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[目的]筛选出耐铝性较强的荞麦资源。[方法]用水培法对25份荞麦资源的耐铝性进行研究。以发芽的荞麦种子在3d内的根伸长量衡量耐铝性程度。[结果]低浓度(500μmol/L以下)的AlCl3处理对荞麦根系的生长具有明显的促进作用,而高浓度(1000μmol/L)的AlCl3处理则会抑制荞麦根系的生长。荞麦基因型间的耐铝性具有明显差异。[结论]在所选取的25份荞麦材料中,L2081和T442的耐铝胁迫能力最强,值得在荞麦耐铝性育种和耐铝机制的研究中开发利用。
[Objective] The research aimed to screen the buckwheat resources with strong aluminum tolerance. [Method] The aluminum tolerance of 25 buckwheat resources was studied by hydroponics. Root elongation of germinated buckwheat seeds is measured in terms of aluminum tolerance. [Result] AlCl3 treatment at low concentration (500μmol / L) could significantly promote the growth of buckwheat roots, whereas AlCl3 treatment at high concentration (1000μmol / L) could inhibit the growth of buckwheat roots. There was a significant difference in the aluminum resistance between buckwheat genotypes. [Conclusion] Among the 25 buckwheat materials selected, L2081 and T442 were the most resistant to aluminum stress and deserved to be exploited in the research of aluminum tolerance breeding and aluminum tolerance mechanism in buckwheat.