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Nomenclatura Unesco > (31) Ciencias Agrarias > (3107) Horticultura
(3107.01) Producción de cultivos (3107.02) Técnicas de cultivo
(3107.03) Floricultura (3107.04) Fruticultura
(3107.05) Hibridación (3107.06) Hortalizas
(3107.99) Otros (especificar)

Mostrando recursos 1 - 20 de 4,013

1. [O21] Writing on the walls: helping students grasp scientific terminology - Ron Fryer; Margaret Somerville; Jill Raggett; Lynn Schwartz
For over a hundred years Writtle College has specialised in training and education for the land-based industries, principally agriculture and horticulture. In recent years the College’s course portfolio has been extended to include degrees in interior and garden design, landscape studies, rural resource management, leisure management, and animal and

2. Selection and Care of Ornamental Grasses - For Northern Nevada; Kerrie B. Badertscher; Horticulture Specialist; Western Area
The term "ornamental grass " refers not only to true grasses (Graminae) but also to close relatives of grasses and grass-like plants. Many plants that we think of as grasses are actually sedges (Cyperacae) and rushes (Juncaceae). Ornamental grasses are valuable in the landscape because they provide seasonal interest, add color and texture to a perennial border, and provide valuable wildlife habitat. It is important to understand the physical and cultural attributes of ornamental grasses to best incorporate them into the garden. Selection of Ornamental Grass Ornamental grasses are typically selected for their inflorescence, or flower, and for their foliage...

3. A SHORT ROUTE TO GENE DISCOVERY IN TREES: CONTROL OF STATURE THROUGH GIBBERELLIN CATABOLISM - Victor B. Busov; Richard Meilan; Steven H. Strauss
Manipulation of plant stature has long been a major goal in agronomy, horticulture, and silviculture. Dwarf and semi-dwarf “Green Revolution ” varieties in wheat and rice contributed to dramatic increases in cereal crop yields. The new varieties were shorter, more resistant to damage by wind and rain (lodging), and responded better to nitrogen fertilizers by increasing grain yield rather than straw biomass. Dwarfing in fruit trees has allowed dense field cultivation, facilitated mechanized maintenance, increased efficiency of fruit collection, and allowed more precise pesticide application, reducing spray drift1. Most of the dwarfing rootstocks induced precocious and profuse flowering. Dwarf ornamental...

4. POLICY HARMONIZATION, CONVERGENCE, AND COMPATIBILITY ISSUES IN NORTH AMERICAN HORTICULTURE - Gary F. Fairchild; Timothy G. Taylor; Thomas I. Wahl
The past decade has brought trade liberalization out of the shadow of debate among economists and into the glare of public opinion. In addition to the completion of the Uruguay Round of GATT and the creation of the World Trade Organization (WTO) at the international level, the 1990s have witnessed both the initiation and the strengthening of

5. 1State Policies, Praxies and Land-use in the Chittagong Hill Tracts of Bangladesh - Golam Rasul; Gopal B. Thapa
Degradation of land and forest owing to unsustainable land-use practices, locally known as jhum, an extensive land-use characterized by frequent shifting of plot, has become a serious concern in Chittagong Hill Tracts (CHT) of Bangladesh. Polices and programs aiming at promoting alternative land use practices have been failed largely to achieve the desired goal. Conventionally, indigenous people are blamed as being conservative and not adopting alternative land use systems overlooking the constraints in adopting alternative land use practices. This paper questioned the conventional explanation and offers an alternative explanation by examining the state policies and associated effect on land-use in...

6. The Growing Importance of the Environmental Horticulture Industry in the Agricultural Economy of the Northeastern United States - Martin Shields; Fern K. Willits
This study examines several aspects of the Environmental Horticulture Industry (EHI) in the northeastern United States. First, the EHI is compared to other agricultural sectors in the region. The sector’s growth is found to far outpace growth in traditionally important crops and commodities. The study then takes a closer look at the EHI in Pennsylvania, utilizing survey data and the IMPLAN input-output model to estimate the overall economic contributions of the industry to the state’s economy. Results suggest that the EHI generates nearly $3.3 billion in value-added and more than 107,000 state jobs through direct, indirect, and induced effects. Finally,...

