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The effect of salts on certain physiological characteristics of seeds and sprouts of Sophora japonica



The effect of salts on certain physiological characteristics of seeds and sprouts of Sophora japonica



Izvest Akad Nauk Azerbaidzhansk Ssr Ser Biol I Med Nauk 12: 3-15



In laboratory experiments, Sophora japonica seeds were germinated in 0.01-0.3_N NaCl, Na2SO4, Na2COq, and water, and then grown in water cultures with and without salting. When the salt concentration was high, the seeds did not swell as much and the sprouts lagged in growth and development, while there was an increase in the content of bound water (especially when NaCl was used), in the rate of absorption of the ions Cl- and especially SO42-, and in the respiration rate of young sprouts. Increasing the salt concentration was found to decrease the germination percentage. A 0.2[image] salt solution was found most toxic for sprouting. The salts fall into the following order according to their negative effect on sprouts: Na2CO3 >NaCl > Na2SO4. The highest concentrations tolerated by very young sprouts from hardened seeds were 0.1 [image] Na2SO4, 0.05 [image]NaCl, and 0.1 [image] Na2CO3.

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