Ca^(2+)对蕃茄幼苗盐害效应的降低作用

REDUCING ACTION OF Ca^(2+) TO SALT DESTROY EFFECTION ON TOMATO SEEDLING

砂基培养的蕃茄幼苗 ,用含 10 0mmolL-1NaCl及不同浓度的CaCl2 的Hoagland培养液分别处理 .实验结果表明 ,10 0mmolL-NaCl溶液处理的蕃茄幼苗质膜透性增大 .生长缓慢 ,植株干重降低 ,在 10 0mmolL-1的NaCl溶液中加入不同浓度的CaCl2 后 ,上述盐害效应均呈下降趋势 .Na+ /Ca2 + 比为 10时 。

The experiment deals with on tomato seedling with 100m moL L -1 Nacl and cultivation liquid which contains CaCl 2 respectively. The result shows that the cell memlrance permeate nature increases, the growth slows down, and the dry weight reduces; The salt effection tends to reduce of the CaCl 2 was added to 100m moL L -1 NaCl; When the proportion of Na +/Ca 2+ is 10, the reduing action to salt effection is biggest.