ESTONIA: COUNTRY REPORT to the FAO INTERNATIONAL TECHNICAL CONFERENCE on PLANT GENETIC RESOURCES (Leipzig,1996)

Total Page:16

File Type:pdf, Size:1020Kb

ESTONIA: COUNTRY REPORT to the FAO INTERNATIONAL TECHNICAL CONFERENCE on PLANT GENETIC RESOURCES (Leipzig,1996) ESTONIA: COUNTRY REPORT TO THE FAO INTERNATIONAL TECHNICAL CONFERENCE ON PLANT GENETIC RESOURCES (Leipzig,1996) Prepared by: K. Kask I. Etverk Tallinn, May 1995 ESTONIA country report 2 Note by FAO This Country Report has been prepared by the national authorities in the context of the preparatory process for the FAO International Technical Conference on Plant Genetic Resources, Leipzig, Germany, 17-23 June 1996. The Report is being made available by FAO as requested by the International Technical Conference. However, the report is solely the responsibility of the national authorities. The information in this report has not been verified by FAO, and the opinions expressed do not necessarily represent the views or policy of FAO. The designations employed and the presentation of the material and maps in this document do not imply the expression of any option whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. ESTONIA country report 3 Table of Contents CHAPTER 1 INTRODUCTION TO ESTONIA AND ITS AGRICULTURAL SECTOR 4 1.1 CLIMATE AND SOILS 4 1.2 FOREST TREES 5 1.3 RECENT TRENDS 6 CHAPTER 2 INDIGENOUS PLANT GENETIC RESOURCES 7 2.1 LANDRACES 8 CHAPTER 3 CONSERVATION ACTIVITIES 9 3.1 EX SITU COLLECTIONS 9 3.2 REGENERATION 12 CHAPTER 4 IN-COUNTRY USE OF PLANT GENETIC RESOURCES 13 CHAPTER 5 NATIONAL GOALS, POLICIES PROGRAMMES AND LEGISLATION 15 CHAPTER 6 INTERNATIONAL COLLABORATION 17 CHAPTER 7 NATIONAL NEEDS AND OPPORTUNITIES 19 ANNEX 1 THE ESTONIAN FOREST GENETIC RESOURCES 20 INTRODUCTION TO THE ESTONIAN FOREST SECTOR 20 INDIGENOUS PLANT GENETIC RESOURCES 21 NATIONAL CONSERVATION ACTIVITIES 23 IN-COUNTRY USE OF PLANT GENETIC RESOURCES 25 ESTONIA country report 4 CHAPTER 1 Introduction to Estonia and its Agricultural Sector The Republic of Estonia is one of the Baltic countries in the northern part of Europe. In the North Estonia is bounded by the Gulf of Finland and in the West by the Gulf of Riga. The Russian Federation in the East, the Republic of Latvia in the South and the Republic of Finland in the North (less than 90 km from the northern coast) are the three closest neighbours of Estonia. It extends from 57° 30' N to 59° 40' N and from 21° to 28° 15' E. The area of Estonia is a little larger than that of Denmark and equals to 45,200 square kilometres. 9.2% of the territory is under islands and 6.1% is taken up by inland water bodies. The country is largely a plain, which is on average only 50 m above sea-level; only 1/10 of the territory is above 100 m. Estonia (January 1, 1994) has a population of 1.5 million. 70.3% live in urban and 29.7% in rural areas. The average population density is 33.3 habitants per square kilometre. Estonia was an independent republic from 1918 to 1940. In 1940 it was occupied by the Soviet Union and Estonia became one of the 15 union republics of the Soviet Union. The democratic movement started at the end of the 1980s. The independent Republic of Estonia was reestablished on the 21st of August, 1991 (the official name since the 8th of May, 1990). 