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金盏菊和万寿菊分属菊科金盏菊属和万寿菊属,为园林常用地被花卉。为研究其耐盐性,采用3种浓度的Na Cl溶液对2种菊花的种子进行盐胁迫处理,并在人工模拟盐环境条件下观察其耐盐性。结果表明,盐胁迫处理会提高菊花幼苗的耐盐性,不同浓度盐胁迫处理耐盐性效果不同;金盏菊以0.6%浓度的盐胁迫处理、万寿菊以0.4%浓度的盐胁迫处理耐盐性最好;金盏菊和万寿菊的耐盐性在形态方面主要表现为根较长、植株较高和茎较粗3个方面,在生理指标方面表现为叶片POD活性比较高,研究结果为利用盐胁迫处理提高菊科植物耐盐性提供了理论依据。
Calendula officinalis and marigold belongs to the Compositae genus and marigold genus, commonly used by the garden flowers. In order to study its salt tolerance, two kinds of chrysanthemum seeds were treated with NaCl solution at three concentrations, and their salt tolerance was observed under artificial simulated salt environment. The results showed that salt stress could improve the salt tolerance of chrysanthemum seedlings. Salt tolerance of different concentrations of salt stress treatment was different. Calendula officinalis was treated with 0.6% salt stress and marigold salt stress with 0.4% salt stress The best of which. The salt tolerance of calendula officinalis and marigold was mainly manifested in the aspects of long root, tall plant and thick stem, and showed the higher POD activity in physiological index. The results were as follows: The use of salt stress treatment to improve the salt tolerance of Compositae provide a theoretical basis.