Respons Tiga Klon Tanaman Rami (Boehmeria Nivea (L.) Gaud) Terhadap Konsentrasi Asam Giberelat Yang Berbeda,
2017
Departemen Budidaya Pertanian, Fakultas Pertanian, Universitas Padjadjaran
Respons Tiga Klon Tanaman Rami (Boehmeria Nivea (L.) Gaud) Terhadap Konsentrasi Asam Giberelat Yang Berbeda, Cucu Suherman, Anne Nuraini, Veronika Sri Rahayu Wulandari
Jurnal Kultivasi
Tanaman rami merupakan salah satu jenis tanaman perkebunan penghasil serat yang serat-nya dapat dimanfaatkan dalam industri tekstil. Penelitian ini bertujuan untuk mengetahui pengaruh interaksi zat pengatur tumbuh asam giberelat (GA3) dan tiga klon rami terhadap pertumbuhan dan hasil tanaman rami serta mengetahui interaksi konsentrasi asam giberelat dan klon rami yang paling baik. Percobaan dilakukan di Kebun Percobaan Ciparanje, Fakultas Pertanian, Universitas Padjadjaran, Kabupaten Sumedang, ordo tanah Inceptisol, waktu pelaksanaan bulan Februari 2017 sampai bulan April 2017. Tipe curah hujan C (agak basah) menurut klasifikasi Schmidt dan Fergusson, dengan ketinggian tempat 754 mdpl. Percobaan ini menggunakan Rancangan Acak Kelompok pola Faktorial …
Aplikasi Chitosan Untuk Meningkatkan Hasil Benih Kentang G0 (Solanum Tuberosum L.) Kultivar Granola Pada Berbagai Jenis Media Tanam,
2017
Departemen Budidaya Pertanian, Fakultas Pertanian, Universitas Padjadjaran
Aplikasi Chitosan Untuk Meningkatkan Hasil Benih Kentang G0 (Solanum Tuberosum L.) Kultivar Granola Pada Berbagai Jenis Media Tanam, Anne Nuraini, Jajang Sauman Hamdani, Erni Suminar, Dian Ardiansyah
Jurnal Kultivasi
Salah satu kendala dalam produksi kentang di Indonesia adalah rendahnya mutu benih yang digunakan. Untuk mengatasi hal tersebut penyediaan benih kentang dilakukan dengan kultur jaringan, dengan menghasilkan benih Go. Percobaan ini bertujuan untuk mengetahui efek aplikasi chitosan terhadap hasil benih kentang G0 kultivar Granola pada berbagain jenis media tanam. Percobaan dilaksanakan dari Februari 2012 sampai Mei 2012 di screen house Kebun Percobaan Ciparanje Faperta UNPAD, Jatinangor, dengan ketinggian tempat ±750 m dpl. Percobaan memakai Rancangan Petak Terbagi dengan tiga ulangan. Petak utama adalah komposisi media tanam terdiri dari empat taraf, yaitu tanah + sekam, tanah + sekam + pupuk kotoran …
Respon Pertumbuhan Dan Hasil Panen Rebung Periode Pertama Lima Kultivar Asparagus Pada Berbagai Konsentrasi Larutan Garam,
2017
Program Studi Agronomi, Fakultas Pertanian, Universitas Padjadjaran
Respon Pertumbuhan Dan Hasil Panen Rebung Periode Pertama Lima Kultivar Asparagus Pada Berbagai Konsentrasi Larutan Garam, Zalora Sanchenia, Tino Mutiarawati Onggo, Wawan Sutari
Jurnal Kultivasi
Rebung asparagus (Asparagus officionalis L.) termasuk salah satu sayuran yang bernilai ekonomi tinggi di dunia juga di Indonesia. Kultivar asparagus yang ditanam di Indonesia umumnya merupakan kultivar introduksi dari daerah subtropis, sehingga pertumbuhan dan produksinya di Indonesia kurang optimal. Indonesia memiliki suhu dan kelembaban yang cukup tinggi sehingga dapat menyebabkan serangan berbagai penyakit pada tanaman asparagus. Aplikasi larutan garam pada media tanam mampu mengendalikan penyakit akar sehingga asparagus akan tumbuh dengan baik. Percobaan bertujuan mengetahui pengaruh konsentrasi larutan garam dan kultivar asparagus yang cocok untuk dataran medium Jatinangor supaya diperoleh pertumbuhan dan hasil rebung asparagus yang baik. Percobaan dilaksanakan di …
Respon Beberapa Klon Bibit Kina (Chinchona Sp) Asal Setek Sambung Dua Spesies Di Berbagai Media Tanam,
2017
Departemen Budidaya Pertanian, Fakultas Pertanian, Universitas Padjadjaran
Respon Beberapa Klon Bibit Kina (Chinchona Sp) Asal Setek Sambung Dua Spesies Di Berbagai Media Tanam, Yudithia Maxiselly, Ahmad Shohibboniawan, Wawan Sutari, Noladhi Wicaksana, Heri Syahrian Khomaeni
Jurnal Kultivasi
Kina merupakan tanaman yang selama ini dimanfaatkan sebagai obat berbagai penyakit, seperti malaria dan jantung karena memiliki kandungan alkaloid yang beragam. Peningkatan produktifitas tanaman kina dibutuhkan untuk menunjang kuantitas dan kualitas obat bahan alam. Salah satu factor penting dalam kualitas tanaman kina adalah bahan tanam yang baik. Bahan tanam juga didukung dengan kecocokan media tanam. Media tanam yang selama ini digunakan pada pembibitan kina memiliki kendala di bobot media sehingga sulit untuk pendistribusian bibit. Penelitian ini bertujuan mencari media baru yang cocok untuk bahan tanam kina. Bahan tanam menggunakan 6 klon kina succi yang disambung dengan 1 jenis kina ledger …
