Group Title: Research report (North Florida Research and Education Center (Quincy, Fla.))
Title: Florida 304 - A new hessian fly resistant soft red winter wheat
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Permanent Link: http://ufdc.ufl.edu/UF00066104/00001
 Material Information
Title: Florida 304 - A new hessian fly resistant soft red winter wheat
Series Title: Research report (North Florida Research and Education Center (Quincy, Fla.))
Physical Description: 11 leaves : ill. ; 28 cm.
Language: English
Creator: Barnett, Ronald David, 1943-
Pfahler, P. L ( Paul Leighton )
Soffes, Ann Rachel, 1957-
North Florida Research and Education Center (Quincy, Fla.)
Publisher: North Florida Research and Education Center
Place of Publication: Quincy Fla
Publication Date: 1992
 Subjects
Subject: Wheat -- Florida   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
Statement of Responsibility: R. D. Barnett, P. L. Pfahler, and A. R. Soffes.
General Note: Caption title.
 Record Information
Bibliographic ID: UF00066104
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 71172522

Full Text





University of Florida
S'Institute of Food and Agricultural Sciences
North Florida Research and Education Center '
Quincy, Florida

Quincy NFREC Research Report NF-92-12


Florida 304 A New Hessian Fly Resistant
Soft Red Winter Wheat
R. D. Barnett, P. L. Pfahler, and A. R. Soffes


Wheat is an important component in the multiple-cropping
minimum-tillage systems widely used in Florida. The acreage and
production has fluctuated over the years but reached a record high
in 1985 when 130,000 acres produced 4,290,000 bushels worth
$12,913,000 in Florida. The acreage has declined in the last few
years to 40 50,000 acres primarily due to low grain prices.

Florida 304 is a medium maturing soft red winter wheat. It
was developed by the University of Florida at the North Florida
Research and Education Center at Quincy. This cultivar is high
yielding, has a high test weight, is medium in height, has
excellent resistance to leaf rust and Hessian fly. It is
susceptible to powdery mildew, soil borne mosaic virus, and
bacterial streak.

Florida 304 was selected from a cross made in 1981 between a
Florida breeding line FL74265-10-A2-B2 and a Coker breeding line
Coker 80-29. The Florida line has the following pedigree:
Predgornaia 2/3/Blueboy II/Coker 68-8//Fulbarn. Predgornaia 2,
which originated from Romania was selected from the 1973
International Winter Wheat Rust Nursery as a source of leaf rust
resistance. Fulbarn is a germplasm release from Oklahoma State
University that also carries additional leaf rust resistance genes.
Coker 80-29 was an experimental Northrup King line that was never
released but was used extensively as a parent. It has the
following pedigree: Coker 68-15*2//Chancellor*8/Chul. Florida 304
was developed utilizing a pedigree system with selection occurring
in the F3 and F4 generations and originated from a single F5 head row
grown in 1987 at Quincy. It was tested experimentally as FL8172-
G98-L5.

Florida 304 was first yield tested in 1988 in a preliminary
yield test (Table 1). In 1989 and 1990 it was included in an
advanced yield trial at two locations (Tables 2-5). In 1991 and
1992 it was put in our state variety trials (Tables 6-9). A
summary of 5 years of performance trials in Florida is presented in









Table 10. A summary of the performance of Florida 304 in the
Uniform Southern Regional Nursery is presented in Table 11 and its
performance in other states in Table 12. It has performed very
well with good yields and excellent test weights. Additional
strong points would be Hessian fly resistance and leaf rust
resistance. Florida 304 was resistant to powdery mildew when we
began increasing it but its resistance broke down this past year
and we would now call it moderately susceptible to powdery mildew.
Florida 304 is similar in height to Florida 302. Even though it
heads out several days later than Florida 302, it normally matures
several days earlier than Florida 302. It has a high vernalization
requirement and does not do well with a late planting date. It is
bearded like Florida 302 but does not exhibit the multiple spikelet
character of Florida 302. The seed are smaller than Florida 302
but more uniform so it has an excellent test weight.

Application for plant variety protection will be filed with
the USDA Plant Variety Protection Office specifying that seed of
Florida 304 is to be sold by variety name only as a class of
certified seed. Seed of Florida 304 has been shared with
Foundation organizations in South Carolina, Georgia, Alabama, and
Louisiana with a stipulation that a research fee will be collected
on all classes of seed sold. Classes will be Foundation,
Registered, and Certified. Approximately 3,000 bushels were
available for distribution during the Fall of 1992 by the Florida
Foundation Seed Producers, Inc., P. O. Box 309, Greenwood, Florida
32443.























