Digital Commons Network^™

Origin Of The World's Collection Of The Tropical Forage Legume Chamaecrista Rotundifolia, B C. Pengelly, B L. Maass, B D. Thomas, J B. Hacker

IGC Proceedings (1977-2023)

Round leaf cassia (Chamaecrista rotundifolia) cv. Wynn is an important legume in light textured soils in sub-tropical Queensland and forage evaluators in other regions of the tropics frequently wish to include in their evaluation trials this cultivar plus other accessions which represent the variation in the species. Provenance data of a world collection of 130 accessions of round leaf cassia were examined and a core set of 26 accessions selected.

Ecovar Development On The Northern Great Plains Of North America, K W. May, B Wark, B Coulman

IGC Proceedings (1977-2023)

The objective of this study was to develop sources of seed of native plant species to facilitate commercial seed production of ecovars suitable for revegetation and reclamation of disturbed land. An ecovar or ecological variety is native plant material derived from a composite of germplasm collected throughout the area of adaptation and that contains the natural genetic diversity of the species. Ecovars are currently being developed or proposed for 24 species of grass, legume and shrub species from the northern great plains. The research is conducted by scientists at nine research centres from six agencies in two countries. Seed from …

Evaluation Of Tropical And Subtropical Forage Grasses In The Northwest Region Of Rio Grande Do Sul, Brazil, R B. Medeiros, J M. Souza, J E. G. Zambra

IGC Proceedings (1977-2023)

A collection of 137 accessions of tropical and subtropical grasses of Pennisetum purpureum (53), Panicum maximum (10), Brachiaria spp. (9), Hemarthria altissima (19), Setaria spp. (11), Digitaria spp. (22), Cynodon spp.(7) and Paspalum spp. (6) was evaluated for frost tolerance (FT), dry matter yield per cut (DMYC), number of cuts (NC) and accumulated dry matter yield per year (ADMY). Crude protein content (CPC), leaf/stem ratio (L/S), pubescence (P) and animal preference under grazing (AP) were also recorded in 20 entries of in P. purpureum. Data exploration involved cluster analysis and ordination, revealing the most promising entries among and within …

Evaluation Under Grazing Of Two Festuca Arundinacia Cultivars With Contrasting Growth Patterns, A Mazzanti, M H. Wade

IGC Proceedings (1977-2023)

Two cultivars of Festuca arundinacea, one of temperate origin (El Palenque: PAL) with higher spring and summer growth and one of North African origin (Maris Kasba: MK) with higher winter growth, were compared under grazing during three years. They were grazed continuously, using a “put and take” system, by young steers and the swards maintained at equal heights, but which varied slightly between seasons. Daily live weight gain (LWG) and instantaneous stocking rate (ISR) were used to estimate productivity per unit area. There was no difference between cultivars in LWG, but consistent and important differences in ISR: MK carrying …

Relationships Among Some Lolium And Festuca Species, G Charmet, F Balfourier, C Ravel

IGC Proceedings (1977-2023)

Molecular markers were used to investigate phylogenetic relationships among the 8 species of ryegrass (Lolium) and 11 species of fescue (Festuca). Nine sequences of non-coding chloroplastic or mitochondrial DNA were amplified through PCR, then digested by 20 restriction enzymes. Restriction sites data were used to draw an UPGMA tree. The main features are: 1) a clear-cut distinction between fine-leaved fescues (subg. Festuca) and broad-leaved fescues (subg. Schedonorus), which include the ryegrasses. 2) among the broad-leaved fescues, meadow fescue and tall fescue are very closely related, which may indicate that they share a common maternal …

Breeding Reed Canarygrass As An Energy Or Fibre Crop By Using Local Collected Wild Populations, E Lindvall

IGC Proceedings (1977-2023)

Reed canarygrass (Phalaris arundinacea L.) has become interesting as an industrial crop in Sweden. The grass can be used as biofuel or fibre raw material for pulp production. New varieties have to be developed, with a quality different from forage varieties. High stem/ leaf-ratio, low content of ash and elements like silica, potassium and chlorine are important breeding goals. A Swedish project, aiming to evaluate local reed canarygrass populations, shows that there is some variation in these morphological and chemical characters which can be utilised in a breeding program.

