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以‘翠冠’梨树苗为试验材料,采用微波消解提取灰分结合等离子发射光谱仪测定法,研究硼(B)添加对梨不同部位B分布及对P、K、Ca、Mg、Fe、Zn、Mn和Cu8种元素吸收分配的影响。结果表明:‘翠冠’梨不同器官B浓度大小为叶片>根系>茎,随营养液B浓度增加,‘翠冠’梨根、茎、叶B浓度呈增加的趋势,营养液B浓度越高根系B浓度增加幅度越大,不同处理间差异显著。高B处理明显影响‘翠冠’梨苗8种矿质元素在根、茎、叶中的分配。根中P、K、Mg、Zn、Mn和Cu浓度随营养液B浓度增加而提高,Ca和Fe浓度随营养液B浓度增加而降低,而转运系数均随B浓度增加而增大;茎中P、Ca、Mg、Zn、Mn和Cu浓度随营养液B浓度增加而提高,K和Fe随营养液B浓度增加而降低,P和K转运系数随B浓度增加而增大,Fe无明显变化,其他元素的转运系数随营养液B浓度增加而降低;叶中P、K、Mn和Cu浓度随营养液B浓度增加而提高,Fe和Zn则相反,而Ca和Mg则先升高后降低,除Zn与Mn外,其他元素的转运系数随营养液B浓度增加而增大。
The experiment was conducted to study the distribution of boron (B) in different parts of pear and its effect on the contents of P, K, Ca, Mg, Fe, Zn and Mn in pear by using the microwave digestion and extraction of ash and the determination of plasma emission spectrometry And Cu8 elements absorption and distribution. The results showed that the concentration of B in different parts of Cuiguan pear was leaf> root> stem. With the increase of nutrient solution B, the concentration of B in root, stem and leaf of Cuiguan showed a tendency of increasing. Department of B concentration increases the greater the difference between different treatments significantly. High B treatment significantly affected the distribution of 8 mineral elements in ’Cui Guan’ pear seedlings in roots, stems and leaves. The concentrations of P, K, Mg, Zn, Mn and Cu in root increased with the increase of nutrient solution B. The concentration of Ca and Fe decreased with the increase of nutrient solution B. The transport coefficient increased with the increase of B concentration. The concentrations of P, Ca, Mg, Zn, Mn and Cu increased with the increase of nutrient solution B. K and Fe decreased with the increase of nutrient solution B. The transport coefficients of P and K increased with the increase of B concentration. Fe did not change significantly , And the transport coefficients of other elements decreased with the increase of nutrient solution B. The concentrations of P, K, Mn and Cu in leaves increased with the increase of nutrient solution B concentration, but Fe and Zn were reversed while that of Ca and Mg increased first and then decreased In addition to Zn and Mn, the transport coefficients of other elements increased with the increase of nutrient solution B concentration.