North Dakota State University * Dickinson Research Extension Center
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Table 1. Plant stand, seedling vigor, days to heading, canopy cover, height, grain yield and quality of thirteen oat cultivars during 2003 in a certified organic field near Richardton, ND.

Plant Stand

Seedling Vigor1 Day to Plant height Grain
Variety

22-May

28-May 22-May 28-May heading Plant
Canopy2		 22-May 26-Jun 29-Jul Yield Test weight Kernels
-------no/ft2 -------- - d - -- % -- ----------inches---------- -bu/acre- -lb/bu- -kernels/lb-
AC Assiniboia

28

24 7.1 8.0 65 24 4 17 29 61.7 37.1 13,507
Buff

33

30 7.4 7.9 59 25 4 19 28 49.6 45.8 16,867
Ebeltoft

32

31 7.5 8.0 64 26 4 18 27 69.8 38.8 14,296
HiFi

28

27 7.3 7.9 63 30 4 18 32 67.3 39.0 16,354
Hytest

31

30 8.0 8.3 60 30 4 20 35 54.7 41.5 13,047
Hytest (organic)3

31

28 7.8 8.3 59 30 4 20 34 53.0 41.4 14,000
Leonard

37

31 7.4 8.0 63 23 4 18 28 63.9 38.1 15,375
Morton

34

29 7.5 8.0 62 29 4 19 31 56.4 39.0 14,364
Otana

34

31 7.4 8.0 64 26 4 18 33 53.0 39.9 16,634
Otana (organic)3

29

27 6.8 8.0 61 30 4 20 33 56.4 39.8 16,103
Richard

31

29 7.9 8.0 61 24 4 19 31 60.0 38.4 14,567
Sesqui

30

30 7.3 8.0 61 28 4 19 29 61.4 38.8 16,506
Triple Crown

30

25 7.3 8.0 67 28 4 17 31 53.6 35.1 14,221
Wabasha

32

31 7.1 8.1 60 26 4 19 29 56.9 38.6 15,656
Youngs

33

31 7.1 8.0 63 29 4 18 32 58.3 37.3 13,735
Mean

32

29 7.4 8.0 62 27 4 19 31 58.4 39.2 15,015
CV %

6.2

11.7 4.3 1.9 1.1 17.1 7.9 8.2 5.2 8.3 1.9 7.8
LSD

3

NS 0.5 0.2 1 NS NS NS 2 6.9 1.1 1676
1 1=good vigor; 9=poor vigor
2 Plant canopy is percentage ground cover.
3(organic) = an organic seed lot; the remaining variety treatments were established using a seed lot produced under conventional management.

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Email: drec@ndsuext.nodak.edu