7. Review of Agricultural Economics—Volume 30, Number 3—Pages 469–479 Small Holder Incomes, Food Safety and Producing, and Marketing China’s Fruit∗ - Jikun Huang; Yunhua Wu; Huayong Zhi; Scott Rozelle
One of the most wrenching changes in China’s agricultural economy overthe past decade and a half has been the rise of horticulture in the cropping sector. Between 1990 and 2006 cash crops have risen from 35 % of sown area to 47 % (NSBC). Fruit and vegetable area are responsible for most of the growth. Between 1990 and 2005 vegetable sown area nearly tripled, increasing from 6.34 million hectares to 18.22 million hectares. Fruit area also nearly doubled, expanding from 5.32 million hectares to 10.12 million hectares during this time period. Whether a cause or an effect or whether they...

8. Socio-economic considerations for pre-screening of live animal imports. Short Paper presented at Preventing Biological Invasions - Jamie K. Reaser; Senior Science; Policy Advisor; Pet Industry; Joint Advisory
Live animals are intentionally imported for a variety of purposes (Box 1), and may also be unintentionally imported as “hitchhikers ” on commodities (e.g., horticulture), in packaging (e.g., solid wood packaging), shipping substrates (e.g.,

9. Frost Prediction using a Combinational Model of Supervised and Unsupervised Neural Networks for Crop Management in Vineyards - M. Jarur; M. Trujillo; A Ghobakhlou
Frost prediction models could contribute significantly towards the successful growth and production of quality crop yield in horticulture, especially in precision viticulture where the benefits are significant because frost damage is well-known for its potential leading to total harvest failure, with a follow-on regional or national economic impact outcome. This reality has increased interest among scientists and growers to advance their knowledge in relation to the inter-dependencies and possible correlations between meso-micro climate variables and associated plant and soil condition values. Included in this array of variables there are also site specific environmental factors such as pesticide saturation and carbon...

10. www.elsevier.com/locate/rser - Bioresource Status In Karnataka; T. V. Ramach; Ra A; G. Kamakshi A; B. V. Shruthi A
Energy is a vital component of any society playing a pivotal role in the development. Post oil crises shifted the focus of energy planners towards renewable resources and energy con-servation. Biomass is one such renewable, which accounts for nearly 33 % of a developing country’s energy needs. In India, it meets about 75 % of the rural energy needs. In Karna-taka, non-commercial energy sources like firewood, agricultural residues, charcoal and cow dung account for 53.2%. The energy released by the reaction of organic carbon (of bio-resources) with oxygen is referred to as bioenergy. Bioresource availability is highly diversi-fied and it...

11. Grove-hill : an horticultural sketch / - Lettsom, John Coakley, 1744-1815.
Authority for author's name: Journal of horticulture, cottage gardener and country gentleman. v. 32, n.s. (v. 57, old ser.) 1877, p. 385.

12. A note on the analysis of female headed households in developing countries, The Technical Bulletin of the Faculty of Horticulture 54 - Nobuhiko Fuwa
In this paper, we will attempt to clarify some issues commonly found in recent discussions surrounding female headship analysis, in general, and will also discuss recent literature on the relationship between female headship and poverty, in particular. The issues addressed here include: the confusion between female headship analysis and gender analysis of poverty; the existence of alternative definitions of household headship; and the existence of different analytical purposes of using the concept of household headship and the need for using appropriate headship definitions for each purpose. 1

13. NUTRIENT USE EFFICIENCY IN UPLAND CROPPING SYSTEMS OF ASIA - Rolf Härdter; Thomas Fairhurst
Typical land use systems on Asian uplands are studied with regard to productivity and nutrient use efficiency. These comprise annual cereal based rotations, plantation crops and intensive horticulture. Once the key limiting factor, e.g. P deficiency is corrected, rather intensive cultivation can be achieved, whilst continuously providing the adequate amounts of nutrients. To assess the efficiency of nutrient use several indicators, e.g. partial factor productivity, agronomic, recovery, physiological, internal and economic efficiency are introduced and used on examples with the most important cropping systems. The preliminary observation shows that there is a trend to lower efficiency with increasing cultivation intensity...

