摘要
将NaCl和Na2CO3+NaHCO3两种盐分别设置4个浓度梯度,以玉米发芽率、分布频率、幼苗期的苗高、主胚根长及相对盐害率为指标,研究两类盐对玉米萌发和苗期胁迫的生理差异。结果表明,两种盐胁迫处理的发芽率、苗高、主胚根长的平均值均随浓度增加而降低,Na2CO3+NaHCO3处理比NaCl处理胁迫盐害率严重。各品种耐NaCl和Na2CO3+NaHCO3能力并不一致。
Germination rate, distribution frequency, plant height, roots length and relative salt tolerance of maize were investigated under four concentration of NaCl and Na2 CO3 ＋ NaHCO3. The results showed that germination rate, plant height, root length reduced with the increase of concentration under the two kinds of salt stress. The treatment of Na2CO3 ＋ NaHCO3 had more serious influence than the treatment of NaCl. The tolerance of maize between NaCl and Na2CO3 ＋ NaHCO3 stress were different.
出处
《作物杂志》
CAS
CSCD
北大核心
2009年第4期52-56,共5页
Crops