1.1 CLIMATE AND SOILS In Estonia the average annual air temperature is 5°C. The air temperature in summer is somewhat lower than the average for the latitude, but considerably higher in winter. Nevertheless, the lowest air temperature recorded in Estonia is -43.5°C and it was registered on the night of January 16th to 17th, 1940. Severe winters (-30°C to -40°C) occur one or two times in 10 years. Thaws are characteristic of winter, but there can also be very stable cold spells, for example in some winters the air temperature (in inland) does not rise above 0°C during 90 or 100 days. The vegetation period generally lasts for 170-185 days, the period of active plant growth is 120-130 days. The annual amount of precipitation (550-650 mm) exceeds evaporation approximately twofold. ESTONIA country report 5 Nevertheless, there may be especially severe draughty periods in the western part of Estonia in spring and in the first half of summer. The principal soils are soddy calcareous soils (26.3% of all arable lands) and soddy clay soils (32.3%). Soils influenced by erosion make up 18.9%. Bog soils constitute 7.7%. The major part of agricultural land needs reclamation, primarily drainage: 63% of the soils are excessively wet. 44% of the soils are acid. One third of the total area of Estonia is arable land, one fourth is under cultivated meadows, pastures and other lands. 35%. of the area is under forest. Main crops grown are barley, rye, wheat, oats, legumes, vegetables, potato, field grasses, annual fodder crops. The need of the country is to be entirely supplied from the local production. Higher quality wheat is needed for pasta (macaroni) products and white bread. 3/4 of the field production is used to feed livestock. Estonia does not produce any following minor crops of local diet: buckwheat, maize, millet and rice. Fields and grasslands are sown with selected seed, chiefly with those bred at the (Estonian) Jýgeva Plant Breeding Institute. Fruit is mostly grown in small backyard gardens and fruit growing supplies 3040 kg per capita consumption. 1.2 FOREST TREES Coniferous trees are predominant (about 64%). The species composition is as follows: pine (Pinus sylvestris) 41%, birch (Betula pendula and Betula pubescens) 28%, spruce (Picea abies) 23%, speckled alder (Alnus incana) 4%, aspen (Populus tremula) 2% black alder (Alnus glutinosa) 1.5%, oak, ash and others 0.9%. In 1979 the percentage of forest stands on the Estonian territory rose to 38.7 as compared with 29% in 1958, and decreased to 35% in 1994. In 1993 10.3% of the inhabitants were active in the agricultural sector, hunting and forestry. 37.7% of the workers were active in food processing industry. ESTONIA country report 6 1.3 RECENT TRENDS The former (Soviet time) resource-constrained and centrally planned economy has been turned into demand-driven and market oriented economy. In the past years the economy was mostly based upon the cheap resources from the former Soviet Union and mostly supplied the Soviet markets. Now it is directed to western markets and broad participation in the world economy. The state ownership that dominated a few years ago has been substituted by private ownership. Agricultural production has declined. For example 967,00 tons of grain was produced in 1989, in 1992 the production was only 399,00 tons. In 1993 the potato production declined from 864,00 tons to 539,00 tons. The decline in the Estonian agriculture is due to the failure of the Russian markets. Some relief may be gained from the Free Trade Agreement with the EU. The restitution of property rights on land tends to produce a great number of small private farms. The use of mineral fertilizers and chemicals for controlling pests and weeds has declined dramatically because of low farm income and the rising prices of these chemicals. In 1992 the average yields per hectare dropped because of draught and, in the following years, due to the shortage of chemicals. It will take years to restore efficient and highly competitive private