[1]曹晓霞,郭建斌,杨晓菲,等.不同浓度叶面肥处理对核桃瞬时水分利用效率的影响[J].西北林学院学报,2011,26(03):26-29.
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不同浓度叶面肥处理对核桃瞬时水分利用效率的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第26卷
期数:
2011年03期
页码:
26-29
栏目:
森林生物学
出版日期:
2011-05-02

文章信息/Info

作者:
曹晓霞;郭建斌;杨晓菲;秦宁;蒋坤云;李文斌;
北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室;陕西科技大学资源与环境学院;
关键词:
叶面肥核桃净光合速率蒸腾速率瞬时水分利用效率
文献标志码:
A
摘要:
以核桃为试验材料,采用盆栽试验,运用LI-6200便携式光合仪、美制LI-1600稳态气孔计分别测定核桃苗木叶片净光合速率、蒸腾速率等水分生理指标,并计算树种的瞬时水分利用效率。初步分析了不同浓度叶面肥处理下核桃净光合速率、蒸腾速率的日变化以及水分利用效率的变化。结果表明:不同浓度处理下,核桃净光合速率、蒸腾速率日变化均呈"双峰"曲线,净光合速率日变化存在光合"午休"现象。核桃的瞬时水分利用效率在8:00左右最大,18:00达到一天中的最低水平。方差分析表明,叶面肥浓度稀释1 200倍时,核桃的瞬时水分利用效率最大,清水(对照)的瞬时水分利用效率最小。

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备注/Memo

备注/Memo:
国家“十一五”科技支撑专题“困难立地工程造林新材料、新产品及应用技术”(2006BAD03A0301)
更新日期/Last Update: 2011-05-20