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2015 WSU Mt. Vernon NWREC Wheat Variety Testing Results

Volume 5 Issue 2

2015 WSU-Mount Vernon Hard Spring Wheat Trial

* 70 lb/ac seeding rate

  • All values within the 10% LSD range of the highest are shown in bold.
  • The Hard Spring Wheat Nursery was seeded on 08 April 2015.
  • Seed was placed at 100#/ac seeding rate with a double disc drill set on 6-inch spacing.
  • 72.0 lbs N, 10.6 P , 24.0 K, and 15.0 S were applied post-emergence based on soil tests. 07 June, additional 30 lbs/a N applied to hard wheats.
  • Maestro 2EC and Harmony Extra SG were applied at labeled rates for weed control. No fungicides were
  • Glee-G2 is Glee with 2 oz/100 lbs seed of Gaucho┬«insecticide seed treatment targeting wireworms. Glee is the standard seed treatment rate (0.75oz./100lbs. seed) and Glee-0W has no insecticide seed treatment.
  • Harvest was on 11 August 2015; average yield was 56.0 bu/a, 26.0 bu/a less than last year.
  • Test Weight averaged 61.1 lbs/bu, much greater than last year’s 52.2 lbs/bu.
  • Grain protein averaged 11.5 %, less than last year’s 13.5% protein value.
  • HRS= hard red spring; HWS=hard white spring; HRF= hard red facultative; HRSI = hard red spring Clearfield
  • Heading date is when 50 % of the heads are 50 % emerged.

Discussion

This nursery experienced excess heat during tillering, causing most varieties to produce only one to three tillers, greatly reducing grain yield.

For additional information contact Steve Lyon (slyon@wsu.edu).

For additional variety testing results visit: The Bread Lab: Western Washington Variety Trials

The information in this document is provided for educational purposes only. References to commercial products or trade names do not imply an endorsement by Washington State University.

2015 WSU-Mount Vernon Hard Winter Wheat Trial

* 70 lb/ac seeding rate, all others 100 lbs/ac

Mount Vernon Hard Winter Wheat

  1. The nursery was planted on October 9, 2014 with a double disc drill on 6-inch spacing. No fertilizer was applied in the fall. 1.5 lbs/ac of diuron herbicide was applied pre-emergence.
  2. March 17, April 2 and April 30, 2015 applications of NPKS were applied totaling 140 lbs N/acre. Maestro 2EC and Harmony Extra SG were applied at labeled rates for weed control. No fungicides were applied. The nursery was harvested on July 23.
  3. Harvest was on July 21 and yields ranged from 16.2 to 120.7 bushels/acre, test weights 47.8 to 58.2 lbs/bu and protein 10.3 to 15.3 %. Values within the 10% LSD range of the largest are shown in bold.
  4. Barley Yellow Dwarf Virus (BYDV): a visual rating was assigned based on a 0-9 scale where 0 = no symptoms; 1 = trace amounts of yellowing at leaf tips, vigorous plant apperance; 5 = more extensive yellowing, some dwarfing, moderate plant vigor; 9 = marked dwarfing, complete yellowing, some sterility.
  5. Heading date is when 50 % of the heads are 50 % emerged.
  6. Stripe rust rating: R = resistant; MR = moderately resistant; MS =moderately susceptible; S = susceptible.

Discussion

The severe infestation of Barley Yellow Dwarf Virus (BYDV) contributed to a yield reduction of 52% from the previous year. The yield of the varieties tend to follow the severity of the visual rating, giving a good indication of the genetic resistance or tolerance of that variety to the BYDV. Aphids are the vector that carry the virus to the plant and best management practices recommend reducing the aphid population by delaying planting, using an insecticidal seed treatment or spraying the plants with an insecticide.

For additional information contact Steve Lyon (slyon@wsu.edu).

For additional variety testing results visit: The Bread Lab: Western Washington Variety Trials

The information in this document is provided for educational purposes only. References to commercial products or trade names do not imply an endorsement by Washington State University.

