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Coriander is a poor competitor, especially
with perennial weeds. Ensure that perennial weeds are under control before sowing. Weeds
can cause yield loss and excessive dockage losses. Few herbicides are registered. Contact
Manitoba Agriculture, Food & Rural Initiatives for more information. Link:
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Grasshoppers and leafhoppers can damage
coriander. Grasshopper heads and parts in the harvested crop can result in downgrading.
Leafhoppers spread aster yellows disease.
Yield enhancements with the use of honey bees for pollination have been reported.
Link:
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Diseases affecting Coriander
Damping off and root rot cause yellowing
and death of emerging seedlings.
Aster yellows is a disease carried by leafhoppers. Infected plants become evident at
flowering time, when their flowers turn yellow and they often grow taller than uninfected
plants. Plants do not set seed.
Sooty mold is a fungal disease that can affect stems and seed damaged by hail or heavy
rain.
Link:
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Yield increases with honeybees for pollination have been reported.
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Storage and Harvesting
Coriander
Store at less than 10 percent moisture with green material removed as soon as possible.
The seed "cures" in early storage, and aeration assists this process. Therefore,
aeration is strongly recommended even if the seed is harvested dry. Hot-air drying is not
recommended. A moisture chart for coriander is not available, but a sunflower moisture
chart provides a close estimate.
Downgrading or rejection can result from insect parts, rodent droppings, weed seeds,
other foreign material, overly dark colour or splits greater than 5 percent. Cleanouts of
15-20 percent are typical.
Buyers judge quality according to aroma, colour and purity. Colour should be tan, aroma
good and sample greater than 99 percent pure, whole seed. Colour is preserved by ensuring
crop does not lay in swath for too long. Aroma is preserved by proper curing and storage.
Coriander has a bulk density of approximately 22-25 lb/bu.
Harvest
Swath when the fruit is tan to brown in colour. Since the swath is quite prone to wind
damage and coriander is less prone to shattering than caraway, direct combining has been
successful. Thresh when moisture is below 15 percent, however threshing when the fruit is
very dry can lead to excessive splitting. Swathing or threshing in damp weather or when
the crop is tough with dew may help to minimize shattering losses and splitting. Yield
typically ranges from 800-1,000 lb/acre, and yields up to 2,500 lb/acre have been reported
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Estimated Cost of Production (2002)
Coriander Estimated Cost of Production in
Manitoba |
| Operating Costs |
$/acre |
Your Farm |
| Seed |
24.00 |
___________ |
| Fertilizer (50 lb N, 25 lb P) |
22.50 |
___________ |
| Chemicals (Edge) |
17.00 |
___________ |
| Fuel |
11.00 |
___________ |
| Machinery Operating Costs |
10.00 |
___________ |
| Hail Insurance |
6.00 |
___________ |
| Other Costs |
7.50 |
___________ |
| Land Taxes |
5.50 |
___________ |
| Drying Costs |
0 |
___________ |
| Interest on Operating |
3.60 |
___________ |
| TOTAL OPERATING COSTS |
107.10 |
___________ |
| Fixed Costs |
|
|
| Land Investment Costs |
16.00 |
___________ |
| Machinery Depreciation |
17.50 |
___________ |
| Machinery Investment Costs |
7.00 |
___________ |
| Storage Costs |
2.14 |
___________ |
| TOTAL FIXED COSTS |
42.64 |
___________ |
| TOTAL OPERATING AND FIXED COSTS |
149.70 |
___________ |
| Labour |
13.50 |
___________ |
| TOTAL COSTS |
163.20 |
___________ |
| |
|
|
| Expected Yield (lb) |
700 |
____________ |
| |
|
|
| Break-even Price (lb) |
|
____________ |
| Operating |
0.15 |
____________ |
| Operating and Fixed |
0.21 |
____________ |
| Total |
0.23 |
____________ |
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