Film antitranspirants increase yield in drought stressed wheat plants by maintaining high grain number

Abdullah, Araz S.; Aziz, M. M.; Siddique, Kadambot H. M.; Flower, Ken

doi:10.1016/j.agwat.2015.05.018

Cited by 34 publications

(25 citation statements)

References 41 publications

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“…The detrimental effects on A max in WW and MWS plants are symptoms of the AT-derived stomatal occlusion that restricted the diffusion of CO 2 into the intracellular airspace of the adaxial-sprayed leaf side. In the present work, however, AT-treated WS plants showed a significant sustained assimilation rate when compared to the ÀAT plants which is consistent with the data of Abdullah et al (2015). Indeed, AT application shifts the nonlinear A max -to-g s correlation by sustaining A max and reducing g s (R 2 = .43).…”

Section: The Effect Of At On Mitigating Drought Damage On Osrsupporting

confidence: 92%

Modulation of Brassica napus source–sink physiology through film antitranspirant induced drought tolerance amelioration that is dependent on the stress magnitude

Faralli

Hare

Alcalde-Barrios

et al. 2017

J Agronomy Crop Science

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Increase in drought conditions during the oilseed rape (OSR) reproductive phase is predicted to occur more often in the temperate zone, leading to significant yield losses. Crop management solutions such as film antitranspirant (AT) applied at key drought-sensitive growth stages on both wheat and oilseed rape have recently been shown to alleviate drought-induced yield losses. However, there is a lack of information regarding potential AT effectiveness to reduce drought damage on OSR plants at different soil moisture regimes. Therefore, two similar experiments were performed in a computer-controlled glasshouse/phenotyping centre to investigate the physiological responses of OSR to well-watered (WW), moderate water stress (MWS), water stress (WS) and severe water stress (SWS) conditions. Stress treatments were imposed at the initiation of flowering and treated with an AT or water onto the leaf canopy. Stress limited the gas-exchange and increased leaf temperature, leaf-to-air temperature, bud-to-air temperature and ABA concentrations which increased with stress intensity in all tissues analysed. Yield components were significantly reduced by WS and SWS treatments when compared to the WW plants. Application of AT counteracted the detrimental effect of WS and SWS by decreasing water use over the first few days of stress application thus improving relative water content and leaf water-use efficiency, decreasing ABA accumulation in leaf and all the reproductive organs analysed (buds, flowers and pods) and avoiding bud-to-air temperature increases. AT application sustained pod formation and seed production under WS but only seed production under SWS conditions. These data suggest that leaf-canopy application of AT at key phenological stages under particular magnitudes of soil moisture deficit may sustain OSR reproduction and reduce yield losses. K E Y W O R D S abscisic acid, canola, film-forming, flowering, leaf and bud temperature, oilseed rape, water stress

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Section: The Effect Of At On Mitigating Drought Damage On Osrsupporting

confidence: 92%

Modulation of Brassica napus source–sink physiology through film antitranspirant induced drought tolerance amelioration that is dependent on the stress magnitude

Faralli

Hare

Alcalde-Barrios

et al. 2017

J Agronomy Crop Science

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“…The foliar spray of FA and sampling were conducted during the flowering and tassel stages in each year, resulting in increased seed setting rate and number of kernels compared with those in CK. A recent pot and field study found that the foliar antitranspirant improved kernel number 35 and pollen viability. 34 Therefore the combined use of FA and SAP was conducive to grain setting rate under low rainfall conditions.…”

Section: Gas Exchange Parameters and Wue Are Regulated By Fa And Sapmentioning

confidence: 98%

“…FA spraying at the maize tassel stage increases leaf proline activity, protects the structure and function of cell membranes and improves photosynthesis and WUE under water deficit conditions . Foliar spray of antitranspirants onto the wheat plant canopy improves pollen viability and reduces yield loss on average by 14% . A few studies show that foliar spray of antiranspirants limits plant photosynthesis under drought conditions because of reduction in stomatal conductance .…”

Section: Introductionmentioning

confidence: 99%

“…33 Foliar spray of antitranspirants onto the wheat plant canopy improves pollen viability 34 and reduces yield loss on average by 14%. 35 A few studies show that foliar spray of antiranspirants limits plant photosynthesis under drought conditions because of reduction in stomatal conductance. 36,37 This study aimed to (i) analyze whether combinations of FA and SAP could further enhance soil water status and reduce crop water consumption, (ii) identify the synthetic effects of FA and SAP on photosynthetic properties and (iii) determine the mechanisms of the increases in yield and WUE after applying the two chemicals.…”

Section: Introductionmentioning

confidence: 99%

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Foliar antitranspirant and soil superabsorbent hydrogel affect photosynthetic gas exchange and water use efficiency of maize grown under low rainfall conditions

Yang

Guo

et al. 2018

J Sci Food Agric

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“…Climate change is leading to global warming and more frequent and/or extreme drought events in many important agricultural regions globally. The impact of drought stress on crops is one of the major reasons for reduction in crop yield reduction and even crop failure, reducing yields from many crops by more than 50% [24]. Overall, the effects of drought stress include suppressed plant growth [25,26], reduced photosynthetic rates [27], and accelerated leaf senescence [28,29].…”

Section: Drought Stressmentioning

confidence: 99%

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

Wang

Song

Gong

et al. 2020

IJMS

414

207

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Jasmonic acid (JA) is an endogenous growth-regulating substance, initially identified as a stress-related hormone in higher plants. Similarly, the exogenous application of JA also has a regulatory effect on plants. Abiotic stress often causes large-scale plant damage. In this review, we focus on the JA signaling pathways in response to abiotic stresses, including cold, drought, salinity, heavy metals, and light. On the other hand, JA does not play an independent regulatory role, but works in a complex signal network with other phytohormone signaling pathways. In this review, we will discuss transcription factors and genes involved in the regulation of the JA signaling pathway in response to abiotic stress. In this process, the JAZ-MYC module plays a central role in the JA signaling pathway through integration of regulatory transcription factors and related genes. Simultaneously, JA has synergistic and antagonistic effects with abscisic acid (ABA), ethylene (ET), salicylic acid (SA), and other plant hormones in the process of resisting environmental stress.

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Film antitranspirants increase yield in drought stressed wheat plants by maintaining high grain number

Cited by 34 publications

References 41 publications

Modulation of Brassica napus source–sink physiology through film antitranspirant induced drought tolerance amelioration that is dependent on the stress magnitude

Modulation of Brassica napus source–sink physiology through film antitranspirant induced drought tolerance amelioration that is dependent on the stress magnitude

Foliar antitranspirant and soil superabsorbent hydrogel affect photosynthetic gas exchange and water use efficiency of maize grown under low rainfall conditions

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

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