Effects of Salt Stress on Seeds Germination of Coreopsis tinctoria.

doi:10.11924/j.issn.1000-6850.2014-1613

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (34): 41-45.doi: 10.11924/j.issn.1000-6850.2014-1613

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Effects of Salt Stress on Seeds Germination of Coreopsis tinctoria.

Yeergen·Xiayimulati¹, Qin Yong^1,2, Xu Hongjun¹

(¹Departmen of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052;
²Institute of Environment Controlled Agriculture, Xinjiang Agricultural University, Urumqi 830052)

Received:2014-06-06 Revised:2014-11-28 Accepted:2014-09-30 Online:2015-03-10 Published:2015-03-10

Abstract

Abstract: The effects of NaCl, Na₂SO₄and 2:7:1 (NaCl+Na₂SO₄+Na₂CO₃) under different concentration on the seeds germination of Coreopsis tinctoria was studied. The results showed that the germination index, germination potential and germination rate of Coreopsis tinctoria seeds decreased obviously under the stress of test salts; moreover, the inhibition was strengthened with the increase in the concentrations of salts stress. Compared the inhibition showed that mixed salt>NaCl>Na₂SO₄. The suitable salt concentration for Coreopsis tinctoria seed germination was 0.78% NaCl, 0.84% Na₂SO₄and 0.15% mixed salt; the half lethal concentration and fatal concentration of NaCl, Na₂SO₄ and mixed salt was respectively 1.34%, 1.41%, 0.89% and 2.23%, 2.31%, 2.08%. Research also showed that after relieve the salt stress, seeds of Coreopsis tinctoria still had high germination rate.

许红军. Effects of Salt Stress on Seeds Germination of Coreopsis tinctoria.[J]. Chinese Agricultural Science Bulletin, 2014, 30(34): 41-45.

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Effects of Salt Stress on Seeds Germination of Coreopsis tinctoria.

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