CAJ | 학술논문

以 Cu2+0.00μmol/L、0.31μmol/L、2.00μmol/L、5. 00μmol/L、10.00μmol/L、25.00μmol/L、50.00μmol/L、100 .00μmol/L、150 .00μmol /L、300.00μmol/L等10个不同铜浓度的营养液为基质,培养甜菜幼苗,研究铜对甜菜生长影响,目的明确铜的营养作用和毒害性. 试验结果表明:( 1)幼苗根、叶鲜、干重受Cu 2+浓度影响很大,浓度越大根、叶的鲜、干重越小,幼苗受到的危害越大;( 2 )铜元素的含量不同甜菜品种间存在差异,但趋势一致;(3) 根吸收铜能力大于叶;4、随着Cu2+浓度增加,叶片颜色由绿逐渐变黄.
이 Cu2+0.00μmol/L、0.31μmol/L、2.00μmol/L、5. 00μmol/L、10.00μmol/L、25.00μmol/L、50.00μmol/L、100 .00μmol/L、150 .00μmol /L、300.00μmol/L등10개불동동농도적영양액위기질,배양첨채유묘,연구동대첨채생장영향,목적명학동적영양작용화독해성. 시험결과표명:( 1)유묘근、협선、간중수Cu 2+농도영향흔대,농도월대근、 협적선、간중월소,유묘수도적위해월대;( 2 )동원소적함량불동첨채품충간존재차이,단추세일치;(3) 근흡수동능력대우협;4、수착Cu2+농도증가,협편안색유록축점변황.
In order to study the effects of copper stress on sugar beet ( Beta vulgaris L .) , the trial was treated with 0 .00μmol/L、0 .31μmol/L、2 .00μmol/L、5 .00μmol/L、10 .00μmol/L、25 .00μmol/L、50 .00μmol/L、100.00μmol/L、150.00μmol/L、300.00μmol/L 10 different concentrations Cu 2+in hydroponic culture (1/2 Ho-agland nutrient solution ) .The purpose of copper nutrition effect and toxic had been maked clear in this trial .The experimental results showed that:1 .The weight of dry and fresh seedling were highly affected by the concentra-tion of Cu2+, the greater the concentration, the smaller weight, the greater the damage;2.The content of cop-per in root and leaf between the different sugar beet varieties had lightly different , but the trend were consistent . 3 .The ability of absorption copper in root is greater than the leaves .4 .With the increase of Cu 2+concentration , leaves had gradually turn yellow color from green .