Effect of progressive drought stress on growth, leaf gas exchange, and antioxidant production in two maize cultivars

Anjum, Shakeel Ahmad; Tanveer, Mohsin; Ashraf, Umair; Hussain, Saddam; Shahzad, Babar; Khan, Imran; Wang, Longchang

doi:10.1007/s11356-016-6894-8

Cited by 110 publications

(76 citation statements)

References 34 publications

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“…2) in both the cultivars. The same pattern was observed in sugarcane (Queiroz et al 2011) and maize (Anjum et al 2016). Nonetheless, MG/BR exhibited a higher proline content when compared to BRS at -0.5 MPa (Fig.…”

Section: Resultssupporting

confidence: 80%

Biochemical examination of non-transgenic and transgenic soybean plants under drought stress conditions

Gonçalves¹,

Silva²,

Alves³

et al. 2019

Biol. plant.

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Section: Resultssupporting

confidence: 80%

Biochemical examination of non-transgenic and transgenic soybean plants under drought stress conditions

Gonçalves¹,

Silva²,

Alves³

et al. 2019

Biol. plant.

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“…Different abiotic stresses affect maize growth and yield and bring changes in physio-biochemical attributes (Anjum et al 2016c;Anjum et al 2016d;Anjum et al 2016e) as well as photosynthesis and gas exchange attributes (Anjum et al 2016a). Among different abiotic stresses, suboptimal temperature (≤12°C) is one of the serious constraints to maize production which damage macromolecules and cellular structures, by production of reactive oxygen species (ROS) (Apel and Hirt 2004).…”

Section: Introductionmentioning

confidence: 99%

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

Waqas

Khan

Akhter

et al. 2017

Environ Sci Pollut Res

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Chilling stress hampers the optimal performance of maize under field conditions precipitously by inducing oxidative stress. To confer the damaging effects of chilling stress, the present study aimed to investigate the effects of some natural and synthetic plant growth regulators, i.e., salicylic acid (SA), thiourea (TU), sorghum water extract (SWE), and moringa leaf extract (MLE) on chilling stress tolerance in autumn maize hybrid. Foliar application of growth regulators at low concentrations was carried out at six leaf (V6) and tasseling stages. An increase in crop growth rate (CGR), leaf area index (LAI), leaf area duration (LAD), plant height (PH), grain yield (GY), and total dry matter accumulation (TDM) was observed in exogenously applied plants as compared to control. In addition, improved physio-biochemical, phenological, and grain nutritional quality attributes were noticed in foliar-treated maize plots as compared to non-treated ones. SA-treated plants reduced 20% electrolyte leakage in cell membrane against control. MLE and SA were proved best in improving total phenolic, relative water (19-23%), and chlorophyll contents among other applications. A similar trend was found for photosynthetic and transpiration rates, whereas MLE and SWE were found better in improving CGR, LAI, LAD, TDM, PH, GY, grains per cob, 1000 grain weight, and biological yield among all treatments including control. TU and MLE have significantly reduced the duration in phenological events of crop at the reproductive stage. MLE, TU, and SA also improved the grain protein, oil, and starch contents as compared to control. Enhanced crop water productivity was also observed in MLE-treated plants. Economic analysis suggested that MLE and SA applications were more economical in inducing chilling stress tolerance under field conditions. Although eliciting behavior of all growth regulators improved morpho-physiological attributes against suboptimal temperature stress conditions, MLE and SA acted as leading agents which proved to be better stress alleviators by improving plant physio-biochemical attributes and maize growth.

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“…Organic osmolytes play very important role in stress alleviation ( Anjum et al, 2016 , 2017a ). Halophytes (for example S. salsa ) produce/accumulate more organic osmolytes such as starch, soluble sugar, and protein in their large seeds as compared with small seeds to ensure optimum seed germination under salt stress ( Guo et al, 2015 , 2018 ; Wang et al, 2015 ; Zhao et al, 2018a ).…”

Section: Germination Of Heteromorphic Seeds Under Salt Stressmentioning

confidence: 99%

Seed Heteromorphism: An Important Adaptation of Halophytes for Habitat Heterogeneity

et al. 2018

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Seed germination is a very critical and important step for seedling establishment under saline environments, as high level of salinity in the soil can prevent seed germination. However halophytes exhibit an interesting mechanism to cope with salt stress. Many halophytes produce heteromorphic seeds, which have different dormancy and germination behavior under saline conditions. This characteristic is related to the structural and physiological differences among heteromorphic seeds. It was unclear that how heteromorphic seeds differently accumulate organic and inorganic substances under saline conditions, and what are the physiological and molecular mechanisms involved in the production of heteromorphic seeds, and in the development of transgenerational plasticity in heteromorphic seeds. In the current brief review, dormancy and germination and the possible role of seed coat and storage compounds in this process of heteromorphic seeds development have been discussed. Moreover, the role of maternal effects on heteromorphic seeds production under saline environments and growth and reproduction capability of the descendants from them have been highlighted.

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Effect of progressive drought stress on growth, leaf gas exchange, and antioxidant production in two maize cultivars

Cited by 110 publications

References 34 publications

Biochemical examination of non-transgenic and transgenic soybean plants under drought stress conditions

Biochemical examination of non-transgenic and transgenic soybean plants under drought stress conditions

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

Seed Heteromorphism: An Important Adaptation of Halophytes for Habitat Heterogeneity

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