Edited by Dr. David L. Hoffman, USDA-ARS Small Grains and Potato Germplasm Research Unit, Aberdeen, Idaho, USA
With special thanks to Dr. Victoria Carollo for her assistance in posting Volume 49 of the Oat Newsletter on the internet via a link from GrainGenes.
Please obtain the consent of the author(s) prior to citing information in the Oat Newsletter
I. NOTES
Instructions to Contributors for Volume 50
A Statement of Purpose of the Organization of the American Oat Workers Conference
American Oat Workers Conference Committees 2002-2006
Reminder of the VII International Oat Conference in Helsinki, Finland
In Remembrance: Solomon Kibite
AUSTRALIA
A New National Oat Breeding Program for Grain and Hay Variety Development
in Australia- P.K. Zwer, S.D. Hoppo, P.D. McCormack, D.K. Schaefer,
J.E. Emery, M. M. Williams, J. Sydenham, T. Cure, and M. Hall
CANADA
MANITOBA
Oat Breeding Activities at CRC-AAFC 2002-2003 -
Jennifer Mitchell-Fetch
RUSSIA
ST. PETERSBURG
Taxonomy and specific diversity of genus Avena L-
I. G. Loskutov
THE UNITED STATES OF AMERICA
FLORIDA - GEORGIA
Winter Oat Research and Breeding- R.D. Barnett, A. R. Blount, P.L. Pfahler, J.W. Johnson, B. M. Cunfer and G. D. Buntin
IDAHO
National Small Grains Collection Activities- H E. Bockelman
Evaluation of National Small Grains Collection Germplasm Progress
Report – Oats- C.A. Erickson and H.E. Bockelman
MINNESOTA
Oat Rusts in the United States in 2002- D. L. Long, M. L. Carson,
M. E. Hughes, G. E. Ochocki and L. A. Wanschura
NORTH DAKOTA
III. NEW CULTIVARS
HiFi
Morton
Oat Newsletter
Announcement
The Oat Newsletter is intended for informal communication among oat workers. Persons involved in any aspect of the oat industry and research, including production and breeding, pathology, biotechnology, and milling and processing, are invited to submit information about their programs in the Oat Newsletter.
All issues of the Oat Newsletter from Volume 44 onward have been published electronically on the Internet via a link from GrainGenes to the Oat Newsletter homepage
at http://wheat.pw.usda.gov/oatnewsletter/. Generally, printed paper versions will no longer be available, although , a limited printed copies of the Oat Newsletter will be
provided to those that do not have access to the Internet, on a cost-recovery basis. Requests should be sent to:
Dr. David L. Hoffman, Editor, Oat Newsletter
USDA-ARS
1691 South 2700 West
Aberdeen, Idaho USA 83210
Phone: (208) 397-4162 x125 / Fax: (208) 397-4165 ext. 125
e-mail: dlhoffman@uidaho.edu
Instructions to Contributors for Volume 50
Contributions for Volume 50 may be submitted at any time, but should be submitted no later than July 1, 2004. The editor encourages you to submit your article(s) several weeks earlier than the deadline date, if you can do so. Contributions to the Oat Newsletter must conform to the following guidelines:
a.
Prepare
articles in English. Maximum length should not exceed 6 pages, single-spaced.
b. Articles should be prepared in PC Microsoft Word, PC WordPerfect, or ASCII file format. Do not number pages. Articles should be titled as follows:
STATE OR COUNTRY
Author(s)
Affiliation(s) and Full Address(es)
And/or E-mail Address(es)
(Begin Text)
Photographs or images saved in .jpg or .gif format may be submitted with your articles.
inclusion will be returned to the author(s) for revision and resubmission for a
future volume.
