Genetic Shift Of Seedling Fluorescence In Ryegrass Over Seed Increase Generations,
2024
Oregon State University
Genetic Shift Of Seedling Fluorescence In Ryegrass Over Seed Increase Generations, D J. Floyd, R E. Barker
IGC Proceedings (1977-2023)
Seedling root fluorescence has generally been used to discriminate perennial ryegrass (Lolium perenne L.) from Italian ryegrass (L. multiflorum Lam.). The trait, however, has introgressed between the two species and breeders now determine fluorescence levels for new ryegrass cultivars. Our objective was to ascertain genetic change for fluorescence expression during generations of seed multiplication. Four ryegrass populations, differing in fluorescence levels, were increased three generations at each of three Oregon locations. Fluorescence levels were measured for each generation cycle at each location. Variation was present for fluorescence among locations within populations and for seed production generation within locations. One …
Undersowing Creeping Red Fescue (Festuca Rubra Var Rubra) For Seed Production In Winter And Spring Wheat Cover Crops,
2024
The Norwegian Crop Research Institute
Undersowing Creeping Red Fescue (Festuca Rubra Var Rubra) For Seed Production In Winter And Spring Wheat Cover Crops, T S. Aamlid
IGC Proceedings (1977-2023)
Sowing red fescue (Festuca rubra L.) seed crops in autumn without cover crop or in winter wheat sown at two sowing rates (100 vs. 200 kg ha-1) and two row spacings (13 vs. 26 cm) was compared to spring establishment without cover crop or in spring wheat at the same sowing rates and row spacings. Yields of winter and spring wheat averaged 5190 and 4106 kg ha-1, respectively. First years’ seed yields of red fescue were, on average, 7% higher after spring- than after autumn sowing; with cover crop this can be explained by the taller plants of winter …
Towards A Model For Nitrogen Application To Seed Crops Of Timothy (Phleum Pratense),
2024
The Norwegian Crop Research Institute
Towards A Model For Nitrogen Application To Seed Crops Of Timothy (Phleum Pratense), T S. Aamlid
IGC Proceedings (1977-2023)
In seed production experiments with timothy (Phleum pratense L.) split application of 25 kg N ha-1 as early as possible in spring (mean date 17 April) plus 50 kg ha-1 at the start of tiller elongation (mean date 19 May) increased seed yields compared to only one application of 75 or 100 kg N ha-1 in mid-May. On plots not receiving nitrogen until mid-May, the seed yield increase resulting from an additional application of 25 kg N ha-1 at heading (mean date 19 June) could be related to the ratio between measured and critical per cent nitrogen in plant …
Manitoba’S Forage/Livestock Technology Transfer System,
2024
Manitoba Department of Agriculture, Manitoba Forage Council
Manitoba’S Forage/Livestock Technology Transfer System, A F. Stewart, K H. Ominski
IGC Proceedings (1977-2023)
There have been significant advances in forage/livestock technology systems in Western Canada in the past fifty years, including the introduction of new forage species and varieties, as well as new advances in harvesting, storage and cattle production systems. Adoption of new technology in Manitoba has been expedited by an extension system that involves all sectors of the agricultural community from primary producers and researchers to extension personnel and members of the agribusiness community all of whom are working together to find solutions to the local and regional challenges facing forage and livestock producers.
Manitoba Green Gold- An Extension Project Linking High Quality Hay With High Profits,
2024
Manitoba Agriculture
Manitoba Green Gold- An Extension Project Linking High Quality Hay With High Profits, Dennis Joosse
IGC Proceedings (1977-2023)
Improving the quality of harvested forage is seen as an important step in improving the productivity of Manitoba’s beef, dairy and cash hay operations. One of the most important determinants of forage quality is stage of maturity when harvested. Timely cutting is particularly important during first cut because it represents a major portion of the total harvest, and forage quality drops rapidly during this period.
An Interactive Approach To Technology Transfer In A Development Project - A Case Study,
2024
Massey University
An Interactive Approach To Technology Transfer In A Development Project - A Case Study, A.C P. Chu, P.N P. Matthews, J Hodgson
IGC Proceedings (1977-2023)
The paper covers technology transfer in the United Nations Development Programme funded Agro-grassland Systems Development Project in Guizhou Province, China, which ran from 1989 to 1994 and involved the development of pasture based smallholder livestock systems at three environmentally contrasting sites. The project involved the participation of management, technical staff and smallholder farmers at the local level with outside support from the Gansu Grassland Ecological Research Institute, Gansu Province, China and Massey University, New Zealand. A feature of the project design was the retention of project management at the local level. Interactive training programmes were conducted in New Zealand and …
Will It Rain? Managing El Nino Risks With The Australian Rainman Computer Package,
2024
Queensland Department of Primary Industries
Will It Rain? Managing El Nino Risks With The Australian Rainman Computer Package, N M. Clarkson, J F. Clewett, D T. Owens, D G. Abrecht
IGC Proceedings (1977-2023)
The AUSTRALIAN RAINMAN computer package helps the management of climatic risks associated with the ENSO (El Niño/ Southern Oscillation) phenomenon in the southern Pacific region. The package uses historical rainfall and Southern Oscillation Index (SOI) records to provide a suite of analyses including user-defined seasonal forecasts. Examples are given of ENSO effects on precipitation in Australia and some other countries including Canada. The SOI has a multiplier effect on rain-dependent processes such as plant growth and stream flow, and its use provides valuable support for many agricultural and pastoral decisions. AUSTRALIAN RAINMAN is commercially available in Australia.
