利用小容器溶液培养法对耐铝性鉴定条件和52份普通养麦栽培品种资源的耐铝性进行了研究。结果发现普通养麦耐铝性鉴定的适宜条件为发芽种子于500μmol/L A1C13溶液(pH4.5)处理3d,以发芽种子在这三天内的根伸长量衡量耐铝性程度。在该处理条件下,普通养麦不同品种间的耐铝性有显著差异。其中,陕西大红花甜养品种、日本大粒养、织金红花甜养的耐铝毒胁迫能力最强,值得在养麦耐铝性育种和耐铝机制研究中利用。
The estimating system of common buckwheat A1^3+ tolerance and the A1^3+ tolerance of 52 common buckwheat accessions were studied by means of test tube culture method. The results showed that the effective method of the A1^3+ -tolerance identification for common buckwheat are to treat sprouting seeds three days in the 500 μmol/L A1C13 solution(pH4.5) at 25 ℃ and to use the seed root growth length in the three days for evaluating the degree of A1^3+ tolerance. The results of identification of AV^+ -resistance by this way showed that there are great variations of A1^3+ tolerance among the different common buckwheat accessions. Among them,some accessions such as Dahonghua from Shaanxi,Daliqiao from Japan, and Honghuaqiao from Guizhou have much higher A1^3+ tolerance than others, which can be used for studies on the buckwheat breeding and the mechanism of the buckwheat A1^3+ tolerance.