Oakes Irrigation Research Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2744, FAX: (701) 742-2700, E-mail: Walter.Albus@ndsu.edu

 

CARROT HYBRID PERFORMANCE TRIAL

W. Albus, L. Besemann and H. Eslinger

 

Results summary

Table 1.  US #1 and total carrot yield for carrots in the cello carrot hybrid performance trial

Table 2.  Root characteristics of carrots in cello carrot hybrid performance trial.

Table 3.  US #1 and total carrot yields in the jumbo carrot hybrid performance trial.

Table 4.  Root characteristics in the jumbo carrot hybrid performance trial.

Table 5.  Number 1 and total carrot yields in the dicer carrot hybrid performance trial.

Table 6.  Root characteristics of carrots in the dicer carrot hybrid performance trial.

 

           In North Dakota, carrots grow very well.  We tested cello, jumbo and dicing types of carrots.

 

MATERIALS AND METHODS

 

 

Soil:

Embden loam; pH=7.1; 2.9% organic matter; soil-P and  soil-K were very high, soil-S was low.

Previous crop:

2006 – barley; 2005 – cabbage; 2004 – field corn.

Seedbed Preparation:

Strip till fall of 2006.

Planting:

Direct seeded raw carrot seeds on April 25 with a Monosem precision planter.  Carrot planting pattern was 2 lines per row (2.5 inches between lines in a row) for the processing and dicing carrots and 3 lines per row (2 inches between lines in the row) for the cello carrots with all rows on 16-inch centers. Planting rate was about 300,000 seeds/acre for dicing, 500,000 seeds/acre for jumbo and 800,000 seeds/acre for cello.

Plots:

Plots were 17 ft long by three feet wide (two rows plus the wheel track).  The study had 4 reps.

Fertilizer:

November 2006, broadcast 9 lbs N/acre, 43 lbs P2O5/acre, 101 lbs K2O/acre and 13 lbs S/acre as 11-52-0, 0-0-60 and 90% elemental Sulfur.  April 30 applied 30 lbs N/acre as 28-0-0.  Sidedressed 30 lbs N/acre as 32-0-0 on June 5, June 20, June 28 and July 13.

Irrigation:

Overhead sprinkler irrigation as needed.

Pest  control:

Weed control Lorox (1 lb/acre) and Glyphosate (1 qt/acre) + NIS (0.5% v/v) + AMS (1 lb/10 gal) on April 27, Fusilade (10 oz/acre) + NIS (0.5% v/v) on May 9, Select (8 oz/acre) + COC (1.0 % v/v) on June 4 and Lorox (2 lbs/acre) on June 5, Fusilade (12 oz/acre) + NIS (0.5% v/v) on July 20 and by hand weeding.  Sprayed Sevin (2 qt/acre) on June 25, July 11 and July 27, and Baythroid (2 oz/acre) on July 2 and July 20, August 3, August 8 and August 24 to control flea beetles.

Harvest:

The carrots were all harvested once: cello on July 19 and July 20, jumbo on September 19 to September 21 and dicing on September 25 and September 26.  The harvest area was two rows wide by six feet long for all carrots.

 

RESULTS

 

           Basel had the highest marketable and total yield of the cello carrots.  Nadrin had the highest yield of # 1 carrots, Cupar had the highest total yield and Nevada had the highest % of dry matter for the jumbo carrots.  Cupar had the highest yield in both the # 1 carrots and the total yield in the dicing carrot trial.

 

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Table 1.  US #1 and total carrot yield for carrots in the Oakes Irrigation Research Site 2007 cello carrot hybrid performance trial.

