W. Albus, L. Besemann and H. Eslinger
Onions
grow well in
Soil: |
Embden loam; pH=6.6; 2.7% organic
matter; soil-P, soil-K and soil-S were very high. |
Previous crops: |
2005 - cabbage; 2004 – field corn; 2003
- onion. |
Seedbed preparation: |
Fall disk. Multiweed (field cultivate) twice; once on
April 12 to incorporate fertilizer and once on April 17 to smooth seed bed. |
Planting: |
Direct seeded onions (220,000
seeds/acre) on April 17 with a Monosem precision planter. Planted onions with 2 lines per row, 2.5
inches between lines, with the rows on 16-inch centers. |
Plots: |
Plots were 3 ft (two rows) wide by 17 ft
long. The study had 4 reps. |
Fertilizer: |
On April 10, broadcast 20 lbs N/acre, 45
lbs P2O5/acre, 51 lbs K2O/acre and
13 lbs S/acre as 21-0-0-24, 11-52-0 and 0-0-60 and applied 50 lbs N/acre
as 28‑0-0 on April 12.
Stream-bar 30 lbs N/acre as 28-0-0 on June 7, June 21 and July 11. |
Irrigation: |
Overhead sprinkler irrigation as needed. |
|
Weeds were controlled with: Dacthal (10
lbs/acre on April 25), Fusilade plus |
Harvest: |
Onions were pulled on September 7 and
were allowed to field dry until September 11 when they were bagged and moved
to a shed. Onions were graded
September 18 to September 26. |
Sedona had the highest total yield, highest
marketable yield, highest yield in three to four inch onions and had the best
overall score. Pinnacle was the highest
yielding
variety in onions greater than four inches. The variety 7200 was not harvested because of an inadequate stand.
Go to top of
onion performance trial
Table 20. Early
stand, maturity, and quality of onions in the Oakes Irrigation Research Site
2006 onion performance trial. |
|||||||||||||
|
Seed |
Early |
Days to |
Single |
|
Overall |
Brix |
||||||
Hybrid |
source1 |
stand |
half-down2 |
Centers |
Uniformity |
score |
score3 |
||||||
|
|
1000s plt/acre |
|
% |
1 to 5 |
1 to 10 |
|
||||||
|
|
|
|
|
|
|
|
||||||
7200 |
NU |
21.6 |
|
|
|
|
|
||||||
7404 |
NU |
63.9 |
111 |
93 |
3.3 |
6.8 |
10.9 |
||||||
7405 |
NU |
64.1 |
118 |
85 |
3.5 |
7.3 |
11.4 |
||||||
Calibra |
BE |
55.3 |
115 |
0 |
3.5 |
7.0 |
10.8 |
||||||
Caveat
(EX8117) |
SM |
67.1 |
119 |
30 |
3.6 |
7.4 |
11.5 |
||||||
Citation
(EX70004) |
SM |
77.1 |
113 |
40 |
3.1 |
7.0 |
11.1 |
||||||
Cowboy |
BE |
81.6 |
112 |
25 |
3.0 |
6.8 |
10.3 |
||||||
Crockett |
BE |
84.3 |
132 |
35 |
3.8 |
8.0 |
10.8 |
||||||
|
SM |
50.6 |
122 |
20 |
3.5 |
7.2 |
11.9 |
||||||
Infinity |
NU |
97.0 |
120 |
60 |
3.9 |
8.4 |
11.4 |
||||||
Montero |
NU |
79.6 |
124 |
85 |
3.4 |
7.1 |
9.9 |
||||||
Nebula |
NU |
89.5 |
118 |
65 |
3.5 |
7.8 |
11.2 |
||||||
NIZ-3748 |
VL |
76.9 |
112 |
15 |
3.3 |
6.5 |
10.5 |
||||||
Pinnacle |
SM |
65.8 |
113 |
15 |
3.5 |
7.9 |
10.6 |
||||||
Red
Bull |
BE |
69.0 |
126 |
20 |
3.2 |
6.7 |
11.4 |
||||||
Redline |
BE |
75.6 |
111 |
13 |
3.5 |
6.7 |
10.1 |
||||||
Safrane |
BE |
87.3 |
118 |
15 |
3.6 |
7.9 |
10.8 |
||||||
Sedona |
BE |
79.4 |
124 |
80 |
4.1 |
8.6 |
11.5 |
||||||
T-817 |
AT |
73.0 |
113 |
80 |
3.5 |
6.5 |
11.0 |
||||||
Talon |
BE |
93.7 |
116 |
27 |
3.7 |
7.9 |
11.0 |
||||||
Teton |
SM |
74.7 |
117 |
40 |
3.3 |
7.0 |
11.0 |
||||||
Tioga |
SM |
68.7 |
123 |
33 |
3.4 |
7.0 |
9.3 |
||||||
XP
7001 |
SM |
78.0 |
117 |
30 |
3.3 |
7.0 |
12.4 |
||||||
|
|
|
|
|
|
|
|
||||||
LSD
(0.05) |
|
24.6 |
6 |
24 |
0.5 |
1.0 |
1.3 |
||||||
C.V.
