Properties of Saline Range Soils of the Rio Grande Plain

Fanning, Carl D.; Thompson, Charles Manfred; Issacs, Dean

doi:10.2307/3895595

Cited by 8 publications

(5 citation statements)

References 1 publication

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“…Sodium chloride is the dominant salt in the saline soils of southern Texas and the electrical conductivity in the upper 30 cm of these soils ranges from 6.9 to 12.6 mmhos/cm (4.4 to 8. I g/l) (Fanning et al 1965;Everitt et al 1982). Germination in saline soil is influenced not only by direct ion effects, but also by osmotic interference (Uhvits 1946).…”

Section: Germinationmentioning

confidence: 99%

Germination of Texas Persimmon Seed

Everitt¹

1984

Journal of Range Management

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Seed of Texas persimmon germinated in excess of 90% at constant temperatures from 20 to 30" C, and in an alternating temperature regime of 20-300 C. Seeds germinated equally well in light and dark. No seed dormancy mechanisms were observed, and viability was not reduced after storage at room conditions for 2 years. Germination percentages of seeds collected from 2 contrasting range sites did not differ. Germination did not differ over a broad range of pH values (4 to 1 I), but radicle elongation was inhibited at pH 11. Germination and radicle length were sensitive to osmotic potentials of 0.2 MPa or more, and no seed germinated at 1.2 MPa. Germination was restricted in a 5 g/l NaCl solution and nearly ceased at 10 g/l NaCI. Radicle length was more sensitive to NaCl solutions than was germination. Ion toxicity of salt solutions appeared to be more detrimental to germination and radicle growth than the osmotic potential of salt solutions. Seeds were not dependent on soil cover for seedling establishment, but the highest emergence occurred when seeds were covered with 1 cm of soil. Percent of germination was not reduced by passage through the digestive tracts of coyotes.

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Section: Germinationmentioning

confidence: 99%

Germination of Texas Persimmon Seed

Everitt¹

1984

Journal of Range Management

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“…Electrical conductivity of these soils exceeds 4 dS m-' in the surface 25 cm and 12 dS m-1 in the 25 to 50 cm depth (Fanning et al 1965). Topography is gently rolling with less than 3% slope.…”

mentioning

confidence: 94%

Comparative Chemical Composition of Armed Saltbush and Fourwing Saltbush

Garza¹,

Fulbright²

1988

Journal of Range Management

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“…The saline soils of the Rio Grande Plains are considered to be droughty due to high salt content, low rainfall, and high evaporation. Fanning et al (1965) point out that the high salt concentration, particularly with increasing depth, limits not only the species present but also herbage production. Some species can tolerate salt concentration in the surface soil but few will root into the subsoil.…”

Section: Discussionmentioning

confidence: 97%

“…All horizons of the Montell series have been described as strongly calcareous and possessing blocky structure. The A horizon has an exchangeable sodium concentration above 25% and the AC horizon in excess of 30% (Fanning et al, 1965).…”

Section: Study Area and Methodsmentioning

confidence: 99%