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

PEPPER HYBRID PERFORMANCE TRIAL, 2000

Richard Greenland, Leonard Besemann, and Heidi Slinger


Results summary

Table 35. Quantity and yield of peppers

Table 36. Quality of peppers

Table 37. Cumulative yields of marketable peppers

Peppers generally grow surprisingly well in southern North Dakota, although late in the season some hot peppers lose their heat if the weather is too cool. In cool years, yields and quality may be reduced.

MATERIALS AND METHODS

Soil: Maddock sandy loam; pH=7.4; 1.9% organic matter; soil-P, soil-K, and soil-S were very high.
Previous crop: 1999 - cabbage; 1998 - field corn; 1997 - onion.
Seedbed preparation: Disked on 29 October 1999. Multiweeded (field cultivated) once on April 5. Deep tillage on May 23. Multiweeded (field cultivated) twice on June 6 to incorporate herbicide.
Planting: Peppers were seeded in the greenhouse on April 3. Plants were hand transplanted to the field on June 7. Planting pattern was paired rows (12 inches between rows) on 4 ft centers. In-row spacing was 18 inches within a single row, which put a plant every 9 inches for the paired rows. Each plant received 1 pint of fertilizer solution (1 gal 10-34-0 in 100 gal of water) at planting.
Plots: Plots were 17 ft long by 4 ft (one paired row) wide. There were 4 reps.
Fertilizer: On April 4, broadcast 18 lbs N/acre and 20 lbs S/acre as 21-0-0-24. Fertigated 35 lbs N/acre as 28-0-0 on June 27 and on July 14.
Irrigation: Overhead sprinkler irrigation as needed.
Pest control: Weeds were controlled by Treflan (1 pt/acre on June 6), rototilling between rows, and hand weeding as needed throughout the season. No disease or insect control was required.
Harvest: Harvested hot peppers 8 times and sweet peppers 7 times from Aug 2 to Sept 21.

RESULTS

Paladin had the highest yields, biggest fruit, and best quality of the bell peppers. Summer Heat 5000 was the best Jalapeño. ACX 400 did well for a Hungarian Wax type. Yields of peppers, especially hot peppers, were lower this year than most other years.

