Nitrogen nutrition and water stress effects on leaf photosynthetic gas exchange and water use efficiency in winter wheat

Shangguan, Zhouping; Shao, Mingan; Dyckmans, Jens

doi:10.1016/s0098-8472(00)00064-2

Cited by 238 publications

(134 citation statements)

References 37 publications

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“…Many studies have been carried out to indicate that water deficit reduced N and P concentrations in leaves; N and P were affected more than K and plant nutrient content were lower under drought stress and soil nutrient shortage and overdose; their findings are in accordance with the present results (Eck and Musick, 1979;Shangguan et al, 2000;Bruyn et al, 2002). It can be seen from Table 4 that the more significant correlations between leaf area, root/shoot ratios, Chlorophyll a/b and phosphorus concentration with other index under different treatments than other investigated traits, may be good indicators for the physiological and growth characters, nutrient concentration responses to water and nutrient stress of oil palm seedlings.…”

Section: Treatment Correlation Coefficient Traitssupporting

confidence: 92%

Growth and physiological responses to water and nutrient stress in oil palm

Sun¹,

Cao²,

Shao³

et al. 2011

Afr. J. Biotechnol.

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The research was conducted to detect changes in growth, physiology and nutrient concentration in response to two watering regimes (well-watered and water-stress conditions) and to two nutrient regimes (with or without fertilization) of oil palm. Under stress conditions, changes in plant growth, dry matter allocation, relative water content, leaf relative conductivity, leaf N, P and K concentration are usually observed. These characteristics and related parameters were determined and the experiment results are listed as follows: (1) fertilization promoted the growth of oil palm under well-watered conditions, while under water stress conditions its effects on growth was negative. The ratio of root/shoot was increased under water stress condition; (2) relative water content and chlorophyll a/b content were gradually decreased while leaf relative conductivity was increased quickly under water and nutrient stress conditions during the experiment. It is obvious that water stress had a greater influence than nutrient stress on these parameters; (3) water and nutrient stress decreased leaf nitrogen and phosphorus concentration but increased potassium concentration; the combination of water and nutrient stress made significant effects on nitrogen and phosphorus concentration, but no significant effects on potassium concentration. Moreover, deficiency of both water and nutrients in combination had the greatest impact on changes in these traits of oil palm.

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Section: Treatment Correlation Coefficient Traitssupporting

confidence: 92%

Growth and physiological responses to water and nutrient stress in oil palm

Sun¹,

Cao²,

Shao³

et al. 2011

Afr. J. Biotechnol.

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“…However, we observed an increase in c i /c a in lodgepole pine exposed to elevated CO 2 levels likely due to decreased photosynthetic capacity. The N concentration of plant leaves is positively correlated with photosynthetic capacity (Field and Mooney, 1986), as most of the N in leaves is used for synthesis of photosynthetic enzymes, and in particular Rubisco (Shangguan et al, 2000). The N concentration of lodgepole pine decreases with an increase in atmospheric CO 2 concentration (r 2 =0.47; P <0.03) (Fig.…”

Section: Resultsmentioning

confidence: 92%

Carbon and oxygen isotope analysis of leaf biomass reveals contrasting photosynthetic responses to elevated CO<sub>2</sub> near geologic vents in Yellowstone National Park

Sharma

Williams

2009

Biogeosciences

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Abstract. In this study we explore the use of natural CO 2 emissions in Yellowstone National Park (YNP) in Wyoming, USA to study responses of natural vegetation to elevated CO 2 levels. Radiocarbon ( 14 C) analysis of leaf biomass from a conifer (Pinus contortus; lodgepole pine) and an invasive, non-native herb (Linaria dalmatica; Dalmation toadflax) was used to trace the inputs of vent CO 2 and quantify assimilation-weighted CO 2 concentrations experienced by individual plants near vents and in comparable locations with no geologic CO 2 exposure. The carbon and oxygen isotopic composition and nitrogen percent of leaf biomass from the same plants was used to investigate photosynthetic responses of these plants to naturally elevated atmospheric CO 2 concentrations. The coupled shifts in carbon and oxygen isotope values suggest that dalmation toadflax responded to elevated CO 2 exposure by increasing stomatal conductance with no change in photosynthetic capacity and lodgepole pine apparently responded by decreasing stomatal conductance and photosynthetic capacity. Lodgepole pine saplings exposed to elevated levels of CO 2 likewise had reduced leaf nitrogen concentrations compared to plants with no enhanced CO 2 exposure, further suggesting widespread and dominant conifer down-regulated photosynthetic capacity under elevated CO 2 levels near geologic vents.

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“…Apart from evaporation, other properties such as soil depth, water holding capacity, salinity, soil resistance and nitrogen content can either limit the water available to crops or affect photosynthesis rates in other ways (see Masle and Farquhar, 1988;Farquhar et al, 1989;Condon et al, 1992;Shangguan et al, 2000; Shaheen and Hood-Nowotny, 2005;Cabrera-Bosquet et al, 2007). The variable nature of soil properties means that they can change considerably within a relatively small area, affecting noticeable intra-and interspecies differences in plant stable isotope composition within the same habitat (Tieszen, 1991;Heaton, 1999).…”

Section: Evapotranspiration and Local Growing Conditionsmentioning

confidence: 99%

An investigation into the archaeological application of carbon stable isotope analysis used to establish crop water availability: solutions and ways forward

Stokes¹,

Müldner²,

Jenkins³

2011

Water, Life and Civilisation

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Nitrogen nutrition and water stress effects on leaf photosynthetic gas exchange and water use efficiency in winter wheat

Cited by 238 publications

References 37 publications

Growth and physiological responses to water and nutrient stress in oil palm

Growth and physiological responses to water and nutrient stress in oil palm

Carbon and oxygen isotope analysis of leaf biomass reveals contrasting photosynthetic responses to elevated CO<sub>2</sub> near geologic vents in Yellowstone National Park

An investigation into the archaeological application of carbon stable isotope analysis used to establish crop water availability: solutions and ways forward

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Nitrogen nutrition and water stress effects on leaf photosynthetic gas exchange and water use efficiency in winter wheat

Cited by 238 publications

References 37 publications

Growth and physiological responses to water and nutrient stress in oil palm

Growth and physiological responses to water and nutrient stress in oil palm

Carbon and oxygen isotope analysis of leaf biomass reveals contrasting photosynthetic responses to elevated CO&lt;sub&gt;2&lt;/sub&gt; near geologic vents in Yellowstone National Park

An investigation into the archaeological application of carbon stable isotope analysis used to establish crop water availability: solutions and ways forward

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Carbon and oxygen isotope analysis of leaf biomass reveals contrasting photosynthetic responses to elevated CO<sub>2</sub> near geologic vents in Yellowstone National Park