Hybrid

Seed Source1

US #1 carrots

Total yield

Total roots

Yield (by root diameter in inches)

Multiroot

>1.5

1.0 to1.5

0.75 to1.0

total

 

 

--------------------------------- tons/acre -----------------------------------

tons/acre

tons/acre

1000s/acre

Basel

BE

2.0

9.1

1.5

12.5

2.7

17.7

221.9

Inverness

BE

0.0

3.3

2.5

5.8

5.3

13.1

127.3

Napa

BE

0.0

5.9

2.4

8.4

4.4

15.0

179.7

Nevada

BE

0.0

3.8

1.9

5.8

4.8

12.9

136.1

 

MEAN

 

0.5

5.5

2.1

8.1

4.3

14.7

166.2

C.V. (%)

 

91.3

16.9

42.3

11.5

21.9

7.7

7.1

LSD (0.05)

 

0.7

1.5

NS

1.5

1.5

1.8

19.0

1See Appendix A for a list of the seed sources.

 

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Table 2.  Root characteristics of carrots in the Oakes Irrigation Research site 2007 cello carrot hybrid performance trial.

Hybrid

Seed source1

Average length

Root dia

Core dia.

Cortex color2

Core color2

Contrast3

Unniformity

Overall score

Brix Score4

 

 

---------------- inches ------------------

------- 1 to 4 -------

-------- 1 to 5 --------

1 to 10

 

Basel

BE

6.5

1.18

0.70

3

3

4

3.3

7.5

7.0

Inverness

BE

9.4

1.02

0.51

3

3

4

2.8

6.6

7.7

Napa

BE

7.0

1.16

0.59

3

3

4

3.0

7.1

7.7

Nevada

BE

7.8

1.12

0.60

3

3

4

2.5

6.4

8.0

 

MEAN

 

7.7

1.12

0.60

3

3

4

2.9

6.9

7.6

C.V. (%)

 

7.9

10.4

14.7

0

0

0

7.1

6.6

8.2

LSD (0.05)

 

0.4

NS

NS

NS

NS

NS

0.3

0.7

NS

1See Appendix A for a list of the seed sources.

2Color: 1=yellow orange; 2=light orange; 3=medium orange; 4=dark orange;

3Contrast between cortex and core.  The higher the number the lower the contrast.

4The Brix score is a measure of soluble solids and is usually related to the amount of sugar in the carrot – higher is sweeter.

 

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Table 3.  US #1 and total carrot yields in the Oakes Irrigation Research Site 2007 jumbo carrot hybrid performance trial.

Hybrid

Seed source1

US #1 carrots

Total yield

Total roots

yield (by root diameter in inches)

Total yield

Root size

>2.5

1.5 to 2.5

1.0 to 1.5

total

 

 

-----------------------tons/acre--------------------

%

oz/root

tons/acre

1000s/ac

Bastia

BE

0.9

12.6

1.4

14.8

50.7

6.3

29.2

78.2

Bergen

BE

0.4

19.6

6.1

26.2

61.5

4.9

42.5

174.9

Canterbury

BE

5.3

19.2

0.6

25.1

68.9

6.6

36.6

123.9

Carson

BE

5.8

10.0

0.2

16.1

50.6

8.8

31.4

61.3

Cupar

BE

6.0

25.0

1.3

32.4

62.7

5.9

51.9

178.3

Nandrin

BE

0.4

28.0

5.8

34.3

66.8

5.7

51.3

199.4

Nectar

BE

0.5

16.8

8.0

25.5

62.7

3.8

40.4

219.8

Nevada

BE

0.0

9.2

7.6

17.4

48.4

3.4

35.2

172.9

 

MEAN

 

2.4

17.6

3.9

24.0

59.0

5.7

39.8

151.1

C.V. (%)

 

81.0

26.2

36.5

17.8

11.9

15.0

13.3

19.6

LSD (0.05)

 

2.9

6.8

2.1

6.3

10.4

1.2

7.8

43.6

1See Appendix A for a list of the seed sources.

 

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Table 4.  Root characteristics in the Oakes Irrigation Research Site 2007 jumbo carrot hybrid performance trial.

