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›› 2009, Vol. 29 ›› Issue (5): 544-548.doi: 10.7525/j.issn.1673-5102.2009.05.008

• 论文 • 上一篇    下一篇

控释氮肥对紫萼玉簪(Hosta ventricosa)生长和光合特性的影响

王巍1,2;董然2;李晓东1;孙国峰1;张金政1*;姜闯道1   

  1. (1.中国科学院植物研究所,北京100093) (2.吉林农业大学园艺学院,长春130118)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-09-20 发布日期:2009-09-20
  • 通讯作者: 张金政

Effects of Controlled Release Nitrogen Fertilizer on the Growth and Photosynthetic Characteristics of Hosta ventricosa

WANG Wei;DONG Ran;LI Xiao-Dong;SUN Guo-Feng;ZHANG Jin-Zheng*;JIANG Chuang-Dao   

  1. (1.Institute of Botany,the Chinese Academy of Sciences,Beijing100093) (2.Department of Horticulture,Jilin Agricultural University,Changchun130118)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-09-20 Published:2009-09-20
  • Contact: ZHANG Jin-Zheng

摘要: 以紫萼玉簪(Hosta ventricosa)盆栽苗为材料,研究了50%遮荫条件下控释氮肥对玉簪不同生长发育时期生长和光合特性的影响,结果表明:N1处理(4 g控释氮肥)和N2处理(8 g控释氮肥)能够提高或显著提高玉簪不同生长发育时期干物质量;能够显著提高形态建成期叶绿素b(Chlb)含量,抽葶期和开花期叶绿素a(Chla)、Chlb及类胡萝卜素(Car.)含量;且显著提高各生长发育时期净光合速率(Pn)。在抽葶期和开花期,N1处理最大光能转化效率(Fv/Fm)、PSⅡ电子传递量子效率(ΦPSⅡ)、PSⅡ有效光化学量子产量(Fv/Fm)显著高于对照, 在形态建成期和开花期,N2处理Fv/FmΦPSⅡFv/Fm显著高于对照,且抽葶期Fv/Fm显著高于对照。除形态建成期N1处理外,各施氮处理qP在不同时期与对照无显著差异。各施氮处理NPQ在形态建成期与对照无显著差异,而在抽葶期和开花期显著低于对照。

关键词: 玉簪, 控释氮肥, 生长, 光合特性, 叶绿素荧光

Abstract: Effects of controlled release nitrogen fertilizer(CRNF) on the growth and photosynthetic characteristics of Hosta at different growth stages were studied in this paper using H.ventricosa potted seedlings under 50% shade condition. The results showed as follows: N1 treatment(4 g CRNF) and N2 treatment(8 g CRNF) could increase dry weight at different growth stages of Hosta; could significantly increase Chlb content at morphogenesis stage(MS), Chla, Chlb and Car. contents at booting stage(BS) and flowering stage(FS); and could significantly increase Pn at different growth stages of Hosta. Fv/Fm, ФPSⅡ, Fv/Fm of N1 treatment were significantly higher than control at BS and FS, Fv/Fm, ФPSⅡ, Fv/Fm of N2 treatment were significantly higher than control at MS and FS, while only Fv/Fm at BS. There were no significant differences in qP between all CRNF treatments and control with the except N1 treatment at MS. NPQ of all CRNF treatments had no significant differences with control at MS, but significantly lower than control at BS and FS.

Key words: Hosta ventricosa, Controlled release nitrogen fertilizer(CRNF), Growth, Photosynthetic characteristics, Chlorophyll fluorescence

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