ZHAO Xun,LI Yin-gang,LIU Xin-hong.Study on Light Response Characteristics of Chlorophyll Fluorescence Comparison in Seedlings of Different Provenances of Styrax tonkinensis[J].Northern Horticulture,2013,37(01):46-49.
不同种源白花树苗期荧光光响应特性比较研究
- Title:
- Study on Light Response Characteristics of Chlorophyll Fluorescence Comparison in Seedlings of Different Provenances of Styrax tonkinensis
- 文章编号:
- 1001-0009（2013）01-0046-04
- Keywords:
- chlorophyll fluorescence; light response curves; Styrax tonkinesis; provenance; domestication
- 分类号:
- S 792
- 文献标志码:
- A
- 摘要:
- 以6个种源白花树为试材，运用便携式光合气体分析系统（LI-6400）对不同种源白花树的荧光光曲线生理特性进行测定和对比分析，研究了不同种源白花树苗期荧光的光响应特性。结果表明：各种源白花树PSⅡ实际光化学效率（PhiPS2）、光化学猝灭系数（qP）、PSⅡ有效光化学效率（Fv′/Fm′）的光响应曲线整体上均随光照强度的增加而下降；而非光化学猝灭系数（NPQ）、光化学速率（PCR）和电子传递速率（ETR）则与其相反。除福建永安种源外，其它种源在PhiPS2、 Fv′/Fm′、qP、ETR、PCR等参数上均没有呈现明显差异。
- Abstract:
- Taking six different provenaces of Styvax tonkinensis as materials,the light curve of chlorophyll fluorescence of Styrax tonkinensis were measured with LI-6400 portable photosynthesis system and comparatively analyzed,for comparing the light response characteristics of chlorophyll fluorescence in seedlings of different provenances Styrax tonkinensis.The results showed that as the illumination intensity increased，photosynthetic responses curves of actual photochemical efficiency(PhiPS1I),Photochemical quench(qP)，and Photochemical efficiency in the light(Fv′/Fm′) dropped，while curves of Non-photochemical quench(NPQ),Photochemical rate(PCR),Electronic transfer rate(ETR) ascended.There were non-obviously differences in PhiPS2，Fv′/Fm′，qP，ETR and PCR,of these provenances except for ‘Yong’an of ‘Fujian’.
参考文献/References:
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备注/Memo
第一作者简介：赵勋（1975-），男，硕士，工程师，现主要从事园林植物生理生态研究工作。E-mail：xyzfu@126.com.