Multiplikasi Tunas Mikro Pisang (Musa Paradisiaca L.) ‘Raja Bulu’ Secara In Vitro Pada Berbagai Jenis Dan Konsentrasi Sitokinin,
2017
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Multiplikasi Tunas Mikro Pisang (Musa Paradisiaca L.) ‘Raja Bulu’ Secara In Vitro Pada Berbagai Jenis Dan Konsentrasi Sitokinin, Tiara Elma, Erni Suminar, Syariful Mubarok, Anne Nuraini
Jurnal Kultivasi
Terbatasnya ketersediaan bibit pisang bermutu di Indonesia disebabkan oleh masih rendahnya jumlah dan kualitas bibit pisang yang dihasilkan melalui metode konvensional. Waktu yang dibutuhkan untuk mendapatkan bibit cukup lama, oleh karena itu digunakan suatu metode perbanyakan untuk menghasilkan bibit dalam waktu yang relatif singkat melalui metode kultur jaringan. Tujuan dari penelitian ini adalah untuk mendapatkan salah satu jenis dan konsentrasi sitokinin terbaik dalam meningkatkan laju multiplikasi tunas pisang raja bulu secara in vitro. Percobaan dilaksanakan dari bulan November 2016 sampai bulan Maret 2017 di Laboratorium Kultur Jaringan dan Teknologi Benih Fakultas Pertanian Universitas Padjadjaran di Jatinangor, Sumedang. Rancangan Acak Lengkap …
Identifikasi Keragaman Genetik Plasma Nutfah Ubi Kayu Liar (Manihot Glaziovii Muell) Berdasarkan Karakter Morfo-Agronomi,
2017
Fakultas Pertanian, Universitas Padjadjaran
Identifikasi Keragaman Genetik Plasma Nutfah Ubi Kayu Liar (Manihot Glaziovii Muell) Berdasarkan Karakter Morfo-Agronomi, Agung Karuniawan, Hendi N. Wicaksono, Debby Ustari, Tia Setiawati, T Supriatun
Jurnal Kultivasi
Plasma nutfah tanaman merupakan sumber bahan genetik bagi program pemuliaan tanaman. Penelitian ini bertujuan untuk mengidentifikasi keragaman genetik plasma nutfah ubi kayu liar berdasarkan karakter morpho-agronomy. Percobaan dilaksanakan pada bulan Desember 2014 hingga Juni 2015. Rancangan percobaan menggunakan Rancangan Acak Kelompok (RAK) dengan perlakuan 23 aksesi ubi kayu liar dan diulang sebanyak dua kali. Analisis komponen utama menghasilkan biplot dengan nilai PC1 dan PC2 yang memiliki kontribusi terbesar terhadap variasi yaitu masing-masing sebesar 27.98% dan 19.45%. Analisis klaster menghasilkan gambar dendogram terdiri dari dua klaster utama yaitu I dan II. Pada gambar dendogram terdapat jarak euclidean antara 0.00 hingga 3.32. …
Pembentukan Ubi Mikro Kentang (Solanum Tuberosum L.) Pada Berbagai Komposisi Media In Vitro,
2017
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Pembentukan Ubi Mikro Kentang (Solanum Tuberosum L.) Pada Berbagai Komposisi Media In Vitro, Inneke Amalia, Anne Nuraini, Sumadi, Syariful Mubarok, Erni Suminar
Jurnal Kultivasi
Permasalahan umum terkait pada produksi kentang adalah penggunaan benih sumber yang kurang bermutu dan mengalami kemunduran benih. Penelitian bertujuan untuk menentukan zat penghambat tumbuh coumarin, jasmonic acid dan paklobutrazol yang tepat untuk pertumbuhan stek dan pembentukan ubi mikro kentang secara in vitrosehingga dapat digunakan untuk penyediaan bibit berkualitas. Percobaan dilaksanakan di Laboratorium Kultur Jaringan Teknologi Benih Fakultas Pertanian Universitas Padjadjaran Jatinangor, Sumedang, pada bulan Oktober 2015 sampai Mei 2016. Metode percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) yang merupakan kombinasi dari media, retardan coumarin (105 mg L-1 dan 120 mg L-1), paklobutrazol (0.4 mg L-1 dan 1 mg L-1) …
Respon Pertumbuhan Bibit Nilam Aceh (Pogostemon Cablin Benth.) Klon Sidikalang Pada Media Tanam Subsoil Dengan Pemberian Pati Beras Dan Pupuk Hayati,
2017
Departemen Budidaya Pertanian, Fakultas Pertanian, Universitas Padjadjaran
Respon Pertumbuhan Bibit Nilam Aceh (Pogostemon Cablin Benth.) Klon Sidikalang Pada Media Tanam Subsoil Dengan Pemberian Pati Beras Dan Pupuk Hayati, Mira Ariyanti, Cucu Suherman, Intan Ratna Dewi Anjarsari, Dewi Santika
Jurnal Kultivasi
