scholarly journals Introduction and Breeding of Rhododendrons in Latvia

2017 ◽  
Vol 71 (3) ◽  
pp. 248-252 ◽  
Author(s):  
Rihards Kondratovičs ◽  
Uldis Kondratovičs
Keyword(s):  
Wild Species ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
Habitat Size ◽  
Public And Private ◽  
Flowering Season ◽  
In The Wild ◽  
Extensive Collection ◽  
The University

Abstract Rhododendrons are relatively new beautiful ornamental plants in Latvia forming an essential part of public and private gardens, although they were introduced in Latvian territory already during the first half of 19th century. Rhododendrons deserve their immense popularity due to the diversity of their habitat, size and type of blossoms and leaves and their flowering season. There are about 1000 rhododendron species in the wild up to now whereas breeders in various countries have created more than 30 000 cultivars. Intensive rhododendrons introduction and acclimatization in Latvia started in 1957 when Rihards Kondratovičs, at the time director of the Botanical Garden, University of Latvia, started his research on the introduction and acclimatization of rhododendrons. Winterhardiness of about 400 wild species in Latvia was tested and 76 species were found to be suitable. Following the development of an extensive collection of wild rhododendron species and cultivars, the Rhododendron Breeding and Experimental Nursery “Babīte”, University of Latvia, was established at 1980 and the active breeding of new winterhardy cultivars was started. In 2017, the collection of outdoor rhododendrons of the University of Latvia consists of 76 species and 265 cultivars, including 109 cultivars bred in Latvia by Professor Rihards Kondratovičs.

scholarly journals (77) Effects of Photoselective Shadecloths on Flowering of Potted Orchids

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1066A-1066
Author(s):  
Kent D. Kobayashi ◽  
Edwin F. Mersino
Keyword(s):  
Ornamental Plants ◽  
The Other ◽  
Light Spectrum ◽  
Flower Production ◽  
Competitive Edge ◽  
Flowering Season ◽  
Pvc Pipe ◽  
The University

Increasing flower production and manipulating the flowering season of potted ornamental plants would help provide a competitive edge for floriculture producers in Hawaii. Photoselective shadecloths that modify the light spectrum may be an approach to achieve these aims. The objective of this study was to determine the effects of photoselective shadecloths on the flowering of potted orchids. At the University of Hawaii Magoon Facilities (Oahu), two kinds of orchids were grown in a saranhouse in chambers built with PVC pipe covered with the four shadecloths—black (control), gray (diffusive), red, and blue—each providing 30% shading. With M-10973 Rhv. Herbert Kurihara `Flori' orchid plants, more buds and flowers were produced under the black and red shadecloths than the other two shadecloths. The black and red shadecloths resulted in similar earlier starting dates of bud appearance (4 Aug.2005) and flower appearance (4 Aug. 2005). Whereas, under the blue shadecloth, bud appearance (18 Aug. 2005) and flower appearance (31 Aug. 2005) were delayed. Under the black and red shadecloths, flowering ended earlier (27 Oct. 2005). When flower production resumed, new spikes were produced earliest under the red shadecloth (1 Dec. 2005). No new spikes were produced under the black shadecloth. For M-10878 Colmanara Sphacetante `Evelyn' AM/AOS orchid plants, spike formation occurred later than with the M-10973 plants. Spike formation occurred on the same date for all shadecloth treatments (10 Feb. 2006), with similar numbers of spikes. Thus, photoselective shadecloths influenced flowering, but their effects varied with the orchid.

16th and 17th Workshops of the International Association of Vegetation Science Working Group for the European Vegetation Survey (Rome, Italy, 22-26 March 2007; Brno, Czech Republic, 1-5 May 2008)

2008 ◽  
pp. 131-133
Author(s):  
T. M. Lysenko ◽  
Yu. A. Semenishchenkov
Keyword(s):  
Czech Republic ◽  
Working Group ◽  
International Association ◽  
Botanical Garden ◽  
European Countries ◽  
Vegetation Survey ◽  
Vegetation Science ◽  
The University ◽  
Science Working

22-26 March 2007 in Rome (Italy), in the Botanical garden of the University «La Sapienza» hosted the 16th meeting of the Working group «Review of the Vegetation of Europe» of the International Association of Vegetation Science (IAVS). These meetings are held every spring in one of the European countries and dedicated to various topics.

