scholarly journals Biochar Amendments Improve Licorice (Glycyrrhiza uralensis Fisch.) Growth and Nutrient Uptake under Salt Stress

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2135
Author(s):  
Dilfuza Egamberdieva ◽  
Hua Ma ◽  
Burak Alaylar ◽  
Zohreh Zoghi ◽  
Aida Kistaubayeva ◽  
...  
Keyword(s):  
Salt Stress ◽  
Nutrient Uptake ◽  
Saline Soil ◽  
Growth Parameters ◽  
Soil Enzyme ◽  
Glycyrrhiza Uralensis ◽  
Soil Conditions ◽  
Nodule Formation ◽  
Glycyrrhiza Uralensis Fisch ◽  
Beneficial Effects

Licorice (Glycyrrhiza uralensis Fisch.) is a salt and drought tolerant legume suitable for rehabilitating abandoned saline lands, especially in dry arid regions. We hypothesized that soil amended with maize-derived biochar might alleviate salt stress in licorice by improving its growth, nutrient acquisition, and root system adaptation. Experiments were designed to determine the effect of different biochar concentrations on licorice growth parameters, acquisition of C (carbon), nitrogen (N), and phosphorus (P) and on soil enzyme activities under saline and non-saline soil conditions. Pyrolysis char from maize (600 °C) was used at concentrations of 2% (B2), 4% (B4), and 6% (B6) for pot experiments. After 40 days, biochar improved the shoot and root biomass of licorice by 80 and 41% under saline soil conditions. However, B4 and B6 did not have a significant effect on shoot growth. Furthermore, increased nodule numbers of licorice grown at B4 amendment were observed under both non-saline and saline conditions. The root architectural traits, such as root length, surface area, project area, root volume, and nodulation traits, also significantly increased by biochar application at both B2 and B4. The concentrations of N and K in plant tissue increased under B2 and B4 amendments compared to the plants grown without biochar application. Moreover, the soil under saline conditions amended with biochar showed a positive effect on the activities of soil fluorescein diacetate hydrolase, proteases, and acid phosphomonoesterases. Overall, this study demonstrated the beneficial effects of maize-derived biochar on growth and nutrient uptake of licorice under saline soil conditions by improving nodule formation and root architecture, as well as soil enzyme activity.

scholarly journals Lime and foliar application of molybdenum affects nodulation, nutrient uptake and pod production in soybean grown in acid soils

2019 ◽  
Vol 13 (1) ◽  
pp. 57-65
Author(s):  
J. A. Adjetey
Keyword(s):  
Nutrient Uptake ◽  
Foliar Application ◽  
Growth Parameters ◽  
Block Design ◽  
Acid Soils ◽  
Nutrient Content ◽  
Ammonium Molybdate ◽  
Nodule Formation ◽  
Exchangeable Acidity ◽  
The University

Soil acidity is commonly ameliorated with lime while little attention is given to the application of molybdenum which is deficient in acid soils. Molybdenum is an important component of the nitrogenase enzyme essential for the symbiotic nitrogen fixing bacteria.  An experiment was conducted in a controlled environment at the University of KwaZulu-Natal to evaluate the effect of lime and molybdenum on nodulation, growth and shoot nutrient content of soybean. The experiment was a randomised complete block design with three rates of lime applied at 0, 2650 and 4280 kg ha-1 and molybdenum as ammonium molybdate at 0 and 0.5 g L-1. Lime significantly (p<0.01) increased the uptake of Ca and P but decreased that of Mn. Also, increasing lime levels positively influenced most of the important plant growth parameters measured in the study. Molybdenum application significantly increased nodule formation but did not influence the concentration and uptake of the nutrients measured. Lime application also improved soil Ca and Mg but reduced Mn and exchangeable acidity levels at the end of the study.  The treatment combination of lime at 4280 kg ha-1 and ammonium molybdate at 0.5 g L-1 gave the best result in nearly all parameters tested and it can hence be concluded that this combination improves both the nutrient uptake and nodulation of soybean grown in soil with very high acid saturation.

scholarly journals Effects of polyploidy on response ofDunaliella salinato salinity

2019 ◽  
Vol 99 (5) ◽  
pp. 1041-1047 ◽  
Author(s):  
Fatemeh Soltani Nezhad ◽  
Hakimeh Mansouri
Keyword(s):  
Antioxidant Enzymes ◽  
Salt Stress ◽  
Growth Parameters ◽  
Starch Content ◽  
Soluble Sugar ◽  
Algal Growth ◽  
Colchicine Treatment ◽  
Dry Weight ◽  
Ploidy Levels ◽  
Beneficial Effects

AbstractIn this study, polyploidy level was determined by flow cytometry analysis. The effect of polyploidy by colchicine treatment was examined on the growth parameters, malondealdehyde (MDA), as well as activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) in response to different levels of salinity inDunaliella salina. The results of algal growth indicated that 3 M NaCl was the optimal concentration of salt, since the highest enhancement in fresh and dry weight, chlorophyll and carotenoids, soluble sugar, glycerol, protein and starch content was observed in comparison to other concentrations. The amount of these metabolites declined in the concentrations under optimum salinity. The least and highest amounts of MDA were observed at 1 and 4 M NaCl respectively. Polyploidy in optimum concentration of salt, caused further increment of the above growth parameters. In relation to this, in most cases, treatment of 0.1% colchicine was most effective. The beneficial effects of polyploidy in non-optimal conditions were also found in some parameters such as biomass, chlorophyll, carotenoids, proteins and starch. Furthermore, the activity of antioxidant enzymes CAT, SOD and POD showed a positive significant correlation with salt stress and these were maximized at 4 M NaCl. Polyploidy (especially colchicine 0.1%) affected activity of these antioxidant enzymes in some concentrations of salt. Overall, our results suggest that the microalgae has significantly different responses to salt stress based on ploidy levels.