Media tanam berupa topsoil masih menjadi andalan untuk mendukung pertumbuhan tanaman nilam karena kandungan mineral dan bahan organiknya yang tinggi. Seiring dengan pemanfaatannya, ketersediaan topsoil semakin berkurang dan dirasa perlu untuk mencari alternatif lain yaitu dengan memanfaatkan subsoil. Peningkatan unsur hara dalam subsoil dilakukan dengan cara pemberian pupuk organik berupa pati beras dan pupuk hayati. Percobaan dilakukan di Kebun Percobaan Fakultas Pertanian Universitas Padjadjaran Jatinangor pada Juni 2011- September 2011. Penelitian menggunakan rancangan acak kelompok terdiri dari 11 kombinasi perlakuan diulang tiga kali. Perlakuan percobaan meliputi top soil, sub soil + pupuk anorganik N 1.75 g, sub soil + 25 …
Arkansas Soybean Performance Tests 2017,
2017
University of Arkansas, Fayetteville
Arkansas Soybean Performance Tests 2017, R. D. Bond, J. A. Still, D. G. Dombek
Arkansas Agricultural Experiment Station Research Series
Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Crop Variety Improvement Program. The tests provide information to companies developing varieties and/or marketing seed within the State, and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for soybean producers.
In The Field The Women Saved The Crop: The Women’S Land Army Of World War Ii,
2017
University of Arkansas, Fayetteville
In The Field The Women Saved The Crop: The Women’S Land Army Of World War Ii, Denna M. Clymer
Graduate Theses and Dissertations
The Women’s Land Army brought together rural and urban sectors of the United States in a climate of national and regional crisis. By the time the country was cast into war, the agricultural sector was already caught in a downward economic spiral that drove away laborers. With demand falling, and farms propped up only by experiments in subsidy and parity, when military and industrial jobs emerged in urban areas, farm laborers became scarce. At the same time the war created jobs for men outside of the agricultural sector, farm prices recovered and demand soared, forcing farmers to look to women …
New Technologies For Evaluating Putting Green Surface Characteristics,
2017
University of Arkansas, Fayetteville
New Technologies For Evaluating Putting Green Surface Characteristics, Daniel Patrick O'Brien
Graduate Theses and Dissertations
Golf course putting greens require a high level of inputs predicated on timely, well informed decisions. Putting green quality is ultimately defined by performance of the turfgrass, and this performance encompasses both (i) the health and vitality of the turfgrass plants, and (ii) the ability of the turfgrass to exist as a playing surface, as it interacts with the golf ball. For golf course superintendents, accurately and efficiently assessing moisture levels and nutrient status are critical for guiding maintenance practices. This research sought to examine new ways for measuring each of these parameters, and compared them to ground-truth data and/or …
Evaluation Of Insecticide Seed Treatments To Protect Rice (Oryza Sativa) Against Various Herbicides,
2017
University of Arkansas, Fayetteville
Evaluation Of Insecticide Seed Treatments To Protect Rice (Oryza Sativa) Against Various Herbicides, Steven Michael Martin
Graduate Theses and Dissertations
The increase in herbicide-resistant weeds in Arkansas crop fields has led to the need for new herbicide modes of action for use in all crops. This need has led to the introduction of technologies that can be devastating to conventional rice crops. Field observation, noted that insecticide seed treatments used in rice could potentially reduce the effects of off-target movement of herbicides onto rice crops and possibly reduce the negative effects of some herbicides applied directly to rice. Research was conducted to determine if insecticide seed treatments could reduce the harmful effects of drift from imazethapyr and glyphosate onto conventional …
Strong Spatial-Temporal Patterns In Maize Yield Response To Nutrient Additions In African Smallholder Farms,
2017
International Plant Nutrition Institute
Strong Spatial-Temporal Patterns In Maize Yield Response To Nutrient Additions In African Smallholder Farms, Samuel Njoroge, Antonius G.T. Schut, Ken E. Giller, Shamie Zingore