Understanding genetic diversity, structure and population differentiation in selected wild species and cultivated Indian and exotic rose varieties based on microsatellite allele frequencies

2019 ◽  
Vol 79 (3) ◽  
Author(s):  
Aparna . Veluru ◽  
Kanwar P. Singh ◽  
Namita . . ◽  
Sapna . Panwar ◽  
Gayacharan . . ◽  
...  
Keyword(s):  
Wild Species ◽  
Population Differentiation ◽  
Ornamental Plants ◽  
Primary Source ◽  
Mean Value ◽  
Rosa Hybrida ◽  
Population Subdivision ◽  
Nutraceutical Compounds ◽  
Ssr Loci ◽  
Admixture Population

Roses are the most important commercial ornamental plants grown for flowers, perfumery and nutraceutical compounds. Commercially cultivated roses (Rosa × hybrida L.) are complex interspecific hybrids probably derived from 8-10 wild species among the large diversity of 130-200 species in genus Rosa. Wild germplasm is a primary source of variability and plays a major role in improving existing varieties by broadening their genetic base. In the present investigation, we have utilized the previously identified SSR primers for studying the diversity among 148 selected rose genotypes, including wild species and cultivated varieties of Indian and exotic origin. A total of 88 alleles was scored using 30 polymorphic loci; they produced average 2.9±1 alleles per locus. Polymorphism information content (PIC) values for different SSR loci ranged from 0.08 to 0.8 with a mean value of 0.5±0.2. The neighbor-joining tree generated based on Nei’s (1978) genetic distance values grouped the population into three major clusters. Cluster-I and II consists of all modern rose cultivars (Rosa × hybrida L.) originated from India and cluster-III consists of all exotic cultivars, wild species and a few cultivars from India. STRUCTURE analysis based on microsatellite allelic data, partitioned the total rose genotypes into four different sub-populations with some individual genotypes having genomic admixture. Population subdivision estimates, FST between different subpopulations ranged from 0.01-0.15 indicates low to moderate level of divergence existing among the rose cultivars and germplasm. Population differentiation in rose cultivars and wild species corresponds to their geographical origin and lineages. Analysis of molecular variance (AMOVA) results revealed that 83.12 % of the variance was accounted for by within sub-groups followed by significant levels of variation among the populations (10.42%) and least variance (6.46%) was noticed among individuals within groups.

A PROMISING ASSORTMENT OF TREES AND SHRUBS FOR LANDSCAPING IN VOLGOGRAD CITY

2021 ◽  
pp. 5-18
Author(s):  
E.N. Tyukhtina ◽  
Keyword(s):  
Negative Impact ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
Green Spaces ◽  
Ecological Situation ◽  
High Concentration ◽  
High Level ◽  
The City ◽  
Trees And Shrubs

The article deals with one of the most relevant topics of the modern city and ecology - the problem of landscaping in Volgograd. The city is characterized by an industrial urbanism, with a high concentration of population, saturation of production facilities and vehicles, which contributes to a high level of negative impact on the environment. The pace of greening of the city lags behind the pace of construction of the residential sector, and the existing green spaces do not meet the sanitary and hygienic, aesthetic requirements. The prospects of this problem are determined, the existing green spaces are considered, data on the climatic conditions of the city and the ecological situation are given. Improvement in the field of landscaping is associated with the scientifically sound placement of green spaces, taking into account all the factors that affect the growth and development of plants in the urban environment. Unfortunately, due to the uneven distribution of the assortment of trees and shrubs, the species composition of the central streets and squares of the city is extremely poor. The study focuses on the role of the botanical garden in urban landscaping and aims to create recommendations for the sorting of tree and shrub plants for urban landscaping. As a result of the analysis of the assortment of ornamental plants of the open ground of the botanical garden, the article proposed species and varieties of woody and shrubby plants that have passed the introduction tests for more than 5-10 years. Recommendations for sorting are aimed at improving the ecological situation of the city and greening the recreation areas of citizens. The proposed list of tree and shrub species cannot fully solve the problem of greening the city, but it will help to significantly enrich the composition of tree and shrub plants.

Accessibility of Internet Based Electronic Resources: A Content Analysis of Public and Private University Library Websites in Bangladesh

2019 ◽  
Vol 9 (2) ◽  
pp. 28-33
Author(s):  
Shamima Yesmin .
Keyword(s):  
Content Analysis ◽  
Early Stage ◽  
Private University ◽  
Easy Access ◽  
University Libraries ◽  
Electronic Resources ◽  
Public And Private ◽  
University Library ◽  
Library Websites ◽  
The University

The purpose of this paper is to analyze the websites of university libraries to ascertain that libraries are effectively utilizing their respective websites to provide easy access to all electronic resources available in the library. The objective was also to a represent a comparative analysis between public and private university library websites regarding the presence of electronic resources with their easy access via the internet. For the purpose of this study, a research instrument in the form of comprehensive checklist of eighteen e-resources was developed to evaluate their accessibility in the websites of public and private university libraries. Twenty university library websites, comprised of ten top-ranked public and ten top-ranked private universities in Bangladesh, were studied for data collection using content analysis method. The findings demonstrate that the presence of e-resources on selected university library websites is still in its early stage, but it has been growing rapidly. The private university library websites are ahead of public university libraries in terms of the integration of web-resources. It is hoped that the findings of this paper will serve to assist the University librarians and other similar institutions in choosing, selecting and acquiring the most appropriate format of information resources, and making these available to their websites, which will both satisfy the needs of their library users and fit within their library budget.

