Search results
Results from the WOW.Com Content Network
The Watkins Landrace Wheat Collection is a unique resource due to the historical nature of being collected in the 1930’s before widespread globalisation of trade, and before intensive selective breeding in wheat to develop high-yielding elite varieties, which resulted in a significant loss of genetic diversity, including resilience traits. [5]
A friend of his sent him seed from Glasgow in 1842. It is a good yielding wheat, high in quality; an excellent milling wheat. It was grown in Canada from 1860 to 1900, and was the industry standard. Ladoga, 1888. A variety originally from Russia. Early maturing, and the parent of Preston and Stanley. Hard Red Calcutta, 1890. A variety from ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more
Triticum compactum or club wheat is a species of wheat adapted to low-humidity growing conditions. T. compactum is similar enough to common wheat (T. aestivum) that it is often considered a subspecies, T. aestivum compactum. It can be distinguished by its more compact ear due to shorter rachis segments, giving it its common name.
Ears of compact wheat. Modern wheat varieties have been selected for short stems, the result of RHt dwarfing genes [14] that reduce the plant's sensitivity to gibberellic acid, a plant hormone that lengthens cells. RHt genes were introduced to modern wheat varieties in the 1960s by Norman Borlaug from Norin 10 cultivars of wheat grown in Japan ...
The fungal ancestors of stem rust have infected grasses for millions of years and wheat crops for as long as they have been grown. [7] According to Jim Peterson, professor of wheat breeding and genetics at Oregon State University, "Stem rust destroyed more than 20% of U.S. wheat crops several times between 1917 and 1935, and losses reached 9% twice in the 1950s," with the last U.S. outbreak in ...
By 1920, Marquis wheat accounted for 90 percent of the hard red spring wheat planted on the Canadian prairies. The introduction of Marquis resulted in wheat production in Saskatchewan doubling between 1906 and 1920. Marquis was eventually replaced by rust-resistant varieties like Thatcher, Apex, and Renown. [4]
As of 2013, 34 field trials of GM wheat have taken place in Europe and 419 have taken place in the US. [10] Modifications tested include those to create resistance to herbicides, create resistance to insects [11] [12] [13] and to fungal pathogens (especially fusarium) and viruses, [14] [15] tolerance to drought and resistance to salinity [16] and heat, [17] increased [18] [19] and decreased ...