标题:
硝酸钙胁迫对黄花菜一些生理指标的影响Effects of Ca(NO3)2 Stress on Some Physiological Indicators of the Daylily
作者:
李艳清, 刘冲, 韩志平, 张海霞
关键字:
黄花菜, Ca(NO3)2胁迫, 氧化伤害, 渗透调节Daylily, Ca(NO3)2 Stress, Oxidative Damage, Osmotic Adjustment
期刊名称:
《Hans Journal of Agricultural Sciences》, Vol.6 No.5, 2016-10-21
摘要:
本文以大同黄花菜为材料，研究了不同浓度Ca(NO3)2胁迫对营养液栽培黄花菜一些生理指标的影响。结果表明，随Ca(NO3)2处理浓度升高，叶片中丙二醛含量逐渐升高，脯氨酸含量显著增加；可溶性糖、可溶性蛋白、抗坏血酸含量表现“升高–降低”的规律，在100 mmol/L Ca(NO3)2胁迫下达到最大值。说明Ca(NO3)2胁迫浓度越大，对黄花菜植株的过氧化伤害也越大，但黄花菜能够通过大量积累脯氨酸、抗坏血酸等有机渗透调节和抗氧化物质在一定程度上适应盐胁迫。
With Datong Daylily as material, the paper studied the effects of different concentrations of Ca(NO3)2 on some physiological indicators of daylily hydroponically. The results showed that with increasing Ca(NO3)2 concentrations, the content of MDA in leaves increased gradually, and proline content increased significantly. The contents of soluble sugar, soluble protein and ascorbic acid showed the law of “increase-decrease”, and reached the maximum value at 100 mmol/L Ca(NO3)2 stress. The research illustrated that the greater Ca(NO3)2 stress concentration, the more serious the oxidative damage to the daylily plants, but daylily can partly adapt to Ca(NO3)2 stress through the accumulation of organic osmotic adjustment substance, such as proline, and antioxidative substance, such as ascorbic acid.