Encyclopedia > Plant breeding

  Article Content

Crop breeding

Redirected from Plant breeding

Crop performance is primarily determined by two factors:
  • genetic characteristics of the variety
  • environment in which the variety is grown.

Crop improvement occurs when a plant breeder alter the genetic composition of a variety to enhance or decrease expression of important crop characteristics. Improvement can rely on classical recombination breeding techniques, or molecular techniques for specific goals.

The targeted improvements are usually in relation to the output potential of the grain (i.e., high and stable yield) or to minimize yield losses or reduce production costs (due to disease, lodging…). In grain production, such as wheat, other characteristics, such as milling quality and bread making quality (protein content, protein quality and alpha-amylase[?] activity) are also considered. Other improvements are related to the growing awareness and concern about food safety among consumers, composition and contamination of crop products. Examples of such a concern are the ones related to fungal diseases : fungal pathogens, such as Fusarium spp.[?] attack wheat and cause the disease known as Fusarium head blight[?] or Fusarium ear blight. These pathogens have both the capacity to cause significant grain yield losses but can also produce highly-dangerous mycotoxins[?] in grains. Some projects are focussed on the breeding of new wheat varieties that are genetically resistant to these pathogens.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
1904

... Reinhard Heydrich, Nazi official March 20 - B. F. Skinner, behavioral psychologist (+ 1990) March 23 - Joan Crawford, actress March 26 - Joseph Campbell, author and ...

 
 
 
This page was created in 71.5 ms