Night Penning As A Management Technique For Both Pasture Development And Pasture Improvement For Small Holders In Southern China,
2024
Gansu Grassland Ecological Research Institute,
Night Penning As A Management Technique For Both Pasture Development And Pasture Improvement For Small Holders In Southern China, W L. Jiang, P.N P. Matthews, C B. Luo, J Z. Ren, J Hodgson, A.C P. Chu
IGC Proceedings (1977-2023)
A series of experiments conducted at Weining, Guizhou Province, China demonstrated night penning to be a successful technique for the improvement of native pastures through enhancement of soil fertility and change in the botanical composition of the sward. The best overall results were achieved with a penning intensity of 7 to 8 sheep nights per m- with pasture establishment most successful from May to September. Ryegrass (Lolium perenne), cocksfoot (Dactylis glomerata), Yorkshire fog (Holcus lanatus) and white clover (Trifolium repens) were the most suitable for establishment. A number of strategies to increase …
An Interactive Multimedia Educational Program For Pasture Management,
2024
University of Adelaide
An Interactive Multimedia Educational Program For Pasture Management, P G. Tow, Corina Mulholland, P Marriott, D A. Shelton
IGC Proceedings (1977-2023)
Developing abilities in pasture management decision making is important for all students of pasture agronomy, whether they plan to work in management, extension or research. Such problem-based learning fosters an ability to understand and apply principles, and to integrate and use information from various sources. A computerassisted, problem based, multimedia educational programme, “Pasture Management” has been developed to complement limited field exercises in pasture assessment and management. It comprises illustrated case studies and supporting information. Students interact with the programme by choosing alternative management options, calling up images and text as required to assist them. The programme supplies feedback for …
Michigan Grazier Networks, An Educational Outreach Of The Michigan Hay And Grazing Council,
2024
Michigan State University
Michigan Grazier Networks, An Educational Outreach Of The Michigan Hay And Grazing Council, R H. Leep, T Miller, H Liss
IGC Proceedings (1977-2023)
The objective of this educational program was to create a farmer to farmer learning process which would facilitate educational programming in grazing land management for new and intermediate experienced graziers in Michigan. An evaluation of the 1995 educational experiences of program participants was conducted in December, 1995, utilizing an assessment program called Optionfinder.
Ecological Site Database- Basic Site Information For Resource Analysis And Decision Making,
2024
USDA, NRCS
Ecological Site Database- Basic Site Information For Resource Analysis And Decision Making, S L. Ekblad, J R. Carlson, W R. Oaks
IGC Proceedings (1977-2023)
The USDA Natural Resource Conservation Service (NRCS) describes and interprets range, native pasture, grazable forest, pasture, and hayland with ecological site descriptions and forage suitability groups. Ecological sites have evolved from agency range and woodland site descriptions, and have integrated alternate and more recent concepts with the traditional succession-retrogression model for site classification and interpretation. Ecological site interpretations are based on vegetation sampling by weight and composition, and other field data collection. Sample data is recorded and managed in the Ecological Site Information System (ESIS) and is analyzed to identify and develop site and suitability group descriptions. ESIS provides data …
Development Of Forage Components Through Farmer Participatory Research,
2024
CIAT
Development Of Forage Components Through Farmer Participatory Research, F G. Gabunada Jr, W W. Stur, P M. Horne
IGC Proceedings (1977-2023)
This paper describes farmer participatory research activities aimed at developing appropriate forage technologies with smallholders in Southeast Asia. Farmers are actively involved from the early stages, working as equal partners with researchers. This has led to a better understanding of selected farming systems, identification of technologies that have potential for testing by farmers, and better understanding of the criteria farmers consider important for forages to be useful within those farming systems.
Validation Of Arachis Pintoi As A Forage Legume In Commercial Dual Purpose Cattle Farms In Forest Margins Of Colombia, C E. Lascano, G A. Ruiz, J Valasquez, J Rozo
IGC Proceedings (1977-2023)
An on-farm pilot project was initiated in the Andean piedmont of the Amazon basin in Caquetá, Colombia to determine the contribution of the forage peanut Arachis pintoi (CIAT 17434) introduced in degraded pastures to animal production and soil improvement. Early results show that milk production in dual purpose cattle farms can be increased by 20% with A. pintoi-based pastures. However, to enhance adoption of the legume by farmers there is a need to make adjustments on pasture management and assure supply of high quality seed in the region.
