摘要
采用营养液培养的方法,对水稻23个品种、大豆14个品种和苜蓿12个品种进行了耐铝性筛选试验,并对各品种的耐铝性进行了评价和对各个品种根部和株高生长状况进行了比较,得出耐铝性和铝敏感性品种。结果表明,耐铝基因型具有植株相对生物量较高、种子根相对伸长率、苏木精着色程度较低的共同特点。种子根相对伸长率、苏木精染色指数与植株的耐铝性具有显著的相关性。铝胁迫下耐铝性不同的典型植物的根系形态具有明显差异,耐铝基因型明显优于铝敏感基因型。
Using nutrition training methods,A1-tolerance test of 23 rice varieties, 14 soybean varieties and 12 alfalfa varieties were did to evaluate the various species of Al-toleranee and eontraste their root growth and plant height.The results showed that the Al-tolerant lines had lower hexnatoxylin dye index,higher RSRL and higher relative biomass in comparison with Al-sensitive lines.There were significant correlations between the relative seminal root length （RSRL）, hematoxylin dye index, aril the Al-tolerance of the plant. There were significant difference of morphological and anatomieal eharaeteristies different patterns typical of the root system, Al-tolerant genotypes were distinctly better than Al-sensitive ones.
出处
《现代农业科技》
2017年第17期34-38,40,共6页
Modern Agricultural Science and Technology
基金
浙江省自然科学基金项目(Y15C150004)
浙江省教育厅一般项目(Y200804870)
关键词
水稻
苜蓿
大豆
品种
耐铝性评价
根系形态
rice
alfalfa
soybean
varieties
Al-tolerance estimation
root morphological
