|

|
GEM
- 1997 Annual Report
-
- Over 9000 yield plots were conducted at
or coordinated from Ames, and over 7100 conducted at or coordinated from
Raleigh.
- Eighteen
breeding crosses were selected for advancement in 1997 based on yield and
value-added trait data.
- Over 3200
topcrossed lines will be available for Corn Belt and Southern yield
testing in 1998.
- Approximately 130 S2 or S3
lines from 50% tropical GEM breeding crosses beat the average of
commercial check hybrids in trials analyzed to date.
- GEM's value-added research capacity
expanded with the addition of an NIR to measure starch, oil, and protein
composition and an HPLC to measure protein quality. These acquisitions are
thanks to Les Lewis and Dwayne Buxton (NIR) and Richard Dunkle and
Adrianna Hewings (HPLC).
- Many 50% tropical GEM breeding crosses as
well as advanced S2 and S3 lines had Gray Leaf Spot
resistance equal to the most resistant commercial check hybrid.
- Significant resistance to Fusarium ear
rot was found among advanced progenies of 4 GEM breeding populations;
significant resistance to Aspergillus ear rot was also found in 2 of the 4
populations.
- GEM’s capacity for field research in Ames
expanded with the acquisition of a Gleaner K combine with three-row corn
head (thanks to ISU and Les Lewis) which will be converted to a plot
combine in 1998, and the arrival of a 4-row vacuum plot planter (thanks to
Richard Dunkle) and a tractor (purchased from GEM funds) in time for
planting.
- GEM’s
seed storage capacity in Ames expanded with the acquisition of a cold
storage unit due to the efforts of Les Lewis.
- Two successful field days were held:
September 16 at the CAD Uthe farm in Ames, IA and September 8 at the
University of Wisconsin in Madison.
- GEM
gained three new private cooperators in 1997.
- Six
hundred sixty lines with non-DIMBOA based European corn borer resistance
were evaluated as testcrosses for yield in summer 1997, and 200 of the
most insect resistant were backcrossed to the Corn Belt recurrent line, in
preparation for release.
- A total
of 12 public cooperator projects were partially supported financially by
GEM.
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1996 Cooperator’s Meeting, Chicago, IL
Introduction was presented by Wilfredo Salhuana (TSG Chair). Annual reports
were presented by Linda Pollak (Coordinator), Marty Carson (North Carolina
Project Leader), Susan Duvick (Lab Manager), Eric Wellin (Data Manager) who
presented the 1996 Yield Testing Data Summary book. Preliminary reports were
given by the following public cooperators: John Dudley, John Ayers, Jim
Coors, Gary Munkvold, and Jim Hawk. Neil Widstrom described a new aflatoxin
test using a genetic mutant. One new TSG members was elected: Hiep Pham of
Cargill. Hiep replaces Jim Parks of Wyffels Hybrids whose term expired. We
appreciate his service. Dave Harper discussed lobbying issues, and private
cooperators discussed issues of yield tests and data analysis. A mid-meeting
coffee break gave cooperators an opportunity to network.
Technical Advisory Committee (TAC)
Meetings
December 10, 1996, Chicago, IL: Funding
decisions for public cooperators were approved. David Topel, Dean of the ISU
College of Agriculture, agreed to support GEM with lobbying. Chuck Murphy
was an invited guest who discussed suggestions/ideas for lobbying. According
to Chuck, GEM is viewed favorably by USDA administrators. David Harper,
Randy Holley, and Kevin Montgomery were assigned to rewrite the protocol.
When assigning S1 lines to cooperators to advance, Linda Pollak
will require the cooperator to advance a minimum of 250 lines. When lines
are divided among private cooperators, each private cooperators will send
Linda their S2 selections. Linda will recombine them into the
synthetic for release, with remnant S2 seed destroyed.
February 23, 1997, Des Moines, IA: Dave Harper
with help from other members put materials together in preparation for
testifying before the House of Representatives Agriculture, Rural
Development, Food and Drug Administration, and Related Agencies Subcommittee
on Appropriations on March 12.A lengthy discussion on the protocol was
followed by a decision for Dave to write a new protocol, with later approval
by TSG and cooperators.
