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| Registros recuperados: 789 | |
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| Dargatz, David. |
| As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on cow/calf health, productivity, and management practices. Data for Part III: Beef Cow/Calf Health & Health Management were collected by federal and state veterinary officers (VMO's) in 18 of the largest cow/calf producing states between January 4 and February 28, 1993. These 18 states represented 70 percent of the U.S. beef cow inventory. Participating producers had five or more beef cows or beef replacement heifers and fifty percent or more of their 1992 calf crop... |
| Tipo: Report |
Palavras-chave: NAHMS; Epidemiology; Beef cattle; Calves; Breeding; Calving; Calf crop; Replacement heifers; Economics; Sales; Disease; Parasites; Pinkeye; Scours; Livestock Production/Industries. |
| Ano: 1994 |
URL: http://purl.umn.edu/32748 |
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| Dargatz, David. |
| As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on cow/calf health, productivity, and management practices. The National Agricultural Statistics Service (NASS) collaborated with USDA:APHIS:VS to select a producer sample that was statistically designed to provide inferences about the nation's cow/calf population. Data for Part IV: Beef Cow/Calf Breeding Management were collected by federal and state veterinary officers (VMO's) in 18 of the largest cow/calf producing states between July 1 and July 30, 1993. These 18 states... |
| Tipo: Report |
Palavras-chave: NAHMS; Epidemiology; Beef cattle; Calves; Breeding; Mortality; Grazing; Trichomonas fetus; Vaccination; Deworming; Palpation; Livestock Production/Industries. |
| Ano: 1994 |
URL: http://purl.umn.edu/32753 |
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| Wächter, Dr. Rebecca; Wolf, Dr. Gerhard; Koch, Dr. Eckhard. |
| Attack with common bunt (Tilletia caries) is a potential threat to wheat production in organic farming. The situation may even become worse if (in agreement with EU-legislation) only organically produced seed is used in organic farming. The targeted use of resistant varieties could be a way to alleviate the problem. However, knowledge regarding bunt resistance of wheat varieties on the one hand and aggressiveness in populations of the bunt pathogen on the other hand is still insufficient. In the frame of a federal research programme for organic farming (BÖL),30 winter wheat varieties and breeding lines were studied at five different locations using spores of local origin in order to assess the natural level of resistance (WÄCHTER et al. 2004). In addition,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2004 |
URL: http://orgprints.org/3539/1/3539.pdf |
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| Mazollier, Catherine; Taulet, Annick; Lambion, Jérôme. |
| Dans le Sud de la France, la culture du chou rave est essentiellement pratiquée en agriculture biologique ; les maraîchers bio disposent donc de peu de référence sur les techniques culturales (problème récurrent d’hétérogénéité à la récolte) et le choix des variétés adaptées aux conditions spécifiques de culture sous abris en Provence. De plus, l’utilisation obligatoire de semences biologiques ou à défaut non traitées limite le choix variétal. Cet essai permet de poursuivre l’étude des variétés et techniques, débutée en 2004 au GRAB : nous avions obtenu de bons résultats en terme de croissance équilibrée et d’homogénéité avec 3 variétés : Olivia surtout (Vitalis, semences biologiques), et dans une moindre mesure Eder et Spree (Rijk Zwaan, semences non... |
| Tipo: Report |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2006 |
URL: http://orgprints.org/8756/1/vari%C3%A9t%C3%A9s_CHOU_RAVE.pdf |
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| Eken, Cafer; Genç, Tuba; Tuncer, Serdar; Kadıoğlu, Zakine. |
| Adaptasyon kabiliyetinin yüksekliği sayesinde, çileğin (Fragaria X ananassa Duch.) çok farklı ekolojilerde yetiştiriciliği yapılmaktadır. Çilek de diğer taze meyve sebzelerde olduğu gibi, özellikle yetiştirme döneminde hüküm süren fungal hastalıklar nedeniyle önemli ürün kayıplarına uğramaktadır. Botrytis cinerea Pers. ex Fr. (teleomorf; Botryotinia fuckeliana (de Bary) Whetzel) çilekte çiçek veya meyvede kurşuni küf hastalığına sebep olmakta, hem hasat öncesinde hem de hasat sonrasında çilekteki başlıca ürün kayıpları bu hastalıktan kaynaklanmaktadır. Hastalık ile mücadelede çiçeklenme dönemindeki fungisit uygulamaları hastalığın engellenmesinde kullanılan en etkili ve yaygın yöntemdir. Ancak, B. cinerea’nın fungisitlere karşı kazandığı dayanıklılık,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2013 |
URL: http://orgprints.org/28610/1/SamsunEkenetal.pdf |
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| Pires,Marcel Viana; Cunha,Dênis Antônio da. |