Compared Productivity Of Local Ecotypes And Selected Cultivars Of Perennial Ryegrass (Lolium Perenne) In High Belgium, P Limbourg, Ph Lecomte

IGC Proceedings (1977-2023)

The objective of the trials was to compare the productivity of local ecotypes of perennial ryegrass (Lolium perenne) issued from old permanent pastures of High Belgium to that of adapted cultivars. During 3 consecutive years 2 local ecotypes were compared, in pure seedling at 2 different levels of nitrogenous manure, to 2 cultivars frequently used in seed mixtures for pastures. Results obtained using a cutting cycle wich simulated grazing did not reveal significant differences in terms of forage production or feeding value. These results explain the weak increase in forage production recorded in pastures renovated by reseeding as …

Salix Babylonica, A Traditional Fodder With Promising Potential, K Wangdi, W Roder, P Thinlay

IGC Proceedings (1977-2023)

In Bhutan, tree fodders are important for ruminant nutrition, especially during the dry winter season. Salix babylonica is the preferred species for temperate regions. Farmers above 2000 m plant it widely for fodder, fuel, and fencing. Lack of fodder availability during the dry season, and competition with other crops are its main disadvantages. Crude protein content of S. babylonica leaves declined from 25% in May to 11% in October. Voluntary intake was 78 and 85 g dry matter/W0.75 and live weight gain 330 and 64 g day-1 for growing bulls and sheep, respectively. Dry matter disappearance after 48 hours of …

Purification Of Eutrophic Hydro-Environments And The Utilization For New Biomass Forage Resources By Aquatic Plants In Asia, K Kabata, C Okamoto, B Montien-Art, T Nakazono, T Odahara, M Kikuchi

IGC Proceedings (1977-2023)

Water pollution, especially eutrophication, has become a serious world-wide problem in recent years. On the other hand, forage is in short supply during the dry season in Asia (especially in Southeast Asia). The purpose of this paper is to describe the development of new forage resources from among aquatic plants. In conclusion, it is suggested that three emergent plants (Zizania latifolia Turcz., Pontederia cordata L., Paspalum distichum L.) are useful as new forage species because of their absorptive ability for nitrogen and phosphorus from eutrophic water and their superior feeding value following ensiling.

Ecogeographic Assessment Of Mediterranean Environments For Targeting Legume Collections, S J. Bennett

IGC Proceedings (1977-2023)

The mediterranean area is the centre of diversity for many of the legume species of agricultural importance and their wild relatives. Ecogeographical assessments are a method of determining the areas within the mediterranean that are homologous with a particular area within southern Australia. Using Geographical Information Systems the distribution of legume species are mapped and related to other climatic and edaphic factors. Using this data it is possible to show which areas of the mediterranean have been well collected and where the edaphic requirements of a species can be found and therefore where to collect it. The detail of an …

Genetic Diversity As Affected By Selection Methodology In Native Grass Species, A T. Phan, S R. Smith

IGC Proceedings (1977-2023)

The utilization of native grasses for widespread plantings is limited by availability and cost of adapted seed sources. The objectives of this study were to assess the genetic diversity of locally collected blue grama (Bouteloua gracilis) and little bluestem (Schyzachyrium scoparium) populations and to examine potential shifts in genetic diversity using two selection methodologies. The ecovar method involved selection of the 20% highest seed yielding genotypes with equal representation from all populations while the ‘cultivar’ method involved selecting the highest 5% based on overall rank. Phenotypic variability was observed for morphological and reproductive traits between collected …

Physiological And Chemical Characteristics Of Five Cultivars Of Cynodon, C C.C. Gomide, L.R. De A. Rodrigues, T.De J.D. Rodrigues, R A. Reis, D A. Banzatto

IGC Proceedings (1977-2023)

The experiment was carried out at UNESP, Brazil, to evaluate five Cynodon cultivars: (Cynodon nlemfuensis Vanderyst cv “Tifton 68”, Cynodon spp. cv “Tifton 85”, Cynodon dactylon cv “Florakirk”, Cynodon nlemfuensis Vanderyst var. nlemfuensis cv “Florico” e Cynodon nlemfuensis Vanderyst var. nlemfuensis cv “Florona”). Plants were sampled once a week from 14 to 84 days of growth to study physiological characteristics and at 14-day intervals to study chemical characteristics. The following variables were studied: DM production, leaf/stem ratio, leaf weight/total dry matter ratio, relative growth rate, chlorophyll contents, leaf area, specific leaf area, LAI, and the contents of CP, NDF, …

