scholarly journals Uncovering the multi-level response of Glycine max L. to the application of allelopathic biostimulant from Levisticum officinale Koch

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Agnieszka Szparaga ◽  
Sławomir Kocira ◽  
Pavol Findura ◽  
Ireneusz Kapusta ◽  
Grzegorz Zaguła ◽  
...  

AbstractThe interest expressed by the agriculture in the category of innovative biostimulants is due to the intensive search for natural preparations. Our study is the first ever to report a complex approach to the use of allelopathic extracts from Levisticum officinale Koch. roots in soybean cultivation, includes analyses of morphological observations, and analyses of biochemical indicators. Hot method of aqueous extraction was applied. The extracts were administered via foliar application and soil treatment. Lovage extracts had high contents of polyphenolic compounds and rich micro- and macroelemental composition. The infusions did not contain gibberellic acid and indole-3-acetic acid but the abscisic acid and saccharose, glucose, and fructose were found. The extracts modified soybean plant physiology, as manifested by changes in biometric traits. Plants responded positively by increased yield. Seeds from the treated plants had higher contents of micro- and macroelements, as well as total concentrations of lipids (with a slight decrease in protein content). In addition, they featured changes in their amino acid profile and fatty acid composition. The application of allelopathic biostimulant caused increased concentrations of isoflavones and saponins. The natural biostimulants from Levisticum officinale may become a valuable tool in the sustainable agriculture.

2021 ◽  
Author(s):  
Agnieszka Szparaga ◽  
Sławomir Kocira ◽  
Pavol Findura ◽  
Ireneusz Kapusta ◽  
Grzegorz Zaguła ◽  
...  

Abstract The interest expressed by the agriculture in the category of innovative biostimulants is due to the intensive search for natural preparations. Our study is the first ever to report a complex approach to the use of allelopathic extracts from Levisticum officinale Koch. roots in soybean cultivation, includes analyses of morphological observations, and analyses of biochemical indicators. Hot method of aqueous extraction was applied. The extracts were administered via foliar application and soil treatment. Lovage extracts had high contents of polyphenolic compounds and rich micro- and macroelemental composition. The infusions did not contain gibberellic acid and indole-3-acetic acid but the abscisic acid and saccharose, glucose, and fructose were found. The extracts modified soybean plant physiology, as manifested by changes in biometric traits. Plants responded positively by increased yield. Seeds from the treated plants had higher contents of micro- and macroelements, as well as total concentrations of lipids (with a slight decrease in protein content). In addition, they featured changes in their amino acid profile and fatty acid composition. The application of allelopathic biostimulant caused increased concentrations of isoflavones and saponins. The natural biostimulants from Levisticum officinale may become a valuable tool in the sustainable agriculture.


2016 ◽  
Vol 1 (1) ◽  
pp. 90-100
Author(s):  
Mia Herisva ◽  
Taufan Hidayat ◽  
Zaitun Zaitun

Abstract. Soybean needs national until now as still filled with than the import value that production in the country not enough. In solve the problems the low rate production soybean required production techniques of technology and awareness nice about the cultivation of plants soybean , the expansion of the increase , fix the quality , the environment and the use of varieties superior. Efforts to improving production soybean bounded by the limited by land ownership because some rice-fields productive have changed to a non farming. Behind the limited resources land for the expansion of the acreage of a farm, there are land potential to to use, namely land under kanofi plantation crops. The purpose of this study is to find the impact of shade and varieties and interaction between them to growth and the production of the soybean plant. Design experiments used in this research is a swath separate ( RPT) with two factors treatment. The research results show that treatment shade very had have real impact on some parameters that observed , on the parameter tall plant , diameter of the stem , flowering age , age harvest , the number of pods total , the number of pods pithy , heavy seeds 100 points and potential the results , the best result in find in treatment nuangan 60 % . Varieties influential very real to pertumbuhandan production the soybean plant, based on the results of observation tall plant, diameter of the stem, flowering age, the use of varieties anjasmoro showed growth and best in compared with varieties ringing. There are the interaction that very real between shade and varietas.kombinasi that tends to both in find in varieties anjasmoro but shade 60 %


