Differential responses in water use efficiency in two varieties of Catharanthus roseus under drought stress

Jaleel, Cheruth Abdul; Gopi, R.; Sankar, B.; Gomathinayagam, M.; Panneerselvam, R.

doi:10.1016/j.crvi.2007.11.003

Cited by 172 publications

(93 citation statements)

References 28 publications

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“…The highest reduction occurred in BARI Gom 25 and the lowest in BARI Gom 26 at all observed stages under water deficit condition. These results are in accordance with the findings of Farooq et al, 2009 andJaleel et al, 2008 that water deficit in different crop growth stages in different wheat varieties significantly decreased relative water contents.…”

Section: Fig 4 Intercepted Par Of Wheat Varieties Under Water Deficsupporting

confidence: 82%

Physiological Changes of Wheat Varieties Under Water Deficit Condition

Tasmina

Khan

Karim

et al. 2017

Bangladesh Agron. J.

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The experiment was carried out at the research field of the Department of Agronomy of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during November 2014 to March 2015 to assess and evaluate the physiological derivations of wheat varieties under water deficit condition. The experiment was laid out in a split plot design comprising two water regimes (irrigated or control and water stress) in main plot and three wheat varieties (BARI Gom 25, BARI Gom 26 and Sourav) in sub-plot with four replications. Surface irrigation was applied into the irrigated plots in total growing season but it was applied in water stress plots up to 21 days after sowing after that irrigation was stopped in water stress plots. It was revealed that studied parameters were significantly influenced by water regimes, variety and their interaction. The xylem exudation rate, light interception, SPAD value, leaf water potential, relative water content, water retention capacity was higher in irrigated condition where canopy temperature, water uptake capacity, water saturation deficit higher in water stress condition.The wheat var. BARI Gom 26 showed the highest PAR, SPAD value, leaf water potential, relative water content, water retention capacity where BARI Gom 25 exhibit lowest under water deficit condition. On the other hand, BARI Gom 25 showd the highest canopy temperature, water uptake capacity and water saturation deficit in water deficit condition. Therefore, considering the physiological performance and other characters BARI Gom 26 could be considered preferably for water shortage condition followed by Sourav where BARI Gom 25 was susceptible one.

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Section: Fig 4 Intercepted Par Of Wheat Varieties Under Water Deficsupporting

confidence: 82%

Physiological Changes of Wheat Varieties Under Water Deficit Condition

Tasmina

Khan

Karim

et al. 2017

Bangladesh Agron. J.

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“…While in S. splendens the plant height remained unaffected, the other growth parameters were similarly decreased by water stress in both species: the number of leaves and the fresh weight of the aboveground plant parts as well as the leaf surface measured in S. splendens. Similar results were obtained by Jeleel et al [14] on two cultivars of Catharanthus roseus.…”

Section: Discussionsupporting

confidence: 80%

Effects of CaCl2 solutions to alleviate drought stress effects in potted ornamentals Salvia splendens and Ageratum houstonianum

2016

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Bedding plants are often subjected to soil water deficit -either after planting and/ or during the market chain. Methods to alleviate the negative water stress effects are sought for to preserve ornamental values of plants. The aim of this study was to evaluate the response of two bedding plants, Ageratum houstonianum Mill. and Salvia splendens Sellow ex Scult., to water stress and treatments with calcium chloride aimed to alleviate drought effects. Plants were subjected either to 45 days of periodical stress (five cycles when watering was off for 5 consecutive days, followed by four cycles on for 5 consecutive days) or 10 days of radical drought (complete water withdrawal). On the first day, before the onset of drought, plants were watered with 0.5% Ca or 1% Ca w/v as a solution of calcium chloride (5 g or 10 g Ca per 1 dm 3 of the growing substrate). The similarly Ca-treated but routinely watered plants provided controls to evaluate the water shortage effects. Plant height, inflorescence length/number, leaf number, leaf area (in Salvia splendens only), aboveground plant part weight, and root weight (in Salvia splendens only) as well as leaf relative water content (RWC) were measured at the beginning and at the end of the experiments. Water withdrawal during 10 days of growth (radical drought) reduced by half RWC in leaves of withering Salvia splendens and Ageratum hous tonianum plants. Its effects on the growth parameters were less pronounced and mitigated by Ca applications. Also in the periodically stressed plants of both species, RWC and most growth parameters were reduced by water shortage but Ca applications alleviated the negative stress effects.

