The relationship between the soil water storage and water-use efficiency of seven energy crops

被引：11

作者：

Podlaski, S. ^{[1
]}

Pietkiewicz, S. ^{[1
]}

Choluj, D. ^{[1
]}

Horaczek, T. ^{[2
]}

Wisniewski, G. ^{[1
]}

Gozdowski, D. ^{[3
]}

Kalaji, H. M. ^{[1
]}

机构：

[1] Warsaw Univ Life Sci WULS SGGW, Fac Agr & Biol, Dept Plant Physiol, Nowoursynowska 166 St, PL-02787 Warsaw, Poland

[2] Inst Technol & Life Sci ITP, Dept Plant Prod Engn, Mazowian Reseach Ctr Kludzienko, Kludzienko St 7, PL-05825 Grodzisk Mazowiecki, Poland

[3] Warsaw Univ Life Sci WULS SGGW, Fac Agr & Biol, Dept Expt Design & Bioinformat, Nowoursynowska 166 St, PL-02787 Warsaw, Poland

来源：

PHOTOSYNTHETICA | 2017年 / 55卷 / 02期

关键词：

drought; gas exchange; selection criteria; soil water content; GRASSES; YIELD; IMPROVEMENT; EUROPE; C-3;

D O I：

10.1007/s11099-017-0697-0

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The aim of this work was to determine two types of photosynthetic water-use efficiency in order to examine their utility as selection criteria for tolerance of energy crops to soil water deficit. Furthermore, effects of crop cultivation on soil water content and storage were investigated. Seven energy crops were examined: miscanthus, prairie cordgrass, willow, thorn-free rose, Virginia mallow, Bohemian knotweed, and topinambour. The highest values of instantaneous (WUE) and intrinsic (WUEi) water-use efficiencies were found for miscanthus and prairie cordgrass. The reduction of WUE and/or WUEi was caused mainly by a rapid rise in the transpiration rate and a greater stomatal conductance, respectively. Principal component analysis showed that neither WUE nor WUEi could be recommended as universal selection criteria for the drought tolerance in different energy crops. The proper localization of soil with a good supply of water is most the important condition for energy crop plantations.

引用

页码：210 / 218

页数：9

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