Effects of water stress and high temperature on gas exchange and chlorophyll fluorescence in Triticum aestivum L.

被引：67

作者：

Hassan, I. A. ^{[1
]}

机构：

[1] Univ Alexandria, Dept Bot, Fac Sci, Alexandria 21526, Egypt

来源：

PHOTOSYNTHETICA | 2006年 / 44卷 / 02期

关键词：

grain yield; intercellular CO2 concentration; quantum efficiency of photosystem 2; spikelet; stomatal conductance; yield;

D O I：

10.1007/s11099-006-0024-7

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Wheat plants grown in controlled growth chambers were exposed to drought stress (DS) and high temperature (HT) singly and in combination (DS+HT). The effects of these two stresses on net photosynthetic rate (P-N), stomatal conductance (g(s)), intercellular CO2 concentration (C-i), quantum efficiency of photosystem 2 (phi(PS2)) variable to maximum chlorophyll (Chl) fluorescence (F-v/F-m), photochemical (q(p)) and non-photochemical (NPQ) Chl fluorescence, and yield were investigated. Grain yield was decreased by 21 % due to DS, while it was increased by 26 % due to HT. P-N, g(s), C-i, and Chl fluorescence were dramatically reduced to DS, HT, and their interaction, except NPQ which showed an increase due to HT.

引用

页码：312 / 315

页数：4

共 30 条

[1] CORRELATIVE REDUCTIONS IN WHOLE-PLANT PHOTOSYNTHESIS AND YIELD OF WINTER-WHEAT CAUSED BY OZONE [J].

AMUNDSON, RG ;

KOHUT, RJ ;

SCHOETTLE, AW ;

RABA, RM ;

REICH, PB .

PHYTOPATHOLOGY, 1987, 77 (01) :75-79

[2]

[Anonymous], 1992, PLANT MICROCLIMATE Q

[3] PHOTOSYNTHETIC RESPONSE AND ADAPTATION TO TEMPERATURE IN HIGHER-PLANTS [J].

BERRY, J ;

BJORKMAN, O .

ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1980, 31 :491-543

[4] Foliar spraying with zineb increases fruit productivity and alleviates oxidative stress in two tomato cultivars [J].

Calatayud, A ;

Barreno, E .

PHOTOSYNTHETICA, 2000, 38 (01) :149-154

[5] Changes in in vivo chlorophyll fluorescence quenching in lichen thalli as a function of water content and suggestion of zeaxanthin-associated photoprotection [J].

Calatayud, A ;

Deltoro, VI ;

Barreno, E ;

delValleTascon, S .

PHYSIOLOGIA PLANTARUM, 1997, 101 (01) :93-102

[6] EFFECTS OF WATER DEFICITS ON CARBON ASSIMILATION [J].

CHAVES, MM .

JOURNAL OF EXPERIMENTAL BOTANY, 1991, 42 (234) :1-16

[7]

CORNIC G, 1991, PLANTA, V185, P255, DOI 10.1007/BF00194068

[8] Changes in chlorophyll a fluorescence, photosynthetic CO2 assimilation and xanthophyll cycle interconversions during dehydration in desiccation-tolerant and intolerant liverworts [J].

Deltoro, VI ;

Calatayud, A ;

Gimeno, C ;

Abadía, A ;

Barreno, E .

PLANTA, 1998, 207 (02) :224-228

[9] PHOTOPROTECTION AND OTHER RESPONSES OF PLANTS TO HIGH LIGHT STRESS [J].

DEMMIGADAMS, B ;

ADAMS, WW .

ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1992, 43 :599-626

[10] Diurnal oscillation in the intercellular CO2 concentration of spring wheat under the semiarid conditions [J].

Deng, XP ;

Shan, L ;

Ma, YQ ;

Inanaga, S .

PHOTOSYNTHETICA, 2000, 38 (02) :187-192

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