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为了研究盐胁迫下番茄幼苗对赤霉素处理的响应,本试验对不同盐胁迫浓度(0 mmol/L,50 mmol/L,160 mmol/L)条件下长至两叶一心的番茄幼苗叶片进行不同浓度的赤霉素(0 mg/L,20 mg/L,80 mg/L,150 mg/L)喷施处理,对其叶片可溶性糖、可溶性蛋白质、叶绿素含量以及干物重进行测定并进行分析。结果表明,番茄中可溶性糖含量、可溶性蛋白含量随着盐胁迫浓度的增加而增加,施加赤霉素后,可溶性糖含量的上升的幅度明显变大;盐胁迫条件下,番茄叶片干物重下降,且盐浓度越高干物质下降幅度越大,施加赤霉素后,干物重下降幅度减缓;随着盐胁迫浓度增加,番茄叶片的叶绿素含量降低,且浓度越高叶绿素含量下降趋势越明显,赤霉素的施加同样使叶绿素含量降低。以上结果为研究盐胁迫下番茄幼苗对赤霉素处理的响应提供了实验依据。
In order to study the response of tomato seedlings to gibberellin (GA3) treatment under salt stress, we conducted tomato seedling leaves as long as two leaves under different salt stress concentrations (0 mmol / L, 50 mmol / L, 160 mmol / L) The soluble sugar, soluble protein, chlorophyll content and dry matter weight were measured and analyzed in different concentrations of gibberellin (0 mg / L, 20 mg / L, 80 mg / L, 150 mg / L) . The results showed that the content of soluble sugar and soluble protein in tomato increased with the increase of salt stress. The increase of soluble sugar content obviously increased when gibberellic acid was applied. Under salt stress, the dry weight of tomato leaf decreased, The higher the salt concentration was, the greater the decrease of dry matter was, and the decrease of dry matter weight was slowed down when gibberellic acid was applied. With the increase of salt stress concentration, the chlorophyll content of tomato leaves decreased, and the chlorophyll content decreased with the increase of salt concentration. The application ofmycin also reduced the chlorophyll content. The above results provide experimental evidence for studying the response of tomato seedlings to gibberellin treatment under salt stress.