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Flow Diagram in Development of Florida 304


Year Generation

1981 Fo Final cross made in greenhouse
at Quincy
1982 Fi Grown in greenhouse as a bulk

1983 F2 Grown in field at Quincy as a
bulk
1984 F3 Individual plants were grown in
the greenhouse and screened
extensively for leaf rust.
1985 F4 Grown in field as plant rows.
Single heads were harvested from
plant rows.
1986 -- Stored on shelf for 1 year.

1987 F5 Grown as a head row in field at
Quincy
1988 F6 Preliminary yield trial
(1 location 2 reps)
1989 F7 Advanced yield trial
(2 locations 4 reps)
1990 F8 Advanced yield trial
(2 locations 4 reps)
1991 F9 State yield trial (3 locations -
4 reps) and regional trials
1992 Fo1 State yield trial (3 locations -
4 reps) and regional trials









Table 1. Performance of selected entries in the
Wheat C Test grown at Quincy, Florida.


1988 Preliminary


Grain Rank in Test Heading Plant
Entry yield yield weight date Lodging eki4t

-bu/A- -Ibs/bu ---%--- inches

Florida 301 63.0 33 59.0 4-1 10 44
Florida 302 71.8 3 56.0 4-14 1 38
Traveler 62.7 34 58.0 4-7 0 35
Florida 303 69.8 6 58.5 4-1 3 37
Florida 301H 59.8 44 58.5 4-1 48 43
Florida 304 71.4 4 61.0 4-13 0 38

Grand mean 62.5
LSD.05 15.0
C.V. 12.0%


Planted 12-2-87, 2 replications, 60 entries.




Table 2. Performance of selected entries in the 1989 Advanced
Wheat Test grown at Quincy, Florida.


Grain Test Heading Plant Padry*
Entry yield weight Date Lodging Height mildew

bu/A lbs/bu ---%--- inches

Florida 301 33.8 54.0 3-19 28 33 4
Florida 302 43.8 51.5 3-30 23 34 4
Traveler 30.0 49.0 3-30 8 32 6
Florida 303 33.8 55.0 3-18 35 28 2
Florida 301H 27.9 56.0 3-19 37 31 8
ATW 270 38.5 56.5 3-18 32 30 7
Florida 304 33.3 56.5 3-23 25 37 0

Grand mean 29.8
LSD05 6.5
C.V. 15.7%


Planted 12-7-88, 4 replications, 60 entries.
*0 = no disease, 9 = severe disease.









Table 3. Performance of selected entries in the 1989 Advanced
Wheat Test grown at Marianna, Florida.


Powdery* Leaff Hessiant
Entry mildew rust fly rating

Florida 301 5 S 3
Florida 302 4 S 4
Traveler 6 S 4
Florida 303 0 MR 3
Florida 301H 5 S 1
ATW270 5 MR 3
Florida 304 0 R 2

Planted 12-20-88, 4 replications, 60 entries. Very heavy Hessian
fly pressure-test did not do well due to late planting no grain
was harvested.

*0 = no disease, 9 = severe disease.
tS = susceptible, MR = moderately resistant, R = resistant.
$0 = Ratings are on 0-5 scale, 0 = no symptom of Hessian fly, 5
'severe stunting from Hessian fly.


Table 4. Performance of selected entries in the
Wheat Test grown at Quincy, Florida.


1990 Advanced


Grain Rank in Test Heading Plant Leaf*
Entry yield yield weight date height rust

bu/A lbs/bu inches

Florida 301 41.9 19 57.4 3-27 39 5MR
Florida 302 37.4 33 52.3 3-31 34 50S
Traveler 33.4 41 52.5 3-20 32 30S
Florida 303 38.5 29 56.1 3-24 33 5R
Florida 301H 42.8 15 55.4 3-25 38 20S
ATW 270 36.7 35 51.4 3-26 36 10R
Coker 9766 42.2 17 53.1 4-4 37 20S
Florida 304 42.8 14 57.3 3-24 35 5R

Grand mean 39.5
LSD05 9.6
C.V. 14.9%


Planted 12-1-89, 3 replications, 45 entries.
*Leaf rust rating are by modified Cobb Scale. Number = severity,
letter = response. R = resistant, MR = moderately resistant, S
susceptible.
















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Table 6. Performance of selected entries in the 1991 State Variety
Test grown at Quincy, Florida.


