Bob Precheur, Mac Riedel, Andy Wyenandt, Jim Jasinski, Celeste Welty.
Dept. of Horticulture and Crop Science,
Departments of Plant Pathology Southwest Extension IPM, and Entomology, OSU
Columbus.
Summary of Results at South
Charleston
This project was supported in part by a research grant from the Ohio
Vegetable and Small Fruit Research and Development Fund.
In South Charleston, the 23
cultivars were evaluated for yield and quality and rated for possible disease
resistance. Each cultivar was planted by direct seeding or transplants in plots
30 feet long with 10 feet between rows. All plots were sprayed with a standard
chemical disease control program and received standard insecticide applications
during the season.
In late August and early September, extremely cold and wet weather (5-8
Inches) caused rapid development of powdery and downy mildew. Only varieties
HMX2689 and HMX0683 had a foliar infection rating of 25 to 50%. There was an
early season outbreak of Anthracnose and varieties were rated for foliar
infection, see Table 1.
The best large sized varieties in terms of tons per acre were: Harvest Time, RPX0307, Dependable (ACX103),
and Pro Gold 510. The largest average fruit size (> 27 lbs per fruit) was
observed in varieties: Harvest Time, RPX0307 and Dependable. The best medium
sized pumpkins were Gold Medal, RPX03509, HMX2689, RPX03517 and HMX0683.
New and appealing small varieties with an average fruit size from 1 to 4
pounds were HMX 2690, HMX 3693, HMX 5682 and RPX03102. Features include dark
green handles, good orange color and a hard fruit rind.
Individual pictures plus comparison views among varieties are available
at the VegNet website:
http://vegnet.osu.edu
Table 1, 2003 Pumpkin Cultivar Evaluation, South Charleston, OH
|
ID #
|
Variety
|
Marketable Orange
Fruit/A
|
Marketable Orange
Tons/A
|
Average Fruit Size (lbs)
|
Fruit Diameter (in)
|
Downy Mildew3
|
Virus3
|
Foliar Powdery Mildew Rating1
|
Powdery Mildew on Handle3
|
Anthrac-nose2
|
Source
|
|
2
|
Harvest Time
|
2069
|
28.6
|
33
|
13
|
1
|
1
|
5
|
1.8
|
7.5
|
AC
|
|
10
|
RPX 03507
|
1416
|
23.3
|
33
|
14
|
1
|
1
|
5.3
|
1.3
|
8.5
|
RP
|
|
4
|
ACX 103 Dependable
|
1706
|
23.3
|
27
|
14
|
1
|
1
|
5.8
|
1.5
|
8.3
|
AC
|
|
22
|
HMX 3692
|
1207
|
14.6
|
23
|
12
|
1.5
|
1
|
5
|
2
|
10
|
HM
|
|
1
|
Pro Gold 510
|
2033
|
23.0
|
22
|
13
|
1
|
1
|
5.3
|
1
|
8
|
AC
|
|
16
|
Gold Gem
|
1815
|
19.7
|
21
|
13
|
1
|
1
|
5.8
|
1.5
|
8.5
|
RP
|
|
11
|
RPX 03509
|
1488
|
15.3
|
20
|
12
|
1
|
1
|
6
|
2
|
7.
|
RP
|
|
3
|
ACX 102 (Reliable)
|
2251
|
22.1
|
19
|
11
|
1
|
1
|
4.7
|
2
|
10
|
AC
|
|
15
|
Gold Medal
|
1379
|
13.7
|
19
|
13
|
1
|
1
|
5.5
|
1.8
|
9
|
RP
|
|
20
|
HMX 2689
|
1525
|
14.6
|
19
|
13
|
1.8
|
1.5
|
3.8
|
1.8
|
7.3
|
HM
|
|
7
|
REX 1002
|
1125
|
9.9
|
18
|
12
|
1
|
1
|
5.3
|
1
|
7.5
|
RP
|
|
13
|
RPX 03517
|
1997
|
18.9
|
18
|
12
|
1
|
1.3
|
5
|
2
|
4
|
RP
|
|
6
|
13024469
|
2686
|
20.5
|
15
|
11
|
1
|
1.3
|
5.8
|
1.5
|
7
|
SEM
|
|
8
|
REX 1006
|
2033
|
15.6
|
15
|
12
|
1.5
|
1
|
5.8
|
1.5
|
10
|
RP
|
|
19
|
HMX 0683
|
2468
|
18.7
|
15
|
12
|
1.8
|
1
|
3.8
|
2
|
7.5
|
HM
|
|
12
|
RPX 03515
|
1742
|
11.5
|
13
|
10
|
1.3
|
1
|
4.8
|
1.8
|
7.8
|
RP
|
|
14
|
RPX 03516
|
2468
|
19.4
|
12
|
11
|
1
|
1
|
5
|
2
|
7.5
|
RP
|
|
5
|
1302442
|
1960
|
11.1
|
11
|
11
|
1
|
1
|
5.5
|
1.3
|
7.5
|
SEM
|
|
21
|
HMX 2690
|
4320
|
7.6
|
3.5
|
6.5
|
1.8
|
1.3
|
4.3
|
1.5
|
7.8
|
HM
|
|
23
|
HMX 3693
|
5590
|
7.0
|
2.5
|
6
|
2
|
1.8
|
4.3
|
2
|
3.3
|
HM
|
|
18
|
HMX 5682
|
9184
|
5.1
|
1.1
|
4.4
|
1.3
|
1
|
5.5
|
1.5
|
3
|
HM
|
|
9
|
RPX 03102
|
10128
|
5.1
|
1
|
5
|
1.3
|
1.3
|
5.3
|
1.3
|
2
|
RP
|
|
17
|
Wee-Be-Little
|
7696
|
2.2
|
0.5
|
3.6
|
1
|
1
|
4.3
|
2
|
1.3
|
RP
|
|
|
LSD 0.05%
|
2473
|
7.6
|
4.5
|
1.3
|
|
|
0.8
|
|
4.8
|
|
Key To Disease Ratings in Table 1.
