【摘要】 为了研究文冠果植株在NaCl胁迫下光合特性的响应机制,探讨有利于文冠果扦插苗正常生长的适宜盐浓度,采用美国CID公司生产的CI-340便携式光合测定系统测定不同浓度NaCl胁迫处理下文冠果的光合作用参数。结果表明:低浓度(≤0.4%)NaCl胁迫对文冠果光合作用的影响较小,高浓度(≥0.4%)NaCl胁迫对其光合作用影响较大,当NaCl浓度为0.4%时,有利于文冠果扦插苗的正常生长。更多还原

【Abstract】 In order to study the responding mechanism on photosynthetic characteristics of Xanthoceras sorbifolia Bunge under NaCl stress and investigate the suitable salt concentration of normal growth for Xanthoceras sorbifolia Bunge. The CI- 340 portable photosynthesis systems produced in CID Company,USA was used to measure the photosynthetic parameters of Xanthoceras sorbifolia Bunge under different concentrations NaCl stress. The results showed that the effect on photosynthesis of Xanthoceras sorbifolia Bunge under low concentration NaCl stress( ≤0. 4%) was smaller,but the effect on photosynthesis of Xanthoceras sorbifolia Bunge under high concentration NaCl stress( ≥ 0. 4% 0. 4%) was larger. The suitable salt concentration of normal growth for Xanthoceras sorbifolia Bunge cutting seedling was 0. 4%NaCl concentration.更多还原