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ARS Home Pacific West Area Riverside, California Agricultural Water Efficiency and Salinity Research Unit Docs Databases





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- Fiber, Grain and Special Crops
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- Boron Tolerance of Crops

Salt Tolerance - Fiber, Grain, Special Crops -
 Common Name
Botanical Name
Threshold dS/m (c)
Slope % per dS/m
Rating (d)Artichoke,Jerusalem (Tabers)
Helianthus tuberosus
0.4
9.6
MSBarley (e)
Hordeum vulgare
8.0
5.0
TBean
Phaseolus vulgaris
1.0
19.0
SBroadbean
Vicia Faba
1.6
9.6
MSCorn (f)
Zea mays
1.7
12.0
MSCotton
Gossypium hirsutum
7.7
5.2
TCowpea
Vigna unguiculata
4.9
12.0
MTFlax
Linum usitatissimum
1.7
12.0
MSGuar
Cyamopsis tetragonoloba
8.8
17.0
TKenaf
Hibiscus cannabinus
8.1
--
MTMillet,foxtail
Setaria italica
--
--
MSOats
Avena sativa
--
--
MT*Peanut
Arachis hypogaea
3.2
29.0
MSRice,paddy
Oryza sativa
3.0 (g)
12.0 (g)
SRye
Secale cereale
11.4
10.8
TSafflower
Carthamus tinctorius
--
--
MTSesame (m)
Sesamum indicum
--
--
SSorghum
Sorghum bicolor
6.8
16.0
MTSoybean
Glycine max
5.0
20.0
MTSugarbeet (h)
Beta vulgaris
7.0
5.9
TSugarcane
Saccharum officinarum
1.7
5.9
MSSunflower
Helianthus annuus
--
--
MS*Triticale
X Triticosecale
6.1
2.5
TWheat
Triticum aestivum
6.0
7.1
MTWheat (semidwarf) (i)
T. aestivum
8.6
3.0
TWheat, Durum
T. turgidum
5.9
3.8
T
 Mass (1990)(a) Salinity Ratings codes
Salinity Ratings refer to the level of salt tolerance: M = moderate; T = tolerant; S = sensitive; MS = moderately sensitive; MT = moderately tolerant Notes:
(a) These data serve only a guideline to relative tolerances among crops. Absolute tolerances vary, depending upon climate, soil conditions, and cultural practices.  (b) Botanical and common names follow the convention of Hortus Third (Liberty Hyde Bailey Hortorium Staff, 1976) where possible.  (c) In gypsiferous soils, plants will tolerate ECe about 2 dS/m higher than indicated.  (d) Ratings with a * are estimates.  (e) Less tolerant during seedling stage, ECe at this stage should not exceed 4 or 5 dS/m.  (f) Grain and forage yields of DeKalb XL-75 grown on an organic muck soil decreased about 26% per dS/m above a threshold of 1.9 dS/m.  (g) Paddy rice is grown under flooded conditions, thus electrical conductivity of the soil water refers to the plants while submerged. Less tolerant during seedling stage.  (h) Sensitive during germination and emergence, ECe should not exceed 3 dS/m.  (i) Data from one cultivar, "Probred".  (j) Average of serveral varieties. Suwannee and Coastal are about 20% more tolerant, and common and Greenfield are about 20% less tolerant than the average.  (k) Average for Boer, Wilman, Sand, and Weeping cultivars. Lehmann seems about 50% more tolerant.  (l) Broadleaf birdsfoot trefoil seems less tolerant than narrowleaf.  (m) Sesame cultivars, Sesaco 7 and 8, may be more tolerant than indicated by the S rating.


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