Cytotaxonomic observations on North American Festuca (Poaceae)

1992 ◽  
Vol 70 (10) ◽  
pp. 1940-1944 ◽  
Author(s):  
Susan G. Aiken ◽  
George Fedak
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
North American ◽  
West Coast ◽  
Chromosome Count ◽  
B Chromosomes ◽  
The Other ◽  
Festuca Rubra ◽  
Made In

The presence of B chromosomes is reported in Festuca altaica Trin., where a plant with relatively wide and often flat leaves had a chromosome number of 2n = 4x = 28; an adjacent plant, with conspicuously narrow and tightly rolled leaves, had 2n = 4x = 28 + 2B chromosomes. A first chromosome count of 2n = 42 is reported for Festuca rubra L. ssp. densiuscula (Hackel) Piper, along with observations on the nomenclature and morphology of this west coast subspecies. A first chromosome count for a North American plant of Festuca brevissima Jurtzev is 2n = 14. Collections made in northern Yukon were compared with the type borrowed from Leningrad and with the distribution of this species relative to the other North American diploid Festuca, Festuca aggr. auriculata Drob. A collection of Festuca brachyphylla Schultes from northern Yukon had a chromosome number of 2n = 42, and unusual morphology and phenology were interpreted as the result of a snow patch habitat. A second record for Festuca dasyclada Hackel ex. Beal of a chromosome number of 2n = 28 and justifications for keeping this species in Festuca are presented. Key words: Poaceae, North American, Festuca, chromosomes, morphology, nomenclature.

scholarly journals Karyotype analysis with orcein and CMA in two species of Alocasia (Schott) G. Don (Araceae)

1970 ◽  
Vol 40 (1) ◽  
pp. 53-56 ◽  
Author(s):  
Syeda Sharmeen Sultana ◽  
Hosne Ara ◽  
Sheikh Shamimul Alam
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
Karyotype Analysis ◽  
Chromosome Complement ◽  
Taxonomic Status ◽  
The Other ◽  
First Report ◽  
Total Length ◽  
Internet Information ◽  
Chromosomal Length

Alocasia fallax Schott and A. odora (Roxb.) Koch (Araceae) were investigated cytogenetically to confirm their taxonomic status. There is no report of 2n chromosome number for A. fallax in the available literature and internet information. Therefore the 2n chromosome number (2n = 28) found in this study is probably the first report for A. fallax. Alocasia odora showed exactly double 2n chromosome number (2n = 56) from A. fallax. In addition to chromosome number, the other karyotypic features of A. odora were exactly double for that of A. fallax. The centromeric formulae of A. fallax was 24 m + 4 sm whereas it is just double in A. odora. Total length of 2n chromosome complement of A. odora (62.58 μm) was almost double to A. fallax. The range of chromosomal length of the two species was almost same. Moreover, A. odora plant is much taller than A. fallax. All of these data suggests that A. odora might be an autotetraploid of A. fallax which in course of evolution had undergone some changes in GC-rich repeats. Key words: Alocasia; CMA; Karyotype analysis DOI: http://dx.doi.org/10.3329/bjb.v40i1.7998 Bangladesh J. Bot. 40(1): 53-56, 2011 (June)

A clarification of Medicago sinskiae

1991 ◽  
Vol 69 (1) ◽  
pp. 100-106 ◽  
Author(s):  
Ernest Small ◽  
Brenda Brookes
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
Related Species ◽  
The Other ◽  
Species Status ◽  
Closely Related Species

Little information has been available to justify the species status of the rare Turkmenian Medicago sinskiae Uljan. recognized by Uljanova in 1964. The holotype and plants raised from its seeds were examined, the chromosome number was determined, and a numerical taxonomic comparison was made of M. sinskiae and the other 12 species of Medicago section Spirocarpos subsection Pachyspirae. It was found that M. sinskiae is well separated from the most closely related species of Medicago and deserves recognition at the rank of species. Key words: Medicago sinskiae, Leguminoseae, alfalfa, taxonomy.

scholarly journals Students’ Morphological Errors in Writing Recount Text at Muhammadiyah University of Metro

2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Fitri Palupi Kusumawati
Keyword(s):  
Key Words ◽  
The Other ◽  
Global Error ◽  
Local Error ◽  
The Third ◽  
Other Hand ◽  
Made In ◽  
Descriptive Qualitative

