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K-State Agronomy eUpdates

Department of Agronomy

Kansas State University

1712 Claflin Rd.

2004 Throckmorton PSC

Manhatan, KS 66506

785-532-6101

agronomy@ksu.edu

Extension Agronomy

Canola yields in Kansas in 2018


Canola yields at K-State Research and Extension trial sites and producer fields were lower than recent years. Similar to the state’s wheat crop, canola was affected by challenging weather conditions. Limited soil moisture, cold winter temperatures, a cool start to spring, and a warmer-than-normal May contributed to reduced biomass, shorter flowering and grain filling periods, and lower yield potential. Despite these challenges, yields tended to be somewhat better than expected.

Yields were the lowest where plant stands were thinned by cold temperatures in late December 2017 and early January 2018. Yields were the highest where plant stands remained relatively intact. This was particularly true near Manhattan. Variety trials were planted in mid-September after a three-quarters inch rain, allowing the plants to achieve adequate fall growth going into the winter months. Even though temperatures dropped below 0 degrees F six times, with a minimum low temperature of -8 degrees F, winter survival still averaged near 90%.

Trial sites for the canola breeding program were harvested at Colby, Garden City, Manhattan, and Norwich. Cultivar averages were in the upper 30s near Manhattan and upper 20s/low 30s near Norwich. The Colby and Garden City trial sites was negatively affected by hail (results are pending). Trial sites near Hutchinson and Kiowa were lost to poor establishment. Trial sites near Belleville and Troy were lost to poor establishment and eventually winterkill because the plants were too small for overwintering.

One positive outcome to the challenging year is that 2018 was a good year for rating winter survival. Winterkill does not occur every year in canola so in colder years it is important to see differences in survivability.  We continue to add to our knowledge base about how particular cultivars handle the cold. This information provides us with a means for making better variety recommendations and advancements.

The 2018 National Winter Canola Variety Trial (NWCVT) entries are provided in Table 1. Yields for Manhattan and Norwich are summarized for the open-pollinated (OP) and hybrid entries in Figures 1 and 2, respectively.
 

Table 1. Entries for the 2018 National Winter Canola Variety Trial

Name

Source

Type

Trait

KS4670

Kansas State University

OP

 

KSR4723

Kansas State University

OP

Roundup Ready

KSR4724S

Kansas State University

OP

Roundup Ready/SURT

Surefire

KSU / Spectrum Crop Development

OP

SURT

Riley

Kansas State University

OP

 

Sumner

Kansas State University

OP

SURT

Wichita

Kansas State University

OP

 

Torrington

Ohlde Seed Farms

OP

 

QUARTZ

KWS-MOMONT / Photosyntech

OP

 

HIDYLLE

KWS-MOMONT

H

 

HARMOUR

KWS-MOMONT

H

 

MH 15HIB001

KWS-MOMONT

H

Clearfield

MH 15HIB002

KWS-MOMONT

H

Clearfield

MH 15AY085

KWS-MOMONT

H

 

MH 15HT229

KWS-MOMONT

H

 

Edimax CL

Rubisco Seeds

H

Clearfield

Inspiration

Rubisco Seeds

H

 

Mercedes

Rubisco Seeds

H

 

Popular

Rubisco Seeds

H

 

Atora

DL Seeds

H

 

Event

DL Seeds

H

 

Phoenix CL

DL Seeds

H

Clearfield

Plurax CL

DL Seeds

H

Clearfield

Temptation

DL Seeds

H

 

HyCLASS115W

CROPLAN by WinField

OP

Roundup Ready/SURT

HyCLASS225W

CROPLAN by WinField

OP

Roundup Ready/SURT

CP320W

CROPLAN by WinField

OP

Roundup Ready

Star 915W

Star Specialty Seeds

OP

Roundup Ready/SURT

Star 930W

Star Specialty Seeds

OP

Roundup Ready

DKW44-10

Monsanto / DEKALB

OP

Roundup Ready

DKW45-25

Monsanto / DEKALB

OP

Roundup Ready/SURT

DKW46-15

Monsanto / DEKALB

OP

Roundup Ready/SURT

DK Imiron CL

Monsanto / DEKALB

H

Semi-dwarf, Clearfield

DK Imistar CL

Monsanto / DEKALB

H

Semi-dwarf, Clearfield

DK Sensei

Monsanto / DEKALB

H

Semi-dwarf

DK Severnyi

Monsanto / DEKALB

H

Semi-dwarf

OP=open pollinated; H=hybrid

SURT: sulfonylurea herbicide carryover tolerant

 

At Manhattan, Surefire was the highest yielding OP at 46.4 bu/acre. Surefire is a new variety release from K-State in 2017 that has been licensed to Spectrum Crop Development. The next highest yielding variety was DKW44-10 at 46.2 bu/acre. Rounding out the top 5 included K-State experimental varieties KS4675 (46.0 bu/acre) and KS4670 (42.2 bu/acre), and Star 930W (39.9 bu/acre). Star 930W is a K-State-released variety (KSR07363) that was recently licensed to Star Specialty Seeds.

At Norwich, the highest yielding OP was Wichita at 34.2 bu/acre. Rounding out the top 5 included Riley (33.7 bu/acre), Surefire (32.8 bu/acre), CP320W (32.6 bu/acre), and KS4670 at 32.3 bu/acre. CP320W is a 2017 K-State-released variety that was licensed to CROPLAN by WinField.

Harmour, a conventional hybrid from KWS-MOMONT was the highest yielding hybrid at 46.1 bu/acre in Manhattan. DK Imiron CL (46.0 bu/acre), DK Imistar CL (45.8 bu/acre), Event (45.0 bu/acre), and Plurax CL (43.8 bu/acre) rounded out the top 5. In Norwich, Plurax CL was the top yielding hybrid at 38.0 bu/acre followed by Event (38.0 bu/acre), DK Severnyi (37.9 bu/acre), Popular (37.0 bu/acre), and Mercedes (36.4 bu/acre).


Figure 1. Yield results for the Manhattan and Norwich OP NWCVT in 2018.



Figure 2. Yield results for the Manhattan and Norwich Hybrid NWCVT in 2018.

 

Careful variety selection is very important for successful winter canola production. Watch future Agronomy eUpdates for additional trial site results and suggestions to help with variety selection.

 

 

Mike Stamm, Canola Breeder
mjstamm@ksu.edu