Morpho-physiological and productive indicators of oat under the influence of nanopowders of cobalt and copper trace elements

Metal nanoparticles are used in agriculture as trace elements for agricultural plants, as growth stimulants, and pesticides. Nanodisperse metals are known to have biological, antioxidant, and enzymatic activity. The article presents the results of research on oat of the “Skakun” variety, conducted in 2014-2017 in the conditions of the Agricultural technology station of RSATU (Ryazan region). The experiment was carried out on gray forest heavy loam soil, in 3 times repetition. Its predecessor is winter wheat. In the experiment, cobalt nanopowder (NP Co) and copper nanopowder (NP Cu) were used with a purity of 99, 98%, the size of metal particles was 20-40 nm. The effect of nanopowders of cobalt and copper metals and their combinations on the productive, physiological and biochemical parameters of oat plants in production conditions is shown. The best result was observed when using the preparation with a mixture of cobalt and copper nanoparticles at a concentration of 0.5 g per average seed rate per hectare - field germination increased by 5.0%, grain yield increased by 15.3%, grain protein content - by 2.0%, fat content - by 0.5% relative to the control.

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Effects of Allochthonous Nitrogen on Some Physiological and Biochemical Parameters in Carps

Hydrobiological Journal ◽

10.1615/hydrobj.v43.i1.80 ◽

2007 ◽

Vol 43 (1) ◽

pp. 95-105

Author(s):

O. G. Zinkovskiy ◽

V. D. Solomatina ◽

A. S. Potrokhov ◽

N. A. Mogilevich

Keyword(s):

Biochemical Parameters ◽

Physiological And Biochemical

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Study of some Physiological and Biochemical parameters in female offspring born from dams treated with Dexamethasone during lactation period

International Journal of Pharmaceutical Research ◽

10.31838/ijpr/2020.sp1.122 ◽

2020 ◽

Vol 12 (sp1) ◽

Keyword(s):

Biochemical Parameters ◽

Female Offspring ◽

Lactation Period ◽

Physiological And Biochemical

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Morphological, Physiological and Biochemical Responses of Poplar Plants to Drought Stress

Journal of AgriSearch ◽

10.21921/jas.5.3.7 ◽

2018 ◽

Vol 5 (03) ◽

Author(s):

ARADHNA KUMARI ◽

IM KHAN ◽

ANIL KUMAR SINGH ◽

SANTOSH KUMAR SINGH

Keyword(s):

Water Stress ◽

Drought Stress ◽

Biochemical Parameters ◽

Sugar Content ◽

Soluble Sugar ◽

Field Capacity ◽

Drought Event ◽

Total Biomass ◽

Biochemical Responses ◽

Physiological And Biochemical

Poplar clone Kranti was selected to assess the morphological, physiological and biochemical responses under drought at different levels of water stress, as it is a common clone used to be grown in Uttarakhand for making paper and plywood. The cuttings of Populus deltoides L. (clone Kranti) were exposed to four different watering regimes (100, 75, 50 and 25% of the field capacity) and changes in physiological and biochemical parameters related with drought tolerance were recorded. Alterations in physiological (i.e. decrease in relative water content) and biochemical parameters (i.e. increase in proline and soluble sugar content and build-up of malondialdehyde by-products) occurred in all the three levels of water stress, although drought represented the major determinant. Drought treatments (75%, 50% and 25% FC) decreased plant height, radial stem diameter, harvest index, total biomass content and RWC in all the three watering regimes compared to control (100% FC). Biochemical parameters like proline, soluble sugar and MDA content increased with severity and duration of stress, which helped plants to survive under severe stress. It was analyzed that for better wood yield poplar seedlings should avail either optimum amount of water (amount nearly equal to field capacity of soil) or maximum withdrawal up to 75% of field capacity up to seedling establishment period (60 days). Furthermore, this study manifested that acclimation to drought stress is related with the rapidity, severity, and duration of the drought event of the poplar species.

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Effects of ceria nanoparticles and CeCl3 on growth, physiological and biochemical parameters of corn (Zea mays) plants grown in soil

NanoImpact ◽

10.1016/j.impact.2021.100311 ◽

2021 ◽

pp. 100311

Author(s):

Chaonan Dong ◽

Chunlei Jiao ◽

Changjian Xie ◽

Yabo Liu ◽

Wenhe Luo ◽

...

Keyword(s):

Zea Mays ◽

Biochemical Parameters ◽

Ceria Nanoparticles ◽

Physiological And Biochemical

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Evaluation of Indigenous Olive Biocontrol Rhizobacteria as Protectants against Drought and Salt Stress

Microorganisms ◽

10.3390/microorganisms9061209 ◽

2021 ◽

Vol 9 (6) ◽

pp. 1209

Author(s):

Nuria Montes-Osuna ◽

Carmen Gómez-Lama Cabanás ◽

Antonio Valverde-Corredor ◽

Garikoitz Legarda ◽

Pilar Prieto ◽

...

Keyword(s):

Salt Stress ◽

Abiotic Stresses ◽

Biochemical Parameters ◽

Biocontrol Agent ◽

Negative Effects ◽

Experimental Conditions ◽

Acds Gene ◽

Drought And Salt Stress ◽

Physiological And Biochemical

Stress caused by drought and salinity may compromise growth and productivity of olive (Olea europaea L.) tree crops. Several studies have reported the use of beneficial rhizobacteria to alleviate symptoms produced by these stresses, which is attributed in some cases to the activity of 1-aminocyclopropane-1-carboxylic acid deaminase (ACD). A collection of beneficial olive rhizobacteria was in vitro screened for ACD activity. Pseudomonas sp. PICF6 displayed this phenotype and sequencing of its genome confirmed the presence of an acdS gene. In contrast, the well-known root endophyte and biocontrol agent Pseudomonas simiae PICF7 was defective in ACD activity, even though the presence of an ACD-coding gene was earlier predicted in its genome. In this study, an unidentified deaminase was confirmed instead. Greenhouse experiments with olive ‘Picual’ plants inoculated either with PICF6 or PICF7, or co-inoculated with both strains, and subjected to drought or salt stress were carried out. Several physiological and biochemical parameters increased in stressed plants (i.e., stomatal conductance and flavonoids content), regardless of whether or not they were previously bacterized. Results showed that neither PICF6 (ACD positive) nor PICF7 (ACD negative) lessened the negative effects caused by the abiotic stresses tested, at least under our experimental conditions.

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