(%) |
|
23.9 |
3 |
42 |
9.2 |
9.9 |
8.6 |
||||||
1See Appendix A for a list of
seed sources.
2Days from planting to when half the onion tops had
fallen over. This is an indication of
maturity.
3Brix score measures soluble solids and usually relates
to sweetness – higher equals sweeter.
Go to top of
onion performance trial
|
Seed |
Onion yield
(by bulb size) |
Total |
|||||||
Hybrid |
Source1 |
>4" |
3.5-4" |
3-3.5" |
2.25-3" |
<2.25" |
Total |
Doubles |
Culls |
bulbs |
|
|
---------------------------------------------------------------------
cwt/acre -------------------------------------------------- |
1000s/A |
|||||||
|
|
|
|
|
|
|
|
|
|
|
7404 |
NU |
40 |
265 |
189 |
57 |
3 |
553 |
0 |
57 |
95 |
7405 |
NU |
27 |
98 |
200 |
98 |
6 |
429 |
0 |
32 |
84 |
Calibra |
BE |
51 |
235 |
151 |
42 |
3 |
480 |
20 |
70 |
82 |
Caveat
(EX8117) |
SM |
51 |
224 |
131 |
72 |
3 |
480 |
0 |
35 |
80 |
Citation
(EX70004) |
SM |
19 |
145 |
171 |
102 |
7 |
444 |
0 |
86 |
98 |
Cowboy |
BE |
19 |
80 |
125 |
119 |
17 |
360 |
6 |
47 |
94 |
Crockett |
BE |
27 |
193 |
251 |
93 |
4 |
568 |
0 |
30 |
101 |
|
SM |
34 |
114 |
137 |
58 |
3 |
346 |
0 |
42 |
66 |
Infinity |
NU |
24 |
216 |
258 |
101 |
8 |
607 |
3 |
21 |
111 |
Montero |
NU |
98 |
227 |
131 |
47 |
3 |
505 |
0 |
106 |
89 |
Nebula |
NU |
10 |
144 |
239 |
113 |
7 |
512 |
0 |
32 |
105 |
NIZ-3748 |
VL |
0 |
34 |
199 |
171 |
10 |
414 |
0 |
8 |
101 |
Pinnacle |
SM |
115 |
210 |
129 |
56 |
6 |
517 |
0 |
31 |
84 |
Red
Bull |
BE |
36 |
154 |
191 |
85 |
5 |
470 |
4 |
19 |
85 |
Redline |
BE |
13 |
87 |
203 |
115 |
9 |
426 |
6 |
39 |
101 |
Safrane |
BE |
31 |
176 |
256 |
90 |
5 |
558 |
11 |
31 |
101 |
Sedona |
BE |
114 |
305 |
176 |
37 |
3 |
635 |
12 |
35 |
92 |
T-817 |
AT |
0 |
61 |
185 |
186 |
13 |
445 |
0 |
18 |
110 |
Talon |
BE |
32 |
196 |
236 |
115 |
12 |
591 |
2 |
14 |
111 |
Teton |
SM |
66 |
192 |
118 |
90 |
9 |
475 |
3 |
59 |
90 |
Tioga |
SM |
45 |
183 |
128 |
69 |
1 |
426 |
1 |
60 |
79 |
XP
7001 |
SM |
2 |
30 |
151 |
189 |
16 |
387 |
0 |
12 |
98 |
|
|
|
|
|
|
|
|
|
|
|
LSD
(0.05) |
|
51 |
92 |
94 |
61 |
10 |
165 |
8 |
33 |
31 |
C.V.
(%) |
|
93 |
40 |
37 |
45 |
97 |
24 |
184 |
58 |
24 |
1See Appendix A for a list of
seed sources.
Go to top of
onion performance trial
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