|
|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
 |
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Three New HRS Varieties to be Released by WestBred LLC for 2007 By Greg Fox, WestBred LLC wheat breeder gfox@westbred.com WestBred’s established hard red spring wheat varieties, Granite and Trooper, had a very good year in 2006, as did many other varieties. Trooper, in particular, produced some very high yields in commercial fields along the northern tier of Minnesota and North Dakota. Seed production fields of three new WestBred varieties, Rush, Chamberlin and Samson, also looked very good in 2006. Rush, WestBred LLC’s newest general release, is an improved early and more scab resistant version of the variety Granite. Like Granite, Rush has excellent standability and consistently produces very high protein and high test weight grain. Also like Granite, Rush is a low tillering variety that requires 1.2 x seeding rate (x being your standard seeding rate) to achieve high yield. And finally, like Granite, Rush should be treated with fungicide at both the 5 leaf stage and heading for best results. However, unlike Granite, Rush is very early to head, 5-7 days earlier than Granite; with a rapid seed fill and dry down profile. For most producers, Rush will be the first wheat they harvest, not the last (like Granite). Rush has a much superior reaction to Fusarium Head Blight than Granite with resistance to leaf rust, stem rust and foliar disease similar to Granite. Rush potentially has a better reaction to bacterial blight than Granite because it does not remain in the erect water catching rosette stage for a prolonged period of time. Rush has a better falling number profile than Granite, an average of 30 points higher. This still leaves Rush on the lower end of falling number rankings, so timely harvest should be planned for Rush, just like Granite. Rush is marketed by all WestBred LLC Associates. In South Dakota, an earlier/shorter sister line of Rush, named Chamberlin, has been released which is designed to beat the S.D. heat. This variety is marketed exclusively by Warrington Seed of Bristol, S.D. Another new release, Samson, an improved version of Express, will be available in 2007. Express, a high yield semi-dwarf, had an excellent year in 2006 largely because of very low disease pressure. But Express still has an unacceptable VS (very susceptible) scab reaction. Samson has the same standability as Express with much improved foliar disease resistance and better regional yield potential. Samson has an improved scab reaction but, at best, is a susceptible vs. very susceptible for Express. Thus, Samson will require full and timely management with respect to scab. Samson is marketed by Ross Seed/Triangle Ag to customers committed to the required management practices. Bigg Red, the ‘unmatched scab fighter’ (with a leaf rust problem) – after a great year in scabby 2005, showed great yield punch in a non-scab year 2006. Note the performance of Bigg Red in NDSU trials conducted by the Carrington and Langdon AES (traditional scab areas). Bigg Red is marketed by Unity Seed/Bigg Dogg Agg. Table 1. Comparison of Rush and Granite at 45 environments from 2004 to 2006 in
Table 2. Comparison of Chamberlin and Granite at 17 environments from 2005 to 2006
Table 3. Comparison of Samson and Express at 16 environments from 2004 to 2006 in ND, MN and SD. Heading Height VSK* Falling Protein Test Weight Yield Variety Days after 6/1 Inches % Numbers % Lb/Bu bu/A Samson 23.5 27.6 9.7 464.0 14.3 59.6 65.0 Express 23.7 26.3 12.5 485.0 14.6 58.4 59.1 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||