Bob
Precheur, Thom Harker, Mac Riedel, Jim Jasinski, Karen Magnuson, Celeste Welty,
Becky Lyon, Gretchen Sutton, Brad Bergefurd, Dept. of Horticulture and Crop
Sci., Pl. Pathology, Entomology The Enterprise Center at Hillsboro, OSU
Columbus.
At Hillsboro, This Pumpkin Cultivar Trial compared 23 cultivars
from different size categories using 4 replications of each cultivar. Objectives were to evaluate potential
pumpkin cultivars for their suitability in a southern Ohio growing season. The plots were located at the Ohio State
University Enterprise Center research and demonstration plots at Southern
States Community College in Hillsboro, Ohio.
Planting: On a Haubstadt silt loam,
fertilizer was applied as 120 lbs. N,
120 lbs. P2O5, 102 lbs. K2O per
acre prior to planting according to soil test recommendations. Pumpkins were
direct seeded to the field on June 9, 2000 in rows planted 10 feet apart, with
3 feet between each seed.
Weed
Control: 4 pt./acre Curbit 3EC was
applied after planting; hand hoed and
cultivated as necessary.
Pest
Management: 2.5 fl. Oz. Furadan 4F per
1000 linear feet of row applied as a 7 inch band over the row after
planting. 5 fl. oz/acre of Pounce and 1
qt./acre of Sevin XLR was applied with the fungicide applications. Fungicides applied were as follows: 2 lb./acre Bravo Ultrex as a tank mix with
0.5lb/acre of Benlate rotated with 15.4 oz./acre of Quadras. Harvest was on
October 11, 2000
RESULTS:
Vine health and quality remained good throughout the growing season. Pumpkin yield and quality attributes were
collected and observed.
Pro Gold 500, Autumn King and Trojan yielded best of the large size
cultivars, averaging 20 tons per acre
or better. The average fruit weight of
these cultivars ranged from 21 lbs. to 22 lbs.
Gold Fever, Gold Standard and Howdy Doody were best among the medium size
cultivars, all yielding between 14 and 17 tons per acre. In this size category
the average fruit weight ranged from 11 to 17 lbs. per pumpkin.
The best yielding pumpkins in the small category were Touch of Autumn,
Pik-A-Pie and Mystic, with yields of 8 to 12 tons per acre. In this size
category the average fruit weight ranged from 5 lbs. to 7 lbs. per
pumpkin.
Summary of Results at Columbus
In Columbus, the cultivars were divided into 2 experiments or size
categories. In each experiment, half of the 4 replications were sprayed with a
standard chemical disease control program and all plots received standard
insecticide applications during the season.
Because of a sprayer malfunction, there were only 2 fungicide
applications for powdery mildew control. Even with this minimal disease control
program there was a significant difference in powdery mildew development on no
fungicide plots compared to fungicide treated plots. The varieties Merlin and
Magic Lantern showed significant resistance to powdery mildew development on
the foliage compared to other varieties. In regards to handle quality, even
though there was no significant difference between fungicide treated and no fungicide
plots, the varieties Howden, Lil Pump-ke-mon, Autumn King, Merlin and Magic
Lantern had handles significantly free of powdery mildew in comparison to Gold
Fever and Gold Bullion.
The best large and medium sized varieties in terms of tons per acre were:
Gold Rush, Autumn King, Pro Gold 200 and Howdy Doody. The largest average fruit
size (lb per fruit) was observed in varieties: Magic Lantern, Gold Rush and
Howden Biggie. The best small varieties with an average fruit size of 2-4 lbs
were Touch of Autumn at 6 tons/A and Pic-A-Pie, 4 tons/A. Touch of Autumn has
good tolerance to powdery mildew.