farming, Local cultivars are less affected from pest and disease attacks and better adapted to the shortened use of mineral fertilizers and unfavourable winter conditions than foreign ones. ESTONIA country report 7 CHAPTER 2 Indigenous Plant Genetic Resources There is a unique genetic diversity of economically important qualities in the wild of Estonia that has never been utilized in the development or improvement of the cultivated varieties. There are some wild progenitors or wild relatives of current or potentially important commercial agricultural (including pasture) plants among the natural vegetation of Estonia. They are still available in the wild and are not threatened by human activity. These species are the following: Gramineae From genus Agrostis - A. canina, A. gigantea, A. stolonifera A. tenuis, A vinealis Festuca - F. arundinacea, F. gigantea, F. pratensts, F. rubra Koelena - K. glauca, K. grandis Phleum - P. beriolonii, P. phleoides, P. pretense Poa pratensis Papilionaceae Lotus - L. corniculatus Medicago - M.falcata, M. lupulina They have outstanding winter hardiness and are adapted to different soil conditions, e.g. to superfluous soil moisture (Agrostis sp.), alkaline or acid soils, strong draught (Medicago sp.). Some above-mentioned species have been used in the Estonian breeding programmes during the last decades. There is a cranberry species (Vaccinium oxycoccus) in the Estonian bogs. It has become adapted to the climate of Estonia and is already used in cultivar breeding, Some bogs have been demolished entirely but 760 samples of the Estonian cranberry have been planted into a collection at the Nigula Nature Reserve. ESTONIA country report 8 2.1 LANDRACES There have been many "farmers' varieties" in Estonia but only a few are still maintained and very few are used by farmers at the present time. In the 1950ies and 1960ies many farmers' varieties and old (bred 70 years ago) cultivars of the Estonian breeding programmes have for conservation purposes been given into the collections (elementary gene bank) of the N. Vavilov Institute of Plant Industry (St. Petersburg, Russia). Lately, the situation in Russia has changed so dramatically that the possibility to save the cultivars is getting threatened. Fortunately, Estonia got the germplasm (seeds of old varieties) back from Russia (in 1994).
Recommended publications
  • VOCATIONAL AGRICULTURE News and Notes
    UNIVERSITY OF ILLINOIS LIBRARY WURBANA-CHAMPAIGN ACES 3«SB WJ6 N TVjRtUW^ N&«^ Digitized by the Internet Archive in 2011 with funding from University of Illinois Urbana-Champaign http://www.archive.org/details/vocationalagricu1997univ \K&> y.yX-'-'-'-v"¥*>Yr:'?->>r^ VOCATIONAL AGRICULTURE SEP | 5 1997 try - I ihnr News and Notes Volume 56, Number 1 September, 1997 Vocational Agriculture Service ACES Information Technology and Communication Services College of Agricultural, Consumer and Environmental Sciences College of Agricultural University of Illinois at Urbana-Champaign Consumer or>d 1401 S. Maryland Drive, Urbana, IL 61801 Environmental Sconces (217) 333-3871 FAX (217) 333-0005 VOCATIONAL AGRICULTURE DATES TO REMEMBER 1997 September 1 Labor Day—University of Illinois holiday 16 ILCAE Meeting—IDOA Building, Springfield 20 State Horse Judging CDE—Blackhawk East CC, Kewanee 23-25 Farm Progress Show—Seneca, IL 29 Illinois FFA Board of Directors Meeting—Illinois FFA Center, Roanoke October 2 Moorman Mfg., Inc. /FFA Leadership Conference—Quincy (Tentative) 2-3 IACCAI Conference—Illinois Central College, East Peoria 10-11 Beginning FFA Advisors Workshop—Site TBA 11 IAVAT Board of Directors Meeting—Site TBA November 13-15 National FFA Convention—Kansas City, MO 27-28 Thanksgiving—University of Illinois holiday December 6 State Crops & Dairy Products CDE's—University of Illinois 10-14 NVATA/AVA Convention—Las Vegas, NV 24-26 Christmas—University of Illinois holiday 1998 January 1-2 New Years Break—University of Illinois holiday 9 IAVAT Board
