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A heat-loving,
water-thrifty potential feed grain alter- native for the Plains or second-crop
option elsewhere debuted in a few farm fields last summer.
The newcomer is pearl
millet, an ancient tropical cereal grain that University of Nebraska plant
breeders adapted for U.S. agriculture.
Pearl millet is grown
for food in some countries but is a forage crop in America. David Andrews,
an Institute of Agriculture and Natural Resources plant breeder, saw its
potential as a grain crop for the hot, dry, short-seasoned High Plains
where feed grain often is limited and as a fast growing second-crop option
in longer-seasoned areas. Pearl millet is adaptable, needs little water
and keeps growing in heat that shuts down even sorghum. Yet, traditional
pearl millet is tall, weak-stalked and low-yielding by U.S. standards.
NU breeders dwarfed
the plant, which can be planted and harvested with sorghum equipment; strengthened
its stalks to resist lodging, the tendency for stems to fall or break;
bred for early maturity; and improved yields by about 20 percent.
"We increased
yields as we've gone along breeding for earliness, dwarfness and lodging
resistance," Andrews said.
The resulting improved
pearl millet typically yields 50-70 bushels per acre, comparable to early
sorghum, and matures at about the same time. It produces multiple seed
heads on strong stalks that withstand even snowstorms.
Pearl millet won't
replace corn or sorghum but Andrews thinks it would be a good choice for
certain situations. It would be a full-season crop in the hot, dry, short-seasoned
Plains. In eastern Nebraska, it offers a late planting or replanting option
and could follow wheat if harvest is complete by July 2. South and east
of Nebraska, it could be a second crop.
"When it starts
off in hot weather, it can grow like crazy," Andrews said. "That's
important because it means it could be planted after wheat harvest."
Pearl millet's feed
value and performance are similar to corn's for swine and cattle. Commercial
tests show pearl millet outperforms corn or sorghum in poultry diets.
"It's a good
tradeoff in areas where corn is in short supply," he said.
Last summer, about
20 farmers in Nebraska and nine other states planted small plots of NU's
improved pearl millet. Two seed companies produced small amounts of hybrid
seed for sale this year. Seed parents for those hybrids came from NU's
1998 limited release of seven pearl millet parent lines developed through
IANR research.
Andrews expects more
farmers to grow pearl millet this year. Some of last year's growers may
increase their acreage.
Andrews also is working
with Kedar Rai, a visiting scientist from India, on new pearl millet breeding
systems, which are faster, easier and more efficient than earlier methods.
These systems will help NU and Kansas State researchers more rapidly improve
grain pearl millet.
"It's like
a log jam has been broken in pearl millet," Andrews said. "I
think it's going to improve breeding efficiency by about 10 times."
INTSORMIL, a U.S.
Agency for International Development cooperative research project, helped
fund this research.
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Vicki Miller
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