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Table 35. Quantity and yield of peppers in the Oakes Irrigation Research Site 2000 pepper hybrid performance trial.
Hybrid Seed source1 Number of peppers Pepper yield
fancy #1's #2's total fancy #1's #2's total
----------- 1000s per acre ----------- -----1000s of lbs per acre ------
Sweet peppers
ACX 217 AC 17.1 bc2 27.5 e-i 12.2 ab 62.5 bcd 7.4 bc 9.3 d-g 4.1 a 22.9 bcd
Aladdin X3R PS 9.9 cd 24.5 g-j 7.4 b-e 50.3 ef 4.3 cd 8.2 fgh 2.3 d-g 17.3 g-j
Brigadier NV 11.1 bcd 29.5 c-h 8.2 b-e 55.1 cde 4.9 bcd 9.3 d-g 2.5 c-f 18.6 d-j
Commandant NV 11.5 bcd 35.2 bc 9.1 bcd 66.9 b 5.1 bcd 11.6 a-d 2.7 b-e 22.3 b-f
Crusader(RPP 6110) NV 12.3 bcd 27.5 e-i 7.8 b-e 54.8 c-f 5.2 bcd 8.7 efg 2.1 d-g 18.1 e-j
King Arthur PS 13.9 bcd 34.6 bcd 12.0 abc 64.9 bc 6.1 bcd 11.5 bcd 3.8 abc 22.7 bcd
North Star PS 10.2 bcd 47.9 a 16.5 a 86.2 a 4.2 cd 13.9 a 3.9 ab 24.7 ab
Paladin NV 29.9 a 25.6 g-j 7.2 cde 71.1 b 14.5 a 8.7 efg 2.6 c-f 28.6 a
Summer Sweet 830 AC 9.8 cd 29.0 c-i 5.4 de 47.6 ef 4.0 cd 8.7 e-h 1.3 fg 15.0 j
Summer Sweet 890 AC 12.8 bcd 22.6 ij 6.9 de 47.2 ef 5.2 bcd 7.1 gh 2.1 d-g 15.7 hij
Enterprise AS 12.3 bcd 26.9 f-i 6.6 de 53.2 def 5.3 bcd 8.8 efg 1.9 d-g 18.3 e-j
EX 12283 AS 15.7 bcd 24.2 g-j 9.3 bcd 55.1 cde 7.1 bc 8.0 fgh 2.9 a-d 19.8 c-h
EX 12285 AS 10.1 bcd 30.9 c-g 6.2 de 53.5 def 4.3 cd 10.2 c-f 1.8 d-g 18.0 f-j
EX 2670155 AS 8.2 d 27.9 d-i 5.8 de 46.8 ef 3.2 d 8.4 fgh 1.5 efg 14.4 j
EX 2670169 AS 17.9 b 19.5 j 3.5 e 45.8 ef 8.5 b 6.4 h 1.3 fg 17.7 g-j
Intrepid AS 11.9 bcd 34.0 b-e 9.0 bcd 63.4 bcd 5.3 bcd 11.7 abc 3.0 a-d 22.4 b-e
Lexington AS 9.9 cd 32.8 b-f 5.9 de 55.6 cde 4.4 cd 11.2 bcd 1.8 d-g 19.5 c-i
XP 12262 AS 13.8 bcd 37.8 b 9.6 bcd 67.4 b 6.2 bcd 12.9 ab 2.8 a-e 23.7 bc
XP 12279 AS 11.9 bcd 25.8 g-j 7.5 b-e 50.6 ef 5.5 bcd 8.2 fgh 2.2 d-g 17.7 g-j
XP 12284 AS 8.3 d 23.7 hij 9.1 bcd 47.1 ef 3.8 cd 8.1 fgh 3.0 a-d 16.7 hij
XP 12292 AS 13.5 bcd 32.8 b-f 9.4 bcd 62.3 bcd 5.9 bcd 10.7 b-e 2.7 b-e 21.4 b-g
XP 2670168 AS 13.8 bcd 24.2 g-j 3.7 e 44.2 f 5.8 bcd 7.7 gh 1.2 g 15.4 ij
Hot peppers
ACX 400 AC 151.7 z 66.9 y 30.1 x 263.3 y 15.2 x 5.3 x 2.0 x 23.4 x
Summer Heat 5000 AC 265.0 x 90.6 x 18.6 y 377.1 x 15.0 x 3.3 y 0.5 y 18.9 y
Summer Heat 6000 AC 202.9 y 71.4 y 15.7 y 292.6 y 11.9 y 2.6 z 0.5 y 15.1 y
Probability (sweet peppers) 0.0013 <.0001 0.0006 <.0001 0.0002 <.0001 0.0003 <.0001
Probability (hot peppers) 0.0007 0.03 0.02 0.006 0.05 <.0001 <.0001 0.0005

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. The hot peppers were analyzed separately from the sweet peppers.