e. An electronic version of the article should be submitted by mail or e-mail to:
Dr. David L. Hoffman, Editor, Oat Newsletter
USDA-ARS
1691 South 2700West
Aberdeen, ID 83210 USA
E-mail: dhoffman@uidaho.edu
A Statement
of Purpose of the Organization of the American Oat Workers Conference
This statement, approved by the members of the American Oat Workers Conference,
Minneapolis, Minnesota on June 22, 1994, shall serve to delineate the purpose
and organizational structure of an American Oat Workers Conference. This
Conference shall be made up of scientists and other workers actively engaged
in the improvement, management, and utilization of oats. These requirements
being met, active participation in the Conference constitutes membership,
and all attending members at a particular meeting of the Conference shall
have voice and vote in all matters properly brought before the Conference
during a regular business meeting to be held during each meeting of the
Conference. The Conference shall meet at a time, generally every four years,
and at a location to be selected by vote of the attending membership at
the previous meeting of the Conference. The Executive Committee, described
below, shall have the authority to call emergency meetings of the Conference
as necessary.
The purpose of the, American Oat Workers Conference shall be to advance
oat improvement and culture in the North America and the World by providing
a vehicle for:
Action on other matters that may properly come before the Conference.
Organization
American Oat Workers Conference Committee
The American Oat Workers Conference shall be under the general leadership
of an American Oat Workers Conference Committee composed of official representatives
of the various regions and countries and of a general Executive Committee.
Members of the Executive Committee shall be the Chairman, Chair-Elect, Past
Chairman, and Secretary of the American Oat Workers Conference and the Editor
of the Oat Newsletter, and they need not be official representatives of
the American Oat Workers Conference Committee. The Executive Committee shall
appoint a nominating committee for a slate of officers for the offices of
Chairman and Secretary of the Conference. The Chairman-elect and Secretary
shall be elected by the membership of the Conference during the regular
business meeting to be held each time the Conference meets. The term of office
shall be four years and the Chairman, Chairman-elect and Secretary will assume
their duties immediately after adjournment of the Conference wherein elected.
The Chairman-elect will automatically become the Chairman for the ensuing
four year period. These officers may serve consecutive terms if properly
elected by the Conference. The Editor of the Oat Newsletter shall be appointed
by the Executive Committee. The Editor of the Oat Newsletter may serve consecutive
terms. It shall be the responsibility of the Executive Committee to appoint
an Acting Editor of the Oat Newsletter should that position be vacated between
regular Conference meetings. The Past Chairman, Secretary, and Editor of
the Newsletter shall be non-voting members of the American Oat Workers Conference
unless they are also serving as representatives on the American Oat Workers
Conference Committee. The Chairman shall be a voting member of the latter
Committee and shall preside over all business meetings of the Committee and
of the American Oat Workers Conference.
The American Oat Workers Conference shall be made up of official representatives
from the various countries and regions as follows:
|
|
Country
and number of representatives |
||
|
Region or Agency |
USA |
Canada |
Mexico |
|
Northeastern Region |
1 |
1 |
- |
|
North Central Region |
1 |
- |
- |
|
Western Region |
1 |
1 |
- |
|
Southern Region |
1 |
- |
1 |
|
Federal Dept. of Agric. Advisor |
1 |
1 |
- |
Where the representative cannot attend an official conference, he may designate an alternate. In addition to the above minimum representation, three representatives shall be elected at large by the Conference during the regular meeting once every four years. Also, the elected chairman of the Conference shall be a member of the Committee. Thus, the total voting membership of the committee shall not exceed 14. Representatives from the various regions shall be selected by one of the following methods:
Alternates may be elected or appointed for each representative on the American
Oat Workers Conference Committee.
Standing Committees
There shall be Standing Committees of the American Oat Workers Conference
as follows:
1. Committee on Nomenclature
and Cataloguing of Oat Genes
This Committee shall consist of three Conference
members appointed by the Chairman of the American Oat Workers Conference.
It shall serve to assign symbols and catalog new genes governing characters
in oats. Such genes will be listed and described in the Oat Newsletter on
an annual basis. The Committee will also be responsible for considering
periodical updating and revision of the original publication on the subject,
which was entitled "A Standardized System of Nomenclature for Genes Governing
Characters of Oats". There shall be no limit of office of committee members.
2. Nomination Committee for Distinguished Service to Oat Improvement Award.
This Committee shall consist of three Conference members appointed by the
Chairman of the American Oat Workers Conference and shall include at least
two members who have served on the American Oat Workers Conference Committee.