Pasture Yield And Animal Performance From Aeschynomene Americana Cultivars Glenn And Lee, H G. Bishop, T B. Hilder, J J. Bushell

IGC Proceedings (1977-2023)

An on farm demonstration site was used to promote and compare the performance of the tropical legumes Glenn American jointvetch and Lee American jointvetch (Aeschynomene americana). Both legumes are widely sown in tropical Australia and are being increasingly sown in South-East Asian pasture projects. Glenn and Lee both grew well and persisted in grass/legume pastures over a 5 year period. Liveweight gain of steers, at a stocking rate of 1.5/ha, slightly favoured the Glenn pasture and gains of 0.49 kg/day for a 595 day period were achieved. Soil seed reserves were much higher under the annual Glenn than …

Diversity And Sustainability Of The Pek Savannas Of The Lao Pdr, V Phengvichith, J B. Hacker

IGC Proceedings (1977-2023)

The pek savannas of the Lao PDR occur in the southern half of the country and are relatively undeveloped. They are disjunct upland communities characterised by an understorey dominated by three species of Arundinaria, known locally as pek. The canopy varies from open forest to woodland. In relatively undisturbed communities, pek grows to c. 1.5 m tall, and is generally 99% pure, with tall growing grasses occurring infrequently. Higher levels of disturbance lead to invasion of shrub species and ingress of some lower-growing grasses and occasional legumes, some of which are palatable to livestock. Pek is palatable to livestock …

Research Programme To Improve The Utilization Of Home-Grown Forages In The Netherlands, A.M. Van Vuuren, A H. Bosma, G J. Kaspers, J.J. M.H. Ketelaars, E.N. Van Loo, H J.P. Marvin, H Valk, G.W.J. Van De Ven

IGC Proceedings (1977-2023)

In The Netherlands a research programme has been initiated by the Ministry of Agriculture, Nature Management and Fisheries to increase the proportion of high-quality home-grown forage in rations for dairy cows. This should result in a more sustainable dairy husbandry by improving the efficiency of utilization of nitrogen and phosphorus from home-grown forages (mainly grass and maize) on farm level. Research disciplines involved are plant breeding, forage harvesting and conservation and nutrition.

The European Ryegrass Core Collection: A Tool To Improve The Use Of Genetic Resources, N R. Sackville Hamilton, I D. Thomas, P Marum, L Ostrem, M Sevcíková, E Willner, F Balfourier, B Boller, V F. Chapurin, V Connolly, G Dologa, H Fritzen, T Van Hintum, L Horváth, W Majtkowski, V Negri, A Oliveira Prendes, D Reheul, D Shamov1, T Vaitsis

IGC Proceedings (1977-2023)

A core collection of 162 populations of ryegrass (Lolium perenne) native to 18 European countries, is being evaluated across Europe in a multi-country trial. Each participating country contributed the lesser of 10% or 25 accessions from its collection of native populations. The accessions are being grown at 18 sites in 17 countries. Quick, cheap protocols were developed for evaluation. Preliminary results are presented for performance during the first winter. Populations of northern origin showed uniformly low winter damage and low winter growth at all evaluation sites. Populations of Mediterranean origin were more affected by the environment used for …

Differences Between Adapted Populations Of Dactylis Glomerata L. In Argentina, A Andres, M Barufaldi

IGC Proceedings (1977-2023)

Nine adapted populations of orchardgrass (Dactylis glomerata L.) were collected from different grassland environments of Buenos Aires Province, Argentina, in order to investigate genetic differences between and within populations. Fifty plants per population were clonally propagated and transplanted as spaced-plant trial in a randomized design with three replicates. The results indicated large differences between and within populations for most attributes measured. Attributes related with the expression of foliar diseases and seed yield had the highest broad-sense heritability values. The results suggest that the genetic variation found in the adapted populations of orchardgrass has been mainly determined by the environmental …

The Plants Database: Providing Basic Plant Information, J S. Peterson, J F. Henson, W Oaks, J T. Kartesz

IGC Proceedings (1977-2023)

The PLANTS database provides basic plant information to the United States Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS), its clients, cooperators, and the general public via the World Wide Web (Fig. 1). The foundation of PLANTS is a taxonomic backbone (checklist) of the vascular and nonvascular plants of North America (north of Mexico) and United States territories in the Caribbean and Pacific regions. Attribute data are appended to this backbone pertaining to distribution, vegetative specifications, nativity, federal and state status, crop data, growth form, growth parameters, species abstracts, and images.