1.
PM: 1 = no or a trace of mildew,
2=1-25%, 3=26-50%, 4=51-75%, 5=76-100% foliage with fungal colonies and 6=
necrotic leaves.
2. Anthracnose:
1 = no or a trace of mildew, 2=1 to 20%, 3=21 to 30, and so on to 10=
all foliage affected and/or dead foliage.
3.
Downy Mildew, Powdery Mildew on handle and Virus Rating:1 = presence of downy mildew on foliage; powdery on handle;
or virus on foliage 2=. no powdery mildew on handle,
downy mildew or virus on foliage.
Key To Sources
AC = Abbott Cobb
HM = Harris Moran
RP = Rupp Seeds, Waseon, OH
SEM = Seminis
Brief Descriptions of Pumpkins 2003, South Charleton, OH
The following is a brief description of each pumpkin cultivar in the 2003
evaluation trial. Some of the comments are provided by the company or source.
The format below is: Variety ID Number – 1; Variety Name – Pro Gold
510; Source (AC) followed by a brief description.
1. Pro
Gold 510, (AC)
This variety has become
a standard in OH and one of the most consistent performers over the years.
Average fruit size is between 18- 20 lbs and usually yields 17 to 19 tons/A.
2.
Harvest Time, (AC)
Introduced
last year. Fruits are elongated, large with a flattened tear drop shape.
Good yields. Desirable for retail markets but maybe not wholesale because of
elongated shape.
3. ACX
102 (Reliable), (AC)
This is the first year
in our trial. Fruit seems to be a thinner and smaller version of Harvest Time.
Handles are very short or stubby. Color is lighter than Harvest Time.
4. ACX
103 (Dependable), (AC)
Large,
round fruit with good yields and color. Handles are nice.
5.
1302442, (SEM)
An
experimental variety with WMV Tolerance. Not available on the market.
6.
13024469, (SEM)
An
experimental variety with WMV Tolerance. Not available on the market. Good
handles.
7. REX
1002, (RP)
Medium to large fruit
(~18lbs) nice color, good handle and ribbing..
8. REX
1006, (RP)
Medium
size fruit (~15 lbs). – Nice round shape with good ribbing. Fruit has a dark
orange color with dark green handles.
9. RPX
03102, (RP)
Wee-Be-Little hybrid
10. RPX 03507, (RP)
Larger
Gold Medal type, average fruit size, ~33 lbs.
11. RPX 03509, (RP)
Smaller
Gold Medal type, average fruit size, ~20 lbs. Semi fragile handles.
12. RPX 03515, (RP)
Medium size fruit with
nice round shape, PMT.
13. RPX 03517, (RP)
Slightly
upright, medium size fruit (~18 lb) with wide ribbing and mostly dark color. Nice handle attachment.
PMT.
14. RPX 03516, (RP)
Slightly
upright, medium size fruit with PMT.
15. Gold Medal, (RP)
Large fruit with good
color (~20-25 lbs) and yields around 15 to 20 tons per acre. Consistent
in size and shape in several years in our trial.
16. Gold Gem, (RP)
Produces fruit of
consistent size and shape around 15 to 18 lbs. Nice
thick handles.
17. Wee-Be-Little, (RP)
Nice small fruit which when
bunched together,look
excellent in displays. Dark green stem forms nice cap on fruit. All America
Selection winner.
18. HMX 5682, (HM)
Strong, sturdy, dark
green handles. Smooth skin with dark color. Hard 1 lb fruit similar to Lil' Ironsides..
19. HMX 0683, (HM)
Medium size Howden type fruits on a semi bush. Tolerant
to some strains of ZYMV. Strongly PMT.
20. HMX 2689, (HM)
Semi-bush. Medium
size (19 lbs) with large, well attached, dark green handle. Strong tolerance to PM. Nice dark color. Good, solid 2-3
inch handle.
21. HMX 2690, (HM)
Semi-bush. Small
size with hard shell. PMT. Solid, hard fruit; nice
color and handles.
22. HMX 3692, (HM)
Large fruits on
semi-bush. Blocky tall shape with thick attractive handles.
Tolerant to PM. Big handles.
23. HMX 3693, (HM)
Small
pumpkin (~2.5 lb) on semi-bush. Hard shell, long dark handle,
prolific. Tolerant to PM. Round, hard fruit, good handles.
Table 2. Additional 2003 Pumpkin
Cultivar Information (Bins per Acre), South Charleston, OH
|
|
|
|
|
|
|
|
|
|
|
ID #
|
Variety
|
Marketable Orange
Fruit/A
|
Marketable Orange Tons/A
|
Average Fruit Size (lbs)
|
Fruit Diameter (in)
|
Bins/A
|
Fruit/Bin
|
Source
|
|
1
|
Pro Gold 510
|
2033
|
23.0
|
22
|
13
|
60
|
33
|
AC
|
|
2
|
Harvest Time
|
2069
|
28.6
|
33
|
13
|
62
|