All Peer-Reviewed Publications
Large variability in crop responses to macronutrient application at various spatial scales present challenges for developing effective fertilizer recommendations for crop production in smallholder farming systems of sub-Saharan Africa. We assessed maize yield responses to nitrogen (N), phosphorus (P) and potassium (K) application and evaluated relationships between crop responses to N, P and K application and soil analysis data. Nutrient omission trials were conducted on 23 farms located in Sidindi, Western Kenya, selected to be representative of the main soil and management factors in maize based systems in Siaya County. Treatments included a control and PK, NK, NP and NPK …
Identification Of Kairomones Of Second Instar Nymphs Of The Variegated Coffee Bug Antestiopsis Thunbergii (Heteroptera: Pentatomidae),
2017
International Centre of Insect Physiology and Ecology Nairobi
Identification Of Kairomones Of Second Instar Nymphs Of The Variegated Coffee Bug Antestiopsis Thunbergii (Heteroptera: Pentatomidae), Teresiah N. Njihia, Baldwyn Torto, Lucy K. Murungi, Janet Irungu, Dickson M. Mwenda, Régis Babin
All Peer-Reviewed Publications
The variegated coffee bug Antestiopsis thunbergii Gmelin is a key pest of Coffea arabica in East Africa. Although the bug feeds on various parts of the coffee plant, it has a strong preference for mature green berries which are essential for the bug to complete its life cycle, reproduce and enhance its longevity. To locate mature green coffee berries, we hypothesized that second instar nymphs, which are the most mobile and active feeding immature stage of the bug, must rely on key volatile compounds emitted by the host for recognition. We tested this hypothesis using behavioral and electrophysiological assays and …
Welwitschianalol A And B, Two Cyclohexene Derivatives And Other Insecticidal Constituents Of Caesalpinia Welwitschiana (Oliv.) Brenan,
2017
Kenyatta University
Welwitschianalol A And B, Two Cyclohexene Derivatives And Other Insecticidal Constituents Of Caesalpinia Welwitschiana (Oliv.) Brenan, Flaure Rosette Ehawa Essoung, Brice Mittérant Mba'ning, Wilber Lwande, Silvère Augustin Ngouela, Etienne Tsamo, Sumesh Chander Chhabra, Ahmed Hassanali, Russell John Cox
All Peer-Reviewed Publications
Crude methanol extract of the leaves of Caesalpinia welwitschiana was found to possess moderate larvicidal activity against second-instar larvae of Tuta absoluta Meyrick. Bioassay-guided fractionation of this extract led to the isolation of two oxygenated cyclohexene derivatives, welwitschianalol A (1, (1α,2β)-2-acetoxy-1-hydroxy-1- benzoyloxymethylcyclohex-5-ene) and B (2, (1α,2β)-2- benzoyloxy −1-cinnamoyloxymethyl-1-hydroxycyclohex-5-ene), together with eight known compounds, comprising bonducellin, dipteryxic acid, 3′-hydroxygenkwarin, afzelin, quercitrin, myricitrin, methyl gallate and gallic acid. The structures of the unknown compounds as well as those of the known ones were elucidated based on their MS, 1D and 2D NMR spectra, and in the case of known compounds, by comparison …
The Cotesia Sesamiae Story: Insight Into Host-Range Evolution In A Hymenoptera Parasitoid And Implication For Its Use In Biological Control Programs,
2017
CNRS Centre National de la Recherche Scientifique
The Cotesia Sesamiae Story: Insight Into Host-Range Evolution In A Hymenoptera Parasitoid And Implication For Its Use In Biological Control Programs, L. Kaiser, S. Dupas, A. Branca, E. A. Herniou, C. W. Clarke, C. Capdevielle Dulac, J. Obonyo, R. Benoist, J. Gauthier, P. A. Calatayud, J. F. Silvain, B. P. Le Ru
All Peer-Reviewed Publications
This review covers nearly 20 years of studies on the ecology, physiology and genetics of the Hymenoptera Cotesia sesamiae, an African parasitoid of Lepidoptera that reduces populations of common maize borers in East and South Africa. The first part of the review presents studies based on sampling of C. sesamiae from maize crops in Kenya. From this agrosystem including one host plant and three main host borer species, studies revealed two genetically differentiated populations of C. sesamiae species adapted to their local host community, and showed that their differentiation involved the joint evolution of virulence genes and sensory mechanisms of …