Their term of office shall be from date of appointment until the end of
the following Conference meeting.
Oat Newsletter
The American Oat Workers Conference shall sponsor an Oat Newsletter to be
published on an annual basis for the purpose of dissemination of information
on current oat research and research needs. Members of the Conference are
encouraged to submit information about their current research programs in
response to an annual request to be made by the Editor of the Oat Newsletter.
The Newsletter shall also serve as a vehicle of publication for the minutes
of the business meetings of the Conference and of the American Oat Workers
Conference Committee as well as for Committee Reports and other Conference
notes. Abstracts of papers presented at meetings of the Conference also
shall be published in the appropriate issues of the Newsletter.
Contributions from countries outside the Conference will be accepted for
inclusion in the Newsletter, and should be encouraged so as to promote the
dissemination of oat research information and news.
The Oat Newsletter shall be distributed to all members of the Conference
and upon request, to other interested oat and cereal crops workers outside
the American Oat Workers Conference. The American Oat Association in conjunction
with the Editor of the Newsletter shall maintain a mailing list for this
purpose and publish it in each Oat Newsletter. An Oat Newsletter Editorial
Committee of four (three researchers and one industry rep) is to be appointed
by the AOWC Chair.
Distinguished
Service to Oat Improvement Award
The American Oat Workers Conference shall confer the "Distinguished Service
to Oat Improvement Award" upon persons in recognition of their outstanding
research contributions and/or meritorious service toward making oats a successful
agricultural species. The recipient(s) of this award shall be nominated
by the Committee previously described as having this charge, and they shall
be elected for the award by a majority vote of the American Oat Workers
Conference Committee. No restriction shall be placed upon whom may receive
the award. However, as a general guide, the award should be presented to
persons who have devoted a significant portion of their professional career
and a significant number of years working with oats through research, extension,
or other professional activities, The number of recipients should not be
limited, but in general, not more than one to three persons would be recognized
at one Conference meeting.
The Award shall be conferred at a regular meeting of the American Oat Workers
Conference. Manifestation of the award shall be denoted by the presentation
of a suitable plaque or certificate to the recipient. A brief (not to exceed
two typewritten pages) statement about the recipient and a photograph of
the recipient shall be printed in the first volume of the Oat Newsletter
after the presentation.
American Oat Workers Conference Committees 2002-2006
Executive Committee
Chair Paul Murphy
Crop Science, North Carolina State University
Box 7629, 840 Method Road, Unit 3
Raleigh, NC 27695, USA
e-mail: njpm@unity.nscu.edu
Past Chair Fred Kolb
Crop Sciences, University of Illinois
1102 South Goodwin Ave., Urbana, IL 61821, USA
e-mail: f-kolb@uiuc.edu
Chair-elect (Vacant)
Secretary Howard Rines
Department of Agronomy and Plant Genetics
University of Minnesota
411 Borlaug Hall, 1991 Buford Circle
St. Paul, MN 55108, USA
e-mail: Rines001@maroon.tc.umn.edu
Oat Newsletter Editorial Committee (2002 - 2006)
Editor David L. Hoffman
USDA-ARS
1691 South 2700 West
Aberdeen, ID 83210 USA
e-mail: dhoffman@uidaho.edu
Past Editor James Chong
Cereal Research Centre
Agriculture & Agri-Food Canada
195 Dafoe Road, Winnipeg, MB Canada R3T 3T2
e-mail: jchong@em.agr.ca
Editor-elect (Dave Hoffman)
Members-at-Large Stephen Harrison
Department of Agronomy
104 M.B. Sturgis Hall
Louisiana State University
Baton Rouge, LA USA
e-mail: sharrison@agctr.lsu.edu
David Marshall
USDA-ARS
Dept. of Plant Pathology
Box 7616, NCSU
Raleigh, NC 27965-7616
e-mail: david_marshall@ncsu.edu
Trevor Pizzey
Can-Oat Milling
P.O. Box 520
Portage, MB Canada R1N 3W1
e-mail: trevor.pizzey@can-oat.com
Regional and other representatives
Eastern Canada Art McElroy
K. W. Neatby Building
Agric. & Agri-Food Canada
Ottawa, ON Canada K1A 0C6
e-mail: mcelroyar@em.agr.ca
Western Canada James Chong
Cereal Research Centre
Agric. & Agri-Food Canada
195 Dafoe Road
Winnipeg, MB Canada R3T 3T2
e-mail: jchong@em.agr.ca
Agric.& Agri- Ken Campbell
Food Canada Research Coordination
Agric. and Agri-Food Canada
Ottawa, ON Canada
North Central USA Deon Stuthman
Agronomy and Plant Genetics
Univ. of Minnesota
411 Hayes Hall
St. Paul, MN 55108
e-mail: stuth001@umn.edu
Northeastern USA Mark Sorrells
Plant Breeding Dept.
