›› 2013, Vol. 25 ›› Issue (6): 0-1278.

• 园艺科学 •    

不同LED光源对设施越冬辣椒光合特性和叶绿素荧光参数的影响

吴根良1,郑积荣1,李许可2
  

  1. 1杭州市农业科学研究院,浙江 杭州 310024;2杭州汉徽光电科技有限公司,浙江 杭州 310051
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-11-25 发布日期:2013-11-25

Effect of differernt LED light quality treatment on photosynthesis and chlorophyll fluorescence parameters of overwintering pepper in greenhouse

WU Gen\|liang;ZHENG Ji\|rong;LI Xyu\|ke   

  1. 1Hangzhou Academy of Agricultural Sciences,Hangzhou 310024,China;2 Hangzhou Hanhui Optoelectronics Technology Co., Ltd,Hangzhou 310051,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-11-25 Published:2013-11-25

摘要: 采用不同LED光源照射植株,研究不同光质、不同补光时间对设施越冬辣椒光合参数及叶绿素荧光参数的影响。结果表明:不同LED光源、不同补光时间对辣椒叶片的光合速率、气孔导度、蒸腾速率、胞间CO2浓度以及叶绿素荧光参数Fv′/Fm′,qN,ΦPSⅡ,ETR,qP均有显著的影响。采用较短补光时间(6 h和8 h),RB光和B光均能显著提高辣椒叶片的光合速率、胞间CO2浓度和ΦPSⅡ,ETR,而且补光6 h的效果好于8 h;采用较长补光时间(10 h)时,RB光能显著提高Fv′/Fm′,而W光及RB73光却耗掉更多的热能。RB83处理6 h和8 h能显著提高辣椒的光合作用,可作为设施辣椒越冬生产的补光光源。

关键词: 辣椒, LED, 光合作用, 叶绿素荧光参数

Abstract: The effect of differernt LED light quality treatment on photosynthesis and chlorophyll fluorescence parameters of overwintering pepper in greenhouse was studied.The results showed that the photosynthesis rate, stomatal conductance, transpiration rate, intercellular CO2 concentration and Fv′/Fm′, qN, ΦPSII, ETR, qP had significant impact under differernt LED light quality and differernt supplemental time on pepper leaves. Treated with short time (6 hours and 8 hours), the photosynthetic rate, intercellular CO2 concentration, ΦPSII and ETR of pepper were significantly improved under RB light and B light, and supplementary lighting for 6 hours was better than 8 hours. Treated with long time (10 hours), Fv′/Fm was significantly improved under RB light, but more heat was disspated under W light and RB73 light. Treatment under RB83 light for 6 h and 8 h can significantly improve the photosynthesis of pepper, therefore the two treatments can be used as supplemental light in greenhouse production of overwintering pepper.

Key words: pepper, LED, photosynthesis, chlorophyll fluorescence parameters