Puccinellia festucaeformis (Host) Parl.: Germinazione e crescita iniziale in funzione della salinità del substrato

Onnis, A; Pelosini, Fiorenza; Stefani, A.

doi:10.1080/11263508109428000

Cited by 4 publications

(1 citation statement)

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“…Several studies have compared the effects of chloride and sulfate salts on different plant species to determine if our knowledge of the effects of NaCl on plants can be (Onnis et al, 1981;Bal & Chattopadhyay, 1985;Romo & Haferkamp, 1987;Egan et al, 1997), but the results have been too variable to formulate a general answer this question (Curtin et al, 1993). Egan et al (1997) tested the effects of sodium chloride, potassium chloride, sodium sulfate, and potassium sulfate on Atriplex prostrata seed germination and early growth and found results similar to those of the present study of A. acanthocarpa.…”

Section: Discussionmentioning

confidence: 99%

How Salts Of Sodium, Potassium, And Sulfate Affect The Germination And Early Growth Of Atriplex Acanthocarpa (Chenopodiaceae)

Gaylord

Egan

Tasks for Vegetation Science

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Atriplex acanthocarpa is a desert shrub that grows in soils containing many different types of salts. The effects of two sodium and two potassium salts on the germination and early growth of Atriplex acanthocarpa (Torr.) Wats. (armed saltbush) were investigated. Seeds were germinated in petri dishes with solutions of 0, 85, 170, and 340 mM NaCl, KCl, Na 2 SO 4 , and K 2 SO 4 in an incubator with 16 hour days and 8 hour nights with a constant temperature of 24ºC. Seeds were allowed to germinate for 12 days. After this time seeds were rinsed of their solutions and allowed to germinate in distilled water for 12 more days to test for specific ion toxicity. Germination and shoot growth were inhibited primarily by salt concentration as opposed to salt type. Recovery germination of rinsed, ungerminated seeds was high indicating that inhibition of seed germination was due to an osmotic affect as opposed to a specific ion affect. In contrast, the congener Atriplex prostrata, which native to oceanic shores, may demonstrate specific ion toxicity to salts other than sodium chloride.

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