The objectives of this research are to find out the kinds of students’ morphological error in writing recount text and to find out the difficulties faced by the student in writing recount text. This research is a descriptive qualitative. It means this study focused to describe and analyze the students’ error. Based on the result that mentioned previously, the researcher found that the number of students’ omission and misformation errors are high. The highest students’ errors made in misformation are about 51, 19 %.  Most of the students used wrong form of morphological in their writing. The second is the students errors made in omission are around 32, 74 %.The students not adding bound morpheme, they omit the necessary item in their sentences. The third, the students made errors in addition and misordering are about 13, 69 % and 2, 38 %. The students add unnecessary item and put incorrect placement of morpheme in their writing. On the other hand, according to table 4.2 the researcher conclude that the number of error is five or 31, 25 % students made error in global error and 11or 68, 75 % students made in local error. Key Words: Morphological errors, students’ writing

Nouvelles observations cytologiques chez Festuca rubra sensu lato (Poaceae) dans l'Est du Canada

1995 ◽  
Vol 73 (8) ◽  
pp. 1289-1294 ◽  
Author(s):  
Martin Dubé ◽  
Pierre Morisset
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
Natural Habitat ◽  
Festuca Rubra ◽  
Eastern Canada ◽  
Natural Habitats

Sixty-one chromosome number determinations in Festuca rubra L. from eastern Canada show that hexaploids plants (n = 21) are found in both natural habitats and ruderal places, octoploids rhizomatous plants (n = 28) are mostly found in ruderal places, but also in disturbed natural habitats. Morever, one aneuploid (2n = ca. 48) is found from a natural habitat and intercytotype hybrids are found in ruderal places or disturbed natural habitats. Key words: Festuca rubra, cytotypes, hybrids.

Conspectus of the genus Douglasia (Primulaceae) with comments on Douglasia alaskana, an Alaska–Yukon alpine endemic

1992 ◽  
Vol 70 (3) ◽  
pp. 593-596 ◽  
Author(s):  
Sylvia Kelso
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
North American ◽  
Growth Habit ◽  
Flower Color ◽  
Corolla Tube ◽  
Definition Of

The endemic North American genus Douglasia has been considered dubiously distinct from its widespread Asiatic relative Androsace, differing primarily in flower color and growth habit. The distinctive nature of Douglasia is reaffirmed here, and the definition of the genus is amplified with additional characters that include an exserted corolla tube, stellate pubescence, multiple scapes, sessile umbels, and a higher chromosome number. A species endemic to Alaska and the Yukon, formerly known as Androsace alaskana, is transferred to Douglasia on this basis. This taxon is apparently closed related to Asiatic members of Androsace and may represent an ancestral link between the two genera. Key words: Androsace, Arctic, Douglasia, Primulaceae.

Performance assessment of a railway turnout geotextile

1986 ◽  
Vol 23 (4) ◽  
pp. 472-480 ◽  
Author(s):  
Gerald P. Raymond
Keyword(s):  
Performance Assessment ◽  
Key Words ◽  
Unit Area ◽  
Variable Mass ◽  
The Other ◽  
Financial Viability ◽  
Compacted Clay ◽  
Railway Turnout ◽  
Made In

Many railways have been making increasing use of the heavier mass per unit area geotextiles, bringing into question the financial viability of their use. In order to assess the viability of turnout geotextiles, two closely spaced turnouts, positioned on an embankment constructed of compacted clay at Rosser, near Winnipeg, were rehabilitated in September 1981. Under one turnout, a Turn Out Pack System (TOPS) geotextile of variable mass per unit area (550–1100 g/m2 (16–32 oz/yd2)) was used; with the other, no geotextile was used. The ballast was a metamorphic granodioritic gneiss known locally as Kenora granite. This article summarizes the findings of excavations made to assess the performance of the geotextile. The assessment excavations were made in August 1984 after an average of 13.6 × 106 gross tonnes (15 × 106 gross tons) per year per track of traffic. The results clearly show the damage penalty to the ballast from fouling caused at the nongeotextile locations. Key words: railways, ballast, subballast, geotextile, fouling, pumping, fines, equivalent opening size (EOS).

scholarly journals Cytotaxonomy of Smithia ciliata Royle (Fabaceae)

2010 ◽  
Vol 6 ◽  
pp. 111-113
Author(s):  
Laxmi Manandhar ◽  
Shyam R Sakya
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
Somatic Chromosome ◽  
Basic Number ◽  
Chromosome Count ◽  
Plant Science ◽  
Kathmandu Valley ◽  
Somatic Chromosome Number ◽  
Karyotype Structure

