Physiological Effects of Plant Hormones in Cotton Under Drought

Pandey, Dev Mani; Goswami, C. L.; Kumar, Bhumesh

doi:10.1023/b:biop.0000041058.65442.41

Cited by 33 publications

(19 citation statements)

References 17 publications

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“…The plant hormone abscisic acid (ABA) influences numerous aspects of plant growth and development including embryo maturation, seed dormancy, fruit ripening, and water balance in response to environmental stresses (Zeevaart and Creelman 1988, Pandey et al 2003/4, Purty et al 2005. Exogenous applications of ABA accelerate the symptoms of flower senescence in carnation, rose and daylily flowers (Mayak and Halevy 1972, Mayak and Dilley 1976, Panavas et al 1998.…”

Section: Introductionmentioning

confidence: 99%

Changes in abscisic acid and flower pigments during floral senescence of petunia

Ferrante¹,

Vernieri²,

Tognoni³

et al. 2006

Biol. plant.

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The present work was focused on abscisic acid (ABA) changes in three differently coloured petunias during flower development and senescence. The ABA content was studied in correlation with changes of flower pigments and other phytohormones. The variations of anthocyanins and endogenous hormones were induced by treatments with 1 or 2 mM amino-oxyacetic acid (AOA), 50, 100 μM thidiazuron (TDZ) and 50 μM 6-benzyladenine (BA). ABA content decreased during bud development and increased during senescence. The AOA reduced the anthocyanins content and avoided ABA increase, while the cytokinins (BA and TDZ) did not significantly affected anthocyanin contents but increased ABA content. TDZ doubled the ABA content compared to the control. However, the treatments did not affected flower life, confirming the secondary role of ABA during flower senescence.

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Section: Introductionmentioning

confidence: 99%

Changes in abscisic acid and flower pigments during floral senescence of petunia

Ferrante¹,

Vernieri²,

Tognoni³

et al. 2006

Biol. plant.

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“…Similarly, exogenous ABA application has been shown to enhance drought tolerance in other herbaceous plants (e.g. Socias et al 1997, Heschel and Hausmann 2001, Xu et al 2002, Pandey et al 2003/4, Wang et al 2003. Study with woody plants also confirmed the role of ABA in drought tolerance (Li and Wang 2003, Yin et al 2005a, Zhang et al 2005.…”

mentioning

confidence: 99%

Different responses of two contrasting wheat genotypes to abscisic acid application

Zhang¹,

Wang²,

Li³

2005

Biol. plant.

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Purpose of this study was to investigate different responses of two wheat genotypes (Triticum aestivum L.) from the wet and dry climate regions to exogenous abscisic acid (ABA) application under well-watered and water-stressed conditions. Exogenous ABA was applied to the leaves by spraying and changes in dry matter accumulation and allocation, endogenous ABA content and carbon isotope ratio (δ 13 C) were monitored. The ABA application significantly decreased stem height, total biomass, total leaf area, total grain mass and leaf area/mass ratio, and significantly increased root/aboveground biomass ratio, endogenous ABA content and δ 13 C under well-watered and water-stressed conditions. Compared with the wet climate genotype, the dry climate genotype was more responsive to exogenous ABA application, resulting in lower stem height, total biomass, total leaf area, total grain mass and leaf area/mass ratio, and higher root/aboveground biomass ratio, endogenous ABA content and δ 13 C under all experimental treatments.Additional key words: dry matter accumulation and allocation, stable carbon isotope ratio, Triticum aestivum, water use efficiency.

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“…The reduction in chlorophyll concentration is identified as a drought response mechanism to minimize light absorption by chloroplasts (Pastenes et al, 2005). It can be also attributed to the sensitivity of this pigment to increasing environmental stresses, especially drought and salinity (Guerfel et al, 2009), which has been reported by other researchers (Pandey et al, 2003;Sayyari et al, 2013).…”

Section: Chlorophyll Contentmentioning

confidence: 71%

Changes in growth, chlorophyll content and grain yield of Coriander (Coriandrum sativum L.) in response to water stress, chemical and biological fertilizers and salicylic acid

Yeganehpoor

2016

Int J Adv Biol Biom Res.

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Salicylic acid (SA) is a phyto-hormone that regulates physiological and biological processes in plants and can be used to improve plant growth under different environmental conditions, including water stress. Thus, a field experiment as split plot factorial based on randomized complete blocks design with three replications was conducted in 2014 to investigate the effects of fertilizer and salicylic acid on growth, chlorophyll content and grain yield of coriander (Coriandrum sativum L.) plants under drought stress. Treatments were three levels of water supply (irrigation after 60, 90 and 120 mm evaporation from class A pan) and four levels of fertilizer application (control, 100 kg ha -1 Urea, Nitrokara (biofertilizer) and 50% Urea + Nitrokara) and foliar spray of salicylic acid (0 and 1 mM). Results indicated that water deficit had a significant reduction effect on leaf area, chlorophyll content, fresh weight of root and leaf and grain yield. Salicylic acid and 50% Urea + Nitrokara resulted in a significant increase of all traits under stress and well watering conditions. Although highest amount of studied traits was observed in plants treated with SA or application of 50% Urea and Nitrokara under well watering, but the changes rate was higher under stress conditions. Therefore, salicylic acid and combination of urea and Nitrokara can be used to promote growth of coriander under different water availabilities, which ultimately can enhance field performance of this plant.

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Physiological Effects of Plant Hormones in Cotton Under Drought

Cited by 33 publications

References 17 publications

Changes in abscisic acid and flower pigments during floral senescence of petunia

Changes in abscisic acid and flower pigments during floral senescence of petunia

Different responses of two contrasting wheat genotypes to abscisic acid application

Changes in growth, chlorophyll content and grain yield of Coriander (Coriandrum sativum L.) in response to water stress, chemical and biological fertilizers and salicylic acid

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