Forage Production Potential Of Poa Arachnifera Torr In Semi-Arid Climates, J C. Read, M A. Sanderson, G W. Evers, P W. Voigt, J A. Reinert

IGC Proceedings (1977-2023)

This study was undertaken to determine the forage potential of Texas bluegrass (Poa arachnifera Torr). Texas bluegrass is a perennial coolseason grass native to Kansas, Oklahoma, western Arkansas, and the central region of Texas, USA (Gould, 1975). Thirteen different accessions were established in 1988 at the Texas A&M University Centers at Dallas and Stephenville and tested for 2 years. Mean yields at Stephenville and Dallas were 3610 and 6022 kg ha-1. Two synthetic varieties (Syn-1 and Syn-2) were tested from 1990 to 1995 at four locations in Texas. Yields of Syn-1 was greater than Syn-2 whereas Syn- 2 provided …

More Aeschynomene Pasture Legumes For The Tropics And Sub-Tropics, H G. Bishop, B G. Cook, B H. English, J J. Bushell, T B. Hilder

IGC Proceedings (1977-2023)

Two cultivars of Aeschynomene villosa were released in Queensland in 1995. Cultivars ‘Reid’ (previously CPI 91209) and ‘Kretschmer’ (previously CPI 93621) are both native to Mexico and are the first cultivars of A. villosa to be released as pasture legumes. They will complement the three Aeschynomene cultivars already in use in tropical and sub-tropical northern and eastern Australia, namely cultivars ‘Glenn’ and ‘Lee’ (A. americana) and ‘Bargoo’ (A. falcata). Characteristics of Reid and Kretschmer jointvetch include, early seeding perennials within high seed yields, prostrate to semi-erect growth habit, adaptation to a wide range of soil types …

Ebola Distribution Prediction

Defensive Publications Series

Ebola virus disease (EVD) is a severe, fatal illness for human whose average fatality rate is around 50%. The current outbreak in West Africa is the largest and most complex one since the Ebola virus was first discovered in 1976.

In this outbreak, the most severely affected countries are Guinea, Sierra Leone and Liberia (as figure 1 shows). On the other hand, these three countries lack the necessary health and treatment systems to fight against Ebola. Thus, in this paper we only consider these three countries as our research objects.

The Effect Of Problem-Based Learning (Pbl) With Mockup Media In Learning Programmable Logic Controller, Suhanto Suhanto, Mustaji Mustaji, Moch. Rifai, Lady Silk Moonlight, Asep Muhamad Soleh, Ahmad Fudholi

Jurnal Pendidikan Vokasi

This research aims to (1) examine the differences in learning outcomes of programmable logic controllers between cadets who use problem-based learning strategies assisted by mockup media and problem-based learning strategies, (2) examine the differences in learning outcomes of programmable logic controllers between cadets who have high and low initial abilities, and (3) examine the interaction effect between learning strategies and initial abilities on learning outcomes of programmable logic controllers. This research uses a 2 x 2 factorial design with the object of research being the 3rd-semester airport electrical engineering study program students at Aviation Polytechnic Surabaya. The sample of this …

Development Of A Hybrid Teaching Factory Model Based On School Governance In Improving Employability Skills Of Vocational Students, Sintha Wahjusaputri, Tashia Indah Nastiti, Yingdong Liu

Jurnal Pendidikan Vokasi

This research aims to develop a framework for a hybrid teaching factory model that combines face-to-face and online learning with information and communication technology to improve employability skills in the new normal era. The research method uses the ADDIE Research and Development model, which consists of five stages: analysis, design, development, implementation, and evaluation. The research was conducted in several vocational high schools in DKI Jakarta Region, Indonesia. The findings in the research prove that the implementation of hybrid learning has an impact on students and teachers. Hybrid learning teaching factory is proven to be able to overcome frustrations and …

The Influence Of Creativity And Learning Motivation On Entrepreneurial Intentions Of Fisheries Vocational High School Students, Priyono Priyono, Achmad Imam Agung, I Gusti Putu Asto Buditjahjanto, Lilik Anifah, Tomi Agfianto