413 Bradfield Hall
Cornell University
Ithaca, NY 14853
e-mail: mes12@cornell.edu
Western USA David Hoffman
USDA-ARS
1691 South 2700 West
Aberdeen, ID 83210 USA
e-mail: dhoffman@uidaho.edu
USDA-ARS Kay Simmons
USDA-ARS-NPS
Beltsville, MD USA
Mexico Jose Salmeron
APDO
Cuahtemoc, Chihuahua, Mexico
Industry Bruce Roskens
The Quaker Oats Company
Chicago, IL USA
IN MEMORIAL
Dr. Solomon Kibite
1949 – 2003
Dr. Solomon Kibite, oat breeder and researcher at the Agriculture and Agri-Food Canada Lacombe Research Centre in Alberta, Canada passed away suddenly at age 54 on August 20, 2003. Solomon was born in Addis Ababa, Ethiopia and grew up there during very turbulent times. He completed his B.Sc. degree in Plant Sciences at Alemaya College in Ethiopia in 1973 and then came to Canada where he earned his M. Sc. and Ph.D. in plant breeding at the Plant Sciences Dept., University of Manitoba.
In 1980 he moved to the University of Alberta where he taught and conducted research on wheat and barley until 1984 when he joined AAFC as cereal breeder at Lacombe. While initially responsible for wheat, barley and oat R&D, shortly after arriving at Lacombe Solomon’s responsibilities became 100% oat and he excelled in his activity as an oat researcher for the next nearly 20 years. During his all too short career he released 13 oat, barley and wheat varieties. His most recent oat release, AC Morgan, is an outstanding variety for the non-rust areas of western Canada with high grain yield potential, very good straw strength and good milling quality. Not only will it be a widely grown variety; it will undoubtedly survive in the pedigree of many future western Canadian varieties.
Solomon’s breeding materials have also found their way in numerous breeding programs around the world. He developed important germplasm with acid tolerance, early maturity, hulless types, forage types and with high levels of antioxidants, beta glucan, protein and fat. This material will be important in future Canadian and international oat varieties. He also developed techniques to efficiently measure important quality traits.
Solomon was internationally respected as the current Canadian member of the Executive Committee of the International Oat Conference, Chair of the 2006 American Oat Workers Conference, an Assoc. Editor of the Canadian Journal of Plant Science and has served on the executive of the Western Expert Committee on Grain Breeding, Prairie Region Recommending Committee for Grain, and many other regional and provincial committees.
In recognition of his outstanding contribution to western Canadian oat R&D Solomon was recognized by the oat producers of the area as the first recipient of the Kirlychuk Award for Outstanding Contribution to the Oat Industry from the Oat Producer’s Association of Alberta (now the Prairie Oat Grower’s Association) in 1998.
Solomon was known as a
real gentleman by the Canadian and International oat community. Colleagues from around the world have spoken fondly
of their social interaction with Solomon who often enjoyed pleasant visits
with many colleagues and their families. Solomon
had the ability to foster much collaboration with scientists around the
world that turned into friendships beyond the work.
Solomon leaves behind a son Michael and fiancée Yeshi Tekabe of Germany and four sisters in Ethiopia and Canada.
