Salt-induced effects on growth and photosynthetic traits of Orychophragmus violaceus and its restoration through re-watering

Javed, Qaiser; Wu, Yanyou; Xing, Deke; Ullah, Ikram; Abdolzadeh, Ahmad; Rasool, Ghulam

doi:10.1007/s40415-017-0432-x

Cited by 15 publications

(19 citation statements)

References 31 publications

(34 reference statements)

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“…Similarly, at T3, the threshold limit for bearing this salinity treatment in the case of Chinese red was Week 8 and, Chinese green, Week 5. At these threshold durations, both cultivars needed to reduce salt concentrations for their survival (Javed et al, 2018). In all previous studies, the researchers overcame the salt stress effect with different techniques and methods, such as using halophyte crops (Belkheiri and Mulas, 2013) and by removing salt in the root zone by scraping, flushing and leaching (Jouyban, 2012).…”

Section: Physiological and Growth Trait Relationship Under Salt Stressmentioning

confidence: 99%

“…In all previous studies, the researchers overcame the salt stress effect with different techniques and methods, such as using halophyte crops (Belkheiri and Mulas, 2013) and by removing salt in the root zone by scraping, flushing and leaching (Jouyban, 2012). Some of them gave fresh water while re-watering (Javed et al, 2018), and many used biochar in the soil to overcome salinity effects (She et al, 2018;Huang et al, 2019). According to the response of both cultivars, we suggest using dilute water for re-watering, i.e.…”

Section: Physiological and Growth Trait Relationship Under Salt Stressmentioning

confidence: 99%

“…Some papers have evaluated the response of crops and vegetables to different concentrations of saline water and reported a higher production under slight and moderate concentrations of salts (Riccardi et al, 2014;Elshaikh et al, 2018). Furthermore, a number of researchers have reduced the effects of saline irrigation by applying the method of re-watering or by using diluted water after 1 week to a maximum of 3 weeks without considering the duration of the effects on plants (Azeem et al, 2017a(Azeem et al, , 2017bJaved et al, 2017Javed et al, , 2018. However, no reports are related to the plant survival ability or threshold values with respect to salt duration.…”

Section: Introductionmentioning

confidence: 99%

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Functional traits of okra cultivars (Chinese green and Chinese red) under salt stress

Abdolzadeh

Javed

Sun

et al. 2020

Folia Horticulturae

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Two okra cultivars (Chinese green and Chinese red) were subjected to salt stress for 12 weeks. Salt stress treatments T1 (20.8 mM), T2 (103.3 mM), T3 (180.0 mM) and T4 (257.0 mM) were applied with equal proportions of NaCl and CaCl2 in Hoagland nutrient solution. Salt stress significantly affects photosynthesis, transpiration, stomatal conductance, water use efficiency, water potential, plant height, root length, fresh weight and dry weight of both okra cultivars in every salt stress treatment. At T2, T3 and T4, Chinese red plants maintained their physiological and growth traits up to Weeks 9, 6 and 3, respectively; beyond these salt-stress durations, growth reductions were found. Similarly, Chinese green plants maintained their growth up to Weeks 9, 5 and 3, respectively, at T2, T3 and T4 treatments. In comparison, Chinese red showed more tolerance than Chinese green. According to the results, the third and ninth weeks are the tolerance threshold limits for both cultivars to sustain their physiological traits and growth under T4 and T2 salinity treatments. Similarly, Chinese red has the threshold limit to bear T3 treatment up to the eighth week and Chinese green, up to the fifth week. Thus, this study provides a new method to determine the threshold value of crops with respect to duration under salt stress. This finding would be useful in the field of water saving and utilisation of saline water resources.

