1999 Pa. Commercial Hybrid Test Reports
Short-season hybrids
(Maturity Zone 1) 1999 results
How to use this report
This report provides independent and unbiased information
(or the evaluation of commercial com hybrids available in
Pennsylvania. It should be used to supplement other sources
of information, such as seed industry performance tests, other Tests of commercially available corn hybrids are conducted
independent testing data, and on-farm performance records annually at several locations in each of the four maturity zones in
when making hybrid selection decisions. Pennsylvania to provide farmers, seed producers, cooperative
The first factor to consider when using this report is extension agents, and other interested persons with information
hybrid maturity. The hybrids listed in Tables 1,3, and 4 are about hybrid performance. This report includes both the grain
ranked in ascending order by grain moisture with the earliest and silage results from the 1999 season,
hybrids (lowest grain moisture) at the top. In Table 2, hybrids Table 1 contains the combined results for all locations
are listed alphabetically. Grain or silage moisture is a good harvested in this zone. Table 2 contains the yield data generated
indicator of hybrid maturity; those with lower moisture are at eac |, location. We believe that the statewide performance
generally adapted to shorter season environments. Identify averages found in Table 1 are most important to consider when
hybrids in the list that you know are adapted to your area, making a final decision about variety capabilities, since they
and then evaluate new hybrids that have similar moisture
contents. Selecting hybrids based on yield alone may result
in a hybrid that is too late for your farm. Note that there is
considerable range among maturity in hybrids entered in each
zone. Once you have identified the appropriate hybrid
maturity range, compare the yields of the hybrids that have
been evaluated
Yield performance is variable across locations and is best
predicted by using data averaged over multiple locations, so
the mean yield overall sites is the best guide to hybrid
performance. Individual location hybrid means (Table 2) can
help to assess how consistent, or stable, the hybrid was across
locations. For example, some hybrids may do well at high
yielding sites but may not do well at low-yielding sites. We
DO NOT recommend using data from a single site, even if it
is close to your farm, to make hybrid selection choices.
Once you have identified some prospective hybrids,
consider their standability from the erect plants column as
well as any disease rating data that may have been collected.
It also is important to check with a seed company representa
tive about other characteristics of the hybrid that may be
important for your operation.
Once you have gone through this process, you should be
Have you been looking for great yields
from your corn? Then look no more, because
we've found just what you need. We now
have new hybrids of Roundup Ready con
giving you more total hybrids to choose
for the 2000 planting season.
As you know, good hybrid selection o
help you maximize corn yields by
providing the very best match for your
specific farming conditions. With so manj
hybrids, you can select the right one to
respond to your soil type, moisture level,
and tillage and planting methods. So dor
delay - discover the latest hybrids of
Roundup Ready corn, and see what they
can do for you.
ALWAYS READ AND FOLLOW LABEL DIRECTIONS Roundup Ultra®/Roundup® will kill plants tl
export markets and may not be received before the end of 2000 As a result, growers may be
such grain for feeding on farm, use In domestic feed lots or other uses In domestic markets 01
neighboring crops For assistance In locating domestic outlets for corn grain, view the ASTA wel
Discover the Latest Hybrids
of Roundup Ready* Corn
able to select hybrids that have above-average performance.
This is an important part of profitable com production, since,
as these reports demonstrate, there is a wide range in the
performance of com hybrids.
Further, we recommend that you evaluate selected hybrids
on your farm under your growing conditions and practices.
This is the best way to make a final determination of the
proper hybrids for your operation.
Corn Talk, Lancaster Farming, Saturday, January 29, 2000—Page
represent a wide variety of growing, soil, and management
conditions. A two-year summary of results for hybrids tested i
both 1998 and 1999 growing seasons is given in Table 3. The
results for hybrids entered in the silage performance test are
reported in Table 4.
Procedures
This testing program was available to any producer of hybrid
seed corn For the grain tests, hybrids were planted in paired-n
plots equal to 1/500 of an acre. Each row was over-planted (30
kernels per row) and thinned when the corn was 12 to 18 inche
tall. The final population was 26,000 plants per acre Silage pic
were 1/1,000 acre in size, consisting of one row over-planted h
32 kernels and thinned to a final population of 28,000 plants pc
acre. All gram entries were replicated three times in each test
while silage entries were replicated four times. Cooperators am
planting and harvesting dates are shown in Table 5.
For more information, contact your local dealer or
your Monsanto rep, visit www.farmsource.com, or
call 1-800-ROUNDUP.
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