Table 1, 2000 Pumpkin
Cultivar Evaluation, Hillsboro, OH
|
|
|
Marketable Orange
|
Average Fruit Size |
|||||
|
Variety |
Seed Source |
Fruit/A |
Tons/A |
|
lbs. |
|
|
|
|
Pro Gold 500 |
AC |
2337.00 |
26.57 |
|
22.61 |
|
|
|
|
Autumn King |
NV |
2173.90 |
24.56 |
|
21.86 |
|
|
|
|
Trojan |
SW |
1847.80 |
21.59 |
|
22.61 |
|
|
|
|
Ol Zeb |
RP |
2119.60 |
18.01 |
|
16.48 |
|
|
|
|
Trax Field |
SW |
1684.80 |
17.84 |
|
20.89 |
|
|
|
|
Gold Bullion |
RP |
2119.60 |
17.78 |
|
16.46 |
|
|
|
|
Magic Lantern |
HM |
1956.50 |
15.66 |
|
16.11 |
|
|
|
|
Pro Gold 510 |
AC |
1467.40 |
15.20 |
|
21.54 |
|
|
|
|
Longface |
PS |
1250.00 |
14.33 |
|
22.20 |
|
|
|
|
Gold Strike |
RP |
1467.40 |
13.31 |
|
18.19 |
|
|
|
|
Pro Gold 200 |
AC |
1195.70 |
12.12 |
|
22.05 |
|
|
|
|
Gold Rush |
RP |
923.90 |
11.51 |
|
19.85 |
|
|
|
|
LSD |
|
1741.60 |
8.57 |
|
6.92 |
|
|
|
Table 2. Medium Pumpkins, Hillsboro, OH
|
|
|
Marketable Orange |
Average Fruit Size |
|||||
|
Variety |
Seed Source |
Fruit/A |
Tons/A |
|
lbs. |
|
|
|
|
Gold Fever |
RP |
255.40 |
17.80 |
|
13.76 |
|
|
|
|
Gold Standard |
RP |
2337.00 |
14.36 |
|
12.14 |
|
|
|
|
Howdy Doody |
RP |
1684.80 |
12.10 |
|
14.24 |
|
|
|
|
Appalachian |
PS |
3315.20 |
11.72 |
|
11.24 |
|
|
|
|
LSD |
|
1741.60 |
8.57 |
|
6.92 |
|
|
|
Table 3. Small to Mini Pumpkins, Hillsboro, OH
|
|
|
Marketable Orange |
Average Fruit Size |
||||||
|
Variety |
Seed Source |
Fruit/A |
Tons/A |
|
lbs. |
|
|
||
|
Touch of Autumn |
NV |
4510.90 |
12.13 |
|
7.69 |
|
|
||
|
Pik-A-Pie |
RP |
4021.70 |
9.00 |
|
4.58 |
|
|
||
|
Mystic |
HM |
3097.80 |
8.46 |
|
5.54 |
|
|
||
|
Hybrid Pam |
SW |
2771.70 |
7.84 |
|
5.66 |
|
|
||
|
Baby Pam |
SW |
3423.90 |
4.89 |
|
2.89 |
|
|
||
|
Wee-Be-Little |
NV |
5217.40 |
2.22 |
|
1.41 |
|
|
||
|
Pro Gold 100 |
AC |
3206.50 |
1.81 |
|
1.38 |
|
|
||
|
LSD |
|
1741.60 |
8.57 |
|
6.92 |
|
|
||
Table 4. Large, Medium and Small Size Pumpkins-2000, Columbus, OH
LARGE AND MEDIUM
|
|
|
|
|
|
|
|
|||||||||||||||||||||||||
|
|
|
Marketable Orange Fruit |
|
Average Fruit Size |
|
Powdery Mildew Rating* |
|
Powdery Mildew on
Handle** |
||||||||||||||||||||||||
|
Variety |
Source |
No./A |
Tons/A |
|
lbs |
|
16 Aug |
|
16
Aug
|
|||||||||||||||||||||||
|
Gold Rush |
Rupp |
898 |
9.2 |
|
20.6 |
|
3.5 |
|
1.5 |
|||||||||||||||||||||||
|
Autumn King |
NV |
1470 |
8.4 |
|
10.7 |
|
3.7 |
|
2.0 |
|||||||||||||||||||||||
|
Pro Gold 200 |
AC |
953 |
8.3 |
|
16.6 |
|
1.0 |
|
1.0 |
|||||||||||||||||||||||
|
Howdy Doody |
Rupp |
2233 |
8.1 |
|
7.2 |
|
4.7 |
|
1.7 |
|||||||||||||||||||||||
|
Magic Lantern |
HM |
1878 |
8.0 |
|
9.0 |
|
3.0 |
|
2.0 |
|||||||||||||||||||||||
|
Merlin |
HM |
1361 |
6.7 |
|
10.0 |
|
2.5 |
|
2.0 |
|||||||||||||||||||||||
|
Gold Standard |
Rupp |
1933 |
6.3 |
|
