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A STUDY ON SALT-TOLERANCE OF SEVERAL BLUEGRASSE$ SEEDS DURING GERMINATION

Niu Julan Zhang Degang (Gansu Agricultural University,Lanzhou,730070)  
The influence of NaCl and Na_2SO_4 which are main salts in the saline soils in Gansu on the germination of 4 bluegrasses was studied in this paper.The results indicated that NaCl harmed 4 bluegrasses slight strongly than Na_2SO_4 during germination,the seed relative germination rate and length of radicle were negtively correlated with salt concentration significantly.The order of saltcolerance of 4 bluegrasses seeds during germination was'Merit'Kentucky bluegrass'Sabre'Rough bluegrass'Ikone'Kentucky bluegrass'Wabash'kentucky bluegrass.
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