May 29, 1997, Chicago, IL: Protocol for
releasing seed was discussed. Lines/synthetics will be released as GEM
lines, using the standard Crop Science release publication and USDA release
procedures. Primary cooperators involved in the breeding effort will be
authors/originators. Seed will be deposited at NSSL (3000k for lines, 7000k
for synthetics), and NCRPIS will curate the seed after its release. A
discussion was initiated on protocol for seed increase of breeding crosses
with insufficient seed for full evaluations and/or breeding. TSG members
were assigned public cooperator projects to visit, and encouraged to visit
as many yield tests as possible. We decided to develop a five year plan for
GEM.
September 17, 1997, Ames, IA: Dean Topel and Ron
Cantrell (Head of ISU’s Agronomy Department) were invited to discuss
interaction between ISU and GEM. Stephen Smith (chair of NPGS Focus Group)
was invited to discuss interaction with the Focus Group, and Leslie Lewis
was invited to discuss interaction between ARS and GEM. All discussions were
extremely beneficial to GEM. The five-year plan is progressing, when further
along it will be available on the web site. Public cooperators will be
encouraged to present their research at an upcoming NCR-167 or interregional
meeting, as well as publishing in refereed scientific journals and in the
yearly GEM data summaries. Wilfredo Salhuana presented a progress report on
international GEM. All members agreed to proceed on regeneration of
promising breeding crosses with insufficient seed supply.
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Eric Wellin resigned as Data Manager
effective January 29, 1997.He was replaced by Timothy Johnson who started on
July 6, 1997.Mary Runde resigned as Field Technician during August 1996 and
was replaced by Randy Ritland who started on December 9, 1996. Nuo (Mack)
Shen started as a Research Food Technologist (postdoctoral) on February 2,
1997 to work on quality and stability of oils with altered fatty acid
content. Luiz Michelini arrived in Iowa from Brazil on January 6, 1997 to
work as a postdoctoral visiting scientist.
-
Presentation of
Results of 1996 GEM Yield Testing at NCR-167 by Linda Pollak, Des Moines
IA, February 24.
-
Article in Spring Corn Farmer.
-
Mentioned in Bob Streit’s column in April 11’s
Farm News.
-
Presentation of Enhancement of oil quality
through introgression by Pamela White at American Oil Chemists Annual
Meeting, Seattle WA, May 11-14.
-
Publication of Incorporation of exotic germplasm into
elite maize lines: Maximizing favorable effects of the exotic sources by
Major Goodman in C. Clark Cockerham memorial issue of J. of Math. Biology.
-
Distribution of Report of U.S. Germplasm Enhancement
for Maize Project (US-GEM) Executive Summary by Wilfredo Salhuana.
-
Publication of Thermal
properties of corn starch extracted with different blending methods:
Microblender and Homogenizer by K.M. Krieger, S.A. Duvick, L.M. Pollak,
and P.J. White Cereal Chem. 74:553-555.
-
Featured (cover story) in ARS’s September
Agricultural Research magazine.
-
Presented laboratory and field tours to the National
Plant Germplasm System Customer Focus Group meeting on September 8.
-
Poster display at ISU Agronomy Day on September 11.
-
Press releases issued by American Genetic Resources Alliance, ARS, and ISU
in September.
-
Interview of Linda Pollak by Rich Hawkins, WHB Radio, Kansas City on
October 6.
-
Interview of Linda Pollak by Colleen Callahan, WMBD Radio, Peoria IL on
October 9.
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Article in October 9’s The Country Today.
-
Interview of Linda Pollak by Mark Steil, Minnesota
Public Radio on October 10.
-
Publication of Thermal properties of starch from 62
exotic maize (Zea mays L.) lines grown in two locations by K.-Y. Ng, L.M.
Pollak, S.A. Duvick, and P.J. White in Cereal Chem. 74:837-841.
-
Article in November’s Soybean Digest.
-
Poster display at Iowa Seed Association annual
meeting, November 19-20, Ames, IA.
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September 16, 1997, Ames, IA: The field day was
held at the Committee for Agricultural Development’s Uthe Farm. The Central
Iowa Field day was held at the same location on September 17-18.Having our
field day held in association with the Central Iowa Field Day meant that
attendance by commercial people increased significantly over the three days.