6.7 |
|
5.5 |
|
1.2 |
|||||||||||||||||||||||
|
Pro Gold 510 |
AC |
1144 |
6.3 |
|
10.8 |
|
4.7 |
|
1.5 |
|||||||||||||||||||||||
|
Gold Bullion |
Rupp |
1797 |
6.1 |
|
6.8 |
|
5.0 |
|
1.2 |
|||||||||||||||||||||||
|
Howden Biggie |
HM |
680 |
5.8 |
|
17.6 |
|
4.2 |
|
1.5 |
|||||||||||||||||||||||
|
Gold Fever |
Rupp |
1443 |
5.1 |
|
7.2 |
|
5.0 |
|
1.2 |
|||||||||||||||||||||||
|
Howden |
HM |
681 |
3.9 |
|
10.5 |
|
4.0 |
|
2.0 |
|||||||||||||||||||||||
|
LSD 0.05 |
|
2192 |
3.5 |
|
2.9 |
|
1.1 |
|
5.8 |
|||||||||||||||||||||||
|
SMALL |
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||||
|
|
|
Marketable Orange Fruit |
|
Average Fruit Size |
|
Powdery Mildew Rating* |
|
Powdery Mildew on Handle** |
||||||||||||||||||||||||
|
Variety |
Source |
No./A |
Tons/A |
|
lbs |
|
16 Aug
|
|
16 Aug
|
|||||||||||||||||||||||
|
Lil
Pump-Ke-Mon |
HM |
1987 |
0.8 |
|
0.8 |
|
3.3 |
|
2.0 |
|||||||||||||||||||||||
|
Touch of
Autumn |
NV |
5853 |
5.7 |
|
1.9 |
|
1.0 |
|
1.0 |
|||||||||||||||||||||||
|
Pic-A-Pie |
Rupp |
2505 |
4.2 |
|
3.4 |
|
1.0 |
|
1.0 |
|||||||||||||||||||||||
|
Pro Gold 100 |
AC |
1116 |
0.9 |
|
2.1 |
|
1.0 |
|
1.0 |
|||||||||||||||||||||||
|
LSD 0.05 |
|
1878 |
3.3 |
|
2.8 |
|
1.3 |
|
0.8 |
|||||||||||||||||||||||
* 1 = no trace of mildew, 2=1-25%, 3=26-80%,
4=51-75%, 5=76-100% foliage with fungal colonies
and 6= necrotic leaves.
** 1 = presence
of mildew on handle; 2= no mildew.
Table 5, 2000 Small and Large Fruited Pumpkin Spray
Program Evaluation, Columbus, OH
|
Small Fruited Pumpkin |
|
|
|
|
|
|
|
|
|
|
|||||||||||||||
|
|
|
Marketable Orange Fruit |
|
Average Fruit Size |
|
Powdery Mildew Rating* |
|
Powdery Mildew on Handle** |
|||||||||||||||||
Spray Program
|
|
No./A |
Tons/A |
|
lbs |
|
16 Aug
|
|
16 Aug
|
|
|||||||||||||||
|
No Fungicide |
|
2573 |
4.7 |
|
5.8 |
|
4.6 |
|
1.5 |
|
|||||||||||||||
|
Fungicide |
|
2641 |
4.9 |
|
6.2 |
|
4.8 |
|
1.3 |
|
|||||||||||||||
|
LSD 0.05 |
|
1328 |
2.4 |
|
1.9 |
|
0.9 |
|
0.6 |
|
|||||||||||||||
|
Large & Medium Fruited Pumpkins |
|
|
|
|
|
|
|||||||||||||||||||
|
|
|
Marketable Orange Fruit |
|
Average Fruit Size |
|
Powdery Mildew Rating* |
|
Powdery Mildew on Handle** |
|||||||||||||||||
Spray Program
|
|
No./A |
Tons/A |
|
lbs |
|
16 Aug
|
|
16 Aug
|
|
|||||||||||||||
No Fungicide
|
|
1488 |
7.0 |
|
15.6 |
|
4.4 |
|
1.5 |
|
|||||||||||||||
|
Fungicide |
|
1352 |
5.5 |
|
9.4 |
|
3.7 |
|
1.7 |
|
|||||||||||||||
|
LSD 0.05 |
|
324 |
1.7 |
|
11.1 |
|
0.4 |
|
0.2 |
|
|||||||||||||||
* 1 = no trace
of mildew, 2=1-25%, 3=26-80%, 4=51-75%, 5=76-100% foliage with fungal colonies
and 6= necrotic leaves.
** 1= presence
of mildew on handle.; 2= no mildew
Key To Sources
AC = Abbott Cobb NV
= Novartis
HM = Harris Moran Rupp
= Rupp Seeds, Waseon, OH