Response of seedlings of two Eucalyptus and three deciduous tree species from Ethiopia to severe water stress

Gindaba, Jiregna; Rozanov, Andrei; Negash, Legesse

doi:10.1016/j.foreco.2004.07.009

Cited by 89 publications

(72 citation statements)

References 21 publications

(35 reference statements)

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“…4a). This is consistent with the findings of Gindaba et al (2004), who reported that decreased RWC under drought would result in decline in photosynthate accumulation. The decrease in WUE of B. faberi var.…”

Section: Discussionsupporting

confidence: 93%

“…Reports for crops (Ogbonnaya et al 1998;Gindaba et al 2004) and woody plants ( Gratani and Varone 2004;Masinde et al 2006) indicate that RWC rarely falls below 50% in well-watered conditions, but commonly reaches 50-40% and occasionally 30 to 20% during severe drought. Similarly, the response of RWC in B. faberi var.…”

Section: Discussionmentioning

confidence: 99%

“…Turgid weight (TW) was determined for leaves were floated in distilled water in a closed container at 4°C in the dark for 24 h. Dry weight (DW) was determined for the same leaves after oven drying for 48 h at 70°C. RWC was calculated as: RWC (%) = [(FW -DW)/ (TW -DW)] 9 100 (Gindaba et al 2004;Jeon et al 2006). …”

Section: Parameter Measurement and Calculationmentioning

confidence: 99%

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Growth, biomass partitioning, and water-use efficiency of a leguminous shrub (Bauhinia faberi var. microphylla) in response to various water availabilities

Bao

et al. 2008

New Forests

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Responses of the endemic leguminous shrub Bauhinia faberi var. microphylla, to various soil water supply regimes were studied in order to assess water stress tolerance of seedlings. Two-month-old seedlings were grown under water supply regimes of 100, 80, 60, 40, and 20% water field capacity (FC), respectively, in a temperature and light-controlled greenhouse. Plant height and leaf number were measured monthly over a 4-month period, while water use (WU), water-use efficiency (WUE), leaf relative water content (RWC), biomass production and its partitioning were recorded at the end of the experiment. Seedlings exhibited the greatest biomass production, height, basal diameter, branch number, leaf number, and leaf area when soil content was at 100% FC, and slightly declined at 80% FC. These parameters declined significantly under 60% FC water supply, and severely reduced under 40 and 20% FC. RWC, WU and WUE decreased, while the ratio of root mass to stem mass (R:S) increased in response to decreasing water supply. Water stress caused leaf shedding, but not plant death. The results demonstrated that B. faberi var. microphylla seedlings could tolerate drought by reducing branching and leaf area while maintaining a high R:S ratio. However, low dry mass and WUE at 40 and 20% FC suggested that the seedlings did not produce significant biomass under prolonged severe water deficit. Therefore, before introducing B. faberi var. microphylla in vegetation restoration efforts, water supply above 40% FC is recommended for seedlings to maintain growth.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

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Growth, biomass partitioning, and water-use efficiency of a leguminous shrub (Bauhinia faberi var. microphylla) in response to various water availabilities

Bao

et al. 2008

New Forests

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“…After 28 days, the RWC in the drought group significantly declined, reaching less than 50% after 42 days. Previous studies observed similar results in crops (Ogbonnaya et al, 1998;Gindaba et al, 2004) and woody plants (Gratani and Varone, 2004;Masinde et al, 2006;Li et al, 2008), and indicated that RWC rarely falls below 50% in wellwatered conditions but commonly reaches 50%-40%, and occasionally 30%-20%, during severe drought. The growth of P. mongolica seedlings was significantly influenced by the soil water content.…”

Section: Discussionsupporting

confidence: 65%

Effects of gradual soil drought stress on the growth, biomass partitioning, and chlorophyll fluorescence of Prunus mongolica seedlings

Guo¹,

HongYuan²,

Kong³

et al. 2015

Turk J Biol

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Water stress suppresses the accumulation of oilseed rape biomass and decreases chlorophyll content and leaf water status (Liu et al., 2013). Yin et al. (2005) reported that shoot height, dry mass accumulation, leaf number, total leaf area, and fine root mass significantly decrease under water stress. Biomass is a key parameter that influences plant growth; therefore, the accumulation and distribution of dry mass are major considerations when investigating the effect of water stress on plant growth. Plant photosynthesis is closely affected by environmental factors, such as water stress (Wu et al., 2010). Therefore, research on plant photosynthesis and biomass allocation under water stress is important for revealing the mechanism by which plants adapt to drought.The perennial deciduous shrub Prunus mongolica is an endemic, endangered, and third-class nationally protected species in China. This species is a suitable ecological and landscape plant and an important resource plant in China because its seeds can be used as food, medicine, and fuel. It is mainly distributed in Neimenggu, Ningxia, and Gansu in northwestern China (Siqinbateer and Xiu, 2007). However, natural forests dominated by P. mongolica can only be found in the desert regions and arid slopes

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“…The increased transmittance that we observed in our study can therefore not be attributed to changes in leaf water content. Gindaba et al 2004). In other families, Arbutus unedo (Ericaceae) leaves also move diurnally (Gratani and Ghia 2002).…”

Section: Stomatal Conductance Response To Microclimate and Soil Watermentioning

confidence: 99%

Disturbances in European beech water relation during an extreme drought

Peiffer

Bréda

Badeau

et al. 2014

Annals of Forest Science

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Response of seedlings of two Eucalyptus and three deciduous tree species from Ethiopia to severe water stress

Cited by 89 publications

References 21 publications

Growth, biomass partitioning, and water-use efficiency of a leguminous shrub (Bauhinia faberi var. microphylla) in response to various water availabilities

Growth, biomass partitioning, and water-use efficiency of a leguminous shrub (Bauhinia faberi var. microphylla) in response to various water availabilities

Effects of gradual soil drought stress on the growth, biomass partitioning, and chlorophyll fluorescence of Prunus mongolica seedlings

Disturbances in European beech water relation during an extreme drought

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