On September 16 official greetings from USDA-ARS came from Midwest Area
Director, Richard Dunkle, Associate Director Adrianna Hewings, and Corn
Insects and Crop Genetics Research Leader Leslie Lewis. Official greetings
from Iowa State University came from Ron Dean David Topel. Official
greetings from GEM came from TSG chair Wilfredo Salhuana. Posters or
presentations were given by Craig Abel, Gary Munkvold, Susan Duvick, Darren
Jarboe for Iowa Grain Quality Initiative, Suvrat Singh working with Larry
Johnson, and Paul Scott. Featured GEM breeding materials were value added
trait selections, new breeding crosses, non-DIMBOA corn borer resistant
lines, and breeding crosses being advanced to S2 lines, as well
as a demonstration of breeding progress in exotic and Corn Belt materials.
September 8, 1997, Madison WI: Jim Coors was the
host for this field day which was part of the University of Wisconsin Corn
Breeding and Genetics Open House held at the West Madison Experiment Farm.
Jim’s silage work using GEM breeding materials was highlighted.
Public Cooperators’
Data
Status of 1996 Public
Data: All submitted public cooperator data summaries have been placed in
a booklet format. Applicable yield data has been added to our yield trial
database, to allow printing along with yield data (for example, ratings of
breeding crosses for gray leaf spot are available for printing on yield data
analyses). Submitted data from individual cooperators is available upon
request. They are on separate sheets of one Excel 6.0 workbook; this file is
available to anyone who desires a copy.
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Public GEM Cooperators
Supported in 1997
|
Name
|
$ Funded
|
Research
Supported
|
|
John Dudley
|
6000
|
Evaluation of tropical accessions as sources of genes to improve a
Corn Belt hybrid for grain yield and disease resistance
|
|
Gary Munkvold
|
5000
|
Fusarium ear rot resistance screening of GEM germplasm
|
|
Paul Williams
|
3500
|
Evaluation of breeding crosses for aflatoxin
|
|
Paul Scott
|
2700
|
Evaluation for protein quality
|
|
James Coors
|
5060
|
Silage potential of temperate maize germplasm
|
|
Margaret Smith
|
5650
|
Anthracnose stalk rot resistance from exotic maize germplasm
|
|
Craig Abel
|
5110
|
Topcrossing of non-DIMBOA European corn borer resistant lines
|
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Jim Hawk (breeding)
|
5000
|
Evaluation of 50% Corn Belt:50% LAMP and 75% Corn Belt:25% LAMP
accessions for drought resistance
|
|
Robert Lambert
|
5000
|
Development of GEM corn lines with multiple disease resistance, starch
content, and grain yield
|
|
Dean Barry, Bruce Hibbard, Larry Darrah
|
6245
|
Evaluation and development of GEM materials for European corn borer,
western corn rootworm, rind penetrometer, and vertical root pulling
resistance
|
|
Jim Hawk
|
5000
|
Southern yield tests
|
|
Neil Widstrom
|
5000
|
Southern yield tests
|
|
Dennis West
|
5000
|
Southern yield tests
|
|
ARS Overhead
|
735
|
|
|
TOTAL
|
60000
|
|
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Ames,
IA Breeding Program
1997 Iowa:
Breeding Crosses Selfed
to S1’s
|
Pedigree
|
# Rows
|
Reason for Selection
|
|
AR03056:N09
|
133
|
high yield in 96522 and 23, Bo-Jac only got
299 S1's last winter
|
|
Cuba117:S15
|
133
|
high yield, high protein (both endosperm
and germ protein) in 96121;high protein and oil and low yield (high
germ. prot) in 96120
|
|
AR16035:S19
|
133
|
high yield in 96520, high oil
|
|
UR13088:S0607
|
133
|
high starch and high protein (high
endosperm protein)
|
|
CUBA117:S1520
|
133
|
