scholarly journals Correction to: Nano-Silicon Complexes Enhance Growth, Yield, Water Relations and Mineral Composition in Tanacetum parthenium under Water Deficit Stress

Silicon ◽  
2021 ◽  
Author(s):  
Shabnam Esmaili ◽  
Vahid Tavallali ◽  
Bahram Amiri
Keyword(s):  
Water Deficit ◽  
Mineral Composition ◽  
Water Relations ◽  
Growth Yield ◽  
Water Deficit Stress ◽  
Tanacetum Parthenium ◽  
Nano Silicon

The effect of water deficit stress on the growth, yield and composition of essential oils of parsley

2008 ◽  
Vol 115 (4) ◽  
pp. 393-397 ◽  
Author(s):  
S.A. Petropoulos ◽  
Dimitra Daferera ◽  
M.G. Polissiou ◽  
H.C. Passam
Keyword(s):  
Essential Oils ◽  
Water Deficit ◽  
Growth Yield ◽  
Water Deficit Stress ◽  
Effect Of Water

scholarly journals Water Relations of a Fragaria chiloensis and a F. virginiana Selection during and After Water Deficit Stress

1993 ◽  
Vol 118 (2) ◽  
pp. 274-279 ◽  
Author(s):  
Baolin Zhang ◽  
Douglas D. Archbold
Keyword(s):  
Water Deficit ◽  
Water Relations ◽  
Osmotic Potential ◽  
Dark Period ◽  
Water Deficit Stress ◽  
Subsequent Recovery ◽  
Fragaria Chiloensis ◽  
Relative Water ◽  
And Control ◽  
Selection Of

A comparative study was performed to elucidate changes in the water relations of Fragaria chiloensis (L.) Duch. `BSP14' (FC) and F. virginiana (L.) Duch. `NCC85-13V' (FV), grown in containers in a greenhouse, in response to imposed water deficit stress and subsequent recovery. At incipient wilting, a reduction in osmotic potential at full turgor (Ψπ100 of 0.42 MPa occurred in leaves of FC, while no change was found in FV. Leaf water potential (Ψ) isotherms revealed that as leaf Ψ and relative water content (RWC) declined, stressed FC plants maintained a higher turgor potential (ΨP) and lower osmotic potential (Ψπ) than nonstressed (control) plants, while there was no effect of drought stress on these relationships in the FV plants. From the isotherms, turgor loss was estimated to occur at a lower leaf Ψ and RWC in stressed FC plants than either in control FC plants or stressed and control FV plants. During a diurnal phase 36 hours after wilting, leaf Ψ, Ψπ and RWC of the FC selection were generally lower in stressed than in control plants, with differences ranging from 0.14 to 0.74 MPa, 0.28 to 0.47 MPa, and 1% to 8%, respectively. In the FV selection, Ψπ was 0.09 to 0.31 MPa lower in stressed than in control leaves, while the other characteristics were not affected. Leaf ΨP, of stressed FC plants was 0.09 to 0.27 MPa higher than controls during the dark period, but was similar during the day. When plants of both species were grown and stressed in the same container, FV plants wilted ≈4 days earlier than FC plants, and foliar Ψπ100 of FC was 0.35 MPa lower than that of FV at incipient wilting. The isothermal relationships between leaf Ψ and Ψπ100 indicated FC had a Ψπ100 ≈ 0.25 MPa lower than FV at a Ψ <1.5 MPa. This study provided evidence for greater osmotic adjustment in response to imposed water deficit stress in a selection of F. chiloensis than in one of F. virginiana.

scholarly journals Rootstocks and Plant Water Relations Affect Sugar Accumulation of Citrus Fruit Via Osmotic Adjustment

2004 ◽  
Vol 129 (6) ◽  
pp. 881-889 ◽  
Author(s):  
Graham H. Barry ◽  
William S. Castle ◽  
Frederick S. Davies
Keyword(s):  
Water Deficit ◽  
Water Relations ◽  
Osmotic Adjustment ◽  
Fruit Size ◽  
Soluble Solids ◽  
Water Deficit Stress ◽  
Sugar Accumulation ◽  
Plant Water Relations ◽  
Plant Water ◽  
Sucrose Hydrolysis