Report on the Pre-Collegiate Activities of Federally Funded Middle East Language and Area Centers

1977 ◽  
Vol 11 (1) ◽  
pp. 70-77
Author(s):  
Barbro M. Ek
Keyword(s):  
Middle East ◽  
Business Community ◽  
Public And Private ◽  
Two Year Colleges ◽  
Textbook Evaluation ◽  
Outreach Services ◽  
Library Resources ◽  
State And Local ◽  
Undergraduate Programs ◽  
The University

This Report was prepared under the auspices of the MESA Committee on Pre-Collegiate Education, Michael W. Suleiman, Chairperson; Barbro M. Ek, Marvin Fricklas, Mounir Farah, Glenn Perry, Juanita Will Soghikian and Don Peretz, Members.There are presently twelve regional centers for the study of the Middle East receiving operational grants from the Office of Education under its language and area centers program. These grants range In amounts from $50,000 to $114,000 per year with the average falling somewhere around $92,000 yearly. Although there is a yearly competition, most centers receive funding for a minimum of three years. Of the presently funded centers, two (University of Arizona and Portland State) are funded as undergraduate programs, with the remainder serving the graduate sector as well. Government guidelines stipulate that 15% of the total grant must be spent in the area of “outreach” services to agencies, organizations and individuals outside the university interested in the resources of the center. Funding criteria for fiscal 1976 published in the Federal Register (Vol. 41, No. 20, Feb. 9, 1976) further specifies that “Centers shall provide such “outreach activities” in two or more of the following areas, at least one of which shall be either (1) or (2) below:(1) Assistance to other institutions of higher education including public and private four-year colleges, particularly those with teacher education programs, and two year colleges (such as sharing of library resources, faculty workshops, and cross-registration of students); (2) assistance to state and local elementary and secondary educational agencies (such as in-service teacher training, bibliographic assistance, textbook evaluation, curriculum development, and direct instructional services; (3) assistance to the business community (such as workshops and special courses) and (4) sharing of resources (such as general lectures, films and book and art exhibits) with the community at large.”

scholarly journals The Effect of Job Burnout on Employees’ Satisfaction: A Comparison Study between Public Universities and Private Universities in Jordan

2015 ◽  
Vol 7 (4) ◽  
pp. 54
Author(s):  
Naser Jamal Khdour ◽  
Omar Durrah ◽  
Martin Harris
Keyword(s):  
Job Satisfaction ◽  
Public Universities ◽  
Private Universities ◽  
Negative Attitude ◽  
Job Burnout ◽  
Administrative Staff ◽  
Public And Private ◽  
Employees Satisfaction ◽  
Personal Performance ◽  
The University

<p>This study seeks to shed light on the phenomenon of job burnout, and its prevalence amongst the staff and seeks to address the issue of the level of job satisfaction in Jordanian universities, together with the examination of the effect of job burnout on job satisfaction. The study adopted a descriptive analytical approach through a comparative study between public universities and private universities, and used the questionnaire as basic tool for data collection, which was distributed to a sample of (200) members of the administrative staff in Jordanian public and private universities. The study found that the degree of job burnout experienced by the administrative staff in the university sector was more than average, Showed that low personal performance dimension has ranked the first as the most persistent job burnout dimension then physical and emotional exhaustion then negative attitude towards relationships. It observed that the degree of job burnout in public universities was greater than in the private universities. The level of staff job satisfaction in the public universities was less than that observed in private universities. The study showed that no dimension of job morally affects on employees satisfaction in public universities. while only one dimension (low personal achievement) affects employees satisfaction in private universities.</p>

scholarly journals KEGIATAN WORKSHOP UNTUK MENINGKATKAN JUMLAH MAHASISWA PROGRAM STUDI TEKNIK

2018 ◽  
Vol 2 (2) ◽  
pp. 89
Author(s):  
Carolina M. Arch ◽  
Amandus Jong Tallo
Keyword(s):  
Current Trend ◽  
Social Study ◽  
Private University ◽  
Student Interest ◽  
Prospective Students ◽  
Study Program ◽  
Public And Private ◽  
Related Data ◽  
The Social ◽  
The University

