SUGAR BEET VARIETY TESTING RESULTS, 1995

Charles E. Stanger and Joey Ishida

Malheur Experiment Station

Oregon State University

Ontario, Oregon, 1995

Purpose

Commercial varieties and experimental lines of sugar beets were evaluated to identify lines with high sugar yields and root quality. A joint seed advisory committee evaluates the accumulated performance data for the varieties, and restricts growers in Idaho and Malheur County of Oregon to planting only those varieties ranking above minimum industry requirements.

Procedures

Nineteen commercial and 43 semi-commercial varieties of sugar beets were evaluated in a trial conducted by Oregon State University at the Malheur Experiment Station. Seed for evaluation was received from American Crystal, Betaseed, Hilleshog Mono-Hy Inc., Holly, Seedex, and Spreckels beet seed companies. The sugar beets were planted in Owyhee silt loam soil where winter wheat was grown the previous year. Soil pH was 7.3 at the site on the Experiment Station. The soil organic matter was 1.2 percent. The field was plowed in the fall of 1994. One hundred lb/ac of phosphate and 60 lb/ac of N were applied as a broadcast treatment before plowing. An additional 150 lb/ac of nitrogen was added by sidedressing ammonium sulfate after thinning. Two lb ai/ac of Nortron was broadcast for weed control and incorporated using a spike-tooth bed harrow before planting.

The commercial and semi-commercial varieties were planted in separate trials. Each entry was replicated eight times using a randomized complete block experimental design. Each plot was four rows wide and 23 feet long with 3-foot alleys separating plots. Approximately 12 viable seeds per foot of row were planted in each plot row. The seed was planted on April 10 and 11 with a cone-seeder mounted on a John Deere model 71 flexi-planter equipped with disc openers. After planting, the sugar beets were corrugated and furrow-irrigated to furnish moisture for uniform seed germination and seedling emergence.

The sugar beets were hand-thinned during the first week of May. Spacing between plants was approximately 7 inches. In mid-July, and again on August 10, 80 lb/ac powdered sulfur was spread by aerial application and by hand over the foliage to protect the sugar beet leaves from powdery mildew infection.

The sugar beets were harvested during the third week of October. The foliage was removed by a flail beater and the crowns clipped with rotating scalping knives. The roots from the two center rows of each four-row plot were dug with a single-row wheel-type lifter harvester, and all roots in each 23 feet of row were weighed to calculate root yields. A sample of eight beets was taken from each of the harvested rows and analyzed for percent sucrose, pulp nitrate nitrogen, and conductivity. The percent extraction was calculated using a formula which required percent sucrose and conductivity readings as factors.

Results

Variety performance has been grouped by seed company (Table 1 and 2). Each variety was ranked (designing order) within each company's variety by yield of recoverable sugar per acre. The data was analyzed statistically for LSD value at the 5 percent level of significance, and coefficient of variation for each variable is reported.

Yields of recoverable sugar from commercial varieties ranged from a high of 14,300 pounds of sugar/ac to a low of 11,250 pounds of sugar/ac, with a variety mean of 12,550 pounds of sugar/ac.

Yield of recoverable sugar from semi- commercial lines ranged from 14,270 pounds of sugar/ac to a low of 11,120 pounds of sugar/ac, with an entry mean of 12,560 pounds of sugar/ac.

Table 1. Root yields, sugar yields and root quality data from sugar beet lines entered as commercial varieties at the Malheur Experiment Station, Oregon State University, Ontario, Oregon 1995.

Entry Sugar beet yield and quality  
Company Variety Root 

yield

Sugar 

content

Gross

sugar

Conduct-

ivity

Root-

NO3-N

Extraction Estimated

recoverable sugar

    tons/ac % lbs/ac mmho ppm % lb/ac lb/ton
American Crystal ACH 203 44.9 2 17.12 15370 .802 207 84.32 12960 288.8
  ACH 211 42.7 0 17.56 14990 .751 169 85.09 12750 298.9
  ACH 203 Goucho 43.87 17.22 15110 .820 187 84.11 12710 289.7
  ACH 322 40.29 17.82 14360 .766 170 84.94 12200 302.8
Betaseed Beta 8422  43.81 17.47 15300 .842 188 83.86 12830 293. 0
  Beta 8422 Goucho  44.37 17.35 15390 .887 219 83.23 12810 288.8
  Beta 8450  42.7 0 17.34 14810 .797 218 84.44 12500 292.8
  Beta 8545 43.19 16.48 14220 .891 173 83.01 11810 273.7
  Beta 4689 4689 38.3 0 17.3 0 13260 .759 156 84.93 11260 293.8
Hilleshog Mono-Hy Canyon 49.07 17.25 16920 .790 197 84.51 14300 291.6
  WS 62 46.9 0 16.9 0 15850 .769 162 84.72 13430 286.5
  WS 88 47.28 16.88 15950 .827 200 83.95 13390 283.4
  WS 91 45.48 17.16 15610 .785 200 84.56 13200 290.2
  HM 9155 44.06 17.31 15250 .808 190 84.29 12850 291.8
  WS PM9 44.8 0 16.82 15060 .743 159 85.05 12810 286.1
  HM R2 R2PM9 42.32 16.45 13930 .852 187 83.52 11640 274.9
  WS 21 39.67 16.92 13420 .835 208 83.85 11250 283.7
Holly HH 67 42.2 0 16.77 14150

