranged in Randomized Complete Block Design with one factor, i.e. , 1, 2, 3, or 4 seedling numbers per hole. The research was divided into two experiment. The first was experiment to study the effect of plant population on plant productivity, and the second was experiment to study the effect of plant population on water consumption of plant. The result showed that plant with one seedling in the planting hole gave the best response on growth of amaranth (plant height, leaves numbers), but for plant productivity, the best result was obtained from plant with three seedlings in the planting hole. Water consumption was highest in plants with one seed per planting hole. Apparently, the more the population, the less consumption of water is needed. This is due to poor root conditions in densely populated. Plant roots will adversely affect the absorption of water.Keywords : gravel, hydroponic kit, seedling numbers, the planting hole

Perubahan Klorofil, Luas Daun Spesifik, dan Efisiensi Penggunaan Cahaya Ubi Kayu pada Sistem Tumpang Sari dengan Jagung . Suwarto
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

This study aims to determine changes in chlorophyll content, specific leaf area (SLA), and light use efficiency (LUE) as a mechanism of physiological and morphological adaptation of cassava intercropped with maize. Cassava variety of Adira 1 has been planted in intercropping with maize varieties of Arjuna, Pioner 4, and Cargill 9 (with a population of 32,000; 48,000; 64,000, and 8,0000 plants ha-1); cassava is planted between rows of maize with a distance of 1 m x 1 m (with a population of 10 000 plants ha-1). As a physiological adaptation mechanism, cassava which is planted intercropping increase light capture for photosynthesis by increasing the content of chlorophyll a and chlorophyll b as well as morphologically with increasing SLA. The average chlorophyll a and b of cassava in intercropping were 2.758 and 1.125 mg g-1, whereas in monoculture were 2.032 and 0.750 mg g-1 or increased respectively 35.73% and 50.00%. SLA of cassava increased from 309.5 cm2g-1 in the monoculture became 406.3 cm2g-1in intercropping (increased by 31.27%). The LUE of cassava at the beginning of growth during intercropping with maize is lower than the monoculture, but after maize is harvestedthe LUE increased so that the average LUE of cassava is the same during the whole periode of growth that is 0.0025 kg MJ-1.Keywords: mechanism, physiological, morphological, adaptation

Aktivitas Herbisida Campuran Bahan Aktif Cyhalofop-Butyl dan Penoxsulam terhadap Beberapa Jenis Gulma Padi Sawah Dwi Guntoro; Trisnani Yuda Fitri
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

Weed competition becomes a major problem in low land rice. Weeds can reduce rice production up to 60-70%. Mixing herbicides is expected to obtain a broader spectrum of control of the weeds. Inappropriate mixing herbicides may cause antagonism effect which can reduce the effectiveness on the target weed. The objective of the research was to study the antagonism activity of two active ingredients herbicide mixture, cyhalofop-butyl and penoxulam. The treatment was consisted of three types of herbicide with five level of doses, i.e. a single herbicide cyhalofop-butyl (0, 375, 750, 1500, and 3000 g ai ha-1), penoxulam (0, 50, 100, 200, and 400 g ai ha-1), and the mixture of cyhalofop- butyl 50 g L-1+ penoxulam 10 g L-1(0, 225, 450, 900, and 1800 g ai ha-1). The target weeds were Echinochloa cruss-galliand Monochoria vaginalis. Dry weight of biomass and percent of damage would further determine wheather the herbicide mixture were synergistic, antagonistic, or additive. Since cyhalofop-butyl and penoxulam had a different mode of action, analysis of the data used MSM (Multiplicative Survival Model) method to determine the LD50 of each herbicide treatment and mixture component. The result showed that an active ingredient mixture of cyhalofop-butyl 50 g L-1+ penoxulam 10 g L-1 was not antagonist, with LD50-expectation values of 253.231 g ai ha-1and the LD50-treatment of 211.91 g ai ha-1. The co-toxicity value was 1.19 (>1).Key words: rice field weeds, cyhalofop-butyl, penoxulam, herbicide mixture, MSM (Multiplicative Survival Model), LD50

Daya Hasil 15 Galur Cabai IPB dan Ketahanannya terhadap Penyakit Antraknosa yang Disebabkan oleh Colletotrichum acutatum Lia Marliyanti; Muhamad Syukur; . Widodo
Buletin Agrohorti Vol. 1 No. 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

This research intended to evaluate the yield of 15 IPB chili pepper lines from Plant Genetics and Breeding Division, Department of Agronomy and Horticulture, IPB, and was compared then with 5 commercial varieties. This research also intended to evaluate its resistance to anthracnose. This research was done from January until July 2011 at Bogor. The main character that evaluated was yield component and resistant to character. IPB019015, IPB110005, IPB120005, IPB009019, IPB002046, and IPB001004 had yield ability better than commercial varieties. IPB019015 had resistance to anthracnose disease better than commercial varieties.Keywords: anthracnose, chili, yield component

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