14. African Olive (Olea europaea subsp. cuspidata) as an environmental weed in eastern Australia: a review - Peter Cuneo; Michelle R. Leishman
introduced into Australia for horticulture in the mid 19th century. In recent decades, African Olive has become an aggressive woody weed, capable of forming a dense and permanent canopy in a wide range of vegetation types in south-west Sydney and beyond. Characteristics of African Olive invasion in south-west Sydney, and its seed dispersal by frugivorous birds are consistent with experience from Norfolk Island and Hawaii. We use records and aerial photographs from Mount Annan Botanic Garden and other bushland areas in south-west Sydney to describe the invasion stages and impacts of African Olive. The capacity for African Olive to establish...

15. Identification, Livestock Toxicity and Control of Hoary Alyssum in Christmas Tree - Steven A. Gower; Diagnostic Services; Robert J. Richardson; Dept Of Horticulture
incana) is an invasive weed in the mustard (Brassicaceae) family. This plant has invaded Christmas tree plantations, hayfields, pas-tures and other disturbed, non-managed lands in Michigan. Introduced from Europe, hoary alyssum is capa-ble of forming dense stands and outcompeting native vegeta-tion and forages. The range of hoary alyssum in North America is across southern Canada from coast to coast and south to Virginia, Tennessee, New Mexico and Nevada. Hoary alyssum

16. FFA STATUS OF SELECTEDAGRICULTURAL EDUCATION ENROLLEES IN OKLAHOMA - Julie Baggett-harlin; William G. Weeks
Scope and Method of Study: The purpose of this study was to describe traditional and non-traditional Agricultural Education enrollees and the degree to which these groups participate in the Agricultural Education program. Participants in the study included 393 junior and senior agricultural education enrollees at selected secondary high schools in Oklahoma. Selected schools contained multiple teachers with horticulture or natural resources being taught. Non-traditional enrollees were defined as those students who enrolled in an Agricultural Education course for the first time as a junior or senior while traditional enrollees were those students who had previous years in Agricultural Education. Students...

17. The U.S. Economic Impact of the - Steven R. Miller; Abdullahi Abdulkadri
The IR-4 Ornamental Horticulture Project was founded in 1977 to provide agrichemical registration support for non-food specialty crop growers that include ornamental horticulture plants grown in greenhouses and nurseries, landscape plantings, Christmas tree farms, sod farms and interiorscapes. This program directly contributes to the health of this industry by providing necessary research and EPA registration support for an industry that otherwise would have few resources to address agrichemical usage and research tools to form enlightened management decisions for controlling pests in an efficient and ecologically friendly manner. Agrichemical companies bear a substantial cost for the research necessary to gain product/application...

18. Sylvie Ditcham, d.t.a. - Cultivars; Monique Audette Agr; Rootstocks; Monique Audette P. Ag
and Marie-Pierre Lamy, M.Sc., P.Ag. Centre de recherches en horticulture Université Laval

19. $rec.titulo
The relations between phenolic compounds and seed dormancy in Pistacia spp. M. _sfendiyaro_lu and E. Özeker Department of Horticulture

20. Symposium-in-Print: Ultraviolet Radiation and Terrestrial Ecosystems The Use of Wavelength-selective Plastic Cladding Materials in Horticulture: Understanding of Crop and Fungal Responses Through the Assessment of Biological Spectral Weighting Functions - Nigel D. Paul; Rob J. Jacobson; Anna Taylor; Jason J. Wargent; Jason P. Moore
Plant responses to light spectral quality can be exploited to deliver a range of agronomically desirable end points in protected crops. This can be achieved using plastics with specific spectral properties as crop covers. We have studied the responses of a range of crops to plastics that have either (a) increased transmission of UV compared with standard horticultural covers, (b) decreased transmission of UV or (c) increased the ratio of red (R) : far-red (FR) radiation. Both the UV-transparent and R: FR increasing films reduced leaf area and biomass, offering potential alternatives to chemical growth regulators. The UV-opaque film increased...

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