high protein high oil low yield (high germ
protein)
|
|
CUBA164:S1511b
|
133
|
high protein
|
|
AR13026:S15
|
133
|
high protein high oil
|
|
FS8B(T):N11a08a
|
133
|
high yield in 96533
|
|
Total Selfing Rows
|
1064
|
|
|
S1's of Breeding Crosses for Advancement
to S2’s
|
|
Pedigree
|
# Rows
|
Reason for Selection
|
|
AR16035:S02
|
676
|
high protein high oil (81 S2’s selected)
|
|
AR16035:S02
|
80
|
high oil (from Novartis)
|
|
SCROGP1:N1310
|
509
|
high protein high yield in 96132 (50 S2’s
selected)
|
|
CUBA164:S2008a
|
558
|
high yield 96131 (56 S2’s selected)
|
|
CUBA164:S15
|
649
|
high yield 96120 high oil (85 S2’s
selected)
|
|
AR01150:N04
|
233
|
share with Darrah and Hallauer (from
Cargill)(35 S2’s selected)
|
|
FS8B(T):N1809
|
190
|
share with Cargill and Growmark (from
Growmark)(14 S2’s selected)
|
|
DKB844:S1601
|
21
|
share with NC+ and Hoegemeyer (from NC+) (7
S2’s selected)
|
|
CHIS775:N1912
|
213
|
share with Wyffels and Gutwein (from
Wyffels) (32 S2’s selected)
|
|
DKB844:N11b
|
164
|
high yield in 96123 high oil, replication
of Limagrain (31 S2’s selected)
|
|
AR13035:S11b
|
46
|
high oil (from Novartis)
|
|
AR16021:S08b
|
50
|
high oil (from Novartis)
|
|
FS8B(T):N11a
|
71
|
high oil (from Novartis)
|
|
UR10001:S18
|
64
|
high oil (from Novartis)
|
|
UR13010:S13
|
57
|
high oil (from Novartis)
|
|
UR13085:N02
|
42
|
high oil (from Novartis)
|
|
AR16035:S19
|
77
|
high oil (from Novartis)
|
|
Total S1 Rows
|
3700
|
|
Back
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‘97Puerto Rico Nursery:12 rows increasing CIMMYT
lines for new breeding crosses, 200 rows for value-added trait work, 43 rows
for regeneration of breeding crosses with insufficient seed supply, 160 rows
selfing and crosses of high protein lines (for line development, seed
increase for poultry feeding study, and heritability studies). Planted
November 20.
’97 Puerto Rico Isolations: Stiff Stalk
318 total female rows: 193 S2’s of public cooperators, 86 Ames S2’s,
31 LAMP lines, and 8 new breeding crosses. Non-Stiff Stalk 359 total
female rows:115 S2’s of public cooperators, 221 Ames S2’s,
14 LAMP lines, and 9 new breeding crosses.
Southern GEM,
Raleigh, NC
(M.
L. Carson, M. M. Goodman, V. A. Brewster)
Yield Trial Plots:2850 plots in NC; 4294 plots with 9 Cooperators
(N. Widstrom, USDA Tifton, GA; D. West, U. of Tennessee; J. Hawk, U.
Delaware; P. Williams, USDA Mississippi State; C. Poneleit, U. Kentucky;
R. Holley, Novartis Seeds, Henderson, KY; T. Morgan, Dekalb Genetics, Mt.
Olive, NC; B. Anderson, Pioneer Hybrid Int., Union City, TN; MGR, Angier,
NC.Also, special thanks to K. Martin, Pioneer Hybrid Int. for help in
harvesting plots at Tifton, GA).
Summer Nursery Plots:350 selfing rows; 1600
topcross rows (isolations + paired rows),1000 observation rows, 1164 Gray
leaf spot trial rows, 1122 ear rot (Fusarium + Aspergillus) trial rows, 100
misc. disease trial rows.
Winter Nursery Plots (97-98):835 selfing rows;
115 paired rows (Puerto Rico w/ L. Pollak).
Preliminary Yield Trial Results: Approximately
130 S2 or S3 lines from 50% tropical GEM breeding crosses beat the average
of commercial check hybrids in trials analyzed to date (approx. 75% of
results are now analyzed).
Preliminary Disease Trial Results: Many 50%
tropical GEM breeding crosses as well as advanced S2 and S3 lines had Gray
Leaf Spot resistance equal to the most resistant commercial check hybrid.
Significant resistance to Fusarium ear rot was found among advanced
progenies of 4 GEM breeding populations; Significant resistance to
Aspergillus ear rot was also found in 2 the 4 populations.
