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水分胁迫下增施氮、磷对刺槐无性系苗木光合特性的影响

何明 翟明普 曹帮华

北京林业大学学报2009,Vol.31Issue(6):116-120,5.
北京林业大学学报2009,Vol.31Issue(6):116-120,5.

水分胁迫下增施氮、磷对刺槐无性系苗木光合特性的影响

Effects of increased nitrogen and phosphorus on photosynthetic characteristics of Robinia pseudoacacia clonal seedlings under water stress

何明 1翟明普 2曹帮华3

作者信息

  • 1. 浙江林学院森林培育学科
  • 2. 北京林业大学省部共建森林培育与保护教育部重点实验室
  • 3. 山东农业大学森林培育学科
  • 折叠

摘要

Abstract

With orthognnal experimental design, potted seedlings of two black locust clones were grown in a light incubator to study the effects of increased nitrogen and phosphorus on photosynthetic characteristics of the seedlings under different levels of water stress. Analyses of photosynthesis-light response curve, P_(n max), light saturation point (LSP), light compensation point (LCP) and the content of chlorophylls showed that with increased drought, LSP and LCP were influenced significantly by the interaction between nitrogen and phosphorus at the early stage of water stress, which was not significant at the late stage of water stress. Based on comparison between photosynthetic characteristics of the two black locust clones, it was concluded that L_1 was more tolerant of drought than W_1.

关键词

刺槐/光合特性//

Key words

Robinia pseudoacacia/photosynthetic characteristics/ nitrogen/ phosphorus

分类

农业科技

引用本文复制引用

何明,翟明普,曹帮华..水分胁迫下增施氮、磷对刺槐无性系苗木光合特性的影响[J].北京林业大学学报,2009,31(6):116-120,5.

基金项目

"十一五"国家科技支撑计划项目(2006BAD03A11-04). (2006BAD03A11-04)

北京林业大学学报

OA北大核心CSCDCSTPCD

1000-1522

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