For fancy varieties, look for pictures in books or on the internet.
Public health experts in the United States said that the French outbreak, in which about 16 people fell ill, may have helped investigators in the German episode to focus on the three varieties of sprouts, looking for common threads.
It is inserting new genes into a variety of plants, looking for one that will, when exposed to high temperature and alkalinity, produce an enzyme that partly digests the cellulose to liberate the sugars, so they can be converted into alcohol or other useful chemicals.
Because the dispensaries are looking for varieties of flavors and effects, there's a market for growers to experiment.
"They are looking for varieties that have a long shelf life, that have certain skin characteristics, are reliable, and give good yields" Potatoes are classified into two main groups.
To that end, scientists are breeding corals in special facilities that simulate different growing conditions, looking for varieties that are tolerant to higher temperatures, ultraviolet light (a problem since we created a hole in the ozone layer), and acidity, for example.
In addition to the familiar purple-tinged variety, look for small, thoroughly white turnips with thin skins, red-skinned turnips reminiscent of radishes, and yellow turnips that are golden through and through.
If you are buying a purple, green or orange variety, look for browning on the leaves and base of the curd.
Anne-Marie Owens and Raymond Blanc's kitchen garden secrets Choosing a variety: Look out for nurseries' specialist vegetable days around the country – they often provide tastings of different varieties.
"We were looking for variety".
We're looking for variety, so get creative!