    [Show full text]
  • Evolution and Sustainability of the Olive Production Systems
    Evolution and sustainability of the olive production systems Fernandez Escobar R., de la Rosa R., Leon L., Gomez J.A., Testi F., Orgaz M., Gil-Ribes J.A., Quesada-Moraga E., Trapero A. in Arcas N. (ed.), Arroyo López F.N. (ed.), Caballero J. (ed.), D'Andria R. (ed.), Fernández M. (ed.), Fernandez Escobar R. (ed.), Garrido A. (ed.), López-Miranda J. (ed.), Msallem M. (ed.), Parras M. (ed.), Rallo L. (ed.), Zanoli R. (ed.). Present and future of the Mediterranean olive sector Zaragoza: CIHEAM / IOC Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 106 2013 pages 11-42 Article available on line / Article disponible en ligne à l’adresse : -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- http://om.ciheam.org/article.php?IDPDF=6803 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- To cite this article / Pour citer cet article -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Fernandez Escobar R., de la Rosa R., Leon L., Gomez J.A., Testi F., Orgaz M., Gil-Ribes J.A., Q uesada- Moraga E., Trapero A. Evolution and sustainability of the olive production systems. In : Arcas N. (ed.), Arroyo López F.N. (ed.), Caballero J. (ed.), D'Andria R. (ed.), Fernández M. (ed.), Fernandez
    [Show full text]
  • Sinningia Speciosa Sinningia Speciosa (Buell "Gloxinia") Hybrid (1952 Cover Image from the GLOXINIAN)
    GESNERIADS The Journal for Gesneriad Growers Vol. 61, No. 3 Third Quarter 2011 Sinningia speciosa Sinningia speciosa (Buell "Gloxinia") hybrid (1952 cover image from THE GLOXINIAN) ADVERTISERS DIRECTORY Arcadia Glasshouse ................................49 Lyndon Lyon Greenhouses, Inc.............34 Belisle's Violet House ............................45 Mrs Strep Streps.....................................45 Dave's Violets.........................................45 Out of Africa..........................................45 Green Thumb Press ................................39 Pat's Pets ................................................45 Kartuz Greenhouses ...............................52 Violet Barn.............................................33 Lauray of Salisbury ................................34 6GESNERIADS 61(3) Once Upon a Gloxinia … Suzie Larouche, Historian <[email protected]> Sixty years ago, a boy fell in love with a Gloxinia. He loved it so much that he started a group, complete with a small journal, that he called the American Gloxinia Society. The Society lived on, thrived, acquired more members, studied the Gloxinia and its relatives, gesneriads. After a while, the name of the society changed to the American Gloxinia and Gesneriad Society. The journal, THE GLOXINIAN, grew thicker and glossier. More study and research were conducted on the family, more members and chapters came in, and the name was changed again – this time to The Gesneriad Society. Nowadays, a boy who falls in love with the same plant would have to call it Sinningia speciosa. To be honest, the American Sinningia Speciosa Society does not have the same ring. So in order to talk "Gloxinia," the boy would have to talk about Gloxinia perennis, still a gesneriad, but a totally different plant. Unless, of course, he went for the common name of the spec- tacular Sinningia and decided to found The American Florist Gloxinia Society.