Australian And Us Experiences With Transfer Of Rangeland Improvement Technologies: A Comparative Analysis,
2024
Texas A&M University
Australian And Us Experiences With Transfer Of Rangeland Improvement Technologies: A Comparative Analysis, A P. Thurow, N Macleod, J R. Conner
IGC Proceedings (1977-2023)
American and Australian range economists work in tandem with range ecologists and management specialists to develop and analyze strategies for technology transfer. Historically, this process has developed around a model aimed at communication with a narrow target group (ranchers) with easily-defined and homogeneous goals (continuously improving income). In accord with this traditional model of technology transfer, the focus of range economists’ inquiries was once to assess the cost-effectiveness of grazing improvement technologies (Conner, 1985). It is a relatively recent phenomenon that both American and Australian range technology transfer agents are encountering an increasingly broad social and ecological agenda. Ranchers recognize …
Networking Advisory Groups And Electronic Media To Transfer Information On Forage Management,
2024
University of Florida
Networking Advisory Groups And Electronic Media To Transfer Information On Forage Management, J J. Mullahey, R M. Muchovej, K U. Hill
IGC Proceedings (1977-2023)
The objective of this paper is to discuss a coordinated multi-county extension program in forages through the involvement of a beef/ forage advisory committee and technology transfer or information dissemination using electronic media.
Farmer Participation In The Development And Implementation Of A New Technology: Introduction Of Lucerne (Medicago Sativa L.), A Perennial Legume, Into South-West Western Australia,
2024
Agriculture Western Australia
Farmer Participation In The Development And Implementation Of A New Technology: Introduction Of Lucerne (Medicago Sativa L.), A Perennial Legume, Into South-West Western Australia, L J. Blacklow, P Cocks
IGC Proceedings (1977-2023)
Australia since its demise due to insect attack in the 1970s. With new insect resistant varieties lucerne is once again becoming a viable pasture option for farmers. There is however, a slow rate of adoption of lucerne for a number of social and economic factors. The main limitations to the adoption of lucerne by farmers are past negative experience, farm systems dominated by annual pastures, changing wool and wheat commodity prices and perceived establishment and management difficulties. To overcome these socio-economic limitations a Model of Lucerne Adoption was developed in which the target group for the technology, the farmer, took …
Case Studies- A Useful Tool For Integrating Socio-Economic Data Into Grazing Systems Research,
2024
CSIRO
Case Studies- A Useful Tool For Integrating Socio-Economic Data Into Grazing Systems Research, N D. Macleod
IGC Proceedings (1977-2023)
Grazing systems research and development (R&D) projects can provide important information on which to base management principles to integrate conservation management into grazing production systems. However, the adoption of these principles into practice remains largely unfulfilled. Most grazing experiments give limited attention to the socio-economic context of pastoral management. The paper suggests that one way of incorporating R&D findings and presenting them within a context that is more acceptable to decision-makers is via a case study approach. That is, use the considerable communication potential of the approach.
The Punctuated Arena Model- A New Approach To Tackling Technology Transfer Failure,
2024
CSIRO
The Punctuated Arena Model- A New Approach To Tackling Technology Transfer Failure, N D. Macleod, A D. Shulman
IGC Proceedings (1977-2023)
Valuation of the worth of research and development activities is increasingly shifting from outputs to outcomes. The technology transfer record of agricultural R&D focused on pastures and resource management remains generally poor. Participatory R&D approaches have been developed and promoted to overcome this, but these also have performance problems. Based on the authors’ experience with R&D and communication management a Punctuated Arena Model has been developed which is argued to offer scope for improving technology transfer outcomes.
Agri-21: Sustainable Farming Demonstration,
2024
University of Kentucky
Agri-21: Sustainable Farming Demonstration, M Rasnake, W R. Burris, G D. Lacefield
IGC Proceedings (1977-2023)
On-farm demonstrations were established in 1993 to demonstrate the technology required to conduct a profitable and sustainable farming operation into the 21st Century. These were part of a cooperative program between the Tennessee Valley Authority (TVA) and Land Grant Universities in the seven states of the TVA region. Four demonstrations were established in Kentucky. A beef farm in west Kentucky will be used to illustrate the project. This farm improved crop and livestock management, record keeping and environmental stewardship. Their goal is to increase farm profitability while improving the soil and water resources.
Extension Agronomist Perceptions Regarding Clover Use In The Usa,
2024
Auburn University
Extension Agronomist Perceptions Regarding Clover Use In The Usa, D M. Ball, G D. Lacefield
IGC Proceedings (1977-2023)
Recent enhancement of economic incentives for using legumes in forage/livestock systems seems likely to result in greater usage of clovers in the USA. To determine attitudes regarding clovers, a questionnaire was sent to forage crop agronomists having Extension assignments. Responses to most questions varied greatly, particularly among geographic regions. Poor grazing management was identified as the primary concern or problem associated with clovers, followed by poor persistence, and a lack of recognition of the benefits. Improved forage quality was ranked as the most important benefit, followed by better distribution of pasture growth, and biological nitrogen fixation. The importance of benefits …