| Plant breeding through the development of seeds resistant to water stress or high temperature is an important adaptive strategy to cope climate change. In this way, by providing an analysis of adaptation to climate change using genetic breeding on Brazilian farms, this work aims to investigate how climate change will affect the adoption of genetic breeding and profitability of farmers. Temperature and rainfall projections for 2010-2099 time periods were used, considering different climate scenarios (A1B and A2), according to the 4th Assessment Report of IPCC (2007). A Treatment Effects model outlines the analytical framework in this study. Our results indicate the probability of adopting transgenic seeds will grow from 74% in the current period to 86% in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Adaptation; Breeding; Seeds; Drought; Heat. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032014000400001 |
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| Pedersen, T.M.; Döring, T.F.; Baresel, P.; Borgen, A.; Finckh, M.R.; Howlett, S.A.; Ortolani, L.; Pearce, B.D.; Wolfe, M.S.. |
| Development of organic plant breeding and seed production will have a valuable impact on organic plant production. Breeding of plant material adapted for organic agriculture is crucial in order to cope with stresses such as climate change, weeds and seed borne diseases. Conventional varieties may not meet the specific needs of organic agriculture. The use of plant material adapted to conditions of organic agriculture will have a positive effect on the productivity and sustainability of organic crop production. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2013 |
URL: http://orgprints.org/24581/1/24581.pdf |
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| Döring, Thomas F.; Baresel, Jörg Peter; Borgen, Anders; Finckh, Maria R.; Howlett, Sally; Ortolani, Livia; Pearce, Bruce; Pedersen, T.M.; Wolfe, Martin. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2013 |
URL: http://orgprints.org/27954/1/2013.Doring%20et%20al.COBRA.Eucarpia.pdf |
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| Organic plant production is currently challenged by several pressure factors. Along with perennial problems such as weed control, climate change is threatening to affect crop production through increasing weather variability. Plant breeding is a crucial factor in creating organic crop production systems that can better cope with such interacting stresses and producers need crop varieties with (a) good resistance against pests and diseases, esp. seed borne diseases; (b) the ability to react to environmental, esp. climatic variability; and (c) high competitiveness against weeds. COBRA aims to support and develop organic plant breeding and seed production with a focus on increasing the use and potential of plant material with High genetic Diversity (Hi-D) in... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection Regulation. |
| Ano: 2023 |
URL: http://orgprints.org/22617/1/COBRA_short_description_Orgprints_2ndCall%20V1.0.pdf |
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| Sera,Gustavo Hiroshi; Sera,Tumoru; Ito,Dhalton Shiguer; Ribeiro Filho,Claudionor; Villacorta,Amador; Kanayama,Fabio Seidi; Alegre,Clayton Ribeiro; Del Grossi,Leandro. |
| The aim of this study was to evaluate the coffee germplasm of the Paraná Agronomic Institute (IAPAR) for resistance to the coffee-berry-borer. Preliminary field evaluation was performed in August 2004 and the fruits of less damaged genotypes in the field were evaluated under controlled condition with obligated and free choice experiments established in a randomized complete design with three replications. The genotypes were evaluated fifteen days after infestation with one borer per fruit in Petri dishes. The data were analyzed by the Scott-Knott means test at 1 % and by the χ2 test. Statistical analysis indicated that Coffea kapakata, Psilanthus bengalensis, C. eugenioides and genotypes with C. eugenioides genes were resistant. These genotypes presented... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding; Coffea; Cultivars; Hypothenemus hampei; Psilanthus. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200003 |
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| GARCIA, T. B.; NASCIMENTO FILHO, F. J. do; CORREA, M. P. F.; DANTAS, J. C. R.. |
| Em 1986, foi iniciado um programa de coleta de germoplasma de guarana, visado a introducao de 1000 genotipos, no periodo de cinco anos. A coleta de estacas foi feita em plantas produtivas, resistentes a antracnose, superbrotamento. A baixa frequencia dessas plantas nas populacoes, da ordem de 10%, reduziu o numero de genotipos coletados. Entre 1986-1987, foram coletados 288 genotipos em 25 populacoes, plantados em 1987 e 1988, respectivamente, originando 187 clones. |
| Tipo: Outras publicações técnicas (INFOTECA-E) |
Palavras-chave: Paullinia cupana var; Sorbilis; Melhoramento genetico; Brasil; Amazonas; Genotypes.; Clone; Genótipo; Germoplasma; Guaraná.; Germplasm.; Breeding. |
| Ano: 1991 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665205 |
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| Registros recuperados: 789 | |
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