Responses of eight chile peppers to saline water irrigation

Niu, Genhua; Rodriguez, Denise S.; Call, Evan; Bosland, Paul W.; Ulery, April; Acosta, Erik

doi:10.1016/j.scienta.2010.07.016

Cited by 28 publications

(22 citation statements)

References 18 publications

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“…The leaf Cl − concentrations in the same rose rootstock study ranged from 6.2 to 30 mg g −1 , in the control to EC 8, which were comparable to those found in Jatropha leaves. In our previous studies with a range of ornamental herbaceous plants and a number of peppers, the concentrations of leaf Na + were much lower than those of leaf Cl − [16,17,[19][20][21], while in the current study Jatropha leaf Na + concentrations were higher than leaf Cl − . The relatively high levels of Na + accumulated in Jatropha leaves may be responsible for the observed salt damage and growth reduction.…”

Section: Discussioncontrasting

confidence: 48%

Responses ofJatropha curcasto Salt and Drought Stresses

Niu

Rodriguez

Mendoza

et al. 2012

International Journal of Agronomy

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Two greenhouse experiments were conducted to quantify growth responses of Jatropha curcas to a range of salt and drought stresses. Typical symptoms of salinity stress such as leaf edge yellowing were observed in all elevated salinity treatments and the degree of the foliar salt damage increased with the salinity of irrigation water. Total dry weight (DW) of Jatropha plants was reduced by 30%, 30%, and 50%, respectively, when irrigated with saline solutions at electrical conductivity of 3.0, 6.0, and 9.0 dS m −1 compared to that in the control. Leaf Na + concentration was much higher than that observed in most glycophytes. Leaf Cl − concentrations were also high. In the drought stress experiment, plants were irrigated daily with nutrient solution at 100%, 70%, 50%, or 30% daily water use (DWU). Deficit irrigation reduced plant growth and leaf development. The DW of leaves, roots, and total were reduced in the 70%, 50%, and 30% DWU compared to the 100% DWU control treatment. In summary, salinity stress and deficit irrigation significantly reduced the growth and leaf development of greenhouse-grown Jatropha plants.

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Section: Discussioncontrasting

confidence: 48%

Responses ofJatropha curcasto Salt and Drought Stresses

Niu

Rodriguez

Mendoza

et al. 2012

International Journal of Agronomy

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“…in ICP 13997 than Sel 85N. Therefore, conclusion of genotypic differences observed in the present study in response to NaCl and Cd stresses depended on the intrinsic differences in rates of toxic ion uptake, transport and distribution within the plant (Niu et al 2010;Lenis et al 2011;Fatehi et al 2012).…”

Section: 05) As Determined By Dunnett's Multiple Comparison Testmentioning

confidence: 53%

Role of arbuscular mycorrhiza in arresting reactive oxygen species (ROS) and strengthening antioxidant defense in Cajanus cajan (L.) Millsp. nodules under salinity (NaCl) and cadmium (Cd) stress

Garg

Chandel

2014

Plant Growth Regul

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Application of phosphate fertilizers and biosolids enhances Cd contamination in arid and semi-arid regions. Increased concentration of dissolved chloride (Cl -) in saline solution increases Cd solubility and bioavailability. Nodules are soft targets for NaCl and Cd stresses due to adverse effects on their functioning. Arbuscular mycorrhizal (AM) fungi enhance plant growth in contaminated sites. Greenhouse experiments were conducted to evaluate the efficacy of Funneliformis mosseae in arresting toxic ion transport and ROS generation in pigeonpea nodules and its role in improving membrane structure and antioxidant defense. Two genotypes (Sel 85N; tolerant and ICP 13997; sensitive) were subjected to NaCl (4, 6 dS m -1 ) and Cd (CdCl 2 -25, 50 mg Kg -1 dry soil) treatments. Results indicated higher phytotoxicity of Cd than NaCl which aggravated when NaCl was added along with Cd. Increment in toxic ions caused injury to nodular membranes and increased oxidative stress (H 2 O 2 and MDA), higher in ICP 13997 than Sel 85N. Significant increase in non-protein thiols (NP-SH) and PC levels was observed under Cd and NaCl ? Cd treatments. The rapid generation of ROS was counteracted by AM-induced enzymatic activities (SOD, POD, CAT and GR), nonenzymatic components (GSH-GSSG cycling, their ratio and total glutathione) and glutathione-mediated PC synthesis.

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“…The detrimental impact of salinity on chile ancho plants (C. annuum 'Caballero') varies for each tissue; fruits are more sensitive than leaves and stems (Azuma et al, 2010). On the other hand, C. annuum 'NMCA10652' has shown more tolerance to salinity treatments, having a 100% survival rate and showing no significant changes in plant growth and fruit yield up to a soil electrical conductivity (EC) of 4.1 dS · m -1 (Niu et al, 2010a).…”

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confidence: 99%

Effects of Substrate Salinity and Nutrient Levels on Physiological Response, Yield, and Fruit Quality of Habanero Pepper

Urrea-López

Garza

Valiente-Banuet

2014

horts

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Although habanero peppers (Capsicum chinense, Jacq.) are highly appreciated as a result of their organoleptic and pungency properties, the crop faces edaphic stresses throughout Mexico. A study was conducted to determine how the photosynthetic parameters, vegetative growth, yield, and fruit quality of the plant change in response to suboptimal conditions in the substrate. Habanero plants were grown in an inert substrate (perlite) and exposed to increased salinity levels (4 and 7 dS·m−1) and reduced nitrogen and phosphorus conditions. Plants grown with a Hoagland-based solution were used as controls. High salinity conditions reduced the light-saturated photosynthetic rates (64% of the control) but did not compromise yield or fruit quality. This effect was possibly the result of the addition of Ca2+, which reduced salinity-induced calcium deficiency. Although comparable low nitrogen levels in previous studies were shown to cause a severe reduction in plant viability, in our study, low nitrogen reduced the light-saturated photosynthetic rates (47% of the control) and shoot:root ratio (67% of the control) but did not significantly affect yield or fruit quality. Low nitrogen and 7-dS·m−1 treatments increased fructose and glucose content (increases of 27% and 21%, respectively). Low phosphorus significantly affected plant growth and yield and reduced fructose content (73% of the control). Plants were not sensitive to low nitrogen and high salinity, possibly as a result of the use of nitrate-based fertilizers and the addition of calcium, respectively. These results provide guidelines for habanero pepper production under suboptimal edaphic conditions.

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Responses of eight chile peppers to saline water irrigation

Cited by 28 publications

References 18 publications

Responses ofJatropha curcasto Salt and Drought Stresses

Responses ofJatropha curcasto Salt and Drought Stresses

Role of arbuscular mycorrhiza in arresting reactive oxygen species (ROS) and strengthening antioxidant defense in Cajanus cajan (L.) Millsp. nodules under salinity (NaCl) and cadmium (Cd) stress

Effects of Substrate Salinity and Nutrient Levels on Physiological Response, Yield, and Fruit Quality of Habanero Pepper

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