While the refuge strategy lessens the chance for the insect pest to overcome the Bt trait, farmers cannot realize the full production benefit of the Bt crop. The next generation of Bt crops with multiple modes of action for insect control were then developed by stacking several classes of Bt genes.
Posted 03 October 2009 - 0816 AM. This may be a number of small questions on fuels..... If i understand, Naval Ships during the World War II time frame ran Bunker Oil.
1 On most ships the propulsion boilers also provide steam at reduced pressure for hotel services mentioned above. 2  On ships which are not propelled by steam, gas turbine and diesel ships, for example, some type of boiler is still used to provide hotel service steam. Boilers-boilers are used on almost all naval vessels, either to provide steam for propulsion turbines or to provide steam used in hotel services such as space heaters, hot water heaters, sculleries, laundry, etc. 2  There are many different boilers used in the Navy. 3  They can be classified in several ways.