We will all miss our respected colleague, his quiet efficiency and his great eye for oat. We have lost a great colleague and, for many members of the oat community, a special friend.
II. REPORTS
AUSTRALIA
A New National Oat Breeding Program for Grain
and Hay Variety Development in Australia
P. K.
Zwer, S. D. Hoppo, P. D. McCormack, D. K. Schaefer, J. E. Emery, M. M. Williams,
J. Sydenham, T. Cure, and M. Hall
South Australian Research & Development Institute (SARDI)
Western Australian Department of Agriculture (WADA)
GPO Box 397, Adelaide SA 5001, Australia
Email: zwer.pamela@saugov.sa.gov.au
Rationalisation and changes in strategic directions of funding corporations and state departments of agriculture have led to the formation of a national oat breeding program for the southern region of Australia to develop improved hay and grain varieties. Two oat breeding programs led by Mr. Glenn Roberts and Dr. Leonard Song continue to develop grazing varieties for southern New South Wales (NSW) and Queensland, respectively.
Dr. Pamela Zwer is Principal Plant Breeder/Senior Oat Breeder and Ms. Sue Hoppo is Senior Research Officer/Oat Breeder for the Southern Region Oat Breeding Program. Mr. Peter McCormack was appointed into a new position, National Field Manager and continues his role as Commercialisation Manager, Field Crops for SARDI. Mr. Maurice Hall, Oat Quality Chemist, takes the lead for the quality program and is located at WADA. Mr. Daryl Schaefer is lead Agricultural Officer (field operations) and Mr. Gerald Cash was recently hired as an Agricultural Officer at SARDI. Mr. John Sydenham is Senior Agricultural Officer and Ms. Toni Cure is Agricultural Officer for Western Australia. Mrs. Jenny Emery is lead Agricultural Officer (glasshouse and laboratory) and Ms. Michelle Williams is Quality Technical Officer at SARDI.
The new approach provides a centralised grain and hay breeding program for the southern region of Australia, encompassing South Australia, Western Australia, Victoria, and southern New South Wales. Although the area is vast, there are regions that have similar soil, climate, and production constraints. The breeding program will focus on two main regions in southern Australia, east and west, until data is analysed to group similar environments across the continent.
Early generation populations will be developed at SARDI. Selection criteria for early generation populations in the eastern region will include agronomic and disease resistance traits. The western region selection criteria for population development in South Australia will be stem and leaf rust resistance. Breeding lines will be evaluated for agronomic, disease resistance, and quality traits at two major sites for Stage 1 yield trials composed of F5 lines, one in Western Australia and one in South Australia. This will be the first opportunity to select adapted lines for the western region. Selections will progress in each region through the program until potential releases are promoted into grain and hay trials conducted by the state department of agriculture’s variety testing programs in South Australia, Western Australia, Victoria, and New South Wales.
The joint initiative for oat breeding in the southern region will provide benefits to oat hay and grain improvement in Australia. Oat grain quality research at SARDI will be enhanced with the unification of the breeding programs due to improved laboratory facilities and personnel capabilities. Moreover, breeding populations for the western region will have improved field evaluation for stem and leaf rust resistance. Grain and hay variety improvement are now integrated into one program with funding from Grains Research & Development Corporation (GRDC), Rural Industries Research & Development Corporation, the state departments of agriculture, and Goodman-Fielder Consumer Foods Pty. Ltd. (produces Uncle Tobys products).
Mr. John Oates retired from the University of Sydney, Cobbitty in April 2001. His contribution to improved stem and leaf rust and BYDV was significant working in the National Cereal Rust Control Program.
CANADA
MANITOBA
No oat lines were proposed for support for registration at the PRRCG Meeting in February 2003. There were two lines advanced to the second year of testing in the 2003 Western Cooperative Oat Test. These lines are suitable for production in the eastern prairies because they carry resistance to barley yellow dwarf virus, loose smut and crown rust. These lines have the Pg13 resistance to oat stem rust, but both are susceptible to stem rust races NA67 and NA76. Both lines have acceptable milling quality.
