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Copyright of Journal of Jilin University (Science Edition) / Jilin Daxue Xuebao (Lixue Ban) is the property of Zhongguo Xue shu qi Kan (Guang Pan Ban) Dian zi Za zhi She and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Technology Economics is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to investigate the resistance of different mature leaves to tobacco brown spot, and also the efficacy of fungicides to this disease, the resistance of leaves with different maturities (mature, proper and immature) to tobacco brown spot was measured, and proper tobacco leaves and three kinds of maturity mixed tobacco leaves (mature, proper and immature) were selected as the evaluation object of disease index, and the field efficacy of 15 kinds of fungicides (12.5% Myclobutanil ME, 325 g/L Difenoconazole Azoxystrobin SC, 57.60% Cu (OH)2 WDG, 40% Dimethachlon WP, 8% Validamycin SL, 80% Bordeaux mixture WP, 50% Kresoxim-methyl WDG, 10% Difenoconazole WDG, 12% Difenoconazole Fluzoxamides SC, 25% Azoxystrobin SC, 400 g/L Cloflurfenazole Pyraclostrobin SC, 10% Polyoxin WP, 38% Pyraclostrobin Boscalid WDG, 200 g/L Pydiflumetofen Difenoconazole SC, 80% Mancozeb WP) against tobacco brown spot were evaluated by the increase of disease index. Results showed that highest resistance to brown spot was the immature leaves at upper position, followed by the proper mature leaves in the middle, and poorest resistance was the mature leaves at down position. Fifteen kinds of fungicides showed different field efficacy on tobacco brown spot. Results of the two investigation methods were relatively consistent in the field efficacy of 12 kinds of fungicides, such as 325 g/L Difenoconazole Azoxystrobin SC, 57.60% Cu(OH), WDG. 325 g/L Difenoconazole Azoxystrobin SC (the field efficacies were 100% and 85.64% at 5 days after treatment, and 57.14% and 64.92% at 10 days after treatment), 12% Difenoconazole Fluzoxamides SC (82.81% and 87.56%, 50% and 70.82%), 25% Azoxystrobin SC (100% and 81.75%, 50% and 53.93%), 38% Pyraclostrobin Boscalid WDG (100% and 89.18%, 77.78% and 58%), 200 g/L Pydiflumetofen Difenoconazole SC (86.74% and 92.84%, 92.86% and 81.79%) had better field efficacies. And 25% Azoxystrobin SC (56.46% and 54.95%) and 200 g/L Pydiflumetofen. Difenoconazole SC (60.90% and 55.95%) still had good field efficacies after 15 days of application. Above all, the field efficacies of 325 g/L Difenoconazole Azoxystrobin SC, 12% Difenoconazole Fluzoxamides SC, 25% Azoxystrobin SC, 38% Pyraclostrobin Boscalid WDG and 200 g/L Pydiflumetofen Difenoconazole SC against tobacco brown spot were much better, they could be used in the control of tobacco brown spot. [ABSTRACT FROM AUTHOR]

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, the virulence of Bordeaux mixture against Alternaria alternata was determined, and the effects of Bordeaux mixture on phyllosphere microbial community structure and metabolic function of healthy and diseased tobacco leaves were determined by high-throughput sequencing and Biolog metabolic phenotype technology. Results showed that Bordeaux mixture had a weak inhibitory activity against A. alternata with EC50 values for inhibiting mycelial growth and spore germination of 450.19 and 757.17 mg/L, respectively. The phyllosphere bacteria in both healthy and diseased tobacco were distributed in Proteobacteria (6.93% and 39.07%) and Firmicutes (16.45% and 0.65%), and the dominant bacterial genera were Kosakonia (3.46% and 22.38%) and Pseudomonas (0.22% and 5.95%). The phyllosphere fungi in both healthy and diseased tobacco were distributed in Ascomycota (63.82% and 93.74%) and Basidiomycota (6.82% and 2.53%), and the dominant fungal genera were Alternaria (36.48% and 84.52%), Symmetrospora (5.56% and 2.27%) and Cladosporium (14.87% and 6.66%). Bordeaux mixture at 1 500 g/hm² affected the community structure and metabolic function of phyllosphere bacteria and fungi in healthy and diseased tobacco. In the bacterial and fungal communities, the relative abundances of Kosakonia, Sphinomonas, and Lactobacillus decreased, while the relative abundances of 6 bacterial genera including Pseudomonas, Ralstonia increased after 5 days of treatment. The relative abundance of 6 fungal genera including Alternaria, Symmetrospora decreased, while the relative abundance of 10 fungal genera including Didymella, Metarhizium increased after 5 days of treatment. The effects of Bordeaux mixture on phyllosphere fungi and bacteria gradually decreased after 10 and 15 days of treatment. Twenty-nine carbon sources including carbohydrates, amino acids, carboxylic acids, amphiphiles, polymers, and amine/amino compounds could be efficiently metabolized by phyllosphere microorganisms of healthy and diseased tobacco leaves, but the metabolism of α-butyric acid was weak. The metabolic inhibition activity of Bordeaux mixture on phyllosphere microorganisms decreased gradually with the increase of time. The results of the study revealed the regularity of the effect of Bordeaux mixture on the microbes of tobacco leaves after different periods of application and provided a reference for understanding the ecological benefits of the fungicide in the effective period. [ABSTRACT FROM AUTHOR]

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Central China Normal University is the property of Huazhong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Technology Economics is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)