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Improvement of Selected Morphological, Physiological, and Biochemical Parameters of Banana (Musa acuminata L.) Using potassium silicate under Drought Stress Condition Grown in vitro

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Phyton-International Journal of Experimental Botany 2023年第4期92卷 1019-1036页

作者： Hosny Abdel Aziz Mohamed Sharaf Magdy Omar Ahmed Abou El-Yazied Nada Ibrahim AlJwaizea Shaimaa Ismail Mohamed M.A.Omar Khadiga Alharbi Amr Elkelish Moataz Tawfik Department of Horticulture Faculty of AgricultureAl-Azhar UniversityCairo11651Egypt Department of Biochemistry Faculty of AgricultureAl-Azhar UniversityCairo11651Egypt Department of Biochemistry and Molecular Biology College of Marine Life SciencesOcean University of ChinaQingdao266003China Department of Agricultural Botany Faculty of AgricultureAl-Azhar UniversityNasr CityCairo11751Egypt Department of Horticulture Faculty of AgricultureAin Shams UniversityCairo11566Egypt Department of Biology College of SciencePrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia Department of Biochemistry Faculty of AgricultureAin Shams UniversityCairo11566Egypt Biology Department College of ScienceImam Mohammad ibn Saud Islamic University(IMSIU)Riyadh11623Saudi Arabia Botany Department Faculty of ScienceSuez Canal UniversityIsmailia41522Egypt Botany Department Faculty of SciencePort Said UniversityPort Said42511Egypt

Drought stress has become more common in recent years as a result of climate change impacts on the production of banana crops and other fruit *** growth and productivity of Musa spp are severely impacted by the gradual degradation of water resources and the erratic distribution pattern of annual precipitation *** aim of the work includes increased drought tolerance in light of water scarcity in the world as a result of the bananas’being gluttonous for water *** investigation was carried out from 2019 to 2020 to study the effect of potassium silicate on morphological growth and biochemical parameters of Musa acuminata L under drought stress by *** a result,drought stress reduced the morphological characteristics such as shoots number,shoot length,roots number,and survival percentage and biochemical characteristics such as chlorophyll a,b,carotenoids,stomatal status,and *** proline content increased in the leaf of *** *** complemented with K2SiO3(2 to 6 mM)either individually or in combination with PEG led to an improvement in all morphological and biochemical *** activities of CAT,POD,and PPO enzymes increased significantly compared to ***,the lowest PPO,CAT,and POD activity were ***,K2SiO3 treatments under drought stress successfully enhanced the leaf stomatal *** results suggest that K2SiO3 can help to maintain plant integrity in the tested cultivar under drought stress.

关键词： Musa acuminata L potassium silicate photosynthetic pigments stomata enzymatic activity

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Application of two forms of silicon and their impact on the postharvest and the content of bioactive compounds in cucumber(Cucumis sativus L.)fruits

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BIOCELL 2022年第11期46卷 2497-2506页

作者： YOLANDA GONZÁLEZ-GARCÍA VALERIA FLORES-ROBLES GREGORIO CADENAS-PLIEGO ADALBERTO BENAVIDES-MENDOZA MARCELINO CABRERA DE LA FUENTE ALBERTO SANDOVAL-RANGEL ANTONIO JUÁREZ-MALDONADO Departamento de Botánica Universidad Autónoma Agraria Antonio NarroSaltillo25315México Maestría en Ciencias en Horticultura Universidad Autónoma Agraria Antonio NarroSaltillo25315México Centro de Investigación en Química Aplicada Saltillo25294México Departamento de Horticultura Universidad Autónoma Agraria Antonio NarroSaltillo25315México

The metabolic activity of the fruits continues even after harvest,which results in the loss of bioactive compounds,a decrease in the quality of the fruits,softening and browning,among other negative *** use of certain elements such as silicon can improve postharvest quality,since it is involved in the metabolic,physiological and structural activity of plants,moreover can increase the quality of the *** addition,nanotechnology has had a positive impact on crop yield,nutritional value,fruit quality and can improve antioxidant *** these reasons,the use of beneficial elements such as silicon in the form of nanoparticles can be a viable option to improve the characteristics of the *** the present study was evaluated the application of potassium silicate(125,250 and 500 mg L^(−1))and SiO_(2) nanoparticles(125,250 and 500 mg L^(−1))during the development of the *** results showed that the application of silicon(potassium silicate and silicon nanoparticles)increased the content of total soluble solids(up to 15.6%higher than control),titratable acidity(up to 38.8%higher than control),vitamin C(up to 78.2%higher than control),phenols(up to 22%higher than control),flavonoids(up to 64.6%higher than control),and antioxidant activity in lipophilic compounds(up to 56.2%higher than control).This study suggests that the use of silicon can be a good option to increase the content of bioactive compounds in cucumber fruits when they are applied during the development of the crop.

关键词： Fruit quality Nanotechnology Silicon nanoparticles potassium silicate Antioxidant compounds Antioxidant capacity

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Development of Kaolin and Glass Fiber Reinforced Composites for Thermal Insulating Panels

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Open Journal of Composite Materials 2024年第1期14卷 44-59页

作者： Jagadiswar Reddy Tippi Reddy Jens Schuster Yousuf Pasha Shaik Department of Applied Logistics and Polymer Sciences University of Applied Sciences Kaiserslautern Institute for Plastics Engineering West Pfalz (IKW) Pirmasens Germany

In our modern world, where conserving energy is highly valued, thermal insulation panels play a crucial role in reducing heat transfer between two spaces, surfaces, or materials. They are used to enhance the energy efficiency of various industrial applications by minimizing heat loss and temperature control. These panels function as silent protectors, aiding in reducing energy consumption and making things more sustainable and better for the environment. This is where composite materials come in;they are known for their lightweight nature, high strength-to-weight ratio, and excellent thermal insulation properties and have gained significant attention. Researchers are actively engaged in various studies aimed at enhancing these materials further. This research project focuses on the development of kaolin and glass fiber-reinforced composites for thermally insulating panels, to which natural strengthening materials like corn husk and bamboo fibers are added. The aim is to create cost-effective and efficient composite materials for thermal insulation applications by incorporating these components with a binder consisting of potassium silicate, hydroxide, and distilled water. This project involves conducting compression tests, bending tests, impact tests, thermal conductivity measurements, and microscopic analysis to evaluate the mechanical and thermal properties of the developed composites. The profound impact of these engineered composites on thermal insulation panels stands to revolutionize energy conservation efforts, offering a potent avenue to minimize heat loss and enhance overall energy efficiency across an array of industrial sectors.

关键词： Kaolin Glass Fiber Corn Husk Bamboo potassium silicate potassium Hydroxide

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