염화물계 제설제의 밀, 보리, 시금치 생육에 미치는 영향
Effect of Chloride-deicers on Growth of Wheat, Barley and Spinach
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BACKGROUND: Deicers such as calcium chloride(CaCl2) and sodium chloride (NaCl) in Korea have beencommonly used to reduce traffic accidents as well asinjuries. However there have been adverse effects ofdeciders such as pollution of water and soil, and reducedproductivity of agriculture as well as forest. This studyaimed to investigate biological effects of the deicers againstwheat, barley, and spinach. METHODS AND RESULTS: The germination of testedcrop seeds exposed to chloride-deicers, CaCl2 and NaCl wassignificantly reduced at over 3% concentration ofchloride-deicers compared to the control. In sprayingdeicers to the seedlings of the crops, there was no symptomsuch as inhibition of growth rate or leaf elongation. However the germination of tested crop seeds was affectedat 2% concentration of deicers when they were exposedcontinuously to deicers in soils. The growth of the shootagainst CaCl2 and NaCl treatments was very similar inwheat and barley whereas the shoot of spinach was the mostsusceptible. Based on these results, the sensitivity of thecrops to the tested deicers was as follows: NaCl > CaCl2 >mixture (CaCl2 + NaCl). The length of shoots and roots ofthe seedlings grown in 1% treated soil was decreased. Thebiomass of all the seedlings decreased 1.5 to 4 times at 1%. CONCLUSION: These results indicate that the effects ofsalt deicers by inputting into soil against growing testedcrops are more severe in germination and growth inhibitionas well as biomass decrease.
Abstract
BACKGROUND: Deicers such as calcium chloride(CaCl2) and sodium chloride (NaCl) in Korea have beencommonly used to reduce traffic accidents as well asinjuries. However there have been adverse effects ofdeciders such as pollution of water and soil, and reducedproductivity of agriculture as well as forest. This studyaimed to investigate biological effects of the deicers againstwheat, barley, and spinach. METHODS AND RESULTS: The germination of testedcrop seeds exposed to chloride-deicers, CaCl2 and NaCl wassignificantly reduced at over 3% concentration ofchloride-deicers compared to the control. In sprayingdeicers to the seedlings of the crops, there was no symptomsuch as inhibition of growth rate or leaf elongation. However the germination of tested crop seeds was affectedat 2% concentration of deicers when they were exposedcontinuously to deicers in soils. The growth of the shootagainst CaCl2 and NaCl treatments was very similar inwheat and barley whereas the shoot of spinach was the mostsusceptible. Based on these results, the sensitivity of thecrops to the tested deicers was as follows: NaCl > CaCl2 >mixture (CaCl2 + NaCl). The length of shoots and roots ofthe seedlings grown in 1% treated soil was decreased. Thebiomass of all the seedlings decreased 1.5 to 4 times at 1%. CONCLUSION: These results indicate that the effects ofsalt deicers by inputting into soil against growing testedcrops are more severe in germination and growth inhibitionas well as biomass decrease.
참고문헌 (16)
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