Agriculture and Agricultural Science Procedia最新文献_第4页

Evaluation of the Effect of Water Activity and Temperature on Lag Phase and Growth Rate of Aflatoxigenic Aspergillus Section Flavi Strains Isolated from Stored Rice Grain 水活度和温度对储藏稻谷黄曲霉产曲霉滞后期和生长速率影响的评价

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-12-25 DOI: 10.1016/j.aaspro.2016.12.007

Supunnika Somjaipeng, Panthita Ta-uea

{"title":"Evaluation of the Effect of Water Activity and Temperature on Lag Phase and Growth Rate of Aflatoxigenic Aspergillus Section Flavi Strains Isolated from Stored Rice Grain","authors":"Supunnika Somjaipeng, Panthita Ta-uea","doi":"10.1016/j.aaspro.2016.12.007","DOIUrl":"10.1016/j.aaspro.2016.12.007","url":null,"abstract":"<div><p>This study examined the effect of environmental factors water activity (a<sub>w</sub>) and temperature on lag phase prior to growth and growth rate of six aflatoxigenic fungi, <em>Aspergillus</em> section <em>Flavi</em>, strains were isolated from stored paddy rice grain in Thailand. Statistical analysis indicated that both studied stress factors significantly affected lag phases and radial growth rates at the a<sub>w</sub> and temperature regimes studied (P<0.05). Overall, the growth of each strain was similar over the 20-40°C and 0.90-0.98 a<sub>w</sub> ranges but optimal condition was found to be around 0.95 a<sub>w</sub> and 30°C. Under severe a<sub>w</sub> stress (0·90 a<sub>w</sub>) with elevated temperature (40°C), differences were observed in growth responses, with some strains unable to grow. The lag phases were significantly increased at marginal temperature and a<sub>w</sub> levels. The combined factors showed statistical interaction for growth rate (P<0.05), while there was no evidence of statistical interaction effect on the lag phases prior to growth (P>0.05). Growth rate under more freely available water conditions (>0.95 a<sub>w</sub>), the disordinal interaction was observed when strains were cultured at higher temperatures (>30°C). In contrast, growth rate with cooler temperatures at <30°C showed ordinal interaction. Growth rates were fastest at 0.95 a<sub>w</sub> and 30°C. However, this was not significantly different from that at 0.98 and 0.90 a<sub>w</sub> (P>0.05).</p></div>","PeriodicalId":100063,"journal":{"name":"Agriculture and Agricultural Science Procedia","volume":"11 ","pages":"Pages 38-45"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.aaspro.2016.12.007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73040189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

A Preliminary Study on a New Approach to Estimate Water Resource Allocation: The Net Water Footprint Applied to Animal Products 一种估算水资源分配的新方法——动物产品净水足迹的初步研究

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-02-23 DOI: 10.1016/j.aaspro.2016.02.007

Alberto Stanislao Atzori, Caterina Canalis, Ana Helena Dias Francesconi, Giuseppe Pulina

引用次数: 14

Feeding the Cities Through Urban Agriculture The Community Esteem Value 都市农业为城市提供食物——社区尊重价值

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-02-23 DOI: 10.1016/j.aaspro.2016.02.017

Saverio Miccoli , Fabrizio Finucci , Rocco Murro

引用次数: 23

The Evaluation of Rapeseed Culture at the end of the Cold Season Using Aerospace Techniques 利用航天技术评价冷季末油菜栽培效果

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-10-15 DOI: 10.1016/j.aaspro.2016.09.031

Alexandra Trif, Mihai Gîdea

{"title":"The Evaluation of Rapeseed Culture at the end of the Cold Season Using Aerospace Techniques","authors":"Alexandra Trif, Mihai Gîdea","doi":"10.1016/j.aaspro.2016.09.031","DOIUrl":"10.1016/j.aaspro.2016.09.031","url":null,"abstract":"<div><p>This paper evaluates the potential of utilization of modern technologies such as GIS instruments, remote sensing, satellite imaging, GPS technology, and drones to monitor agricultural cultures. Two zones are chosen, are cultivated with rapeseed, and suffer the effect of low temperatures during the winter. In the spring, during the vegetation period, farmers ask themselves: “Which is the degree of loss in a culture?”, “Is it worth keeping the culture?”. To answer those questions, the total affected area has to be determined, using two methods: the classic method of finding out the affected area, which uses GPS technology to gather data and GIS to process it. The other method uses satellite imaging and special software to process data. This data is then used to classify pixels and determine the total affected area. After, the results from the two methods are compared. Based on these results, the most effective method can be determined. This method can then be used for determining the affected area resulting from natural phenomena, such as drought, excessive rainfall, gale, etc. Both methods have proved useful in these kind of studies, but the GPS RTK is a more effective way of monitoring the affected area of a rapeseed culture in the end of the cold season.</p></div>","PeriodicalId":100063,"journal":{"name":"Agriculture and Agricultural Science Procedia","volume":"10 ","pages":"Pages 118-122"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.aaspro.2016.09.031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91276588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wheat Nutrition Bioeconomic Approach, Using Substituting Models of Synthetic with Natural Nitrogen 利用天然氮与合成氮替代模型的小麦营养生物经济研究

