Oakes Irrigation Research
Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2189, FAX: (701)
742-2700, email: rgreenla@ndsuext.nodak.edu
ONION HYBRID PERFORMANCE TRIAL, 2000
Richard Greenland, Leonard Besemann, and Heidi Eslinger
Table 33. Early vigor, maturity, and quality of onions.
Table 34. Yield and total number of onions.
Onions grow well in North Dakota. Growers are producing mostly yellow sweet Spanish onions and some storage onions.
MATERIALS AND METHODS
Soil: | Maddock sandy loam; pH=7.1; 2.5% organic matter; soil-P and soil-K were very high; soil-S was high. |
Previous crops: | 1999 - edibile bean and pumpkin; 1998 - field corn; 1997 - cabbage. |
Seedbed preparation: | Disked on 29 October 1999. Multiweeded (field cultivated) on April 5 and April 17 to incorporate fertilizer and smooth the seedbed. |
Planting: | Direct seeded onions (200,000 seeds/acre) on April 17 with a Stanhay vegetable planter modified to drill a barley cover crop (1 bu/acre, 6-inch rows) between and parallel to the onion rows. Planted onions in paired rows (3 inches apart), with the paired rows on 16-inch centers. Sprayed Fusilade + NIS (12 oz/acre + 1 pt/25 gal on May 18) to kill the barley cover crop. |
Plots: | Plots were 3 ft (two paired rows) wide by 17 ft long. The study had 4 reps. |
Fertilizer: | On April 4, broadcast 18 lbs N/acre and 20 lbs S/acre as 21-0-0-24. Applied 50 lbs N/acre as 28-0-0 on April 17. Sprayed 60 lbs N/acre as 28-0-0 on May 23. Fertigated 35 lbs N/acre as 28-0-0 on June 27 and July 14. |
Irrigation: | Overhead sprinkler irrigation as needed. |
Pest control: | Weeds were controlled with: Prowl (1.5 pt/acre on May 5); Buctril + Goal (1.5 + 0.6 pt/acre on May 31 and June 22); Spot applied Poast + Dash (1.5 + 1 pt/acre on July 25); and hand weeding. We sprayed with Kocide (1.5 lbs/acre on July 20), Manzate (3 lb/acre on July 12 and 2 lb/acre on July 7, July 26, and Aug 2), and Bravo 500 (3 pt/acre on Aug 9 and 2 pt/acre on Aug 26) to control diseases. No insect control needed. |
Harvest: | Pulled onions approximately two weeks after half-down date. Onions were allowed to dry in the field for about two weeks then they were bagged and moved to a shed. The onions were graded Nov. 6 to Nov. 13. |
The hybrids T-439 and SRO 1429 had the highest jumbo and overall yields. Teton and Eagle also had high total and jumbo yields. Uniglobe 108, Millennium, PS 456994, and PSR 604395 had the highest yields of medium bulbs. SRO 1429, Ranchero, Vaquero, 6633, PSR 362593, Torero, Vantage, Teton, Sabroso, and Vision were the most highly single centered. The two white hybrids had an unusually high percentage of rotten onions. The two dehydrating onions had low yields.
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Table 33. Early vigor, maturity, and quality of onions in the Oakes Irrigation Research Site 2000 onion performance trial.