    [Show full text]
  • Starmaya: the First Arabica F1 Coffee Hybrid Produced Using Genetic Male Sterility
    METHODS published: 22 October 2019 doi: 10.3389/fpls.2019.01344 Starmaya: The First Arabica F1 Coffee Hybrid Produced Using Genetic Male Sterility Frédéric Georget 1,2*, Lison Marie 1,2, Edgardo Alpizar 3, Philippe Courtel 3, Mélanie Bordeaux 4, Jose Martin Hidalgo 4, Pierre Marraccini 1,2, Jean-christophe Breitler 1,2, Eveline Déchamp 1,2, Clément Poncon 3, Hervé Etienne 1,2 and Benoit Bertrand 1,2 1 CIRAD, UMR IPME, Montpellier, France, 2 IPME, Université de Montpellier, IRD, CIRAD, Montpellier, France, 3 Plant material, ECOM, Exportadora Atlantic, Managua, Nicaragua, 4 FONDATION NICAFRANCE, Managua, Nicaragua In the present paper, we evaluated the implementation of a seed production system based on the exploitation of male sterility on coffee. We studied specifically the combination between CIR-SM01 and Marsellesa® (a Sarchimor line), which provides a hybrid population called Starmaya. We demonstrated that the establishment of seed garden under natural pollination is possible and produces a sufficient amount of hybrid seeds to be multiplied efficiently and economically. As expected for F1 hybrid, the performances of Starmaya are highly superior to conventional cultivars. However, we observed some heterogeneity on Starmaya cultivar Edited by: in the field. We confirmed by genetic marker analysis that the off-types were partly related to Marcelino Perez De La Vega, Universidad de León, Spain the heterozygosity of the CIR-SM01 clone and could not be modified. Regarding the level Reviewed by: of rust resistance of Starmaya cv., we saw that it could be improved if Marsellesa was more Aaron P. Davis, fully fixed genetically. If so, we should be able to decrease significantly the percentage of rust Royal Botanic Gardens, Kew, United Kingdom incidence of Starmaya from 15 to 5%, which would be quite acceptable at a commercial Eveline Teixeira Caixeta, level.
    [Show full text]
  • Olea Europaea L.) by Conventional and in Vitro Biotechnology Methods
    Biotechnology Advances 34 (2016) 687–696 Contents lists available at ScienceDirect Biotechnology Advances journal homepage: www.elsevier.com/locate/biotechadv Research review paper Genetic improvement of olive (Olea europaea L.) by conventional and in vitro biotechnology methods E. Rugini ⁎, V. Cristofori, C. Silvestri Department of Agricultural and Forestry Science (DAFNE), University of Tuscia, Via San Camillo de Lellis, 01100 Viterbo, Italy article info abstract Article history: In olive (Olea europaea L.) traditional methods of genetic improvement have up to now produced limited results. Received 22 September 2015 Intensification of olive growing requires appropriate new cultivars for fully mechanized groves, but among the Received in revised form 1 March 2016 large number of the traditional varieties very few are suitable. High-density and super high-density hedge row Accepted 7 March 2016 orchards require genotypes with reduced size, reduced apical dominance, a semi-erect growth habit, easy to Available online 10 March 2016 propagate, resistant to abiotic and biotic stresses, with reliably high productivity and quality of both fruits and Keywords: oil. Innovative strategies supported by molecular and biotechnological techniques are required to speed up Olea europaea novel hybridisation methods. Among traditional approaches the Gene Pool Method seems a reasonable option, Intensive cultivation but it requires availability of widely diverse germplasm from both cultivated and wild genotypes, supported by Rootstocks a detailed knowledge of their genetic relationships. The practice of “gene therapy” for the most important Gene pool hybridization method existing cultivars, combined with conventional methods, could accelerate achievement of the main goals, but ef- In vitro techniques forts to overcome some technical and ideological obstacles are needed.
