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Leading Supplier of Innovative Dormancy & Sprout Control
Products for Year Around Potato Storage
1,4SEEDPotato Seed Sprout EnhancerAddie Waxman
Potato Industry
Fresh Processed
Potato Seed
True Potato Seed
Each seed is genetically different
Each seed would produce a different
potato variety
Each field would produce potatoes
with different sizes, shapes, colors,
sugar content, and specific gravity
North American potato industry relies
upon uniformity in large scale operations.
Potato Seed
Tuber Seed
Cut
Whole Drop
Genetically the same across
the field
Similar emergence, tuber set,
and harvest timing
Improves productivity
with large scale operation
Tuber Seed
Grown and harvested from mother plant
Stored from harvest (September to October) until
planting (April to June)
CRITICAL FOR SPRING
PLANTING
Timing of sprout emergence
Need for 1,4SEED
Timing of Sprout Emergence
Over sprouting
Short dormancy varieties
Aged stressed seed
Storage temperature issues
Extended shipping season
Long Sprouts
Need for 1,4SEED
Timing of Sprout Emergence
Lose sprouts during
hog-out
Delayed response
in field
Lose valuable field
time for maturity
1,4SEED Controls timing
of sprout emergence
1,4-Dimethylnaphthalene
• Temporarily suppress cell division and sprout growth
• Normal sprout growth resumes when chemical residue
dissipates
• Resets the physiological clock of seed
• Sprouting vigor is increased
• Registered for seed use since 1999
Registered in United States as a Bio-Control
Found naturally in the peel of the potato
Tolerance exempt
1,4SEED
Treatment of
Gold Rush Variety
Even emergence of plants
Even row closure
Vigorous growth
Potato Plants without
1,4SEED treatment
Lack Vigor
Poor/Lack of Emergence
Poor Row Closure
Total Yield Impact
Size Impact
Project Request
Prince Edward Island
Summer 2015
Columba Variety
Field skips
Uneven emergence
1,4GROUP In-house Study
4 varieties of seed:
Columba
Agata
Cyclamen
Noelle
1,4SEED Application
Rates
10ppm
15ppm
20ppm
Untreated Control
15ppm 1,4DMN
Columba Seed
8 Weeks
after treatment
5-13-2016
10ppm 1,4DMN
20ppm 1,4DMN
Sprout Index of Columba Seed
8 Weeks after Treatment
5-13-2016
Treatment 3-17-16 4-15-16 5-4-16 5-13-16
UntreatedControl
19.9 15 25 35
10ppm 1,4DMN
0.2 4.9 10.5
15ppm 1,4DMN
0.2 0 7.5
20ppm 1,4DMN
0 0 3.6
Agata Seed
8 Weeks after
Treatment
5-13-2016
10ppm
1,4DMN
20ppm
1,4DMN
15ppm
1,4DMN
Untreated
Control
Sprout Index of Agata Seed
8 Weeks after Treatment
5-13-2016
Treatment 3-17-16 4-15-16 5-4-16 5-13-16
UntreatedControl
8.7 3.9 7.0 18.2
10ppm 1,4DMN
0 0 12.4
15ppm 1,4DMN
0 0 7.3
20ppm 1,4DMN
0 0 3.5
Cyclamen Seed
8 Weeks
after treatment
5-13-2016
10ppm
1,4DMN
20ppm
1,4DMN
15ppm
1,4DMN
Untreated
Control
Sprout Index of Cyclamen Seed
8 Weeks after Treatment
5-13-2016
Treatment 3-17-16 4-15-16 5-4-16 5-13-16
UntreatedControl
7.8 8.7 19.8 35
10ppm 1,4DMN
2.6 1.4 9.6
15ppm 1,4DMN
0 0 3.4
20ppm 1,4DMN
0 0 1.9
Noelle Seed
8 Weeks
after
treatment
5-13-2016
Untreated
Control
15ppm
1,4DMN
20ppm
1,4DMN
10ppm
1,4DMN
Sprout Index of Noelle Seed
8 Weeks after Treatment
5-13-2016
Treatment 3-17-16 4-15-16 5-4-16 5-13-16
Untreated
Control
1.8 2.2 2.7 14.1
10ppm
1,4DMN
0.3 1.3 2.1
15ppm
1,4DMN
0 0 0.6
20ppm
1,4DMN
0 0 0.3
Commercial Seed Trial
Imle Seed Farm – Northern Minnesota
Variety – Dakota Rose
Treated – 4-16-2010
10ppm 1,4SEED
Stand/Stem Counts
Emergence
Vigor of plants
Sizing of potatoes
Commercial Seed Trial
Untreated Seed Treated Seed 10ppm 1,4SEED
Additional studies:
New Brunswick
Manitoba
Mexico
6 Weeks after
Planting
Conclusions
1,4SEED breaks apical dominance of seed piece
Reduces number of “blind” seed pieces
Increases number of active eyes per seed piece
1,4SEED provides even emergence of potato plants
Varietal response to 1,4SEED based upon natural dormancy
Early sprouting varieties break dormancy sooner after
1,4SEED treatment than varieties with longer dormancy
Dose response to 1,4SEED
Higher application rates of 1,4SEED delay sprouting longer
than lower application rates
Future Projects with 1,4SEED
Thank You!
Discussions/Questions
