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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (33): 166-171.doi: 10.11924/j.issn.1000-6850.casb15050038

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Seed Emergence Study of Three Salt-tolerant Plant Species in Saline-alkali Soil

  

  • Received:2015-05-07 Revised:2015-10-18 Accepted:2015-07-24 Online:2015-11-26 Published:2015-11-26

Abstract: The influence of different grass seed varieties (lyme grass, sweet clover and alfalfa), soils (pH 10.03, 9.36, 8.68, 8.12 and EC 2.02, 1.237, 0.962, 0.454 mS/cm), sowing depths (1, 3 cm) and seed treatments (suncure and soaking treatment and untreated) on seed emergence time and rate was studied by nursery site emergence test. The results showed that lyme grass had the best saline-alkaline resistance and sweet clover had the worst; the increase of pH and EC could cause the increase of seed emergence time and the reduce of seed emergence rate (pH>8.68 and EC>0.962 mS/cm); compared with the sowing depth of 3 cm, the sowing depth of 1 cm could significantly reduce seed emergence time and increase seed emergence rate; sun-cure and soaking treatment could significantly reduce seed emergence time and increase seed emergence rate, which could help seed emergence. The experiment also showed that shorter emergence time could benefit higher emergence rate in saline-alkali soil.