    [Show full text]
  • The European Garden Flora Flowering Plants Volume 5: Angiospermae – Dicotyledons, 2Nd Edition Edited by James Cullen , Sabina G
    Cambridge University Press 978-0-521-76164-2 — The European Garden Flora Flowering Plants Volume 5: Angiospermae – Dicotyledons, 2nd Edition Edited by James Cullen , Sabina G. Knees , H. Suzanne Cubey Frontmatter More Information THE EUROPEAN GARDEN FLORA The European Garden Flora is the definitive manual for the accurate identification of cultivated ornamental flowering plants. Designed to meet the highest scientific standards, the vocabulary has nevertheless been kept as uncomplicated as possible so that the work is fully accessible to the informed gardener as well as to the professional botanist. This new edition has been thoroughly reorganised and revised, bringing it into line with modern taxonomic knowledge. Although European in name, the Flora covers plants cultivated in most areas of the United States and Canada as well as in non- tropical parts of Asia and Australasia. Volume V completes the series, and includes many important ornamental families, such as Labiatae, Solanaceae, Scrophulariaceae, Acanthaceae, Campanulaceae, and the largest family of Dicotyledons, the Compositae. James Cullen has been a professional plant taxonomist for over 50 years, working particularly on the classification and identification of plants in cultivation (especially Rhododendron) at Liverpool and Edinburgh Universities, at the Royal Botanic Garden Edinburgh, and in Cambridge. With the late Dr S. M. Walters, he was the initiator of the first edition of The European Garden Flora and is responsible for two spin-offs, The Orchid Book (1992) and Manual of North European Garden Plants (2001). Sabina Knees is a taxonomist at the Royal Botanic Garden Edinburgh and although now working on plants of the Middle East, particularly the Flora of the Arabian Peninsula and Socotra, she spent over 20 years working as a horticultural taxonomist for the Royal Horticultural Society and the Royal Botanic Garden Edinburgh and is a founder member of the Horticultural Taxonomy Group (HORTAX).
    [Show full text]
  • For Peer Review
    Journal of the Science of Food and Agriculture Impact assessment of mechanical harvest on fruit physiology and consequences on oil physicochemical and sensorial quality from ‘Manzanilla de Sevilla’ and ‘Manzanilla Cacereña’ super-high density hedgerows. A For Peerpreliminary Review study Journal: Journal of the Science of Food and Agriculture Manuscript ID: JSFA-14-1781.R1 Wiley - Manuscript type: Research Article Date Submitted by the Author: 15-Oct-2014 Complete List of Authors: Morales-Sillero, Ana; Universidad de Sevilla, Departamento de Ciencias Agroforestales Garcia, Jose; Instituto de la Grasa, Fisiología y Tecnología de Productos Vegetales Olea europaea L, SHD orchards, grape straddle harvester, ethylene Key Words: production, oxidative stability, phenols [email protected] Page 1 of 30 Journal of the Science of Food and Agriculture 1 2 3 Impact assessment of mechanical harvest on fruit physiology and consequences on 4 5 oil physicochemical and sensorial quality from ‘Manzanilla de Sevilla’ and 6 7 ‘Manzanilla Cacereña’ super-high density hedgerows. A preliminary study 8 9 10 11 12 Running title: Impact of grape harvester on fruit physiology and oil quality from 13 14 SHD olive hedgerows 15 16 17 18 Ana Morales-Sillero,Fora José MªPeer García b* Review 19 20 * b 21 Correspondence to: José Mª García Dpto. Fisiología y Tecnología de Productos 22 23 Vegetales. Instituto de la Grasa (CSIC). Avda. Padre García Tejero 4, 41012 Sevilla, 24 25 Spain. E-mai:l [email protected] 26 27 28 29 a 30 Dpto. Ciencias Agroforestales, ETSIA, Universidad de Sevilla, Carretera de Utrera, 31 32 km 1, 41013 Sevilla, Spain. 33 34 b Dpto.
