ISSUE #372

372 - Variety Selection Considerations

12-13-1999

372.1Choice of a sugarbeet variety, proper stand establishment and nitrogen fertility management is critical to producing high yields of top quality beets. Every seed company has good varieties available for 2000. Study the coded trial data carefully to select a variety for 2000.

Varieties Approved for Unlimited Sale to Shareholders for the Year 2000 Sugarbeet Crop

  Beta 2084 * HM Empire * Maribo 9369
  Beta 2276 (Blend) * HM Glacier   Maribo 9581
  Beta 3636   HM Horizon   Seedex Gladiator
  Beta 3712   HM Shasta   Seedex Monarch
  Beta 3843 * HM Supreme   Seedex Thunder
A Beta 6447 (X705)   HM Valley A Seedex SX 0811
A Beta X708 A HM 7063 * Van der Have H66156
  Croplan 101 A Holly HH-112 (HX701) * Van der Have H66168
  Croplan 102 A Holly HH-115 (HX402)   Van der Have H66183
  Crystal 222 ** KW 3580 (Aph)   Van der Have H66240
  Crystal 261   Lion Seeds Apex   Van der Have H66283
* HM Agate A Lion Seeds Topex A Van der Have H66335
  HM Blazer   Maribo 9363 A Van der Have H66337

A - Newly Approved
* - Approved through 2001 if tested in 2000
**  - Last year of approval

to Shareholders for the Year 2000 Sugarbeet Crop

Beta X709 (Blend) Crystal 817 (X817)
Beta X810 HM 1643
Crystal 814 (X814) Holly 98 HX811
Specialty Varieties  
Beta M701 (Aph)  Crystal 956 (Aph)  HM 1646 (Rzm) 
Beta M811 (Aph-Rzm)  Crystal 960 (Aph)  HM 7073 (Aph-Rzm) 
Beta X704 (Aph)  Crystal 999 (Aph)  HM 7083 (Rzm) 
Beta X856 (Aph)  Crystal 9603 (Aph)  HM 7090 (Rzm) 
Beta 4689 (Rhizoc)  Crystal 9720 (Aph)  Seedex 0814 (Aph) 
Beta 4705 (M705)(Rzm)  Crystal 9744 (Aph)  Van der Have H46109 (Aph) 
Beta 6904 (Aph)  KW3580 (Aph)  Van der Have H46140 (Aph) 
Crystal 205 (Aph)  Holly HH-112 (HX701)(Aph)  Van der Have H66240 (Aph) 
Crystal 555 (Aph)  Holly HH98APH03 (Aph)  Van der Have H68108 (Aph) 
Crystal 952 (Aph)  HM Resist (Aph)  Van der Have H68151 (Aph) 
Crystal 953 (Aph-Rzm)  HM RH3 (Rhizoc)   

1. Aph = Aphanomyces 2. Rhizoc = Rhizoctonia 3. Rzm = Rhizomania

Carefully consider yield, quality, revenue and other factors as you select varieties for 2000. The following example of impact of high sugar varieties on revenue per acre and per ton is taken from actual coded variety trial data. Variety selection impacts shareholder on farm profit as well as American Crystal Sugar Company profitability.

Impact of High Sugar Varieties

 Rec Sug/TRec Sug/A% Sugar
 199819992 Yr199819992 Yr199819992 Yr
Variety A 326.1 321.4 323.8 6956 6534 6745 17.8 17.5 17.6
Variety B 308.5 306.8 307.7 6833 6731 6782 17.0 16.9 17.0
Variety C 307.9 305.1 306.5 7016 6465 6741 17.0 16.8 16.9
 Tons/ARev/T *Rev/A *
 199819992 Yr199819992 Yr199819992 Yr
Variety A 21.3 20.4 20.9 42.69 41.61 42.16 909.35 848.78 881.17
Variety B 22.1 22.1 22.1 38.63 38.23 38.44 853.65 844.97 849.57
Variety C 22.7 21.3 22.0 38.49 37.84 38.16 873.68 806.02 839.63

 * Revenue calculated on 1994-1998 average payment to ACSC shareholders

  • Two-year recoverable sugar/acre means for Varieties A, B, and C are nearly identical.
  • Variety A is approximately one ton/acre lower than Varieties B and C.
  • Two-year mean for Variety A is $3.86/ton higher than the mean of Varieties B and C.
  • Two-year mean for Variety A is $36.57/acre higher than the mean of Varieties B and C.
  • Lower hauling costs for growers .

Other important considerations as you order seed for the 2000 crop include:

  • Seed spacing required to achieve high plant populations
  • Type of seed coating desired
  • Need for Aphanomyces tolerant varieties
  • Need for Tachigaren seed treatment
  • Cercospora rating

When does a field warrant the use of Aphanomyces tolerant varieties and Tachigaren?

  • If Aphanomyces has caused replanting in the past
  • If Aphanomyces has caused field destruction in the past
  • If Aphanomyces has reduced stands below recommended levels
  • Where the defoliator has kicked numerous beets with Aphanomyces tap root tip rot out of the row

Yield and quality of some Aphanomyces tolerant varieties is now nearly as good as the best non-tolerant varietiesImpact of Variety Approval System - 1997-1999 Data

 Rec Sug/TonRec Sug/ARev/TonRev/ARoot YieldSugar ContentCercospora
of 29 Varieties Approved Prior to 1999 Data 314.6 6512 $41.24 $849.93 20.78 17.23 4.93
of 31 Varieties Approved after 1999 Data (7 varieties removed and 9 new varieties added) 316.5 6573 $41.69 $862.03 20.85 17.31 4.95
Difference +1.9 +61 +$0.45 +$12.10 +.07 +.08 -.02

The first year impacts of changes in the variety approval system appear to be positive. The mean value of all varieties shows an increase in yield, quality and revenue. A very slight decline in resistance to Cercospora occurred. Your seed committee will closely monitor future impact of the variety approval system and make changes as necessary to improve shareholder profitability.