Combined effects of long-term salinity and soil drying on growth, water relations, nutrient status and proline accumulation of Sesuvium portulacastrum

Slama, Inès; Ghnaya, Tahar; Savouré, Arnould; Abdelly, Chédly

doi:10.1016/j.crvi.2008.03.006

Cited by 124 publications

(89 citation statements)

References 41 publications

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“…However, the decrease of the leaf area in the presence of the water deficit was resulted in a reduction of the dry matter accumulation (Martinielli and Da Silva, 2011). Our results showed an increase of the root/shoot ratio as was mentioned by Bingcheng et al (2007) and Slama et al (2008). This indicated that water stress has entailed a severe decrease in the biomass air part than the root biomass.…”

Section: Discussionsupporting

confidence: 64%

Effect of Drought on Growth and Chlorophyll Content in Three Vetch Species

Haffani

2013

IOSR-JAVS

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Plants in the nature are constantly exposed to biotic and abiotic stresses. Among these stresses, the drought is the mainly important factor unfavorable to the growth and the development of plants, and it is considered as a threat in the sustainable agriculture especially in dry regions. The aim of this work is to study the effect of 4 water regimes [100% (control) -80 -60 and 40% of the field capacity (FC)] on the dimensional and weight growth and on the chlorophyll content in three vetch species (Vicia narbonensis, V. sativa and V. villosa). The experiment was carried out under greenhouse in a randomized complete block design with four replicates. The sowing was realized by one pre-germinating seed per pot. The water stress was imposed at the two leaves stage. The parameters were determined after 71 days of drought. Results showed that height, leaf area and dry matter of shoots and roots decreased significantly with the water stress intensities on the three vetch species. However, V. villosa was the most sensitive one at this stage of growth, compared to Narbonne vetch. The biomass reduction was in concomitance with an important decrease in chlorophyll content which reached 44% and 20% respectively for V. villosa and V. narbonensis.

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Section: Discussionsupporting

confidence: 64%

Effect of Drought on Growth and Chlorophyll Content in Three Vetch Species

Haffani

2013

IOSR-JAVS

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“…The most negative values for leaf water potential and stem water potential have been found in plants submitted to both water stress and salinity, as both passive dehydration and salt accumulation contribute to lowering the leaf water potential [132]. According to Álvarez and Sánchez-Blanco [42,44], stem water potential measured at midday is a good indicator of stress resulting from deficit irrigation or salinity.…”

Section: Effects Of Salinity On Leaf Water Relations and Gas Exchangementioning

confidence: 99%

Plant Responses to Salt Stress: Adaptive Mechanisms

Acosta‐Motos¹,

Ortuño²,

Bernal‐Vicente³

et al. 2017

Preprint

359

200

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This review deals with the adaptive mechanisms that plants can implement to cope with the challenge of salt stress. Plants tolerant to NaCl implement a series of adaptations to acclimate to salinity, including morphological, physiological and biochemical changes. These changes include increases in the root/canopy ratio and in the chlorophyll content in addition to changes in the leaf anatomy that ultimately lead to preventing leaf ion toxicity, thus maintaining the water status in order to limit water loss and protect the photosynthesis process. Furthermore, we deal with the effect of salt stress on photosynthesis and chlorophyll fluorescence and some of the mechanisms thought to protect the photosynthetic machinery, including the xanthophyll cycle, photorespiration pathway, and water-water cycle. Finally, we also provide an updated discussion on salt-induced oxidative stress at the subcellular level and its effect on the antioxidant machinery in both salt-tolerant and salt-sensitive plants. The aim is to extend our understanding of how salinity may affect the physiological characteristics of plants.

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“…Until now, many researchers clarified numerous effects on plant growth (Ismail et al, 1994;Wang et al, 2009b), dry matter allocation (Yin et al, 2005;Mandal et al, 2006;Wu et al, 2008;Li et al, 2009;Sun et al, 2009;Gerardeaux et al, 2010), photosynthesis (Syros et al, 2004), nutrient concentration and status (Wang et al, 1998;Jose et al, 2003;Slamaa et al, 2008;Keutgen and Pawelzik, 2009). The oil palm (Elaeis guineensis Jacq.)…”

Section: Introductionmentioning

confidence: 99%

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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Combined effects of long-term salinity and soil drying on growth, water relations, nutrient status and proline accumulation of Sesuvium portulacastrum

Cited by 124 publications

References 41 publications

Effect of Drought on Growth and Chlorophyll Content in Three Vetch Species

Effect of Drought on Growth and Chlorophyll Content in Three Vetch Species

Plant Responses to Salt Stress: Adaptive Mechanisms

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

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