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Section: Physiological and Growth Trait Relationship Under Salt Stressmentioning

confidence: 99%

Section: Physiological and Growth Trait Relationship Under Salt Stressmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Functional traits of okra cultivars (Chinese green and Chinese red) under salt stress

Abdolzadeh

Javed

Sun

et al. 2020

Folia Horticulturae

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“…It has also been signified in this study that both nutrient and water treatments had significant effect on the plant physiological characteristics, which are considered as important traits among all functional traits of a plant. [ 51,52 ] Alternanthera philoxeroides has shown higher values of photosynthetic traits under full water supply conditions in both natural and nutrient soils (Figures 5 and 6). The results are in agreement with preceding findings that invasive plants can show a higher competitive ability in both dry and waterlogged conditions due to its better photosynthesis ability.…”

Section: Discussionmentioning

confidence: 99%

Addition of Phosphorus and Nitrogen Support the Invasiveness of Alternanthera Philoxeroides Under Water Stress

Sun

Javed

Abdolzadeh

et al. 2020

CLEAN Soil Air Water

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Coordination of plant functional traits with changes in the environment is helpful to understand the mechanisms underlying both invasiveness and adaptation of plants. Thus, to investigate the performance and functional traits in invasive Alternanthera philoxeroides (Mart.), an experiment of water stress is conducted with different nutrient concentrations. Alternanthera philoxeroides plants are grown under natural and nutrient soils and subjected to three levels of nitrogen (N) and phosphorus (P) solution: ambient P and N concentration (P−N−), P addition with an ambient N concentration (P+N−), and P addition with high N concentration (P+N+) in combination with three different irrigation water levels as 1) 100% irrigation, 2) 50% irrigation, and 3) 25% deficit irrigation. Based on results, A. philoxeroides produces significantly higher biomass in both soils under 100% irrigation with P+N− treatment and exhibits higher values of leaf area and root length. However, 25% irrigation with P−N− treatment in both soils exerts a significant negative effect on relative growth rate and root/shoot ratio of A. philoxeroides plants. Under 50% irrigation in soils with both P+N− and P+N+ treatments, high values of leaf nitrogen are recorded. Moreover, nutrient soil is more supportive to A. philoxeroides than natural soil.

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“…The effects of salt stress on physiological features can be alleviated and recovered through rewatering. Rewatering of saline water is a good approach for a plant to recover and sustain its growth and improve plant survival under salinity stressed environment (Javed et al, 2018). Invasive plants may become more competitive than their cooccurring native plants due to their better adaptation under increasing salt stress (Ozaslan et al, 2016) following rewatering.…”

Section: Introductionmentioning

confidence: 99%

The Enhanced Tolerance of Invasive Alternanthera Philoxeroides Over Native Species Under Salt-Stress in China

Javed¹

2019

Appl. Ecol. Env. Res.

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Effects of environmental stress (e.g. salt stress) on the plant invasions are still relatively unknown. Therefore, we analyzed the physiological characteristics of Alternanthera philoxeroides (Mart.) Griseb. as an invasive plant and Alternanthera sessilis (L.) R.Br. ex DC. as a native plant under single and mixed planting, in green house, Jiangsu University, China. Plants were subjected to four different levels of salt stress treatments "i.e.", control, low (0.8%), medium (1.6%) and high (2.4%) that were made with equal proportion of NaCl and CaCl2 followed by rewatering. The results showed, that different levels of salt stress affect the plant growth of both species differently. The net photosynthetic rate (Pn) for A. philoxeroides was higher from low to high stress of both single and mixed planting that of A. sessilis. Afterwards, during rewatering, the increments in Pn from low to high salt stress were also found higher in A. philoxeroides. In addition, the reduction in photosynthetic activity in A. sessilis under mixed planting during salt stress markedly affected the plant growth. After rewatering the comparative increments in plant growth parameter were also noted higher in A. philoxeroides than A. sessilis. Our results thus suggest that A. philoxeroides may possess a better adaptability to salt stress, which results in a successful competitive dominance.

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Salt-induced effects on growth and photosynthetic traits of Orychophragmus violaceus and its restoration through re-watering

Cited by 15 publications

References 31 publications

Functional traits of okra cultivars (Chinese green and Chinese red) under salt stress

Functional traits of okra cultivars (Chinese green and Chinese red) under salt stress

Addition of Phosphorus and Nitrogen Support the Invasiveness of Alternanthera Philoxeroides Under Water Stress

The Enhanced Tolerance of Invasive Alternanthera Philoxeroides Over Native Species Under Salt-Stress in China

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