    [Show full text]
  • Unveiling a Unique Genetic Diversity of Cultivated Coffea Arabica L. in Its Main Domestication Center: Yemen
    Genet Resour Crop Evol https://doi.org/10.1007/s10722-021-01139-y (0123456789().,-volV)( 0123456789().,-volV) RESEARCH ARTICLE Unveiling a unique genetic diversity of cultivated Coffea arabica L. in its main domestication center: Yemen C. Montagnon . A. Mahyoub . W. Solano . F. Sheibani Received: 21 July 2020 / Accepted: 15 January 2021 Ó The Author(s) 2021 Abstract Whilst it is established that almost all varieties and included no Yemen samples. Two other cultivated coffee (Coffea arabica L.) varieties origi- clusters were made up of worldwide varieties and nated in Yemen after some coffee seeds were intro- Yemen samples. We named these the Yemen Typica- duced into Yemen from neighboring Ethiopia, the Bourbon cluster and the Yemen SL-34 cluster. Finally, actual coffee genetic diversity in Yemen and its we observed one cluster that was unique to Yemen and significance to the coffee world had never been was not related to any known cultivated varieties and explored. We observed five genetic clusters. The first not even to any known Ethiopian accession: we name cluster, which we named the Ethiopian-Only (EO) this cluster the New-Yemen cluster. We discuss the cluster, was made up exclusively of the Ethiopian consequences of these findings and their potential to accessions. This cluster was clearly separated from the pave the way for further comprehensive genetic Yemen and cultivated varieties clusters, hence con- improvement projects for the identification of major firming the genetic distance between wild Ethiopian resilience/adaptation and cup quality genes that have accessions and coffee cultivated varieties around the been shaped through the domestication process of C.
    [Show full text]
  • Recognition and Management of Diseases of Woody Ornamentals in the Landscape
    Dr. Sharon M. Douglas The Connecticut Agricultural Experiment Station 123 Huntington Street P. O. Box 1106 New Haven, CT 06504 Phone: (203)974-8601 Fax: (203)974-8502 Email: [email protected] RECOGNITION AND MANAGEMENT OF DISEASES OF WOODY ORNAMENTALS IN THE LANDSCAPE While problems of woody ornamentals are frequently associated with living factors, problems attributed to cultural and environmental factors are also common and are becoming increasingly more prevalent given the weather extremes of the past few years and as populations increase and urbanization continues. In many cases there is little that can be done about these problems once they are observed so prevention is usually the best approach. I. STEPS FOR DISEASE PREVENTION AND CONTROL: A. Diagnosis- knowing what you're trying to control; accurate diagnosis is critical for successful disease control; B. Assessing the Severity of the Problem- 1. Nature of pest problem- type of disease, i.e., root vs. foliar, systemic vs. localized 2. Level of disease- loss threshold, i.e., amount of disease, number of years with problem; number of trees affected C. Control Options- 1. Culture: this includes cultural methods that modify the plant's growing conditions; maintaining optimum plant vigor by proper site selection, proper watering and fertilizing; avoiding mechanical injuries and soil compaction; appropriately timed pruning and transplanting, adequate spacing between plants, improving tilth and pH of the soil; 2. Sanitation: this involves the use of vigorous, healthy, disease-free cuttings or plants, pruning of affected plant parts; raking and removing affected plant parts such as fallen leaves; disinfesting tools such as pruning shears and spades; 3.
    [Show full text]
  • Kentucky Bluegrass, Poa Pratensis L. Tom Cook Oregon State University
    Kentucky Bluegrass, Poa pratensis L. Tom Cook Oregon State University Introduction: Kentucky bluegrass has long been the most important cool season grass planted as turf. It has been used for lawns, athletic fields, golf course fairways, tees, and rough, and been widely planted for pastures in regions where it thrives. Kentucky bluegrass is the grass that made sod production possible in northern climates. In most peoples mind this is the grass that is turf. Because it is adapted to such a wide range climates, you might think it is a native species, but like many of our other grasses Kentucky bluegrass arrived in North America along with traders and settlers from Europe. Botanical Characteristics and Identification: Kentucky bluegrass is a sod forming rhizomatous cool season (C-3) grass that is adapted to climates with warm summers and cold winters. It has a so called perennial root system in which maximum root system development occurs after one to two years from planting. While there is an annual flush of new roots in spring many of last years roots remain alive and functioning. Because many roots live through the winter, it is not unusual to dig up a patch of healthy bluegrass and observe that most of the roots appear brown. Genetically Kentucky bluegrass is quite variable with chromosome numbers ranging from 2n=28 to 154. It does hybridize but generally produces seed apomictically. Apomixis is a form of asexual reproduction where seed forms from cells in the ovary wall of the flowers so the progeny are identical to the parent plant.