Jurnal Pendidikan Vokasi

The fisheries department is one of the expertise programs in Vocational High Schools (VHS). Learning motivation towards the entrepreneurial intention of VHS students majoring in fisheries is still low. This is supported by the fact that some students do not know the relationship between entrepreneurial intentions and learning motivation, which can arouse students' intentions for entrepreneurship. Therefore, this research aims to see the effect of creativity and learning motivation on the entrepreneurial intentions of VHS students majoring in fisheries. This research is ex post facto research with a quantitative approach because the data is generated in the form of numbers …

Book Review: Tracers In The Dark: The Global Hunt For The Crime Lords Of Cryptocurrency, Marion Jones

International Journal of Cybersecurity Intelligence & Cybercrime

Doubleday released Andy Greenberg’s Tracers in the Dark: The Global Hunt for the Crime Lords of Cryptocurrency in November 2022. Through vivid case studies of global criminal investigations, the book dispels myths about the anonymizing power of cryptocurrency. The book details how the ability to identify cryptocurrency users and payment methods successfully brought down several large criminal empires, while also highlighting the continuous cat-and-mouse game between law enforcement officials and criminal actors using cryptocurrency. The book is an excellent resource for law enforcement officials, academics, and general cybersecurity practitioners interested in cryptocurrency-related criminal activities and law enforcement techniques.

The Influence Of Creativity And Learning Motivation On Entrepreneurial Intentions Of Fisheries Vocational High School Students, Priyono Priyono, Achmad Imam Agung, I Gusti Putu Asto Buditjahjanto, Lilik Anifah, Tomi Agfianto

Jurnal Pendidikan Vokasi

The fisheries department is one of the expertise programs in Vocational High Schools (VHS). Learning motivation towards the entrepreneurial intention of VHS students majoring in fisheries is still low. This is supported by the fact that some students do not know the relationship between entrepreneurial intentions and learning motivation, which can arouse students' intentions for entrepreneurship. Therefore, this research aims to see the effect of creativity and learning motivation on the entrepreneurial intentions of VHS students majoring in fisheries. This research is ex post facto research with a quantitative approach because the data is generated in the form of numbers …

Analysis Of The Indirect Correlation Between Academic Achievement, Intrinsic And Extrinsic Motivation, And Self-Efficacy On Teaching Readiness, Andi Maga Umara, Pardjono Pardjono, Galeh Nur Indriatno Putra Pratama

Jurnal Pendidikan Vokasi

This research aims to determine the indirect correlation between academic achievement, intrinsic motivation, extrinsic motivation, and self-efficacy on the teaching readiness of education study program students. This type of research is quantitative and inferential in testing the hypothesis. This research was conducted in October 2022, and the subjects in this study were 167 students from the Universitas Negeri Gorontalo classes of 2018 and 2019. The sampling technique used is saturated sampling, which is used to select samples that include every member of the population. The instrument used in this research is a questionnaire that has been validated by experts and …

Analysis Of Improving Innovative Work Behaviour Of Vocational High School Teachers In Terms Of Servant Leadership With Knowledge Sharing As An Intervening Variable, Hendro Prasetyono, Sumaryati Tjitrosumarto, J. Sabas Setyohadi, Sri Hapsari, Ira Pratiwi Ramdayana

Jurnal Pendidikan Vokasi

The purpose of this research is to describe the innovative work behavior of vocational high school teachers in terms of servant leadership which is intervened by knowledge sharing. This research uses a quantitative approach with a survey method. The sampling technique was simple random sampling which came from vocational high school teachers from the provinces of East Java, Central Java, West Java, DKI Jakarta, Banten, Riau Islands, and South Sumatra with a total of 165 teachers. Data analysis techniques using descriptive analysis and path analysis. Results: The dimension of the teacher's innovative work behavior, namely with the intent of benefit …

The Comment, February 29, 2024, Bridgewater State University

The Comment

No abstract provided.

Strategy For Predictive Control Of The Rectification Process Based On A Model Controller With A Given Forecast, Ildar Rafkatovich Sultanov

Chemical Technology, Control and Management

A method is being developed to optimize the generated controls for the multicomponent distillation process with prediction, based on predictive data with a moving horizon. The difference between this method and the classical modeling approach, in which the percentage of the degree of opening of valves installed on the output streams of the column is used as control actions, is that control occurs on the feedback principle. The proposed method is based on the use of a dynamic process model to optimize control actions in real time in order to achieve certain production targets. The essence of the MPC approach …