Hybrid | Seed source1 | May 18 stand | May 18 vigor | July 11 vigor | Days to half-down2 | Single centers | Uniformity | Overall score |
------------ 1 to 10 ----------- | % | 1 to 5 | 1 to 10 | |||||
Yellow | ||||||||
6633 | PS4 | 8.0 abc5 | 7.0 b-e | 8.0 b-e | 126 cde | 75 abc | 3.5 b-e | 7.5 a-d |
Brahma | SS4 | 4.3 g | 5.3 i | 7.3 efg | 130 efg | 20 g | 3.1 e-h | 6.8 a-g |
Eagle (T-406) | AT | 7.8 a-d | 6.8 c-f | 8.8 ab | 132 ghi | 65 a-e | 3.8 abc | 7.4 a-e |
Millennium | SS | 7.8 a-d | 6.8 c-f | 8.5 abc | 125 cd | 60 a-f | 3.0 f-i | 7.0 a-g |
PS 456994 | PS | 7.5 b-e | 6.8 c-f | 9.0 a | 117 a | 65 a-e | 3.3 d-g | 6.9 a-g |
PSR 362593 | PS4 | 7.0 c-f | 6.5 d-g | 8.8 ab | 127 def | 75 abc | 3.4 c-f | 7.5 a-d |
PSR 664095 | PS4 | 7.3 b-f | 6.3 e-h | 7.8 c-f | 131 fgh | 35 efg | 3.1 e-h | 6.5 b-g |
PSR 604395 | PS4 | 7.3 b-f | 6.3 e-h | 8.5 abc | 121 abc | 60 a-f | 3.6 a-d | 7.6 abc |
PX 709295 | PS4 | 6.5 ef | 5.3 i | 7.3 efg | 135 hij | 60 a-f | 2.9 ghi | 6.3 c-g |
PX 709995 | PS4 | 6.3 f | 5.5 hi | 6.8 gh | 136 hij | 55 b-f | 3.1 e-h | 6.1 d-g |
Quantum | PS3 | 7.5 b-e | 6.8 c-f | 8.5 abc | 118 ab | 35 efg | 3.0 f-i | 6.0 efg |
Ranchero | SS | 8.0 abc | 7.0 b-e | 7.8 c-f | 132 ghi | 90 a | 3.4 c-f | 6.8 a-g |
Sabroso | SS4 | 7.0 c-f | 6.3 e-h | 8.0 b-e | 136 hij | 70 a-d | 3.3 d-g | 7.3 a-f |
SRO 1429 | SS | 7.5 b-e | 7.3 a-d | 8.0 b-e | 144 k | 90 a | 3.6 a-d | 7.1 a-g |
T-439 | AT | 8.3 ab | 8.0 a | 8.8 ab | 123 bcd | 45 c-g | 3.9 ab | 8.0 a |
Tenshin | SC3 | 7.8 a-d | 7.3 a-d | 8.8 ab | 123 bcd | 55 b-f | 3.3 d-g | 7.4 a-e |
Teton | PS | 8.0 abc | 7.0 b-e | 8.8 ab | 123 bcd | 70 a-d | 4.0 a | 7.9 ab |
Tioga | PS4 | 8.0 abc | 6.8 c-f | 8.3 a-d | 125 cd | 65 a-e | 3.5 b-e | 7.5 a-d |
Torero | SS4 | 8.0 abc | 6.5 d-g | 7.8 c-f | 135 hij | 85 ab | 3.3 d-g | 7.1 a-g |
Torero | SS | 7.8 a-d | 7.5 abc | 7.5 d-g | 136 ij | 65 a-e | 3.5 b-e | 7.4 a-e |
Uniglobe 100 | PS3 | 7.5 b-e | 7.8 ab | 8.5 abc | 122 a-d | 30 fg | 3.3 d-g | 7.1 a-g |
Uniglobe 108 | PS | 8.8 a | 8.0 a | 9.0 a | 119 ab | 50 c-g | 3.5 b-e | 7.3 a-f |
Uniglobe 118 | PS4 | 7.5 b-e | 7.5 abc | 8.8 ab | 125 cd | 60 a-f | 3.5 b-e | 6.9 a-g |
Vantage | PS4 | 8.3 ab | 7.0 b-e | 8.5 abc | 121 abc | 75 abc | 3.6 a-d | 7.8 ab |
Vaquero | SS | 7.3 b-f | 6.8 c-f | 7.3 efg | 137 ij | 85 ab | 3.3 d-g | 6.6 a-g |
Vision | PS4 | 6.5 ef | 5.8 ghi | 7.3 efg | 139 j | 70 a-d | 3.0 f-i | 6.6 a-g |
Winner | SS4 | 6.8 def | 6.3 e-h | 6.0 h | 139 j | 65 a-e | 3.1 e-h | 6.9 a-g |