Citrus rootstocks have well-known effects on tree size, crop load, fruit size, and various fruit quality factors. Fruit from trees budded on invigorating rootstocks are generally larger with lower soluble solids concentration (SSC) and titratable acidity compared to fruit from trees budded on less invigorating rootstocks. Although it is unclear how rootstocks exert their influence on juice quality of Citrus L. species, plant water relations are thought to play a central role. In addition, the larger fruit size associated with invigorating rootstocks and the inverse relationship between SSC and fruit size implies that fruit borne on trees on invigorating rootstocks have lower SSC due to dilution effects in larger fruit. To determine how rootstock type affects sugar accumulation in fruit of Citrus species, controlled water-deficit stress was applied to mature `Valencia' sweet orange [C. sinensis (L.) Osb.] trees on Carrizo citrange [C. sinensis × Poncirus trifoliata (L.) Raf.] or rough lemon (C. jambhiri Lush.) rootstocks. Withholding water from the root zone of citrus trees during stage II of fruit development decreased midday stem water potential and increased the concentrations of primary osmotica, fructose and glucose. Sucrose concentration was not affected, suggesting that sucrose hydrolysis took place. Increased concentrations of sugars and SSC in fruit from moderately water-stressed trees occurred independently of fruit size and juice content. Thus, passive dehydration of juice sacs, and concentration of soluble solids, was not the primary cause of differences in sugar accumulation. Controlled water-deficit stress caused active osmotic adjustment in fruit of `Valencia' sweet orange. However, when water-deficit stress was applied later in fruit development (e.g., stage III) there was no increase in sugars or SSC. The evidence presented supports the hypothesis that differential sugar accumulation of citrus fruit from trees on rootstocks of contrasting vigor and, hence, plant water relations, is caused by differences in tree water status and the enhancement of sucrose hydrolysis into component hexose sugars resulting in osmotic adjustment. Therefore, inherent rootstock differences affecting plant water relations are proposed as a primary cause of differences in sugar accumulation and SSC among citrus rootstocks.

scholarly journals The effects of silicon and titanium on safflower (Carthamus tinctorius L.) growth under moisture deficit condition

2017 ◽  
Vol 109 (2) ◽  
pp. 443 ◽  
Author(s):  
Mohsen Janmohammadi ◽  
Nasrin Mohamadi ◽  
Fariborz SHEKARI ◽  
Amin ABBASI ◽  
Mohammad ESMAILPOUR
Keyword(s):  
Silicon Dioxide ◽  
Water Deficit ◽  
Yield Components ◽  
Seed Mass ◽  
Foliar Spray ◽  
Nano Particles ◽  
Growth And Yield ◽  
Water Deficit Stress ◽  
Nano Silicon ◽  
Semi Arid

Safflower is one of important crop in semi-arid regions of the world, where the precipitations are limited. In order to investigate the effect of foliar spray of nano-silicon dioxide (10 and 20 mM) and nano titanium dioxide (25 and 50 mM) and water-deficit stress (irrigation after 110 mm evaporation) on growth parameters and yield components of spring safflower a field experiment was carried out at the highland semi-arid region, in, North West of Iran. Water deficit stress significantly reduced morpho-physiological traits such as ground cover, canopy width, leaf fresh mass, leaf are and plant height) as well as yield components (e.g. capitulum diameter, seed mass and seed number per capitulum). However, the plants grown under water deficit condition showed the higher harvest index than well irrigated plants. Comparison of the foliar treatments showed that the both nano-particles (silicon and titanium) improved the plant growth and yield components over the control. However, the effect of nano-silicon was more prominent than titanium. The highest amount of seed oil was recorded under well irrigated condition (irrigation after 60 mm evaporation) with foliar application of nano-titanium. The percentage of palmitic acid, arachidic acid and myristic acid in seed increased by nano-titanium application. Altogether, principal component analysis indicated that spray of 10 mM nano silicon dioxide was best foliar treatments under all moisture regimes.

scholarly journals Influence of Bulk and Nanoparticles Titanium Foliar Application on some Agronomic Traits, Seed Gluten and Starch Contents of Wheat Subjected to Water Deficit Stress

2013 ◽  
Vol 41 (1) ◽  
pp. 201 ◽  
Author(s):  
Amir JABERZADEH ◽  
Payam MOAVENI ◽  
Hamid Reza TOHIDI MOGHADAM ◽  
Hossein ZAHEDI
Keyword(s):  
Titanium Dioxide ◽  
Water Deficit ◽  
Agronomic Traits ◽  
Foliar Application ◽  
Titanium Dioxide Nanoparticles ◽  
Stem Elongation ◽  
Starch Content ◽  
Growth Yield ◽  
Water Deficit Stress ◽  
Beneficial Effects

Titanium (Ti) is a very interesting chemical element, especially physiologically. Although Ti is not toxic for animals and humans, its effects on plants show remarkable concentration dependence. Whereas for plants, it shows beneficial effects on various physiological parameters at low doses. This study was conducted to evaluate the effect of bulk and nanoparticles titanium foliar. Application on some agronomic traits, seed gluten and starch contents of wheat under water deficit stress conditions during 2010-2011 growing seasons. The experimental design was randomized in complete blocks arranged in split-split plots with four replications. The factors included normal irrigation, water deficit stress (irrigation withholding at two growing stages of stem elongation and flowering), two growing stages for water deficit stress induction and titanium applications, five titanium concentrations, sources including control of titanium oxide (bulk), and three concentrations of 0.01%, 0.02%, and 0.03% of titanium dioxide nanoparticles. Plant height, ear weight, ear number, seed number, 1000-seed weight, final yield, biomass, harvest index, gluten, and starch contents were assayed. The results showed that water deficit stress caused significant decrease in plant growth, yield and yield components. In addition, among the different titanium treatments, titanium dioxide nanoparticles at 0.02% increased almost all agronomic traits including gluten and starch content. Thus, the application of titanium dioxide nanoparticles under conditions of water deficit stress is recommended.

Sign in / Sign up

Export Citation Format

Share Document