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Table 36. Quality of peppers in the Oakes Irrigation Research Site 2000 pepper hybrid performance trial.
Hybrid Seed source1 Fruit shape2 Fruit length Fruit width Outside color3 Fruit size Wall thick-
ness
Uni-
formity
Overall score4
1 to 4 ----- inches ---- 1 to 7 oz/fruit mm 1 to 3 1 to 10
Sweet peppers
ACX 217 AC 1.1 cde5 3.8 b-f 3.4 a-f 6.0 5.9 bc 6.3 d-h 1.6 6.4 cde
Aladdin X3R PS 1.1 b-e 3.9 abc 3.3 c-g 6.0 5.5 cde 6.2 e-h 1.7 6.4 cde
Brigadier NV 1.0 cde 3.7 c-g 3.5 abc 6.0 5.4 c-f 6.6 a-d 1.5 6.3 def
Commandant NV 1.2 bcd 4.0 abc 3.3 d-g 6.1 5.4 c-f 6.3 d-h 1.6 6.3 de
Crusader(RPP 6110) NV 1.0 e 3.5 f-i 3.4 a-f 6.0 5.3 def 6.4 b-f 1.7 6.4 b-e
King Arthur PS 1.0 cde 3.6 d-i 3.4 a-f 6.1 5.6 cde 6.3 d-h 1.7 6.5 a-e
North Star PS 1.1 b-e 3.6 d-i 3.2 gh 6.0 4.6 g 6.4 c-g 1.7 6.2 ef
Paladin NV 1.1 b-e 3.9 abc 3.5 ab 6.0 6.4 a 6.4 b-f 1.8 6.8 ab
Summer Sweet 830 AC 1.0 de 3.8 b-e 3.3 b-g 6.0 5.1 efg 6.0 h 1.6 6.4 b-e
Summer Sweet 890 AC 1.0 e 3.5 f-i 3.4 a-f 6.0 5.4 c-f 6.2 e-h 1.7 6.5 a-e
Enterprise AS 1.1 b-e 3.4 hi 3.4 a-f 5.9 5.5 cde 6.5 b-f 1.6 6.3 de
EX 12283 AS 1.2 bc 4.2 a 3.4 a-f 5.9 5.8 bcd 6.2 fgh 1.7 6.6 a-e
EX 12285 AS 1.4 a 4.0 ab 3.0 h 6.1 5.3 c-f 6.5 b-f 1.7 6.3 de
EX 2670155 AS 1.0 de 3.4 ghi 3.3 b-g 5.9 5.0 fg 6.5 b-f 1.6 6.3 de
EX 2670169 AS 1.2 b-e 3.9 bcd 3.5 a 6.0 6.2 ab 6.6 a-e 1.8 6.8 a
Intrepid AS 1.0 de 3.7 c-g 3.2 fg 6.0 5.7 cd 6.7 abc 1.7 6.6 a-d
Lexington AS 1.0 de 3.3 i 3.3 b-g 6.0 5.7 cd 6.7 ab 1.8 6.6 a-e
XP 12262 AS 1.0 e 3.5 e-i 3.3 c-g 6.0 5.7 cd 6.9 a 1.7 6.8 abc
XP 12279 AS 1.0 e 3.6 e-i 3.5 a-d 6.0 5.6 cde 6.5 a-e 1.8 6.6 a-e
XP 12284 AS 1.2 b 4.0 ab 3.2 efg 6.0 5.7 cd 6.1 gh 1.6 5.9 f
XP 12292 AS 1.1 cde 3.4 i 3.3 b-g 6.0 5.5 cde 6.5 b-f 1.7 6.4 a-e
XP 2670168 AS 1.0 cde 3.7 c-h 3.4 a-e 6.1 5.6 cde 6.5 b-f 1.7 6.7 a-d
Hot peppers
ACX 400 AC 5.0 x 5.9 x 1.4 x 1.2 y 1.4 x 4.1 x 1.6 y 6.4 x
Summer Heat 5000 AC 4.0 y 2.9 z 1.0 y 6.8 x 0.8 y 4.1 x 1.8 x 6.5 x
Summer Heat 6000 AC 4.0 y 3.2 y 1.0 y 6.8 x 0.8 y 4.3 x 1.7 xy 6.5 x
Probability (sweet peppers) 0.0009 <.0001 0.0003 0.30 <.0001 0.0003 0.08 0.01
Probability (hot peppers) <.0001 <.0001 <.0001 <.0001 <.0001 0.29 0.04 0.06

1See Appendix A for seed source codes.

2Fruit shape - 1 is blocky; 2 is elongated; 3 is tapered; 4 is jalapeño; 5 is Hungarian wax.

3Outside color - 1 to 3 is light to dark yellow; 4 is yellow green; 5 to 7 is light to dark green.

4Overall score - Overall score includes appearance but not yield. The higher the number the better the pepper.

5Values in the same column followed by the same letter are not significantly different at the 0.05 level. The hot peppers were analyzed separately from the sweet peppers.

