All experiments are statistically designed so that the "real" yield differences can be separated from yield differences that occur by chance. LSD (Least Significant Difference) values are used for this purpose. When comparing the yield of one variety with the yield of another variety, the yield difference must exceed the LSD value (higher or lower) to be considered a "real" difference. It is advisable to use multi-year averages when choosing a variety or cropping sequence.

Dryland Fallow HRS Wheat Sidney, MT

  Yield TW Protein
Cultivar 1998 3 yr 1998 1998 3 yr
  - bus/a - lb/b -- % --
Scholar 65.0 50.8 60.5 14.9 14.1
Amidon 62.6 50.4 59.2 14.1 13.7
McNeal 65.1 49.7 59.3 13.4 14.2
Lars 70.5 49.6 58.5 13.3 13.9
Hi-Line 64.2 49.2 60.3 14.2 14.5
Lew 64.6 48.7 60.7 14.3 14.0
Keene 61.0 48.6 61.0 14.8 14.1
Grandin 62.8 48.4 59.8 15.0 14.7
Ernest 58.0 47.5 60.0 15.1 14.3
Westbred 926 63.4 47.0 59.8 14.8 14.9
Norlander 61.6 46.8 59.7 14.2 14.5
Sonja 63.3 46.5 60.2 14.5 14.4
Newana 58.6 46.4 58.3 13.6 13.2
Len 60.9 45.3 58.3 14.7 14.5
Kulm 60.2 45.0 61.5 15.7 15.1
Thatcher 53.4 41.7 56.8 14.7 14.1
Fortuna 59.3 44.0 60.5 14.5 14.3
Ivan 71.8 ------ 61.5 13.0 ------
AC Crystal 69.0 ------ 60.3 12.6 ------
Argent 66.8 ------ 59.7 15.9 ------
Verde 66.6 ------ 59.5 14.6 ------
Hagar 65.2 ------ 60.8 13.4 ------
AC Barrie 65.0 ------ 60.0 15.8 ------
Nora 63.2 ------ 59.8 15.2 ------
LSD 5% 6.5 ------ 1.2 0.8 ------
Plant: April 17 Harvest: August 7

Dryland Fallow HRS Wheat Williston, ND

  Yield TW

Protein Height
Cultivar 1998 3 yr 1998 1998 1998
  - bus/a - lb/b -- % -- inches
           
2398* 59.5 45.4 57.9 13.7 30
Penwawa* + 51.4 43.4 54.9 12.6 30
Keene 53.6 42.4 59.2 14.4 36
Verde* 54.9 42.4 56.8 13.3 30
Scholar 52.4 42.0 59.0 14.2 35
Bergen* 55.5 41.7 57.2 13.3 29
Lars* 53.8 41.5 54.6 12.9 26
Russ 54.9 41.3 56.5 14.3 32
AC Cadillac 53.2 41.2 59.2 14.3 39
Gunner 52.0 41.1 59.4 15.2 33
McNeal* 53.5 40.7 56.5 13.5 31
Oxen* 55.4 40.7 55.3 13.3 29
Express* 51.9 40.2 56.0 13.6 28
AC Barrie 49.2 40.2 57.6 15.2 35
HiLine 51.2 40.1 56.0 13.6 30
Forge* 53.3 39.9 58.6 13.1 32
Amidon 48.5 39.8 57.6 13.9 36
2375* 53.0 39.3 57.5 14.0 32
AC Elsa 51.1 39.1 56.7 14.9 35
Newana* 47.3 38.9 55.4 13.2 30
Argent * ^ 48.3 38.4 56.7 14.5 33
Stoa 45.6 38.1 55.9 14.6 35
Nora* 52.3 38.0 56.4 14.4 27
Trenton 48.2 37.8 56.4 15.1 36
AC Domain 46.0 37.7 58.3 15.1 34
Sharp* 47.1 37.7 58.2 13.6 32
CDC Teal 48.4 37.6 57.6 15.0 36
Majestic 47.7 37.4 57.5 15.0 35
Grandin* 46.6 37.4 54.9 14.5 32
Gus* 43.8 37.2 56.2 15.3 31
Butte 86 48.3 37.1 56.2 14.5 32
Hamer* 51.1 36.6 57.6 13.7 30
2371* 47.2 36.5 54.3 14.4 30
Kulm 48.8 36.4 59.9 14.6 33
Len* 45.9 36.0 55.7 14.0 31
Ernest 46.0 35.9 57.5 14.1 35
AC Eatonia 45.8 35.5 59.1 15.1 37
Splendor 47.9 34.7 57.3 14.5 35
BacUp 43.3 29.6 61.2 15.9 33
Glupro 30.2 26.9 54.9 17.4 39
Ingot 55.7 ------ 59.9 13.7 33
Sharpshooter* 50.9 ------ 60.2 13.5 32
AC Vista* ^ 57.7 ------ 55.6 12.5 31
Hager* 53.0 ------ 57.4 13.7 30
HJ 98* 56.2 ------ 56.8 13.0 30
Ivan* 57.6 ------ 58.0 12.5 28
           
LSD 5% 3.7 ------ 1.0 0.5 1
Plant: April 27 Harvest: August 7
* Semi-dwarf + Soft white ^ Hard white
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Last modified: August 04, 2003