氟化氢诱导下4种枣品种的抗性比较及其与钙含量的相关性分析

Comparative Analysis of Resistance and Calcium Content of Four Jujube Cultivars Induced by Hydrogen Fluoride

以壶瓶枣、郎枣、木枣和赞皇大枣不同枣品种的枣果和枣叶为试验材料,比较其对氟化氢的抗性,采用火焰原子吸收光谱法测定枣果和枣叶的钙含量,研究氟化氢诱导下不同枣品种的发病率和钙含量之间的相关性。结果表明,4个枣品种对氟化氢的抗性差异明显,抗性大小依次为赞皇大枣>木枣>郎枣>壶瓶枣;3个处理下的发病率差异明显,发病率大小依次为诱导组>防治组>对照组,说明喷钙可以有效减轻氟化氢伤害。不同品种枣果和枣叶的钙含量具有显著性差异,其中,赞皇大枣和木枣的枣果和枣叶钙含量均高于其他品种;不同品种枣叶钙含量均高于枣果。不同品种枣果和枣叶钙含量与发病率均呈负相关,相关系数分别为-0.783和-0.588,即钙含量越高,发病率越低。研究结果可为植物防止氟化氢伤害提供理论参考。

Four jujube cultivars ,＂Hupingzao＂, ＂Langzao＂, ＂Muzao＂ and ＂Zanhuangdazao＂, were compared to test their resistance tohydrogen fluoride. And calcium content of jujube fruits and leaves were tested by using Flame Atomic Absorption Spectrometry toinvestigate the correlation between the fruits incidence and calcium content of different jujube cultivars induced by hydrogen fluoride. Theresults showed that the resistance of four jujube varieties to hydrogen fluoride was different, the trend of resistance was Zanhuangdazao〉Muzao〉Langzao〉Hupingzao. The fruits incidence under three treatments also had significant difference, the trend was Inductiongroup〉Prevention group〉Control group, which indicated the spraying calcium could reduce hydrogen fluoride damage effectively. Thecalcium content of fruits and leaves in different varieties had significant difference, the content of calcium in fruits and leaves ofZanhuangdazao and Muzao was higher than the other varieties. And the calcium content in jujube leaves of different varieties was higherthan that of in fruits. There wasa significant negative correlation between the calcium content of fruit and leaves and the incidence indifferent varieties（r=-0.783; r=-0.588） , this showed the higher the calcium content was, the lower the incidence was. This study willprovidea basis for plant prevention and treatment under hydrogen fluoride injury.