OT2009 was registered as the cultivar Furlong in June 2003. Furlong yields well in the black soil zone of western Canada, plus has good agronomics with acceptable milling characteristics. Furlong is being jointly marketed by Cargill and Canterra Seed in Canada.
Development of cultivars with resistance to oat stem rust pathotype NA67 continues to be carried out in collaboration with Dr. Tom Fetch (CRC-AAFC, Winnipeg). In 2002, approximately 4200 advanced and early generation breeding lines were evaluated for resistance to NA67. In 2003, approximately 8700 lines are being tested. Lines exhibiting resistance to NA67 in the 2002 nursery and suitable agronomic and quality performance have been entered into a preliminary yield trial grown at 3 locations in Manitoba.
RUSSIA
Taxonomy and specific diversity of genus Avena
L.
* (This research project
was supported by the Russian Foundation for Fundamental Research (grant
No. 02-04-49667)
I.G. Loskutov
N.I. Vavilov Institute of Plant Industry, 44, Bolshaya Morskaya St.,
St. Petersburg, 190000, Russia
e-mail: i.loskutov@vir.nw.ru
Comparative analysis of the whole specific diversity of oats was incited by the profound interest to the use of these forms in taxonomy and breeding practice, enforces by the late development of plant immunological, biochemical and other researches. Practical importance of interspecies hybridization lies in combining properties of different species that drifted apart in the process of evolution. The vast area of distribution of wild oat species provides for the formation of extensive intra-specific diversity of the characters in the polyploidy rank. At the same time, further development of taxonomy and search for and utilization of new oat breeding sources for breeding purposes is one of the objectives pursued by Vavilov Institute of Plant Industry (VIR) in studying its global germplasm collections (Oat Newsletter, v.41, 44, 45, 47).
In the last decades, Avena collection
have been replenished by new accessions and newly described species from
all regions of the Mediterranean and Black sea regions. Presently VIR stores
an oat germplasm collection of 10 000 accessions of 4 cultivated species
and 2 000 accessions including 22 wild species, that comprehensively reflects
the whole spectra of intra- and interspecific diversity of Avena
L. genera (Oat Newsletter, v.48).
The study (1987-2002)
of the representative set (3000 accessions) of accessions of genus Avena L. with different ploidy levels has made it possible
to disclose intra-specific diversity of all characters involved in the research.
After a complex study of major morphological characters
(Oat Newsletter, v.43) and utilization of the karyotype structure data confirmed
by the results of RAPD (Oat Newsletter, v.46) and avenin spectrum analysis,
we have confirmed identification of two basic genomes, which most likely
participated in the formation of species in Avena L., namely the
A and C genomes.
Based on the recent literature concerning the oats
and on the evaluation of 26 species VIR world collection of genus Avena L. under field conditions and different laboratory methods
we have suggested an adjusted classification of the species in Avena
L. genus (Table 1). We have divided this genus into two subgenera, subgen.
Avenastrum and a typical subgen. Avena which, in its turn,
is subdivided into two sections, Aristulatae Malz. ? Denticulatae
Malz. Such division according to the characters of the lemma tip – biaristulate
or Aristulatae and bidentate or Denticulatae.
Sectio
Aristulatae includes diploid species A.clauda, A.pilosa, A.longiglumis, A.prostrata, A.damascena, A.wiestii, A.hirtula,
A.atlantica and cultivated A.strigosa; tetraploid
species A.barbata, A.vaviloviana and cultivated
A.abyssinica. Sectio Denticulatae includes
diploids species A.bruhnsiana, A.ventricosa,
A.canariensis; tetraploid species A.agadiriana,
A.magna, A.murphyi, A.insularis;
hexaploid species A.fatua, A.occidentalis,
A.sterilis, A.ludoviciana and cultivated
A.byzantina, A.sativa.
It is suggested that the evolutionary pathway of species of sectio
of Aristulatae Malz. with cultivated species A.strigosa and A.abyssinica apparently reached
their evolutionary climax. On the basis of detailed morphology, distribution
and ecology we concluded that diploids and tetraploids of Denticulatae
were involved in the evolution of hexaploid wild and cultivated oats.
