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以不施用NaCl处理为对照,研究了盆栽试验条件下刈割1次、刈割2次处理及0,0.3,0.6,0.9g/kg4个NaCl胁迫水平(分别以S0、S1、S2和S3表示)对中华枸杞和黑枸杞幼苗生物量、总黄酮及K+和Na+含量的影响。结果表明:不同浓度NaCl胁迫下,刈割2次处理中华枸杞与黑枸杞幼苗总生物量显著增加,分别比刈割1次处理增加0.50~2.33g/盆和0.96~5.20g/盆,且NaCl水平越高,差异越明显;不同刈割措施下,中华枸杞均以S2处理总黄酮含量最高,为9.56~12.8mg/g,黑枸杞在刈割2次和刈割1次时,总黄酮含量分别以S1和S3处理最大,为8.52mg/g,15.8mg/g和9.18mg/g,且刈割2次处理总体有利于中华枸杞和黑枸杞总黄酮的累积;不同刈割措施下,中华枸杞与黑枸杞幼苗K+、Na+含量均以幼叶高于嫩茎,中华枸杞叶、茎中Na+含量以S2处理最高,黑枸杞则以S3处理最高;高浓度NaCl胁迫下(S2与S3处理),枸杞叶中的K+/Na+比值均以中华枸杞小于黑枸杞。
With no NaCl treatment as the control, the effects of 4 treatments of mowing and 0, 0.3, 0.6 and 0.9g / kg of 4 NaCl stress levels (S0, S1, S2 and S3 respectively) Effects of different concentrations of Chinese wolfberry and black lycium barbarum on biomass, total flavonoids and K + and Na + contents. The results showed that the total biomass of Chinese Wolfberry and Black Wolfberry seedlings increased significantly by 0.50 ~ 2.33g / pot and 0.96 ~ 5.20g / pot, respectively, compared with the control The higher the level, the more obvious difference; under different cutting measures, the content of total flavonoids of Chinese wolfberry S2 was the highest, 9.56 ~ 12.8mg / g, black wolfberry in the second cutting and cutting once, the total flavonoid content The treatments with S1 and S3 were the highest, which were 8.52mg / g, 15.8mg / g and 9.18mg / g, respectively, and the two treatments of mowing were beneficial to the accumulation of total flavonoids of Lycium barbarum and Lycium barbarum. Under different cutting methods, The contents of K + and Na + in young leaves of Lycium barbarum and Lycium barbarum were both higher than that of young stems, and the content of Na + in leaves and stems of Cymbidium sinensis was the highest in S2 and the highest in S3 in black Lycium barbarum L. Under high concentration of NaCl stress (S2 and S3) , The wolfberry leaf K + / Na + ratio of Chinese wolfberry are less than black wolfberry.