Predicting Minimum Tillage Adoption Among Smallholder Farmers Using Micro-Level And Policy Variables,
2017
International Maize and Wheat Improvement Center, CIMMYT
Predicting Minimum Tillage Adoption Among Smallholder Farmers Using Micro-Level And Policy Variables, Paswel P. Marenya, Menale Kassie, Moti Jaleta, Dil Bahadur Rahut, Olaf Erenstein
All Peer-Reviewed Publications
Minimum tillage combined with mulching (MTM) is critical to conservation agriculture, yet its use by smallholder farmers raises challenging questions regarding adoption, diffusion and scaling at farm level. In this paper, we used probit regression and post-estimation simulations to identify the key micro (farm specific) and macro (country specific) factors as predictors of MTM adoption in four countries spanning a north-south gradient in eastern and southern Africa (ESA): Ethiopia, Kenya, Tanzania and Malawi. We found that farmers’ access to markets and social capital empirically predicted MTM adoption. Policies that increased fertilizer subsidies and extension-staff-to-farmer ratios had similar effects, even if …
Parasitic Nematode Meloidogyne Incognita Interactions With Different Capsicum Annum Cultivars Reveal The Chemical Constituents Modulating Root Herbivory,
2017
International Centre of Insect Physiology and Ecology Nairobi
Parasitic Nematode Meloidogyne Incognita Interactions With Different Capsicum Annum Cultivars Reveal The Chemical Constituents Modulating Root Herbivory, Ruth Kihika, Lucy K. Murungi, Danny Coyne, Margaret Ng'ang'a, Ahmed Hassanali, Peter E.A. Teal, Baldwyn Torto
All Peer-Reviewed Publications
Plant volatile signatures are often used as cues by herbivores to locate their preferred hosts. Here, we report on the volatile organic compounds used by the subterranean root-knot nematode (RKN) Meloidogyne incognita for host location. We compared responses of infective second stage juveniles (J2s) to root volatiles of three cultivars and one accession of the solanaceous plant, Capsicum annum against moist sand in dual choice assays. J2s were more attracted to the three cultivars than to the accession, relative to controls. GC/MS analysis of the volatiles identified common constituents in each plant, five of which were identified as α-pinene, limonene, …
Evaluating The Impact Of Two Contrasting Tillage Practices On Soil Properties In Central Kentucky,
2017
Murray State University
Evaluating The Impact Of Two Contrasting Tillage Practices On Soil Properties In Central Kentucky, Emily Cook
Posters-at-the-Capitol
Farming practices such as no tillage and plowing can institute change on soil physical and chemical characteristics. In this research, the effects of long-term conventional and no-tillage systems on the selected soil properties were determined in a continuous corn system on a farm with Maury silt loam soil. These samples were taken from University of Kentucky's Research Farm (Spindletop Farm). The field used was tilled in 1969 from bluegrass sod and the first time research was conduced was in 1970. Each plot is 20 ft. by 40 ft. and for many years each plot was split with winter cover crop …
Characterization Of Aspergillus Flavus Soil And Corn Kernel Populations From Eight Mississippi River States,
2017
Louisiana State University and Agricultural and Mechanical College
Characterization Of Aspergillus Flavus Soil And Corn Kernel Populations From Eight Mississippi River States, Jorge A. Reyes Pineda
LSU Master's Theses
Aspergillus flavus is a saprophytic ascomycete that can also actively invade the seed of crops and potentially contaminate them with harmful aflatoxins. Management of A. flavus currently relies mostly on biocontrol. However, there is still a lot to learn about its biology and ecology so the current approach can be improved. An A. flavus population survey was undertaken during the fall of 2014 across eight Mississippi River states to determine population diversity and geographic distribution of VCGs. Isolates from corn and soil were also characterized for VCG, sclerotial morphotype, mating type, cyclopiazonic acid, and aflatoxin production in order to determine …