1415014150

.815 205 84.09 11900 282.1
Seedex  Monohikari 39.6 0 17.41 13810 .635 165 86.57 11950 301.4
LSD (0.05)   1.6 0 0.42 586  .047 49 0.67 512 8.6
CV (%)   3.8 0 2.4 0 3.9 5.9 26.4 0.8 4.1 3. 0 
Mean   43.4 0 17.13 14880 .798 188 84.37 12550 289.2
Entry Sugar beet yield and quality    
Company Variety Root 

yield

Sugar 

content

Gross

sugar

Conduct-

ivity

Root-

NO3-N

Extraction Estimated

recoverable sugar

    tons/ac % lbs/ac mmho ppm % lb/ac lb/ton
American Crystal ACH 203 44.31 17.14 15350 .776 170 84.68 12860 290.3
  ACH 212 42.69 17.21 14860 .763 175 84.85 12470 292.1
  9450217 37.69 17.27 13160 .721 135 85.43 11120 295.1
Betaseed 2BG6303  48.02 17.16 16660 .820 189 84.09 13860 288.6
  3BG6110 46.84 17.16 16250 .829 190 83.98 13500 288.2
  3BG6111 47.15 16.85 16060 .866 210 83.42 13250 281. 0
  4CG6486 46.84 16.58 15710 .873 184 83.27 12940 276.2
  2BG6282 47.83 16.26 15730 .931 220 82.43 12820 268.1
  Beta 4006 42.88 17.03 14760 .637 141 86.47 12620 294.4
  2BG6314 43.25 17.29 15110 .806 239 84.31 12600 291.5
  Beta 8450 43.25 16.89 14780 .814 227 84.12 12290 284.3
  3BG6350 44.18 16.6 0 14830 .853 191 83.55 12260 277.5
  3BG6348 44.61 16.21 14620 .924 212 82.51 11930 267.5
  Beta 4581 43.25 16.29 14250 .885 263 83.05 11700 270.6
Hilleshog HM- 2919 48.76 17.19 16940 .739 189 85.17 14270 292.8
  HM-2925 47.83 17.43 16860 .718 152 85.5 0 14260 298.1
  HM-2922 45.67 17.7 0 16350 .639 123 86.57 13990 306.4
  HM-2923 46.04 17.56 16340 .669 142 86.16 13920 302.6
  HM-2921  47.15 17.25 16440 .708 136 85.59 13910 295.3
  HM -2924 47.34 17.3 0 16560 .757 151 84.95 13910 294. 0
  WS-91 46.9 0 17.05 16170 .746 182 85.04 13610 290. 0
  HM-2916 46.59 17.14 16150 .774 184 84.7 13530 290.3
  HM-2975 46.78 16.52 15620 .747 189 84.94 13120 280.5
  WS-PM9 45.6 0 16.61 15320 .754 176 84.86 12860 281.9
  HM-2971 45.42 16.7 0 15330 .797 203 84.32 12790 281.6
  HM-2972 44.43 16.45 14780 .842 205 83.66 12230 275.3
  HM-2974 41.95 16.9 0 14340 .761 196 84.83 12030 286.7
  HM-55 42.94 16.54 14360 .823 174 83.93 11920 277.6
  HM-2920 41.83 16.7 0 14130 .869 197 83.36 11650 278.4
Holly HH101R 46.47 15.86 14910 .901 203 82.74 12200 262.6
  Rival 43.13 16.64 14500 .782 201 84.49 12120 281.1
  HH97R 44.18 16.18 14450 .880 220 83.1 0 11880 268.9
  Rhizosen 43.62 16.15 14240 .788 243 84.3 0 11870 272.3
  Rhizoguard 43.62 16.05 14160 .849 184 83.48  11690 268. 0
  93HX18 42.26 16.3 0 13930 .767  206 84.6 0 11650 275.9
  95HX22 40.47 16.81 13750 .787 209 84.46 11490 283.9
Seedex SX1506 44.49 17.03 15320 .801 186 84.33 12780 287.2
  SX1507 43.5 0 16.39 14420 .846 160 83.6 0 11920 274.1
  SX1505 41.33 17.03 14230 .814 208 84.15 11840 286.6
  SX1508 43.32 16.25 14230 .891 225 82.96 11680 269.6
Spreckels SS 92338 44. 00 16.2 0 14420 .883 218 83.06 11840 269.2
  SS 93424 43.63 15.86 13990 .936 206 82.27 11380 261. 0
  SS 781R 43.25 15.92 13920 .927 218 82.41 11340 262.5
LSD (0.05)   1.5 0 0.29 525 .051 35 0.69 459 6.3
CV (%)   3.4 0 1.78 3.5 6.3 18.5 0.83 3.7 2.2
Mean   44.5 0 16.74 15080 .807 192 84.18 12560 281.9