最新刊期
      期 1 ， 2015
      • HAO Jie,RUAN Shaoning,LIN Sizu,ZHANG Tao,XUE Mingyu,DING Hengxian
        Vol. 33, Issue 1, Pages: 10402-010402(2015) DOI: 10.11889/j.1000-3436.2015.rrj.33.010402
        摘要：The effects of ion-implantation on the chlorophyll fluorescence parameters and chlorophyll content in young leaves of Chinese fir（Cunninghamia Lanceolata（Lamb.） Hook） were investigated in this paper by using 50 ke V energy ion beam with different doses of Fe+ and Ti+ implanted into seeds, Chlorophyll fluorescence characteristics and Chlorophyll content of the seedlings were measured, the results showed that the fluorescence value（Fi） and Maximal fluorescence（Fv） were significantly higher in Fe+ implantation as compared with Ti+ implantation, while the Fi and Fv values were not altered by Ti+ treatment compared with the control. Moreover, the values of Fv/Fmax and Fv/Fi in both ion-implantation treatments exhibited an increasing trend, the significance is not obvious, and Fv/Fmax value did not vary significantly. The photoinhibition phenomenon in seedlings was observed as the dose of Fe+ implantation increased, and the qP value decreased, whereas the qN curves were significantly higher than control. A stimulating effect of Ti+ implantation on plants’ photosynthesis was found and the promotion effect reached maximum at D1. Fe+ implantation decreased the chlorophyll content while increased the chlorophyll a/b value, and inhibited the synthesis of chlorophyll. By contrast, a stimulating effect of Ti+ implantation on chlorophyll content was found, which enhanced plants’ photosynthetic capacity.  
        关键词：Chinese fir;Ion implantation;Chlorophyll fluorescence characteristics;Chlorophyll content   
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        发布时间：2022-09-27
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