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Private In-kind Nursery Support - Summer, 1997
| Company |
Nursery Rows Pledged |
Rows Will Do |
Populations |
Populations From |
| Bo-Jac |
200 |
Advance 2 BC's |
AR16021:S0908bBR52051:N0412
|
|
| Cargill |
250 |
500 |
FS8B(T):N1809 |
Growmark |
| DeKalb |
500 |
Remaking S1's |
CHIS740:S1411a |
|
| FFR Coop |
50 |
Advance 1 BC |
DK212T:N11a10 |
|
| Gutwein |
150 |
250 |
CHIS775:N1912 |
Wyffels |
| Global Agro |
200 |
Advance 2 BC's |
AR16035:S19 BR51501:N11a08d |
|
| Golden Harvest |
500 |
Remaking S1's |
AR16026:S17 |
|
| Great Lakes |
200 |
489 |
UR13085:S1912 |
Great Lakes |
| Growmark |
0 |
250 |
FS8B(T):N1809 |
Growmark |
| Hoegemeyer |
300-400 |
250 |
DKB844:S1601 |
NC+ |
| Holdens |
500 (1000 Short) |
575 |
UR10001:S1813 |
Pioneer |
| ICI |
500 |
349 |
AR16026:S1719 |
ICI |
| Jung Farms |
400 |
Advance 2 BC's |
CASH:N1410UR13085:N0215
|
|
| Limagrain |
500 |
163 |
DKB844:N11b |
Limagrain |
| NC+ |
200 |
250 |
DKB844:S1601 |
NC+ |
| Novartis |
500 |
|
From Major |
|
| Pioneer |
800 |
750-800 |
Cuba164:S2008a |
Pioneer |
| Wyffels |
250 |
250 |
CHIS775:N1912 |
Wyffels |
| Public |
| Darrrah |
|
300 |
AR01150:N04 |
DeKalb |
| Hallauer |
|
250 |
AR01150:N05 |
DeKalb |
| Hawk |
|
<800
676 |
DKXL212:N11a
BR51501:N11a12 |
Limagrain
Gutwein and Great Lakes |
Back
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Private In-kind Nursery Support -- Winter 1997-98
| |
|
Company
|
Nursery Rows Pledged
|
Comments
|
|
Bo-Jac
|
100
|
Regenerating breeding crosses
|
|
Cargill
|
100
|
Topcrossing 100 S2's of FS8B(T):N1809 from
Cargill Making breeding crosses
|
|
DeKalb
|
150
|
151 S2's of AR01150:N04 from Darrah,
Hallauer, Pollak
|
|
FFR Coop
|
20
|
Making breeding cross
|
|
Golden Harvest
|
150
|
Regenerating breeding crosses
|
|
Great Lakes
|
200
|
Topcrossing 100 S2's of UR13085:S1912 from
Great Lakes Regenerating breeding crosses
|
|
Growmark
|
100
|
Topcrossing 50 S2's of FS8B(T):N1809 from
Growmark
|
|
Hoegemeyer
|
50
|
Topcrossing 50 S2's of DKB844:S1601 from
Hoegemeyer
|
|
Holdens
|
200
|
Topcrossing 115 S2's of UR10001:S1813 from
Holdens Regenerating breeding crosses
|
|
ICI
|
100
|
Topcrossing 140 S2's of AR16026:S1719 from
ICI
|
|
Limagrain
|
100
|
Topcrossing 35 S2's of DKB844:N11b from
Limagrain and 31 from Linda
Regenerating breeding
crosses |
|
NC+
|
100
|
Topcrossing 50S2's of DKB844:S1601 from NC+
Regenerating breeding crosses
|
|
Novartis
|
100
|
Materials from Major Goodman
Making breeding crosses |
|
Pioneer
|
300
|
Topcrossing 116 S2's of CUBA164:S2008a from
Pioneer Advancing CHIS775:S1911b to S1's
|
|
Wyffels
|
100
|
Topcrossing 50 S2's of CHIS775:N1912 from
Wyffels and 32 from Linda
|
|
Crow's
|
100
|
Advancing DKXL370:N11a20 to S1's
|
|
Pau
|
|
Making breeding crosses
|
|
Wilson Seeds
|
100
|
Making breeding crosses
|
Back
to Top
Breeding Crosses Advanced Summer
1997 and Winter 1997-98
|
Breeding Cross
|
Cooperator
|
|
AR03056:N09
|
Linda Pollak
|
|
Cuba117:S15
|
Linda Pollak
|
|
AR16035:S19
|
Linda Pollak
|
|
UR13088:S0607
|
Linda Pollak
|
|
CUBA117:S1520
|
Linda Pollak
|
|
CUBA164:S1511b
|
Linda Pollak
|
|
AR13026:S15
|
Linda Pollak
|
|
FS8B(T):N11a08a
|
Linda Pollak
|
|
AR16021:S0908b
|
Bo-Jac
|
|
BR52051:N0412
|
Bo-Jac
|
|
DK212T:N11a10
|
FFR
|
|
AR16035:S19
|
| |