Plant Water Relations: A Whirlwind of Change

Boyer, John S.

doi:10.1007/124_2017_3

Cited by 4 publications

(4 citation statements)

References 103 publications

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“…The results of our study showed that drought stress has reduced the amounts of Chl a and Chl b in alfalfa plants (Figure 3), which might be caused by enhanced activities of chlorophyllase during drought stress (Boyer, 2017). Apart from this, reduced content of photosynthetic pigments can result from oxidation and degradation of chlorophyll and is considered as a common symptom of drought‐induced oxidative stress (Anjum et al, 2011); this is well confirmed by the statistically significant increase in MDA in the case of single drought effect in this research too (Figure 4).…”

Section: Discussionmentioning

confidence: 74%

Nitrogen supplement attenuates drought stress for non‐leguminous hybrid plant fescue and does not affect nitrogen‐fixing alfalfa

Januškaitienė

Kacienė

Dikšaitytė

et al. 2021

J Agronomy Crop Science

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Estimated anthropogenic global warming is currently increasing at 0.2°C per decade and will likely reach 1.5°C between 2030 and 2050 (Pishva et al., 2020). As a result, the evapotranspiration rate is enhanced and therefore increases the likelihood of drought stress in plants (Yang et al., 2010). Drought frequency and intensity in drylands is projected to increase from 1% to 30% by 2100 (Dai, 2013). Globally, about one-third of the land area is affected by drought (Pishva et al., 2020). It is a major threat and the most unpredictable constraint, causing considerable adverse effects on crop production worldwide (Anjum et al., 2017;Hussain et al., 2018).These effects include a variety of plant functional and biochemical disorders, such as reduction in the rate of carbon uptake and turgor, increased oxidative damage, changes in leaf gas exchange, activity of enzymes and ion balance, resulting in impaired development, growth

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Section: Discussionmentioning

confidence: 74%

Nitrogen supplement attenuates drought stress for non‐leguminous hybrid plant fescue and does not affect nitrogen‐fixing alfalfa

Januškaitienė

Kacienė

Dikšaitytė

et al. 2021

J Agronomy Crop Science

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“…However, these conclusions are often reached in studies where changes in root growth and physiology are not quantified. It is worthy of note that, to avoid the effect of growth-induced water potential in leaves and roots samples ( Cavalieri and Boyer, 1982 ; Boyer, 2017 ), growing tissue (e.g. root tips and young leaves) was not used for water potential measurements.…”

Section: Discussionmentioning

confidence: 99%

“…4B , D ), which resulted from a reduced solute potential in tissues through osmotic adjustment. The maintenance of turgor pressure is important for tissue to continue growing despite the decrease of tissue water potential ( Boyer, 2017 ). Interestingly, the root turgor pressure in droughted plants increased from 4 d after the last watering when the soil drying became more severe ( Fig.…”

Section: Discussionmentioning

confidence: 99%

Stomatal and growth responses to hydraulic and chemical changes induced by progressive soil drying

Wilkinson

Shen

et al. 2017

Journal of Experimental Botany

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“…Drought stress can induce morphological and physiological changes in plants which has been widely studied in recent years (10). Water shortage limited the leaf area expansion by leaf dehydration, rolling, senescence, and reduction meristem cells growth and division (11). Leaf relative water content reduction under drought stress causes stomata closure and gas exchanges finite.…”

Section: Introductionmentioning

confidence: 99%

Biological and chemical nitrogen fertilizer impact on cumin (Cuminum cyminum L) under different irrigation regimens

Pishva

Amini-Dehaghi

Bostani

et al. 2020

J Herbmed Pharmacol

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Introduction: Water and nitrogen deficits are the most important limiting factors for plant growth and crop production in the world. Drought stress would be amplified by the global warming. Moreover, nitrogen scarcity is occurred in most arid and semi-arid areas. Cumin (Cuminum cyminum L.) is an important plant due to export benefits and low water demand. This study was aimed to evaluate nitrogen fertilizer effect on yield and some physiological characteristics of cumin under different irrigation regimens. Methods: The experiment was performed based on a split plot as randomized complete block design. Experiment treatments were irrigation regimens (field capacity, irrigation by draining 40% of soil water as middle stress, and irrigation by draining 80% of soil water as severe stress) and nitrogen fertilizers (60 kg ha-1 urea, 30 kg ha-1 urea, Nitroxin, and Nitroxin + 30 kg ha-1 urea). Results: Drought stress reduced cumin dry weight, seed yield, and chlorophyll content. In contrary, proline content, malondialdehyde (MDA) rate, phenol content, anthocyanin amount, and activity of catalase (CAT) and peroxidase (POX) increased by water stress. Increment urea use resulted in amending cumin growth and seed yield in the field capacity. Also, nitrogen use and raising its rate under the middle water stress caused to improve cumin drought tolerance. However, under the severe water stress, nitrogen application had not a significant impress on drought acclimation and seed yield. Conclusion: Nitroxin inoculation with use of 30 kg ha-1 urea was the most effective treatment to ameliorate seed yield and drought tolerance.

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Plant Water Relations: A Whirlwind of Change

Cited by 4 publications

References 103 publications

Nitrogen supplement attenuates drought stress for non‐leguminous hybrid plant fescue and does not affect nitrogen‐fixing alfalfa

Nitrogen supplement attenuates drought stress for non‐leguminous hybrid plant fescue and does not affect nitrogen‐fixing alfalfa

Stomatal and growth responses to hydraulic and chemical changes induced by progressive soil drying

Biological and chemical nitrogen fertilizer impact on cumin (Cuminum cyminum L) under different irrigation regimens

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