scholarly journals Silicon Improves Ion Homeostasis and Growth of Liquorice (Glycyrrhiza Uralensis Fisch. and Glycyrrhiza Inflata Bat.) Under Salt Stress by Reducing Plant Na+ Uptake

2021 ◽  
Author(s):  
Zihui Shen ◽  
Xiaozhen Pu ◽  
Shaoming Wang ◽  
Xiuxiu Dong ◽  
Xiaojiao Cheng ◽  
...  
Keyword(s):  
Salt Stress ◽  
Salt Tolerance ◽  
Foliar Application ◽  
Photosynthetic Pigment ◽  
Ion Homeostasis ◽  
Foliar Spray ◽  
Glycyrrhiza Uralensis ◽  
Ion Balance ◽  
Glycyrrhiza Uralensis Fisch ◽  
Glycyrrhiza Inflata

Abstract Silicon effectively alleviates the damage caused by salt stress in plants and can improve plant salt tolerance. However, the details of the mechanism by which silicon improves salt tolerance of liquorice are limited, and the effects of foliar application of silicon on different liquorice species under salt stress are not known. Here, the effects of foliar spray of silicon on the growth, physiological and biochemical characteristics, and ion balance of Glycyrrhiza uralensis Fisch. and Glycyrrhiza inflata Bat. were investigated. High salt stress resulted in the accumulation of a large amount of Na+, decreased photosynthetic pigment content, perturbed ion homeostasis, and eventually inhibited the both liquorice species growth. These effects were more pronounced in G. uralensis, as G. inflata is more salt tolerant than G. uralensis. Foliar spraying of silicon effectively reduced the decomposition of photosynthetic pigments, improved gas exchange parameters, and promoted photosynthesis. It also effectively inhibited lipid peroxidation and electrolyte leakage and enhanced osmotic adjustment of plants. Further, silicon application increased the K+ concentration, reduced Na+ absorption, transport and accumulation in the plants. The protective effects of silicon were more pronounced in G. uralensis than those in G. inflata. In conclusion, silicon reduces Na+ absorption, improves ion balance, and alleviates the negative effects of salt stress in the two liquorice species studied, but the effect is liquorice species-dependent. These findings may inform novel strategies for protecting liquorice plants against salt stress and also provide a theoretical basis for the evaluation of salt tolerance and the scientific cultivation of liquorice.

SALT STRESS RESPONSE OF SALT-SENSITIVE AND TOLERANT DURUM WHEAT CULTIVARS INOCULATED WITH MYCORRHIZAL FUNGI

2001 ◽  
Vol 49 (1) ◽  
pp. 25-34 ◽  
Author(s):  
G. N. Al-Karaki
Keyword(s):  
Salt Stress ◽  
Durum Wheat ◽  
Mycorrhizal Fungi ◽  
Saline Soil ◽  
Mycorrhizal Colonization ◽  
Soil Conditions ◽  
Silty Clay ◽  
Salt Stress Response ◽  
Mycorrhizal Plants ◽  
Amf Inoculation

The effects of arbuscular mycorrhizal fungi (AMF) and salt stress on growth and nutrient acquisition in two durum wheat (Triticum durum Desf.) cultivars exhibiting differences in salt tolerance were investigated. The plants were grown in a sterilized, low P (silty clay) soil-sand mix. Three salt levels were created by adding NaCl solution to the soil through irrigation water, resulting in saturation extract (ECe) values of 1.2 (control), 4.1 (medium) and 6.7 dS m –1 (high salt stress), respectively. Mycorrhizal colonization occurred whether the soil was salt stressed or non-stressed and in both cultivars, but the extent of AMF colonization was higher in the control than under saline soil conditions. The salt-tolerant cultivar Petra had higher mycorrhizal colonization than the salt-sensitive cultivar Hourani-27. The shoot dry matter (DM) yield was higher in mycorrhizal than in non-mycorrhizal plants of both cultivars. Petra had higher shoot DM but not higher root DM than Hourani-27 plants. The enhancement in shoot DM due to AMF inoculation was 22 and 21% in the control, 31 and 58% at medium, and 18 and 60% at high salinity level for Petra and Hourani-27, respectively. For both cultivars, the contents of P, K, Zn, Cu and Fe were higher in mycorrhizal than in non-mycorrhizal plants under control and medium saline soil conditions. Shoot Na concentrations were lower in mycorrhizal than in non-mycorrhizal plants grown under saline conditions. The enhancement in P, K, Zn, Cu and Fe acquisition due to AMF inoculation was more pronounced in Hourani-27 than in Petra under saline soil conditions. The results suggest that Hourani-27 tends to benefit from AMF colonization more than Petra under saline soil conditions, despite the fact that Petra roots were highly colonized with the AM fungus. It appears that Hourani-27 is more dependent on AMF symbiosis than Petra.

Sign in / Sign up

Export Citation Format

Share Document