**2008 Crop**

**Micro Milling and Baking Evaluation**

**Set 2008 M06**

**Northern Uniform Winter Wheat Scab Nursery**

**Herb Ohm, Purdue University, W. Lafayette IN: Entries \#** 810457 to
\# 810516

A total of 60 samples were grown by Purdue University in Indiana for
this regional cooperative nursery sponsored by the US Wheat and Barley
Scab Initiative. Funding for the evaluation was provided by the USWBSI.
The standard data is compared to the "historical average" for the
cultivar, and quality scores for all entries are adjusted to this
average. The samples in this nursery were compared to entry Truman. Of
the 767 cultivars in the SWQL database of Allis-milled cultivars, Truman
ranks 552^nd^ for Milling Score based on data from 2 millings. The
following table compares three checks, Truman, Freedom, and Pioneer
2545, with their "historical data" from the Micro Milling databases. In
general, the three checks were within two standard deviations of the
mean of their database average. The exception is the test weight of
Truman is significantly less than the database average (See the table
below). Most of the samples were weathered (exposed to moisture after
harvest). They did not appear to be sprouted, however the flour yield
was less than average with significantly greater sucrose SRC value for
Truman a slight elevation in Freedom. As a result, the results of this
trial are likely to be internally consistent for milling
characteristics. However, the ranking for sucrose SRC may have some
cross-over GxE effects that may limit a breeder's ability to select
heavily using that measure in this test. As a set, the nursery average
for flour yield and flour quality was similar to Truman with better
baking scores than Truman, due primarily to the elevated sucrose SRC of
Truman.

**Northern Uniform Winter Wheat Scab Nursery**

  ---------- --------- ---------------- --------- --------- -------- ------- ------- -------- ------- -------- ---------
  SAMPLE               ENTRY            MILLING   BAKING    SOFT.    TEST    ADJ.    SOFT.    FLOUR   LACTIC   SUCROSE

  NO.                                   QUALITY   QUALITY   EQUIV.   WT.     YIELD   EQUIV.   PROT.   ACID     SRC

                                        SCORE     SCORE     SCORE    LB/BU   \%      \%       \%      SRC      \%

                       Nursery Average  62.8      59.1      59.4     60.00   68.0    56.6     8.48    88.7     88.12

                                                                                                                

                       Truman           62.64     38.00     64.14    60.02   67.99   58.24    7.99    83.82    99.35

  Database   Average   Truman           62.4      58.7      64.7     61.6    69.0    55.4     8.7     86.0     82.4

  Database   St. Dev   Truman           4.0       16.5      5.9      0.5     1.1     3.2      1.0     5.8      1.7

                                                                                                                

                       Freedom          68.43     71.69     59.87    59.34   69.15   56.74    8.33    77.04    83.15

  Database   Average   Freedom          60.7      63.2      61.7     59.8    69.1    53.3     8.7     79.0     80.9

  Database   St. Dev   Freedom          6.2       16.5      5.9      0.9     1.3     1.8      0.5     5.5      2.2

                                                                                                                

                       Pioneer 2545     51.34     59.75     53.42    59.34   65.74   54.49    8.72    80.54    85.88

  Database   Average   Pioneer 2545     52.7      56.2      72.2     60.3    67.3    56.6     9.0     87.3     85.6

  Database   St. Dev   Pioneer 2545     4.8       22.2      11.5     0.6     0.9     2.2      0.5     6.1      2.7
  ---------- --------- ---------------- --------- --------- -------- ------- ------- -------- ------- -------- ---------

Milling yield is the most heritable of the traits that we evaluate. In
this set lines with milling yield marked with a Q or a '\*' are poor for
milling quality; that is, their flour yield is likely significantly less
than Truman, which is near the lower range of the targeted milling
yield. The line KY97C-0321-05-2 is unusual in having a 40% flour
extraction. We will remill the sample and see if it is what it seems to
be. Lines with softness equivalent values below 50% are generally
considered to be poor for a wide range of soft wheat products. They tend
to be particularly poor for cakes.

Within this nursery the lines with the best combination of milling
yield, softness equivalence, and sucrose SRC are: MSU LINE E5011, MO
050921. NYCALRESEL-L, NYW103-1-9100, SE93-1094-8, OH03-235-2 and
OH02-7217. The lines with very high softness equivalent (56% and
greater) and low sucrose SRC (less than 90%) likely are well suited to
cake applications. The lines SE89-1873-2, OH03-235-2, M04-4802, and
KY00C-2059-16 had generally good milling and flour quality with greater
than normal gluten strength as measured by lactic acid SRC. These lines
may have some specialty applications for products such as crackers.

Coupling the Fusarium head blight resistance information to the quality
data will give an index for selecting crossing parents. Among the lines
with lower FHB index than Freedom, the following lines had the best
milling and flour quality: IL04-10118, IL04-10721, IL04-10741,
KY00C-2143-08, M03-3616-B11, MO 050921, and OH02-7217. The milling and
flour quality selection was based on adjusted flour yield, softness
equivalent, and sucrose SRC.

Please contact me if you have questions concerning these evaluations.

Best regards,

Edward Souza