XPH97H33 | CR | 8.1 abc | 6.9 cde | 7.7 c-g | 137 ij | 40 d-g | 3.2 d-h | 6.6 a-g |
XPH97H36 | CR | 7.5 b-e | 6.5 d-g | 7.0 fg | 135 hij | 30 fg | 3.3 d-g | 6.5 b-g |
Red | ||||||||
Flamenco | SS | 8.0 abc | 7.0 b-e | 8.0 b-e | 127 def | 40 d-g | 2.9 ghi | 5.8 gh |
Mercury | PS | 7.3 b-f | 7.3 a-d | 8.3 a-d | 124 cd | 55 b-f | 3.1 e-h | 5.9 fg |
White | ||||||||
901494 | PS4 | 7.3 b-f | 6.0 f-i | 7.0 fg | 139 jk | 30 fg | 2.8 hi | 3.0 i |
901694 | PS4 | 7.0 c-f | 5.8 ghi | 7.0 fg | 135 hij | 70 a-d | 2.6 i | 4.4 hi |
Dehydrating | ||||||||
Aspen | RR | 8.0 | 7.5 | 9.0 | 116 | 10 | 2.5 | 6.3 |
Star Dust | RR | 6.0 | 6.0 | 8.5 | 125 | 0 | 3.0 | 3.0 |
C. V. (%) | 10 | 8 | 8 | 3 | 37 | 11 | 15 | |
Probability | <.0001 | <.0001 | <.0001 | <.0001 | <.0001 | <.0001 | <.0001 |
1See Appendix A for seed source codes.
2The "days to half-down" was the number of days from planting to when half the onion tops had fallen over. This is an indication of maturity.
3,4This seed was furnished by Norman Haak or Frontier Seed Company, respectively.
5Values in the same column followed by the same letter are not significantly different at the 0.05
level. Dehydrating onions not included in statistics because there were only two plots of each.
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Table 34. Yield and total number of onions in the Oakes Irrigation Research Site 2000 onion hybrid performance trial.
Hybrid | Seed source1 | Onion yield (by bulb size) | Culls | Total bulbs | ||||
> 4 | 3 to 4" | 2¼ to 3" | <2¼" | Total | ||||
-------------------------- cwt/acre ------------------------ | % | 1000s/A | ||||||
Yellow |
||||||||
6633 | PS4 | 0 f2 | 314 e-j | 251 abc | 33 bcd | 690 e-h | 14 a-d | 166 a-d |
Brahma | SS4 | 5 c-f | 193 k-n | 135 i-l | 12 hi | 374 l | 6 a | 79 n |
Eagle (T-406) | AT | 0 f | 463 abc | 196 d-h | 16 f-i | 820 abc | 17 a-e | 161 b-f |
Millennium | SS | 0 f | 121 n | 247 a-d | 49 a | 561 jk | 26 b-e | 152 d-h |
PS 456994 | PS | 0 f | 210 i-n | 276 ab | 37 b | 611 g-j | 16 a-e | 174 ab |
PSR 664095 | PS4 | 0 f | 245 g-m | 178 g-j | 23 c-i | 602 hij | 25 b-e | 147 fgh |
PSR 362593 | PS4 | 6 c-f | 453 a-d | 152 h-l | 14 ghi | 688 e-h | 1 a | 127 jkl |
PSR 604395 | PS4 | 3 ef | 336 d-h | 247 a-d | 34 bc | 671 f-i | 8 a | 163 a-e |
PX 709995 | PS4 | 3 ef | 228 h-n | 113 lm | 24 c-h | 498 k | 26 b-e | 111 m |
PX 709295 | PS4 | 3 ef | 226 h-n | 135 i-l | 19 e-i | 536 jk | 29 de | 126 klm |
