摘要
通过玉米发芽和溶液培养试验来研究筛选玉米耐铝酸的直接指标和测定方法。研究表明,不同的玉米基因型之间在耐铝性上存在着很大的差异。在铝胁迫下,玉米幼苗主根明显缩短,并且侧根生长受到抑制。由于根系生长发育不良,导致地上部分茎、叶的生长受阻,造成整个植株的生物量下降,但耐铝玉米基因型下降的幅度比铝敏感基因型小,可以根据这些指标进行基因型的筛选。
The direct method of selecting maize genotypes resisting in Al were studied with sprouting and liquid medium culture method.It was showed that there were a lot difference between the Al-tolerant cultivar and the Al-sensitive cultivar.Under the Al stress,main roots of maize seedlings and lateral roots were obviously inhibited,which reduced the growth of shoots and leaves,but what Al-sensitive cultivar reduced was more than Al-tolerant cultivar did.We can select some maize genotypes with high Al-tolerance according to these.
出处
《玉米科学》
CAS
CSCD
2004年第1期33-35,共3页
Journal of Maize Sciences