A revised taxonomic system for the species in the
genus Avena based upon the degree of relationship with hexaploid
species has been developed (Loskutov, 1999).
Based on the law of homologous series in variation
(Vavilov, 1922) a new intra-specific classification system was developed
combining information from both prior taxonomic systems and recent morphological
studies (Loskutov, 1998). Among these traits were the colour of lemma, character
and colour of pubescence. These traits are most useful in Avena
classification. These traits are also of primary importance for identification
of lower taxonomic ranks within a species. Initially, each of these traits
was assessed using the International Descriptors for the genus Avena
L. (1984). The development of an intra-specific classification was based
on characters of the karyopsis. Identification of accessions in accordance
with the system described here will help to improve conservation of the
diversity of wild oat species.
The study of such an representative set of accessions
of genus Avena L. with different ploidy level made it possible
to display intra-specific diversity on all the characters involved. Inter-specific and, especially, intra-specific classification
presently becomes more and more important not only in botanical, breeding
and plant science research, and especially in genebank activities related
to preservation of plant diversity (Loskutov, 2000), but also in genetic
investigations involving molecular technologies (RLFP, RAPD, etc).
Table 1. Key for the identification of Avena
species.
|
1. Perennial plants................................…………...A.macrostachya
Bal. - Annual plants............................................…………..........................2 2. Lemma tips biaristulate.............................................…………........ 3 Lemma tips bidentate or bisubulate...............................……..……….
14 3. Glumes very unequal, lower glume one-half of upper
one...…..…... 4 Glumes equal or nearly so................................................……………..5 4. Disarticulate each floret at maturity...........…………....A.clauda
Dur. Disarticulation occurs
at the lower floret only……….…A.pilosa M.B. 5. Disarticulate each floret at maturity………………………………... 6 Disarticulation occurs
at the lower floret only………………………. 7 6.Glumes till 40 mm long, callus very long, awl shaped 10mm................................……………………… .A.longiglumis Dur. - Glumes 10-20 mm long, callus round or absent……………………................................................................…8 7. Callus elliptic, point of awn exertion in 1/3
of lemma......………………………………………….....A.atlantica Baum - Point of awn exertion in different part of lemma…….......................…..9 8. Disarticulate each floret at maturity.............................................…..10 - Panicle non-shattering.................................................................….
13 9. Spikelets very small 12-15 mm, calm prostrate...…..A.prostrata
Lad. -
Spikelets 20 mm long, calm erect.............A.damascena Raj.
et Baum 10. Lemma tips biaristulate, glumes with 9-10 veins......A.barbata
Pott. - Lemma tips biaristulate
with 1-2 denticula or without, glumes
with 7-9 veins............................................................….................….11 11. Lemma tips biaristulate
with 1 denticulum, lemma tips longer than glumes; first floret scar narrow
elliptic..............…....…....A.hirtula Lag. - Lemma tips biaristulate
with 2 denticula, lemma and glumes
equal or nearly so; first floret scar oval or round............................……………12 12. Lemma tips biaristulate 3-6 mm long....................….A.wiestii
Steud. - Lemma tips biaristulate
1 mm long...….............A.vaviloviana Mordv. 13. Lemma tips biaristulate with 1 denticulum, panicle
erect or flagged…………...................................................…..A.strigosa
Schreb. |
- Lemma tips biaristulate
with 2 denticula, drooped panicle….................................................................A.abyssinica