Heading Powdery*
Entry date mildew

Florida 301 3-26 4
Florida 302 4-11 6
Traveler 4-5 6
Florida 303 3-27 6
Florida 301H 3-26 5
ATW 270 3-26 6
Florida 304 4-14 0


Planted 12-13-90, 5 replications, 48 entries.
*Scale = 0-9, 0 = no disease, 9 = severe disease.
Twenty plus inches of rainfall at harvest time prevented grain
yield data collection.


Table 7. Performance of selected entries in the 1991
Test grown at Marianna, Florida.


State Variety


Grain Test Heading Leaf*
Entry yield weight date rust

bu/A lbs/bu

Florida 301 23.1 48.0 3-14 0
Florida 302 9.8 45.5 3-22 40S
Traveler 22.6 47.7 3-21 60S
Florida 303 13.5 48.6 3-13 20R
Florida 301H 26.4 50.6 3-14 20R
ATW 270 27.3 49.9 3-15 30R
Florida 304 21.9 48.6 4-7 0

Grand mean
LSD05
C.V.


Planted 11-30-90, 4 replications, 48 entries. Heavy rainfall at
harvest.
*Leaf rust rating are by modified Cobb Scale. Number = severity,
letter = response. R = resistant, S = susceptible, 0 = no disease.









Table 8. Performance of selected entries
Test grown at Quincy, Florida.


in the 1992 State Variety


Grain Test Heading Plant Ptdery
Entry yield weight date height Lodging mildew

bu/A lbs/bu inches ---%---

Florida 302 65.4 61.0 4-2 43 15 4
Traveler 64.2 60.7 3-25 41 12 4
Florida 303 61.9 61.5 3-17 38 1 1
Florida 301H 56.4 62.1 3-14 41 10 5
ATW 270 60.8 61.3 3-16 41 17 3
Florida 304 68.3 61.1 4-3 44 4 0

LSD05 9.0
C.V. 10.0%


Planted 11-27-91. 4 replications, 48 entries.
*Scale 0-9, 0 = no disease, 9 = severe disease.



Table 9. Performance of selected entries in the 1992 State Variety
Test Grown at Marianna, Florida.


Grain Test Heading Plant Pada~y
Entry yield weight date height Lodging mildew

bu/A lbs/bu inches ---%---

Florida 302 75.5 53.6 4-12 41 0 3
Traveler 71.1 55.6 4-6 41 0 4
Florida 303 78.4 55.9 3-29 42 0 3
Florida 301H 69.9 56.0 3-30 49 20 3
ATW 270 72.3 56.0 3-30 44 0 2
Florida 304 76.0 54.7 4-14 43 0 2

LSD05 13.5
C.V. 16.5%


Planted 12-16-91. 4 replications, 48 entries.
*Scale 0-9, 0 = no disease, 9 = severe disease.









Table 10. Summary of 5 years of performance trials in Florida 1988-
1992.


Grain* Test*
Entry yield weight

bu/A lbs/bu

Florida 302 45.5 53.2
Traveler 43.9 53.7
Florida 303 48.5 55.8
Florida 301H 45.7 56.2
Florida 304 53.6 56.6


*Average of 7 location-years.



Table 11. Summary of performance of Florida 304 in 1991 Uniform
Southern Soft Red Winter Wheat Nursery.


Grain yield Julian
southern Test heading
Entry region* weight date Height

bu/A lbs/bu inches

Florida 302 29.1 50.1 113.0 35.7
Saluda 33.5 53.2 110.3 33.6
Coker 9733 33.7 55.1 115.5 37.7
Florida 304 34.7 52.2 113.4 36.0


Average from following 20 locations: Warsaw, Virginia; Overton,
Texas, St. Matthews, SC; Florence, SC, Clemson, S. C; Clayton, NC;
Portageville, MO; Quantico, MD; Baton Rouge, LA; Lexington, KY;
Princeton, KY; Parson, KS; Princeton, IN; Griffin, GA; Tifton, GA;
Belle Mina, AL; Normal, AL; Bay, AR, Keiser, AR, and Marianna, FL.









Table 12. Grain yield in bushels per acre of selected entries grown
in other southern states in 1991 and 1992.

1991 1992
AR GA SC AR GA MS LA NC

Florida 302 49.3 24.1 34.5 85.9 -- 60.7 63.7 75.4
Florida 303 52.3 -- 35.5 79.0 61.5 58.2 64.8 --
Florida 304 53.7 29.9 33.7 87.6 60.6 61.7 66.9 58.2

No. of
Locations 7 5 5 5 5 11 5 5




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