Pre-harvest Losses Canola

Presenter: Lorne Grieger P. Eng.

Dec. 11th, 2019

MB Straight cut canola project pre-harvest losses

2016

2017

Sask Straight-cut canola 3-year development

project starting in 2014

Comparison between shatter resistant and typical

hybrid canola varieties pre-harvest losses

(environmental)

This project was funded by the Canada and

Manitoba governments through Growing

Forward 2, a federal-provincial-territorial

initiative.

• Collector trays consisted of an aluminum tray fitted with dual screen inserts

• Coarse for rodent protection

• Fine to suspend seed and prevent moisture saturation

Objective to understand the effect of

pre-harvest aids on:

o Harvest Losses

o Overall Combine Performance

o Yield and Seed Characteristics

o Economic Gain(Compared with no harvest aids and swathing )

• Location: East Selkirk area

• Bayer Invigor® L140P (shatter-tolerant

variety) seeded

• Shatter loss collection pans

were placed at time of

swathing (Aug 22, 2016) to

determine losses different

from swathing.

• Reglone trials were harvested

earlier than other treatments -

shatter loss pans emptied

Sep.3 (12 days), 2016 and

placed back in remaining

standing crop

• Collected loss pans at time of

harvest

Treatment Threshing

Losses

(bu/ac)

Environmental

Losses

(g)

Number of Shatter

Loss Samples

Reglone 1.9 - 3

Heat & Glyphosate 2.8 0.16 4

Naturally Ripened 1.5 0.33 5, 1 outlier

Swathing 1.1 - -

Post-harvest

Reglone-

0.05 4

Collected at Harvest Time Sep. 3, 2016

Sample ID Pods Seeds Seed weight (g) Loss (bu/ac)

Reglone B #1 2 2 -

Reglone B #17 6 13 -

Reglone C #15 0 7 -

Loss (bu/ac)

Sample ID Pods Seeds Seed weight (g) Loss (bu/ac)

Reglone, South, C1 3 0.02 0.02

Reglone, South, B 10 0.03 0.03

Reglone, North, B1 1 0.00 0.00

Reglone, South, B1 31 0.14 0.13

Sample ID Pods Seeds

Seed Weight

(g) Loss (bu/ac)

Heat C (South) - 0.23 0.21

Heat A (South) 4 0.03 0.03

Heat B1 (South) 68 0.22 0.20

Heat B2 (South) 43 0.14 0.13

• Shatter loss samples collected Sept 14th 2016

Sample ID Pods Seeds Seed wt (g)

Loss

(bu/ac)

NR, B1 (South) 0 0.14 0.13

NR, B2 (South) 2 0.01 0.01

NR #1 (South) 0.73 0.67

NR, B1 (North) 2.06outlier

NR, C2 (South) 0.42 0.38

• Shatter loss samples collected Sept 14th 2016

• Trials took place near

Selkirk MB

• 12 standing loss

samples collected

• One from each repeat

area A, B or C for of

each of the 4 straight

cut treatments

(Glyphosate, Reglone,

Heat & Glyphosate,

and Naturally ripened)

• Canola variety Bayer

L233P seeded

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

0

5

10

15

20

25

Win

d S

peed (

km

/h)

°C, m

m

Precipitation (mm) Average Temperature (oC) Max Wind Speed (km/h)

Sprayed Reglone Harvested Reglone Swathing

Sprayed H & G Harvested H & G Harvested swaths

Sprayed Glyphosate Harvested Glyphosate

Harvested NR

The number of seeds were counted for all the standing

loss samples

Largest sample was 36 seeds = .07g or ~.002g/seed

Intermediate sample 17 seeds also ~.002g/seed

Standing losses were from lower weight seeds

These seeds averaged ~70% of the average seed

weight from third party 1000 count seed weight

analyses of 28 samples collected from the combine

(ranged from 2.8-3.1g/1000 seeds)

Trial # Seeds

Treatment

Average #

of Seeds

Glyphosate A 3

5.3Glyphosate B 0

Glyphosate C 13

Reglone A 17*

24.0Reglone B 36*

Reglone C 19

Heat & Glyphosate A 2

11.3Heat & Glyphosate B 26

Heat & Glyphosate C 6

Naturally Ripened A 12

12.3Naturally Ripened B 15

Naturally Ripened C 10

Average 13.25

*Weight taken

Trial

Treatment

Average # of

Seeds

Calculated

Environmental

Loss

(bu/ac) *

Glyphosate 5.3 0.02

Reglone 24.0 0.07

Heat & Glyphosate 11.3 0.03

Naturally Ripened 12.3 0.04

Average 13.25 0.04

*Based on 3g/1000 seed weight typical from combine seed samples

Three year Research Trial

2014, 2015, 2016

Canola Varieties

InVigor L130 – “Standard” Hybrid

InVigor L140P – Shatter Resistant Variety

Also DeKalb 74-44 BL/75-65 RR in 2015, 2016

Full-scale machinery

NH CR 9080 and CR9.90 Combine

35ft Varifeed, 35 ft. Rigid, 36 ft. Draper, and BPU

2014 25-29 May 92 27-Aug 92 24-26 Sep 121

2015 25-May 99 25-Sep 123 21-Oct 150

2016 6-Jun 116 30-Sep 116 27 Oct, 4,5 Nov 143, 151

2014 22-May 107 6-Sep 107 9-11 Oct 141

2015 15-May 103 26-Aug 103 29-Sep 137

2016 17-May 106 30-Aug 105 29 Sep-Oct 1 136

2015 27-May - 3-Sep 99 22-Sep 118

2016 20-21 May - 28-Aug 100 14-15 Sep 117

27-Aug

1-SepSwift Current

Indian Head

Humboldt

30-Sep

6-Sep

26-Aug

31-Aug

N/A

YearLocation Seeding HarvestTray Placement

Environment Loss Swathing

Site Variety Header

Environmental

loss

(bu/ac)

Swift

Current

typical

draper 0.1

rigid 0.1

extended knife 0.1

swath 0.1

shatter

resistant

draper 0.2

rigid 0.2

extended knife 0.2

swath 0.2

Indian

Head

typical

draper 3.5

rigid 3.9

extended knife 3.4

swath 0.1

shatter

resistant

draper 0.9

rigid 0.3

extended knife 0.5

swath 0.1

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

Typical Shatter Resistant Overall

He

ade

r Lo

ss (

bu

/ac)

Canola Variety

Draper Header with Rotary Divider

Rigid Header with Vertical Knife Divider

Extended Knife with Vertical Knife Divider

Extended Knife with Fixed Divider

Header Loss

Negligible pre-harvest losses with pod shatter

reduction varieties used in 2016 (L140P) & 2017

(L233P) trials in MB

Higher environmental and header losses with

hybrid variety (L130P) in SK trial

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THANKYOU

Contact information

Lorne Grieger, P.Eng.Project Manager, Ag R&D

Email: lgrieger@pami.caOffice: 204-239-5445 ext. 229Cell: 204-856-3752