Information
about oil content
When
growing high oil corn using the TopCross® system the seed planted
will be a blend of female grain parent and male pollinator. The pollen
from the male pollinator carries the high oil trait.
Thus,
it is important for maximum oil content that cross-pollination does
not occur by pollen from regular hybrids.
Oil
content is not a single figure and varies depending on the TC Blend®
seed lines and with growing conditions. This is true for regular corn
as well as for high oil corn. The typical mean values used are around
3.8% for regular corn and 7.5% for high oil corn. This high oil value
may vary from 6.5% to 8.5% oil.
For
any particular TC Blend® seed, the seed company should be able to
indicate the average expectations for oil content. Since, the high
oil trait is valuable then the content is measured for purposes of
determining the extra value. By using this information, over time,
it will be possible to compare individual farm results with expectations.
It will also be possible to compare the results from individual seed
companies, and for particular practices.
The
values for oil are often on a dry weight basis (dry wt basis is used
throughout this web site). However, grain oil content may be measured
at moisture contents other than zero. The conversion for some other
levels is given in the table:
| Moisture
content, % ==> |
| Dry (zero) |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
| 4.0 |
3.48 |
3.44 |
3.40 |
3.36 |
3.32 |
3.28 |
3.24 |
3.20 |
| 4.5 |
3.92 |
3.87 |
3.83 |
3.78 |
3.74 |
3.69 |
3.65 |
3.60 |
| 5.0 |
4.35 |
4.30 |
4.25 |
4.20 |
4.15 |
4.10 |
4.05 |
4.00 |
| 5.5 |
4.79 |
4.73 |
4.68 |
4.62 |
4.57 |
4.51 |
4.46 |
4.40 |
| |
|
|
|
|
|
|
|
|
| 6.0 |
5.22 |
5.16 |
5.10 |
5.04 |
4.98 |
4.92 |
4.86 |
4.80 |
| 6.1 |
5.31 |
5.25 |
5.19 |
5.12 |
5.06 |
5.00 |
4.94 |
4.88 |
| 6.2 |
5.39 |
5.33 |
5.27 |
5.21 |
5.15 |
5.08 |
5.02 |
4.96 |
| 6.3 |
5.48 |
5.42 |
5.36 |
5.29 |
5.23 |
5.17 |
5.10 |
5.04 |
| 6.4 |
5.57 |
5.50 |
5.44 |
5.38 |
5.31 |
5.25 |
5.18 |
5.12 |
| 6.5 |
5.66 |
5.59 |
5.53 |
5.46 |
5.40 |
5.33 |
5.27 |
5.20 |
| 6.6 |
5.74 |
5.68 |
5.61 |
5.54 |
5.48 |
5.41 |
5.35 |
5.28 |
| 6.7 |
5.83 |
5.76 |
5.70 |
5.63 |
5.56 |
5.49 |
5.43 |
5.36 |
| 6.8 |
5.92 |
5.85 |
5.78 |
5.71 |
5.64 |
5.58 |
5.51 |
5.44 |
| 6.9 |
6.00 |
5.93 |
5.87 |
5.80 |
5.73 |
5.66 |
5.59 |
5.52 |
| 7.0 |
6.09 |
6.02 |
5.95 |
5.88 |
5.81 |
5.74 |
5.67 |
5.60 |
| 7.1 |
6.18 |
6.11 |
6.04 |
5.96 |
5.89 |
5.82 |
5.75 |
5.68 |
| 7.2 |
6.26 |
6.19 |
6.12 |
6.05 |
5.98 |
5.90 |
5.83 |
5.76 |
| 7.3 |
6.35 |
6.28 |
6.21 |
6.13 |
6.06 |
5.99 |
5.91 |
5.84 |
| 7.4 |
6.44 |
6.36 |
6.29 |
6.22 |
6.14 |
6.07 |
5.99 |
5.92 |
| 7.5 |
6.53 |
6.45 |
6.38 |
6.30 |
6.23 |
6.15 |
6.08 |
6.00 |
| 7.6 |
6.61 |
6.54 |
6.46 |
6.38 |
6.31 |
6.23 |
6.16 |
6.08 |
| 7.7 |
6.70 |
6.62 |
6.55 |
6.47 |
6.39 |
6.31 |
6.24 |
6.16 |
| 7.8 |
6.79 |
6.71 |
6.63 |
6.55 |
6.47 |
6.40 |
6.32 |
6.24 |
| 7.9 |
6.87 |
6.79 |
6.72 |
6.64 |
6.56 |
6.48 |
6.40 |
6.32 |
| 8.0 |
6.96 |
6.88 |
6.80 |
6.72 |
6.64 |
6.56 |
6.48 |
6.40 |
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