2015 WSU-Mount Vernon Soft White Spring Wheat Trial

* 70 lb/ac seeding rate

  • All values within the 10% LSD range of the largest are shown in bold.
  • The Hard Spring Wheat Nursery was seeded on 08 April 2015.
  • Seed was placed at 100#/ac seeding rate (unless otherwise noted) with a double disc drill set on 6-inch spacing .
  • 72.0 lbs/a N, 10.6 P , 24.0 K, and 15.0 S were applied post-emergence based on soil tests. 07 June an additional 30 lbs/a N was applied to the hard wheats.
  • No fungicides were applied for stripe rust control or insecticides for cereal leaf beetle control.
  • Glee-G2 is Glee with 2 oz/100 lbs seed of Gaucho┬«insecticide seed treatment targeting wireworms. Glee is the standard seed treatment rate (0.75oz./100lbs. seed) and Glee-0W has no insecticide seed treatment.
  • Harvest was on 11 August 2015; average yield was 56.0 bu/a, 26.0 bu/a less than last year.
  • Test Weight averaged 61.1 lbs/bu, much greater than last year’s 52.2 lbs/bu.
  • Grain protein averaged 11.5 %, less than last year’s 13.5% protein value.
  • HRS= hard red spring; HWS=hard white spring; HRF= hard red facultative; HRSI = hard red spring Clearfield
  • Heading date is when 50 % of the heads are 50 % emerged.

Discussion

This nursery experienced excessive heat during tillering causing most varieties to produce only one to three tillers, greatly reducing grain yield.

For additional information contact Steve Lyon (slyon@wsu.edu).

For additional variety testing results visit: The Bread Lab: Western Washington Variety Trials

The information in this document is provided for educational purposes only. References to commercial products or trade names do not imply an endorsement by Washington State University.

2015 WSU-Mount Vernon Soft Winter Wheat Trial

  1. Planted at a seeding rate of 100 lbs/ac on October 9, 2014 with a double disc drill on 6-inch row spacing. No fertilizer was applied in the fall. 1.5 lbs/ac of diuron herbicide were applied pre-emergence.
  2. On March 17 and April 2, 2015 a split application of NPKS was applied totaling 110 lbs N/acre. Maestro 2EC and Harmony Extra SG were applied at labeled rates for weed control. No fungicides were applied. The nursery was harvested on July 23.
  3. Harvest was on July 21 and yields ranged from 22.9 to 106.6 bushels/acre, test weights 42.4 to 60.4 lbs/bu and protein 4.4 to 11.6 %. Values within the 10% LSD range of the largest are shown in bold.
  4. Barley Yellow Dwarf Virus (BYDV): a visual rating was assigned based on a 0-9 scale where 0 = no symptoms; 1 = trace amounts of yellowing at leaf tips, vigorous plant apperance; 5 = more extensive yellowing, some dwarfing, moderate plant vigor; 9 = marked dwarfing, complete yellowing, some sterility.
  5. Heading date is when 50 % of the heads are 50 % emerged.
  6. Stripe rust rating: R = resistant; MR = moderately resistant; MS =moderately susceptible; S = susceptible.
  7. 7. WC = Winter Club; SWW = Soft White Winter; SWWI = Soft White Winter, Clearfield

Discussion

The severe infestation of Barley Yellow Dwarf Virus (BYDV) contributed to a yield reduction of 58% from the previous year. The yield of the varieties tend to follow the severity of the visual rating, giving a good indication of the genetic resistance or tolerance of that variety to the BYDV. Aphids are the vector that carry the virus to the plant and best management practices recommend reducing the aphid population by delaying planting, using an insecticidal seed treatment or spraying the plants with an insecticide.

For additional information contact Steve Lyon (slyon@wsu.edu).

For additional variety testing results visit: The Bread Lab: Western Washington Variety Trials

The information in this document is provided for educational purposes only. References to commercial products or trade names do not imply an endorsement by Washington State University.