Green Options

Dr. Norman Borlaug passed away this weekend at 95.  He left behind an amazing legacy of contribution to humanity.  It is likely that he saved more human lives than any other person in history.  He did it by developing far more productive wheat than had ever been grown.  His “short stature” wheat had shorter, thicker stems so that it could hold bigger heads of grain that would otherwise “lodge” (collapse over on to the ground where it can’t be harvested).  It was also resistant to the devastating wheat disease called “Stem Rust.”  This wheat ended up feeding millions of people around the world, particularly in Pakistan and India in the 1960s.  Borlaug’s breakthrough was a key part of the “Green Revolution” and it did much to address the hunger and poverty issues of the time.  For this, and his life-time of additional work Bourlag recieved the Nobel Peace Prize, the Presidential Medal of Freedom and the Congressional Gold Metal .  Only Martin Luther King, Elie Wiesel, Nelson Mandela and Mother Teresa have received all of these commendations.  He was also awarded the National Medal of Science and a host of other awards from around the world.  There is an excellent article about the life and career of this remarkable man in the Des Moines Register.

The chart above shows the historical average yields for wheat and corn in the US.  Note that until the 1930s the relative yields of the crops were similar and were not changing.  After that time yields of both crops began to rise steadily, but corn yields have grown at a much faster pace.  What explains this difference?

There are several interacting factors behind this, and they work together to create the “orphan” status of wheat as a crop.  Corn is a hybrid crop which enhances its yield and the ease of increasing its yield through breeding.  Wheat is harder to hybridize so it isn’t practical except for extremely high yielding wheat areas like Northern Europe.  Instead, US wheat is largely a “saved seed crop” meaning that the grower can simply save back some of the grain and replant it rather than needing to buy new hybrid seed each year.  That system is workable, particularly if the grower periodically buys some “certified seed” to have a purer stand and to take advantage of breeding improvements.  The down-side of a “saved seed crop” is that there is not a very big private seed industry to invest in the crop.  Most of the breeding is done by University and USDA breeder supported by tax dollars and there is a small private industry as well.  As I said in the previous post, these breeders have done a remarkable job with the resources they have, but in an increasingly ag-unaware society, that support is never generous.

As China marches forward with aggressive infrastructure construction plans, years of panda conservation face major setbacks.

Despite the panda’s status as China’s signature animal, China’s desire for economic development may spell doom for this shy and gentle creature.

The panda’s already fractured habitat is being split up into even smaller pockets by construction of highways at nature reserves. According to People’s Daily Online, WWF China has reported several panda populations have already been forced into habitats just 1 kilometer wide.

Pandas limited to fragmented home ranges are unable to breed with other populations, severely impacting opportunities for genetic diversity within the species - and leading to extinction in the wild.

Austrian scientists are putting the ‘fun’ in ‘fungus’ by forcing organisms which are usually asexual to have sex instead.

The hope is that the fungus would then be easier to breed, which would allow researchers to create organisms that are more efficient at degrading cellulose for the purpose of making biofuel.

Bilbies were nearing extinction when conservationists enrolled four of the little marsupials in breeding program in 2005. Luckily, the program has worked, with the population exploding to 42 bilbies.

Two men, Peter McRae and Frank Manthey, are largely responsible for saving the species. Nicknamed the Bilby Brothers, they pushed to have the four little marsupials placed in an enclosure in Currawinya National Park. It was nothing but an experiment.

According to research based upon sea ice models from the IPCC report, Antarctica’s iconic Emperor Penguins could face extinction by the end of the century due to habitat loss.

By comparing observations spanning 43 years of population dynamics against models which project the declining levels of Antarctic sea ice, the study predicts that the giant penguins will be too slow to adapt to changes wrought by global warming.

The startling prediction is being called a conservative estimate by researchers, who claim that the data has as much as a four-in-five chance of being accurate. This number is particularly high because individual Emperor Penguins are long-lived and, as a result, biologically slow learners. Thus, they are unlikely to shift their breeding patterns fast enough to match the rapidly changing climate.