RESUMO
Recently exposure of olive trees to many stresses particularly oil varieties led to decline in the olive yield. The target of the study is to improve vegetative growth and increase olive fruits quality as well as the fruit oil % and oil quality by applying chitosan nanoparticles (CHNPs) and N-acetyl thiazolidine 4-carboxylic acid (N-ATCA) under the conditions of Egypt. The experiment was carried out in the seasons of 2021 and 2022 on Arbosana olive trees 8 years old and 4×6 m apart the trees sprayed three times on 15th Sept., 1st Oct. and 15th Oct. with (CHNPs at 500, 1000 and 1500 ppm), (N-ATCA at 50, 100 and 150 ppm) and a combination between them and evaluate the vegetative growth of trees, fruit physiochemical characteristics, and oil properties during both study seasons. The application of CHNPs and N-ATCA and a combination of them led to increasing leaf area, total chlorophyll and proline content also increment fruit weight, flesh weight, oil color and oil % moreover improving the quality of produced oil. The improvement in growth, fruit quality, oil % and oil quality, were associated with increasing concentrations of CHNPs, N-ATCA and a combination of them especially (CHNPs at 1500 ppm + N-ATCA at 100 ppm and CHNPs at 1500 ppm + N-ATCA at 150 ppm). Spraying (CHNPs at 1500 ppm + N-ATCA at 150 ppm) is recommended to improve the tree growth, fruit quality, oil % and quality of Arbosana olive.
Assuntos
Quitosana , Nanopartículas , Olea , Frutas , Tiazolidinas , Árvores , Ácidos CarboxílicosRESUMO
Two serological test, double agar gel diffusion test (DD5T) and indirect haemagglutination test (IHAT) were performed for diagnosis of hydatid disease. Correlation of their results with eosinophilia were also made. DD5T gave higher sensitivity (100%) than IHAT which gave 95%. Out of the serologically positive patients, only 50% had eosinophilia. Sheep hydatid antigen was more potent than camel antigen. The supernatant lyophilized sheep antigen was the best antigen used.
