摘要
花生发芽期、苗期和成熟期的根系性状研究表明，铝胁迫对花生根系的生长发育有较大的影响，Ａｌ３＋含量与胚根和胚轴的伸长呈显著负相关，不同基因型根系受铝毒危害有明显差异，耐铝基因型可能在根际形成ｐＨ障碍。早期直接测定花生根系性状指标，有助于评价和筛选耐铝毒材料。
The root system of peanut under aluminum stress were investigated in this experiment. The results showed that the Al 3+ concentration had significant and negative correlation with elongation of root and hypocotyl during germination period. In Al-toxic test of both solution and pot culture, root system were reduced,the differences among genotypes were obvious. The tolerant genotypes to Al may form a plant-induced pH barrier in the rhizosphere.It is suggested that peanut morphological indexes of root system under Al stress were measured in early were important to evaluate and screen Al tolerance.
出处
《花生科技》
北大核心
1998年第4期1-4,23,共5页
基金
国家"九五"科技攻关项目
关键词
花生
根系
铝胁迫
指标
Peanut
root system
Al stress
index