Minat calon siswa pada program studi teknik di perguruan tinggi swasta dan negeri semakin berkurang. Data menunjukan  hanya 14%  mahasiswa yang memilih program studi teknik. Pada lingkup yang lebih kecil, jumlah peminat mahasiswa teknik di salah satu universitas swasta hanya 25% dibandingkan program studi ilmu sosial. Tujuan dari dilakukannya penelitian ini adalah untuk merumuskan penyebab rendahnya minat calon mahasiswa terhadap program studi teknik sekaligus mencoba untuk menyusun solusi-solusi aplikatif yang sudah dicoba, teori-teori yang relevan, yang dirasa dapat membantu dalam memecahkan masalah. Metode yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Data yang digunakan  berasal dari hasil kuesioner mahasiswa baru dan data-data terkait dengan jumlah mahasiswa baik ditingkat kopertis III maupun di internal Universitas ABC.  Berdasarkan hasil analisis data, ditemukan bahwa program studi teknik yang menjadi minat masyarakat kini adalah program studi teknik yang memiliki social senses, diantaranya Teknik Arsitektur, PWK dan Desain Produk. Sejalan dengan teori 4 (empat) unsur dibalik popularitas ketokohan seseorang, hal tersebut didasari akan trend calon mahasiswa terhadap daya tarik ilmu sosial yang bisa menemukan problem solving, kesuksesan public figure, dan industry branding. Upaya meningkatkan jumlah peminat program studi teknik, dapat dilakukan lewat kegiatan workshop dosen keilmuan kepada calon mahasiswa secara langsung serta open house universitas. Kata kunci: kuliah, minat, strategi, teknik Title: Workshop to Increase the Number of Students at Engineering Study Program Interest of prospective students toward engineering courses both in public and private universities keep decreasing. Data shows that only 14% of students choose engineering courses. In smaller scale, in one private university, students interest taking the engineering course are only 25% compared to student interest on taking the social courses. Purpose of this research was to conclude the reasons why student’s interest toward engineering courses are low, and to comprise some proven solutions, related theories, in order to help solving the problems. Method used in this research is descriptive quantitative. Data used comes from new student’s quisionaire, and related data with student’s number studying engineering course in Kopertis III and in the internal of ABC University. Data analysis showed that current engineering courses which have more students, are engineering courses with social senses such as Architecture, Regional Planning, and Design Product. Along with the theory of 4 (four) aspecs behind the popularity of a figure, all caused by the current trend of prospective student’s interest towards the social study attractiveness which leads to problem soving, the existence of success’s public figures, and industry branding. Direct workshop between lecturer and prospective students, and doing open house in the university could be strategies to increase the numbers of prospective student who want to take engineering course. Keywords: lecture, interest, strategy, technique

scholarly journals First Reports of Aphelenchoides fragariae on Royal Fern and on Hosta and Other Hosts in South Carolina

Plant Disease ◽  
2000 ◽  
Vol 84 (5) ◽  
pp. 593-593 ◽  
Author(s):  
M. R. Williamson ◽  
J. H. Blake ◽  
S. N. Jeffers ◽  
S. A. Lewis
Keyword(s):  
South Carolina ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
The South ◽  
Clemson University ◽  
First Report ◽  
Symptomatic Leaf ◽  
Aphelenchoides Fragariae ◽  
Foliar Nematode

In September 1999, royal ferns (Osmunda regalis L.) at a South Carolina wholesale nursery were found to be infected by foliar nematodes. Lesions were brown, vein-limited, and often fan shaped. As severity increased, affected leaflets became totally necrotic. Nematodes were extracted by excising and dicing symptomatic leaf sections and placing them in water for up to 24 h. Ten adult nematodes from each of two fern plants were examined microscopically and determined to be Aphelenchoides fragariae (Ritzema Bos) Christie. This is the first report of this nematode infecting royal fern. In August 1996, leaves from several cultivars of Hosta spp. with yellow to tan, vein-limited lesions were submitted from The South Carolina Botanical Garden (Clemson, SC) to the Clemson University Plant Problem Clinic for diagnosis. Nematodes were extracted and examined as described above and identified as A. fragariae. This is the first report of this nematode infecting Hosta spp. in South Carolina. Since 1996, foliar nematodes have been recovered from hostas at several wholesale nurseries in South Carolina. Aphelenchoides spp. also have been detected previously in commercially produced ornamental plants in South Carolina, including a Begonia sp. in 1988; Polygonum bistorta L. ‘Super-bum’ (snakeweed) in 1997; and a Polystichum sp. (holly fern) in 1997. All plants exhibited angular or vein-limited, necrotic lesions typical of foliar nematode infections.

Sign in / Sign up

Export Citation Format

Share Document