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TriSCAN Manual Version 1.2a
Copyright © 1991 2004 Sentek Pty Ltd All rights reserved Page 45
Table 10. Crop Tolerance and Yield Potential of Vegetable Crops as Influenced by Irrigation Water Salinity
(EC
w
) and Soil Salinity (EC
e
) from Ayars and Westcott 1994
Yield Potential
100 % 90 % 75 % 50 % 0 %
(maximum)
Vegetable Crops
EC
e
EC
w
EC
e
EC
w
EC
e
EC
w
EC
e
EC
w
EC
e
EC
w
Squash, zucchini
(Cucurbita pepo
melopepo)
4.7 3.1 5.8 3.8 7.4 4.9 10.0 6.7 15.0 10.0
Beet, red
(Beta vulgaris)
4.0 2.7 5.1 3.4 6.8 4.5 9.6 6.4 15.0 10.0
Squash, scallop
(Cucurbita pepo
melopepo)
3.2 2.1 3.8 2.6 4.8 3.2 6.3 4.2 9.4 6.3
Broccoli
(Brassica oleracea
botrytis)
2.8 1.9 3.9 2.6 5.5 3.7 8.2 5.5 14.0 9.1
Tomato
(Lycopersicon
esculentum)
2.5 1.7 3.5 2.3 5.0 3.4 7.6 5.0 13.0 8.4
Cucumber
(Cucumis sativus)
2.5 1.7 3.3 2.2 4.4 2.9 6.3 4.2 10.0 6.8
Spinach
(Spinacia oleracea)
2.0 1.3 3.3 2.2 5.3 3.5 8.6 5.7 15.0 10.0
Celery
(Apium graveolens)
1.8 1.2 3.4 2.3 5.8 3.9 9.9 6.6 18.0 12.0
Cabbage
(Brassica oleracea
capitata)
1.8 1.2 2.8 1.9 4.4 2.9 7.0 4.6 12.0 8.1
Potato
(Solanum tuberosum)
1.7 1.1 2.5 1.7 3.8 2.5 5.9 3.9 10.0 6.7
Corn, sweet (maize)
(Zea mays)
1.7 1.1 2.5 1.7 3.8 2.5 5.9 3.9 10.0 6.7
Sweet potato
(Ipomoea batatas)
1.5 1.0 2.4 1.6 3.8 2.5 6.0 4.0 11.0 7.1
Pepper, capsicum
(Capsicum annuum)
1.5 1.0 2.2 1.5 3.3 2.2 5.1 3.4 8.6 5.8
Lettuce
(Lactuca sativa)
1.3 0.9 2.1 1.4 3.2 2.1 5.1 3.4 9.0 6.0
Radish
(Raphanus sativus)
1.2 0.8 2.0 1.3 3.1 2.1 5.0 3.4 8.9 5.9
Onion
(Allium cepa)
1.2 0.8 1.8 1.2 2.8 1.8 4.3 2.9 7.4 5.0
Bean
(Phaseolus vulgaris)
1.0 0.7 1.5 1.0 2.3 1.5 3.6 2.4 6.3 2.4
Turnip
(Brassica rapa)
0.9 0.6 2.0 1.3 3.7 2.5 6.5 4.3 12.0 8.0
Carrot
(Daucus carota)
1.0 0.7 1.7 1.1 2.8 1.9 4.6 3.0 8.1 5.4
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