Author(s):  
Alex G. Alexander

Indole-3-acetic acid, 2,4-dichlorophenoxyacetic acid, and maleic hydrazide were applied as foliar sprays to 10-week-old sugarcane plants during initial studies of the interrelationships of growth-regulating materials with the sugar-metabolizing enzymes of sugarcane. Leaf samples were harvested at 1, 3, 9, and 27 days following treatment for sugar and enzyme assays. Sugar analyses were run for total ketoses, sucrose, fructose, and total reducing sugars, with glucose being determined by calculation. A series of acid phosphatase assays were conducted using as substrates the following compounds: ß-glycerophosphate, adenosinetriphosphate, uridine diphosphate glucose, glucose-1-phosphate, glucose-6-phosphate, fructose-6- phosphate, fructose-1,6-diphosphate, and 3-phosphoglyceric acid. Additional enzymes included invertase, amylase, hexokinase, phosphohexose isomerase, aldolase, triosephosphate dehydrogenase, phosphoglyceryl kinase, condensing enzyme, isocitric acid dehydrogenase, transaminase, peroxidase, and glucose oxidase. All enzyme preparations consisted of dialyzed water-soluble protein extracted from freeze-dried leaf tissue and precipitated with ammonium sulfate between 35 and 95 percent of saturation.


2020 ◽  
Vol 86 (1) ◽  
pp. 61-68
Author(s):  
T.G. Krivonis

Cancer cause significant shifts in the mental functioning of patients, manifested in psychological reactions and mental disorders. It determines the need for the development and implementation of medicalpsychological measures. Various aspects of medical and psychological care in oncological practice are analyzed. In work with cancer patients use various psychotherapeutic methods, such as short-term psychoanalysis, cognitive-behavioral therapy, relaxation, art-therapy, music therapy, creative visualization. Psychological help in oncology provided in the form of individual counseling, support groups, family psychotherapy, psychological counseling for couples. Based on the general principles of medicalpsychological help in oncology, were developed different support programs depending on the stage of the treatment, specificity of antitumor therapy, and location of the disease. Psychogenic and somatogenic effects of cancer caused the need to add psychopharmacotherapy in treatment. Cancer causes complex, multi-level disorders in the mental health of patients requiring an integrated complex approach in the form of medical-psychological interventions and psychophamiacotherapy. Keywords: medical-psychological help, psychotherapy, oncology, psycho-oncology, psychopharmacotherapy.


Author(s):  
Amir Hossein Baghaie

Introduction: Soil remediation is one of the most important fields in environmental studies. This study was conducted to investigate the effect of indole-3-acetic acid (IAA) and humic acid (HA) on increasing the bio-degradation of diesel oil in soil polluted with (lead) Pb and cadmium (Cd). Materials and Methods: Treatments included foliar application of IAA (0 (control) and 30 ppm) and soil application of HA (0 (control) and 200 mg/kg soil) in the soil contaminated with Cd (0 (control), 10 and 15 mg/kg soil), Pb (0 (control) and 1600 mg/kg soil), and diesel oil (0 (control), and 8% (W/W)). The sunflower was planted in all soil samples. The plants were harvested after 70 days and Pb and Cd concentrations of plants were measured using Atomic Absorption Spectroscopy. Results: Foliar application of IAA at the rate of 30 mg/l significantly increased the Cd and Pb phytoremediation by 14.8% and 13.4%, respectively. For HA application, it was increased by 11.3% and 10.2%, respectively.  A significant increase was found in degradation percentage of diesel oil in soil by 12.6%, when the soil was treated with 200 mg HA/kg soil. Conclusion: It can be concluded that application of organic amendments such as IAA or HA can be a suitable way for increasing plant growth and increasing plant phytoremediation efficiency, especially in the soil contaminated with diesel oil. However, the phytoremediation efficiency is dependent on the plant physiology and the type of soil pollution that should be considered.


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