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Effects of Salt Stress on Seed Germination of Different Spinach Varieties

WANG Jun-wei,WEI You-ying*,QIU Hong,WEI Bing-pei (College of Horticulture Science and Engineering,Shandong Agricultural University,Taian 271018,China)  
6 representative spinach cultivars(8#、23#、27#、39#、48#、53#) were used in this experiment.The germination tendency,germination percentage,germination index,vigor index and fresh weight were tested to determine the effects of salt stress at the concentration 0,0.25%,0.50%,0.75%,1.00%,1.25%,1.50% and 2.00%.The results indicated that,under the salt stress,the indices of germination tendency and percentage were waveform and the others first rose and then droped with the increasing of salinity.At 0.5%,48# was superior in each index.The salt tolerance of 48# was the best among the 6 species in every test.
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