Downy brome (Bromus tectorum. L.), a serious grass weed in eastern Oregon can be partially controlled in wheat by metribuzin [4-amino-6-tertbutyl- 3-(methylthio)-as triazin -5(4H)-one]. However, cultivars of many crops Lave been reported to differ in their level of tolerance to metribuzin. This lack of tolerance has led to the investigation...
Volunteer winter wheat (Triticum aestivum 'Daws')
severely suppressed growth of fall-planted alfalfa
(Medicago sativa (L.) 'Vernal') seedlings. Wheat
competition began soon after alfalfa emerged and continued
until the first forage harvest the following May. Alfalfa
yield at the first cutting was reduced by 1% for each day
volunteer wheat was...
The methane monooxygenase (MMO) enzyme, used by methylotrophs
to oxidize methane, has been shown to possess quite broad substrate
specificity, being able to oxidize many organic compounds including
n-alkanes, n-alkenes, ethers, and aromatic, alicyclic, and
heterocyclic compounds. In this research, it was sought to
determine whether a gas-permeable-membrane-supported (GPMS) biofilm...
A gas-permeable-membrane-supported (GPMS) biofilm consisting
of methylotrophic bacteria was effective in degrading chlorinated
methanes, ethanes, and ethenes. The biofilm was developed on a
gas-permeable fabric (Goretex, W.L.Gore & Associates, Elkton,
Maryland) that divided a reactor vessel into a liquid compartment
and a gas compartment. Goretex is a nylon-backed teflon mesh...
Summer brooding often requires some form of air modification in
addition to maximizing ventilation rate to prevent animal heat stress
and possible death due to hyperthermia. A rockbed thermal storage
module was designed and constructed to provide sensibly cooled air
for a broiler space under summer brooding conditions. A mathematical...
The prototypal poxvirus vaccinia is a cytoplasmic-replicating DNA
virus which contains a large genome with the capacity to encode 200
polypeptides. Tight temporal regulation coordinates the expression of
this large number of genes throughout a relatively short replication
cycle. As a first step towards identifying and understanding the
regulatory mechanisms...
Cheddar cheese making from ultrafiltered (UF) concentrated milk
potentially increases yield, saves raw materials, cuts transportation costs,
minimizes waste pollution, and stream-lines production. However, the resulting
UF-cheese has been found to differ from conventionally made cheese (CM-cheese)
in its casein matrix and ripening process.
UF and CM Cheddar cheeses were...