    [Show full text]
  • Genes for Wheat Stem Rust Resistance Postulated in German Cultivars and Their Efficacy in Seedling and Adult-Plant Field Tests
    Received: 25 July 2017 | Accepted: 23 February 2018 DOI: 10.1111/pbr.12591 ORIGINAL ARTICLE Genes for wheat stem rust resistance postulated in German cultivars and their efficacy in seedling and adult-plant field tests Kerstin Flath1 | Thomas Miedaner2 | Pablo D. Olivera3 | Matthew N. Rouse3,4 | Yue Jin3,4 1Institute for Plant Protection in Field Crops and Grassland, Julius-Kuehn-Institut Abstract (JKI), Kleinmachnow, Germany Stem rust of wheat (caused by Puccinia graminis f.sp. tritici) gained high international 2State Plant Breeding Institute, University attention in the last two decades, but does not occur regularly in Germany. Moti- of Hohenheim, Stuttgart, Germany 3Department of Plant Pathology, University vated by a regional epidemic in 2013, we analysed 15 spring and 82 winter wheat of Minnesota, St. Paul, MN, USA cultivars registered in Germany for their resistance to stem rust at the seedling 4 USDA-ARS Cereal Disease Laboratory, stage and tested 79 of these winter wheat cultivars at the adult-plant stage. A total St. Paul, MN, USA of five seedling stem rust resistance genes were postulated: Sr38 occurred most fre- Correspondence quently (n = 29), followed by Sr31 (n = 11) and Sr24 (n = 8). Sr7a and Sr8a occurred Thomas Miedaner, State Plant Breeding Institute, University of Hohenheim, Stuttgart, only in two spring wheat genotypes each. Four cultivars had effective seedling resis- Germany. tance to all races evaluated that could only be explained by postulating additional Email: [email protected] resistance genes (‘Hyland’, ‘Pilgrim PZO’, ‘Tybalt’) or unidentified gene(s) (‘Memory’). € Communicated by: H. Burstmayr The three winter wheat cultivars (‘Hyland’‘Memory’ and ‘Pilgrim PZO’) were also highly resistant at the adult-plant stage; ‘Tybalt’ was not tested.
    [Show full text]
  • Basis for Designing a Tool to Evaluate New Cultivars Christophe Lecomte, Lorène Prost, Marianne Cerf, Jean-Marc Meynard
    Basis for designing a tool to evaluate new cultivars Christophe Lecomte, Lorène Prost, Marianne Cerf, Jean-Marc Meynard To cite this version: Christophe Lecomte, Lorène Prost, Marianne Cerf, Jean-Marc Meynard. Basis for designing a tool to evaluate new cultivars. Agronomy for Sustainable Development, Springer Verlag/EDP Sci- ences/INRA, 2010, 30 (3), pp.667-677. 10.1051/agro/2009042. hal-00886474 HAL Id: hal-00886474 https://hal.archives-ouvertes.fr/hal-00886474 Submitted on 1 Jan 2010 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Copyright Agron. Sustain. Dev. 30 (2010) 667–677 Available online at: c INRA, EDP Sciences, 2010 www.agronomy-journal.org DOI: 10.1051/agro/2009042 for Sustainable Development Research article Basis for designing a tool to evaluate new cultivars Christophe Lecomte1*,LorèneProst2, Marianne Cerf2, Jean-Marc Meynard3 1 INRA, UMRLEG, 21065 Dijon Cedex, France 2 INRA, UMR 1048 SAD-APT, 78850 Thiverval-Grignon, France 3 INRA, Département SAD, 78850 Thiverval-Grignon, France (Accepted 1 October 2009) Abstract – Seed scientists and decision-makers must evaluate the behaviour of new cultivars. They are thus always seeking improvements in multi-parameter trials.
    [Show full text]