Hochst. 14. All florets disarticulating at maturity.........................................…....15 - Panical non-shattering.............................................................……...24 15. Disarticulate each floret at maturity...........…………..…………….16 Disarticulation occurs
at the lower floret only……….………………..17 16.Spikelets with 2-3 florets, glumes 23-25 mm long.............A.fatua
L. - Spikelets with 3-4 florets,
glumes 16-20 mm long............................... ..........................................................................….....A.occidentalis
Dur. 17.Callus long linner shape……………………………………………18 - Callus elliptic, oval
or round………………………………………...19 18.Callus 5 mm long, glumes 27-30 mm long..............A.ventricosa
Bal. - Callus 10 mm long, glumes
40 mm long....…...A.bruhnsiana Gruner. 19. Spikelets small size, glumes 15-20 mm long……………………….20 - Spikelets large size,
glumes 25-30 mm long…………………………21 20.Spikelets small size with 2-3 florets, glumes
18-20 mm long ........................................................................….....A.canariensis
Baum - Spikelets very small size with 2 florets, glumes
15-18 mm long..................................................….….A.agadiriana
Baum et Fedak 21. Spikelets medium size with 2 rarely 3 florets,
glumes 25-30mm long......................................................…..........…....A.ludoviciana
Dur. - Spikelets large with
3-5 florets………………………………...……22 22. Spikelets large with 3-4 florets, lemma highly
pubescence…………………………………..A.magna Murphy et Terr. - Spikelets V-formed with
3-5 florets, lemma slightly-moderate pubescent.........................………………………………......A.sterilis
L. 23. Point of awn exertion in 1/4 of lemma, callus
oval...A.murphyi Lad. - Point of awn insertion
in lower 1/3 of lemma, callus elliptical………………………………………………..A.insularis
Lad. 24.Fracture surface at the base of the primary floret
is straighting...................................................................……..A.sativa
L. - Fracture surface at
the base of the primary floret is slanting....................................................................A.byzantina
C.Koch. |
Table 2. Morphotypes of wild and weedy species of
genus Avena L.
|
Colour of lemma |
Hairiness of lemma |
Colour of hairiness |
Morphotypes |
|
white |
Glabrous |
|
albida (Marq.) |
|
|
Pubescent |
|
albescens (Malz.) |
|
grey (black) |
Glabrous |
|
nigra (Marq.) |
|
|
Pubescent |
|
nigrescens (Malz.) |
|
yellow |
Glabrous |
|
flava (Korn.) |
|
|
Pubescent |
|
flavescens (Malz.) |
|
brown |
Glabrous |
|
braunii (Korn.) |
|
|
Pubescent |
light |
genuina (Malz.) |
|
|
dark |
atherantha
(Malz.) |
UDK 633.13:631.527:631.524.86
UNITED STATES OF AMERICA
R. D. Barnett1, A. R. Blount2, P. L. Pfahler3,
J. W. Johnson4,
B. M. Cunfer5, and G. D. Buntin6
1Univ. of Fla,.North Florida REC -
Quincy, 155 Research Rd, Quincy, FL 32351
2Univ. of Fla,.North Florida REC -
Marianna, 3925 Highway 71, Marianna, FL 32446
3Univ. of Fla.,
Dep. of Agronomy, PO Box 110500, Gainesville, FL 32351-0500
4Univ. of Ga., Dep. of Crop and Soil
Sciences, Griffin, GA 30223
5Univ. of Ga., Dep. of Plant Pathology,
Griffin, GA 30223
6Univ. of Ga., Dep. of Entomology,
Univ. of Ga., Griffin, GA 30223.
The University
of Florida and University of Georgia combined their small grain breeding
programs into a single regional project in the early 90’s. Personnel include R. D. Barnett, Breeder- FL: A.
R. Blount, Forage Agronomist- FL; P. L. Pfahler, Genetics- FL: Jerry W.
Johnson, Breeder- GA; Barry Cunfer, Plant Pathology- GA; and David Buntin,
Entomology- GA. Yield Trials are uniform, multiple
location across states. All releases are joint
with royalties being shared. Leadership for the
oat, rye and triticale breeding programs is provided by Barnett at Quincy,
FL and leadership for the wheat and barley breeding programs is provided
by Johnson at Griffin, GA.
“FL9708-P37” was approved for released in 2003.
It is a mid season winter oat that has considerable potential for
both grain and forage production in the South.
FL9708-P37 originated from a cross made in 1997 between a Coker breeding line (Ck92Ab719) and Horizon 314 at the North Florida Research and Education Center at Quincy, Florida. It has the follow