Cytotaxonomy of Smithia ciliata Royle, collected from Panighat (1700 msl), Kathmandu valley, is reported. The somatic chromosome number was found to be 2n = 38 with the basic number being n = 19.  Karyotype structure is predominated with medium sized chromosomes and with median constrictions. Key-words: chromosome count; karyotype; meiosis.DOI: 10.3126/botor.v6i0.2921 Botanica Orientalis - Journal of Plant Science (2009) 6: 111-113

The Biology of Mysidopsis Gibbosa, M. Didelphys and M. Angusta [Crustacea, Mysidacea]

1970 ◽  
Vol 50 (2) ◽  
pp. 381-396 ◽  
Author(s):  
J. Mauchline
Keyword(s):  
West Coast ◽  
The Other ◽  
The West ◽  
Large Numbers ◽  
Made In

Only three of the twenty species at present ascribed to the genus Mysidopsis have been recorded around the coasts of Britain; these are M. gibbosa G. O. Sars, M. didelphys Norman and M. angusta G. O. Sars. The latter species is rare and has never been caught in large numbers. Large catches of M. gibbosa are made in certain sandy bays in the Firth of Clyde and the species is quite common in Gaineamh Smuagh, a sandy bay in Loch Ewe, Wester Ross (Mauchline, 1965 a). The largest species, M. didelphys, occurs at greater depths than the other two and, like M. gibbosa, is often common in certain areas, especially in the deep troughs of the Firth of Clyde and in some of the west coast lochs of Scotland, for example the upper part of Loch Etive.

On the Future of the Financial Redistribution across Member States in the EU

2006 ◽  
Vol 56 (1) ◽  
pp. 1-43
Author(s):  
Sándor Richter
Keyword(s):  
Value Added ◽  
The Other ◽  
Current Debate ◽  
Member States ◽  
New Member States ◽  
Financial Position ◽  
Cross Member ◽  
Expenditure Structure ◽  
The Eu ◽  
Made In

The order and modalities of cross-member state redistribution as well as the net financial position of the member states are one of the most widely discussed aspects of European integration. The paper addresses selected issues in the current debate on the EU budget for the period 2007 to 2013 and introduces four scenarios. The first is identical to the European Commission's proposal; the second is based on reducing the budget to 1% of the EU's GNI, as proposed by the six net-payer countries, while maintaining the expenditure structure of the Commission's proposal. The next two scenarios represent radical reforms: one of them also features a '1% EU GNI'; however, the expenditures for providing 'EU-wide value-added' are left unchanged and it is envisaged that the requisite cuts will be made in the expenditures earmarked for cohesion. The other reform scenario is different from the former one in that the cohesion-related expenditures are left unchanged and the expenditures for providing 'EU-wide value-added' are reduced. After the comparison of the various scenarios, the allocation of transfers to the new member states in terms of the conditions prevailing in the different scenarios is analysed.

Physical and Mechanical Properties of Tenun Pahang Fabrics using Alternative Yarns

2016 ◽  
Vol 13 (2) ◽  
pp. 67
Author(s):  
Engku Liyana Zafirah Engku Mohd Suhaimi ◽  
Jamil Salleh ◽  
Suzaini Abd Ghani ◽  
Mohamad Faizul Yahya ◽  
Mohd Rozi Ahmad
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
The Other ◽  
Silk Fabrics ◽  
Recovery Angle ◽  
Made In

An investigation on the properties of Tenun Pahang fabric performances using alternative yarns was conducted. The studies were made in order to evaluate whether the Tenun Pahang fabric could be produced economically and at the same time maintain the fabric quality. Traditional Tenun Pahang fabric uses silk for both warp and weft. For this project, two alternative yarns were used which were bamboo and modal, which were a little lower in cost compared to silk. These yarns were woven with two variations, one with the yarns as weft only while maintaining the silk warp and the other with both warp and weft using the alternative yarns. Four (4) physical testings and three (3) mechanical testings conducted on the fabric samples. The fabric samples were evaluated including weight, thickness, thread density, crease recovery angle, stiffness and drapability. The results show that modal/silk and bamboo silk fabrics are comparable in terms of stiffness and drapability, hence they have the potential to replace 100% silk Tenun Pahang.

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