Quantum | PS3 | 5 def | 209 j-n | 181 g-j | 33 bcd | 560 jk | 25 b-e | 147 fgh |
Ranchero | SS | 22 b | 393 b-e | 132 j-m | 20 e-i | 794 bcd | 29 e | 162 b-f |
Sabroso | SS4 | 0 f | 296 e-k | 182 f-j | 18 f-i | 566 jk | 11 ab | 127 jkl |
SRO 1429 | SS | 36 a | 544 a | 149 h-l | 14 ghi | 867 ab | 15 a-e | 165 a-e |
T-439 | AT | 16 bcd | 552 a | 232 b-f | 15 ghi | 905 a | 7 a | 179 a |
Tenshin | SC3 | 2 ef | 262 f-l | 207 c-g | 28 b-f | 576 ijk | 13 a-d | 142 g-j |
Teton | PS | 5 c-f | 491 ab | 234 b-e | 22 d-i | 821 abc | 6 a | 162 b-f |
Tioga | PS4 | 3 ef | 362 c-g | 183 e-i | 19 e-i | 687 e-h | 17 a-e | 147 fgh |
Torero | SS | 16 bcd | 393 b-e | 171 g-k | 27 b-f | 749 c-f | 19 a-e | 156 c-g |
Torero | SS4 | 8 c-f | 372 b-f | 206 c-g | 24 c-i | 736 c-f | 18 a-e | 161 b-f |
Uniglobe 100 | PS3 | 0 f | 245 g-m | 239 bcd | 25 b-g | 609 g-j | 15 a-e | 149 e-h |
Uniglobe 108 | PS | 0 f | 286 e-k | 293 a | 19 e-i | 695 e-h | 13 abc | 161 b-f |
Uniglobe 118 | PS4 | 22 b | 390 b-e | 122 klm | 12 i | 773 b-e | 27 cde | 143 ghi |
Vantage | PS4 | 3 ef | 467 abc | 240 bcd | 28 b-f | 799 bcd | 7 a | 169 abc |
Vaquero | SS | 13 b-e | 336 d-h | 137 i-l | 23 c-i | 684 e-h | 25 b-e | 143 ghi |
Vision | PS4 | 9 b-f | 280 e-k | 123 klm | 19 e-i | 538 jk | 21 a-e | 113 lm |
Winner | SS4 | 5 c-f | 295 e-k | 174 g-j | 19 e-i | 604 hij | 17 a-e | 130 ijk |
XPH97H33 | CR | 9 b-f | 345 c-h | 200 c-h | 16 f-i | 712 d-g | 20 a-e | 153 c-h |
XPH97H36 | CR | 16 bcd | 283 e-k | 149 h-l | 24 c-h | 622 g-j | 21 a-e | 144 ghi |
Red | ||||||||
Flamenco | SS | 0 f | 158 lmn | 214 c-g | 30 b-e | 537 jk | 25 b-e | 151 d-h |
Mercury | PS | 18 bc | 327 e-i | 109 lm | 20 e-i | 681 e-h | 27 cde | 138 h-k |
White | ||||||||
901494 | PS4 | 5 c-f | 157 lmn | 83 m | 19 e-i | 545 jk | 54 f | 137 h-k |
901694 | PS4 | 5 c-f | 140 mn | 132 j-m | 16 f-i | 548 jk | 47 f | 151 d-h |
Dehydrating | ||||||||
Aspen | RR | 0 | 0 | 145 | 160 | 389 | 14 | 221 |
Star Dust | RR | 0 | 0 | 44 | 88 | 261 | 44 | 145 |
C. V. (%) | 130 | 27 | 20 | 37 | 10 | 55 | 8 | |
Probability | <.0001 | <.0001 | <.0001 | <.0001 | <.0001 | <.0001 | <.0001 |
1See Appendix A for seed source codes.
2Values in the same column followed by the same letter are not significantly different at the 0.05 level. Dehydrating onions not included in statistics because there were only two plots of each.
3,4This seed was furnished by Norman Haak or Frontier Seed Company, respectively.
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