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Table 37. Cumulative yields of marketable (US Fancy + US #1) peppers in the Oakes Irrigation Research Site 2000 pepper hybrid performance trial.
Hybrid Seed source1 Cumulative marketable yield of peppers as of:
Aug 11 Aug 16 Aug 25 Aug 31 Sept 8 Sept 15 Sept 22

---------------------- 1000s of pounds per acre ------------------------

Sweet peppers
ACX 217 AC 1.9 cde2 6.4 de 9.9 c-f 12.5 c-f 14.5 c-g 15.4 c-g 16.7 c-f
Aladdin X3R PS 0.7 fgh 3.2 f-i 6.0 h-k 9.0 f-i 10.8 ghi 11.4 hi 12.5 gh
Brigadier NV 1.4 d-g 4.2 e-h 8.1 d-i 10.1 e-i 12.3 d-i 13.4 d-i 14.2 e-h
Commandant NV 1.4 d-g 4.9 d-g 8.5 d-i 11.9 c-g 14.5 c-g 15.8 c-g 16.7 c-f
Crusader(RPP 6110) NV 0.1 h 2.1 hi 5.9 ijk 8.8 f-i 11.5 f-i 13.0 e-i 13.9 e-h
King Arthur PS 2.3 cd 5.2 def 9.1 c-h 12.3 c-g 15.4 b-f 16.9 b-e 17.6 b-e
North Star PS 2.7 c 7.5 cd 10.7 cd 14.4 bcd 16.3 bcd 17.3 bcd 18.1 bcd
Paladin NV 6.3 a 12.0 a 16.3 a 19.0 a 21.6 a 22.5 a 23.3 a
Summer Sweet 830 AC 1.3 d-h 3.9 e-i 6.9 f-j 9.2 f-i 11.3 ghi 12.1 ghi 12.7 gh
Summer Sweet 890 AC 1.0 e-h 3.4 f-i 5.9 ijk 7.5 hi 10.0 hi 11.0 i 12.3 gh
Enterprise AS 0.7 e-h 3.3 f-i 5.5 ijk 8.4 ghi 11.3 f-i 13.5 d-i 14.1 e-h
EX 12283 AS 0.8 e-h 3.4 f-i 5.8 ijk 8.2 ghi 12.2 d-i 13.8 d-i 15.1 d-h
EX 12285 AS 0.9 e-h 3.0 f-i 6.4 g-j 9.2 f-i 11.6 f-i 13.0 f-i 14.5 d-h
EX 2670155 AS 0.2 gh 1.6 i 3.2 k 6.6 i 9.2 i 10.6 i 11.6 h
EX 2670169 AS 1.2 d-h 4.0 e-i 7.6 d-i 9.1 f-i 12.2 d-i 13.9 d-i 14.9 d-h
Intrepid AS 1.8 c-f 5.5 def 10.1 cde 12.7 b-f 14.7 c-g 16.1 b-f 17.0 b-f
Lexington AS 0.6 fgh 3.7 f-i 7.4 e-i 11.3 d-h 13.8 c-h 15.0 c-h 15.6 c-g
XP 12262 AS 1.9 cde 7.0 cd 12.3 bc 15.9 abc 17.9 abc 18.7 abc 19.2 bc
XP 12279 AS 1.0 e-h 3.1 f-i 6.2 g-k 8.8 f-i 11.8 e-i 12.9 f-i 13.8 fgh
XP 12284 AS 0.5 gh 2.2 hi 4.0 jk 6.7 i 9.6 i 11.0 i 11.9 gh
XP 12292 AS 0.5 gh 2.6 ghi 5.8 ijk 10.2 e-i 14.4 c-g 15.8 c-g 16.6 c-f
XP 2670168 AS 0.7 e-h 4.2 e-i 7.3 e-i 9.8 e-i 11.3 f-i 12.0 ghi 13.5 fgh
Hot peppers
ACX 400 AC 5.6 a 10.2 ab 14.2 ab 16.7 ab 18.9 ab 19.8 ab 20.6 ab
Summer Heat 5000 AC 4.1 b 9.3 bc 11.7 bc 13.5 b-e 15.8 b-e 16.8 b-f 18.3 bcd
Summer Heat 6000 AC 2.9 c 7.3 cd 9.3 c-g 11.2 d-h 12.8 d-i 13.6 d-i 14.6 d-h
C.V. (%) 49 37 28 26 22 19 17
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. Sweet and hot peppers analyzed together.

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