Canola Seeding Rate and Cultivar Hybrid Influence on Spring Canola Performance in North Dakota Bryan Hanson – NDSU Langdon Research Extension Center Eric Eriksmoen – NDSU Minot North Central Research Extension Center
2014 ND Canola Acres by County Langdon Research Extension Center
Minot North Central Research Extension Center
O-9,999
10,000-29,999
30,000-59,999
60,000+
200,000+
Objective: • Evaluate the effects of seeding rates on yield and agronomic traits of a RR and LL canola hybrid.
Methods – Langdon REC • Best Management practices for canola • Planting Date – May 24-2013, May 21-2014 • Conventional Tillage • Row Spacing 7-6 inch rows
• RCBD with split plot arrangement, 4 replications • Main plot – Hybrids • HyClass 955 Roundup Ready • InVigor L130 Liberty Link
• Subplot – Seeding Rates • 3, 6, 9, 12, 15 pure live seed/ft2
Methods – Minot NCREC • Best Management practices for canola • Planting Date – May 21- HyClass 955, June 11-InVigor L130 • No-Till • Row Spacing 6-7.5 inch rows
• 2 separate trials, RCBD - 4 replications • Seeding rate • 3, 6, 9, 12, 15 pure live seed/ft2 • Hybrid • HyClass 955 Roundup Ready • Invigor L130 Liberty Link
Seeding Rates - pls/ft2 vs lbs/a Seeding Rate Seeds/ft2
2013-L130 108K Seeds/lb
2014-L130 89K Seeds/lb
2013-955 114K Seeds/lb
2014-955 107K Seeds/lb
3
1.2
1.5
1.2
1.3
6
2.4
3.0
2.3
2.5
9
3.5
4.5
3.5
3.8
12
4.7
6.0
4.7
5.0
15
5.9
7.5
5.8
6.3
2014 LREC variety trial seed sizes ranged from 63K to 126K seeds/lb Seed Cost: 10.72/lb including seed treatment.
3
6
9
HyClass 955 Seeding rates @ 2 leaf
12
15
6
3
9
HyClass 955 Seeding Rates @ 5-6 leaves
12
15
6
3
9
HyClass 955 Seeding rates @ full flower
12
15
Seeding rate effect on canola agronomic traits averaged over hybrids, Langdon 2013-2014. Seeding Rate Seeds/ft2
Emergence Stand Plts/ft2
1st Flower Days after planting
Days to Mature
Cover %
Plant Height inches
3
2.6
43.6
91.6
29
49
6
5.7
42.1
90.3
62
48
9
8.7
41.6
89.9
78
47
12
12.0
42.0
89.6
83
46
15
14.6
41.1
89.5
88
46
LSD 10%
0.9
0.4
0.6
3.6
1.1
Seeding rate effect on canola oil averaged over hybrids, Langdon 2013-2014. 48.0
F value P≤0.05 NS Oil %
47.5 47.0 46.5 46.0
45.5 45.0
Seeding Rate pls/ft2
3
6
9
12
15
Seeding rate effect on canola yield averaged over hybrids – Langdon 2013-2014. 4000 3900
3898d
LSD 10%
3812cd
3800
3689bc
Yield lbs/a
3700
3543b
3600 3500
3334a
3400 3300 3200 3100 3000
Seeding Rate pls/ft2
3
6
9
12
15
Seeding Rate effect on canola net return (after seed cost) averaged over hybrids, Langdon 2013-2014. Seed Price 10.72/lb 620
Market Price 0.17₵/lb
608
F value P≤0.05 NS (0.21)
Net Return $/a
600
575
586
579
580 560
553
540 520 500
Seeding Rate pls/ft2
3
6
9
12
15
Seeding rate effect on canola emergence stand and oil percent, Minot 2014. Seeding Rate Seeds/ft2
RR-May 21 Emergence Stand Plts/ft2
LL-June11 Emergence Stand Plts/ft2
Oil RR-May 21 %
Oil LL-June 11 %
3
2.3
2.7
45.1
44.3
6
3.7
4.3
45.2
45.1
9
4.6
5.1
42.8
44.7
12
5.9
7.2
44.7
44.6
15
8.8
9.2
43.4
43.1
LSD 10%
10
17
1.0
1.0
Seeding rate effect on canola yield and net return, Minot 2014. Seeding Rate Seeds/ft2
RR-May 21 Yield lbs/a
LL-June 11 Yield lbs/a
RR-May 21 Net Return $/a
LL-June 11 Net Return $/a
3
2511
999
414
154
6
2438
1046
388
146
9
2550
1202
393
156
12
2397
1768
354
236
15
2410
1919
343
246
LSD 10%
NS
125
28
246
Summary • Agronomic trait differences were small with no practical importance to producers • Seeding rates between 9 and 12 pls/ft2 should result in optimum yields and net return/a. If seedbed conditions were less than ideal resulting in an emergence percent of 60, plant stands between 5-7 plants/ft2 would still be acceptable. Seeding rates could be reduced in ideal seedbed conditions.