Use of plant growth promoting rhizobacteria (PGPRs) with multiple plant growth promoting traits in stress agriculture: Action mechanisms and future prospects

Ecotoxicology and Environmental Safety, Journal Year: 2018, Volume and Issue: 156, P. 225 - 246

Published: March 20, 2018

Language: Английский

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Regulated deficit irrigation for crop production under drought stress. A review

Agronomy for Sustainable Development, Journal Year: 2015, Volume and Issue: 36(1)

Published: Dec. 18, 2015

Agriculture consumes more than two thirds of the total freshwater planet. This issue causes substantial conflict in allocation between agriculture and other economic sectors. Regulated deficit irrigation (RDI) is key technology because it helps to improve water use efficiency. Nonetheless, there a lack understanding mechanisms with which plants respond RDI. In particular, little known about how RDI might increase crop production while reducing amount real-world agriculture. this review, we found that largely implemented through three approaches: (1) growth stage-based irrigation, (2) partial root-zone (3) subsurface dripper irrigation. Among these, most popular effective many field crops some woody can save up 20 30 % without or minimal impact on yield. Improved efficiency mainly due following: enhanced guard cell signal transduction network decreases transpiration loss, optimized stomatal control improves photosynthesis ratio, decreased evaporative surface areas reduces soil evaporation. The involved plant response RDI-induced stress include morphological traits, e.g., increased root shoot ratio improved nutrient uptake recovery; physiological closure, leaf respiration, maintained photosynthesis; biochemical signaling molecules antioxidation enzymatic activity.

Language: Английский

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Biochar soil amendment on alleviation of drought and salt stress in plants: a critical review

Environmental Science and Pollution Research, Journal Year: 2017, Volume and Issue: 24(14), P. 12700 - 12712

Published: April 3, 2017

Language: Английский

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Silicon (Si): Review and future prospects on the action mechanisms in alleviating biotic and abiotic stresses in plants

Ecotoxicology and Environmental Safety, Journal Year: 2017, Volume and Issue: 147, P. 881 - 896

Published: Sept. 28, 2017

Language: Английский

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Mechanisms of silicon-mediated alleviation of drought and salt stress in plants: a review

Environmental Science and Pollution Research, Journal Year: 2015, Volume and Issue: 22(20), P. 15416 - 15431

Published: Sept. 2, 2015

Language: Английский

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Early Flowering as a Drought Escape Mechanism in Plants: How Can It Aid Wheat Production?

Frontiers in Plant Science, Journal Year: 2017, Volume and Issue: 8

Published: Nov. 17, 2017

Drought escape is a classical adaptive mechanism which involves rapid plant development to enable the completion of full life-cycle prior coming drought event. This strategy widely used in populations native plants, and also applicable cereal crops such as wheat. Early flowering time shorter vegetative phase can be very important for wheat production conditions terminal since this minimise exposure dehydration during sensitive post-anthesis grain filling periods. A gradual shift towards early has been observed over last century breeding countries with Mediterranean-type climate frequent drought. trend predicted continue years response global warming. The advantage apparent under impending Under favourable conditions, short result reduced biomass will limit nutrients assimilates high yield absence stress. However, where trait exists combination other tolerance mechanisms potential have reported, provides promising advanced drought-adapted cultivars.

Language: Английский

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Ascophyllum nodosum-Based Biostimulants: Sustainable Applications in Agriculture for the Stimulation of Plant Growth, Stress Tolerance, and Disease Management

Frontiers in Plant Science, Journal Year: 2019, Volume and Issue: 10

Published: May 29, 2019

Abiotic and biotic stresses limit the growth productivity of plants. In current global scenario, in order to meet requirements ever-increasing world population, chemical pesticides synthetic fertilizers are used boost agricultural production. These harmful chemicals pose a serious threat health humans, animals, plants entire biosphere. To minimize footprint, extracts Ascophyllum nodosum (ANE) have been explored for their ability improve plant productivity. The scientific literature reviewed this article attempts explain how certain bioactive compounds present aid tolerances abiotic and/or stresses, promotion effects on root/microbe interactions. reports highlighted use various seaweed improving nutrient-use-efficiency treated studies include investigations physiological, biochemical molecular mechanisms as evidenced using model However, modes action A. not previously reviewed. information presented review depicts multiple, beneficial nodosum-based biostimulant defense responses suggests new opportunities further applications marked benefits production quality agriculture horticultural sectors.

Language: Английский

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Methodology of Drought Stress Research: Experimental Setup and Physiological Characterization

International Journal of Molecular Sciences, Journal Year: 2018, Volume and Issue: 19(12), P. 4089 - 4089

Published: Dec. 17, 2018

Drought is one of the major stress factors affecting growth and development plants. In this context, drought-related losses crop plant productivity impede sustainable agriculture all over world. general, plants respond to water deficits by multiple physiological metabolic adaptations at molecular, cellular, organism levels. To understand underlying mechanisms drought tolerance, adequate models arrays reliable markers are required. Therefore, in review we comprehensively address currently available stress, based on culturing soil, hydroponically, or agar culture, critically discuss advantages limitations each design. We also methodology characterization it context real experimental approaches. Further, highlight trends methodological developments research, i.e., complementing conventional tests with quantification phytohormones reactive oxygen species (ROS), measuring antioxidant enzyme activities, profiling transcriptome, proteome, metabolome.

Language: Английский

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Global Patterns of Crop Production Losses Associated with Droughts from 1983 to 2009

Journal of Applied Meteorology and Climatology, Journal Year: 2019, Volume and Issue: 58(6), P. 1233 - 1244

Published: April 8, 2019

Abstract Droughts represent an important type of climate extreme that reduces crop production and food security. Although this fact is well known, the global geographic pattern drought-driven reductions in poorly characterized. As incidence relatively more severe droughts expected to increase under change, understanding vulnerability a key research priority. Here, we estimate losses maize, rice, soy, wheat from 1983 2009 using empirical relationships among yields, drought index, annual precipitation. We find approximately three-fourths harvested areas—454 million hectares—experienced drought-induced yield over period, cumulative correspond 166 billion U.S. dollars. Globally averaged, one event decreases agricultural gross domestic by 0.8%, with varying magnitudes impacts country. Crop systems display decreased or increased resilience according increases per capita (GDP) countries extensive semiarid areas. These changes accompany technological improvements represented GDP increases. Our estimates economic offer sound basis for subsequent assessments costs adaptation change.

Language: Английский

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Cultivars to face climate change effects on crops and weeds: a review

Agronomy for Sustainable Development, Journal Year: 2016, Volume and Issue: 36(1)

Published: Feb. 18, 2016

Language: Английский

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