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“…This is supported by the reports on reduced concentration of chlorophyll and carotenoids in plant tissues (Kiani et al 2008 ) primarily due to drought-induced reactive oxygen species (ROS) production in the thylakoids (Reddy et al 2004 ). Similar reduction in chlorophyll content due to drought stress has been reported in several crop plants (Manivannan et al 2007 ;Massacci et al 2008 ;Jaleel et al 2008 ;Kiani et al 2008 ;Jain and Chattopadhyay 2010 ). A changed ratio of chlorophyll "a" and "b" and carotenoids due to water stress has also been reported by Farooq et al ( 2009 ) and Anjum et al ( 2011b ).…”

Section: Photosynthesis and Pigment Contentmentioning

confidence: 51%

“…A reduction in germination potential, hypocotyls length, and root and shoot length have been reported in several crops (Zeid and Shedeed 2006 ;Manikavelu et al 2006 ;Baloch et al 2012 ;Singh and Lata 2013 , unpublished). Water stress led to increased root growth in Helianthus (Tahir et al 2002 ) and Catharanthus (Jaleel et al 2008 ). Fresh and dry biomasses of crop plants are also greatly affected by water defi cit (Zhao et al 2006 ).…”

Section: Growth and Yieldmentioning

confidence: 98%

Drought Stress Responses and Signal Transduction in Plants

Lata

Muthamilarasan

Prasad

2015

Elucidation of Abiotic Stress Signaling in Plants

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Nature provides all necessary components for healthy growth and development of plants in the form of air, water, light, nutrients, and soil. Any imbalance in the environmental harmony may cause stress to them. Stresses encountered by plants can broadly be categorized into biotic and abiotic stresses. Biotic stresses are mainly caused by pathogens and herbivory, whereas abiotic stresses include the threat imposed by drought, salinity, and extremes of temperature, heavy metals, and pollution. Drought stress is a major cause of yield instability in crops across diverse eco-geographic regions worldwide. A variety of biochemical, molecular, and physiological changes are manifested by plants in response to drought stress. The cellular abscisic acid (ABA) concentration increases on water defi cit leading to the activation of a number of stress-responsive genes and the patterns of expression of these genes are very complex, with some genes being induced early while others respond slowly. In general, drought-responsive genes respond to salt and cold stresses as well as to exogenous ABA treatment. However, there are several genes, which express themselves in an ABA-independent manner suggesting that both ABAdependent and -independent signal transduction cascades exist for drought stress perception, response, and adaptation. Drought stress response and adaptation in plants involves an array of pathways for signal perception, transduction, gene expression and synthesis of proteins, and other stress metabolites. Droughtresponsive genes can mainly be classifi ed into two groups. First group constitutes genes whose products provide osmotolerance and protection to plants thus directly functioning in tolerance to stress, while the second group includes genes playing a role in signal transduction as well as regulation of gene expression. This chapter summarizes the complex molecular mechanisms of drought stress response and adaptation in plants, highlighting the transcriptional regulation of stress-responsive

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Differential responses in water use efficiency in two varieties of Catharanthus roseus under drought stress

Cited by 172 publications

References 28 publications

Physiological Changes of Wheat Varieties Under Water Deficit Condition

Physiological Changes of Wheat Varieties Under Water Deficit Condition

Effects of CaCl2 solutions to alleviate drought stress effects in potted ornamentals Salvia splendens and Ageratum houstonianum

Drought Stress Responses and Signal Transduction in Plants

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