摘要
[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3 d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(1 000μmol/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 select the buckwheat accessions with higher Al3＋ tolerance.[Method] 25 buckwheat accessions were used as materials,the Al3＋ tolerance were studied by means of solution culture method in this research.The length of root was used to evaluate the degree of Al3＋ tolerance.[Result] The root growth of some buckwheat accessions were significantly promoted under the concentration of 500 μmol/L,while high concentration of Al3＋（1 000 μmol/L） inhibited the buckwheat roots growth.There were great variations of Al3＋ tolerance among the different buckwheat genotypes.[Conclusion] Among the 25 buckwheat genotypes,L2081 and T442 had much higher Al3＋ tolerance than the others,which could be used for researching on the buckwheat breeding and the mechanism of the buckwheat Al3＋ tolerance.
出处
《安徽农业科学》
CAS
北大核心
2011年第5期2608-2610,共3页
Journal of Anhui Agricultural Sciences
基金
贵州省科学技术基金[黔科合J字(2009)2108号]
贵州师范大学博士科研基金项目(2008年)
关键词
荞麦
耐铝性
种子
Buckwheat
Al3＋ tolerance
Seeds