Hybrid

Seed source1

Multiple root

Average length

Root diameter

Core diameter

Uniformity

Overall score

Dry matter

 

 

%

------------------- inches ---------------------------

1 to 5

1 to 10

%

Bastia

BE

41.3

8.0

1.93

1.09

3.1

7.1

12.0

Bergen

BE

30.7

8.1

1.81

1.16

3.3

7.5

12.2

Canterbury

BE

22.6

6.8

1.98

1.02

2.9

6.9

12.2

Carson

BE

32.4

6.8

2.02

1.12

2.9

7.0

13.5

Cupar

BE

29.7

6.8

1.98

1.12

3.1

7.5

12.2

Nandrin

BE

23.0

7.9

1.73

0.94

3.3

7.6

11.9

Nectar

BE

24.2

6.9

1.78

0.89

3.3

7.5

13.6

Nevada

BE

43.8

8.8

1.64

0.82

3.5

7.9

14.1

 

MEAN

 

31.0

7.5

1.9

1.02

3.2

7.4

12.7

C.V. (%)

 

20.9

8.0

6.0

12.2

10.2

4.4

4.7

LSD (0.05)

 

9.5

0.9

0.17

0.18

NS

0.5

0.9

1See Appendix A for a list of the seed sources.

 

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Table 5.  US # 1 and total carrot yields in the Oakes Irrigation Research Site 2007 dicer carrot hybrid performance trial.

Hybrid

Seed source1

US #1 carrots

Total yield

Total roots

yield (by root diameter in inches)

Total yield

Root size

>2.5

1.5-2.5

1.0-1.5

total

 

 

-------------------- tons/acre ---------------------

%

oz/root

tons/acre

1000s/A

Bastia

BE

3.7

16.1

      0.6

20.4

55.8

2.4

36.4

77.6

Bergen

BE

0.3

 18.6

4.6

23.6

58.5

3.8

40.0

120.5

Canterbury

BE

9.7

11.1

0.2

21.0

59.3

2.6

35.3

82.4

Carson

BE

9.2

9.0

0.3

18.5

56.9

2.0

32.1

63.3

Cupar

BE

17.4

14.9

0.2

32.5

58.5

3.5

55.8

113.0

Nandrin

BE

1.3

27.9

2.3

31.5

66.0

4.3

47.7

136.8

Nectar

BE

0.7

15.9

4.3

20.9

51.4

3.9

41.0

128.6

 

MEAN

 

6.1

16.2

1.8

24.1

58.0

3.2

41.2

103.2

C.V. (%)

 

57.9

19.1

63.0

15.6

11.7

20.1

8.3

20.5

LSD (0.05)

 

2.2

4.6

1.7

5.6

10.1

1.0

5.1

31.4

1See Appendix A for a list of the seed sources.

 

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Table 6.  Root characteristics of carrots in the Oakes Irrigation Research Site 2007 dicer carrot hybrid performance trial.

Hybrid

Seed source1

Multiple root

Average length

Root diameter

Core diameter

Uniformity

Overall score

 

 

%

--------------------------- inches ---------------------------

1 to 5

1 to 10

Bastia

BE

40.4

7.6

1.97

1.02

3.5

7.5

Bergen

BE

35.2

8.3

2.04

1.30

3.5

7.6

Canterbury

BE

32.5

6.5

2.06

1.29

3.4

7.4

Carson

BE

26.9

6.6

2.23

1.23

3.3

7.1

Cupar

BE

37.7

6.9

2.15

1.19

3.3

7.5

Nandrin

BE

26.1

7.9

1.94

1.02

3.5

7.5

Nectar

BE

36.4

7.9

1.85

1.11

3.5

7.6

 

MEAN

 

33.6

7.4

2.03

1.17

3.4

7.5

C.V. (%)

 

18.7

8.4

7.6

12.0

5.9

4.1

LSD (0.05)

 

9.3

0.9

0.23

0.21

NS

NS

1See Appendix A for a list of the seed sources.

 

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