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-10-15 DOI: 10.1016/j.aaspro.2016.09.028

Mihai Berca , Valentina-Ofelia Robescu , Roxana Horoiaş , Gabriel Păscuţ

{"title":"Wheat Nutrition Bioeconomic Approach, Using Substituting Models of Synthetic with Natural Nitrogen","authors":"Mihai Berca , Valentina-Ofelia Robescu , Roxana Horoiaş , Gabriel Păscuţ","doi":"10.1016/j.aaspro.2016.09.028","DOIUrl":"10.1016/j.aaspro.2016.09.028","url":null,"abstract":"<div><p>The paper fits in the field of bioeconomy, which aims the reconciliation between environment and economy, approaching the issue of substitution, even partially, of the synthetic nitrogen with the one biologically fixed to the wheat crop. The study began 12 years ago in a farm from Southern Romania (Burnas Plain) with a surface of 1000ha. In order to avoid monoculture, it has been proposed a crop rotation system with five crops (200ha for each crop), as follows: rape – wheat – corn – sunflower – peas. The effects of avoiding monoculture have immediately appeared, especially in diminishing the diseases, pests and weeds percentage with about 38.4%. An essential part of the whole algorithm is represented by the crop nutrition, mainly by the nitrogen one for wheat, since it directly affects the yields quantity and quality. Thereby, a part of the nitrogen currently applied from bag (synthesis nitrogen) has been replaced with biological nitrogen, obtained from the input provided by using peas as preceding plant (130kg N/ha, which means an average of 26kg N/ha/year) and by the association made by wheat with the <em>Azospirillum brasilense</em> bacteria (90kg N/ha, namely an average of 18kg N/ha/year). The total amount of substituted nitrogen is 44kg N/ha/year. Doing a ratio between the biological and the synthesis nitrogen, it will appear that 46.4% of the nitrogen required by the plants for the whole crop rotation system can be supplied at no cost and without causing damages to the environment. The entire study wants to demonstrate that the transition to the conservation agriculture is a necessary step on our way to the bioeconomic agriculture and that, in order to achieve this objective, using natural models is crucial.</p></div>","PeriodicalId":100063,"journal":{"name":"Agriculture and Agricultural Science Procedia","volume":"10 ","pages":"Pages 519-524"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.aaspro.2016.09.028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74965712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

On the Development of Statistical Modeling in Plant Breeding: An Approach of Row-Column Interaction Models (RCIM) For Generalized AMMI Models with Deviance Analysis 植物育种统计建模的发展:行-列相互作用模型(RCIM)在广义AMMI模型中的应用及偏差分析

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-02-23 DOI: 10.1016/j.aaspro.2016.02.108

Alfian Futuhul Hadi , Halimatus Sa’diyah

{"title":"On the Development of Statistical Modeling in Plant Breeding: An Approach of Row-Column Interaction Models (RCIM) For Generalized AMMI Models with Deviance Analysis","authors":"Alfian Futuhul Hadi , Halimatus Sa’diyah","doi":"10.1016/j.aaspro.2016.02.108","DOIUrl":"10.1016/j.aaspro.2016.02.108","url":null,"abstract":"<div><p>Generalized AMMI (GAMMI) model has been widely used to model the Genotype × Environment Interaction (GEI) with categorical (or in general, non-normal) response variables. It was developed by introduce the concept of Generalized Linear Model (GLM) into Additive Main Effect & Multiplicative Interaction (AMMI) model. GAMMI model will provide two major results (i) the stability analysis of some genotypes across environments and (ii) determine some others that have site specific for particular environment through Biplot of Singular Value Decomposition (SVD) of the interaction terms. This research will focus on major studies on counting data that is to round up the previous work of first author's on the Row Column Interaction Models (RCIMs) for the GEI by VGAM package of an R implementation with an addition on the deviance analysis. A simple illustrative comparison of both approaches (RCIM vs. GAMMI) was conducted on Poisson counting data of 4 rows × 5 columns. The defiance analysis was provided by log-likelihood of the model and ones of the residual. Deviance analysis will provide a way to determine the complexity of interaction component in the model, named by “rank” of model. The Biplot of both approaches seem not quite different. Finally, we did show that RCIMs be relied upon to fit well the GAMMI model and then applied it in an illustrative example to a real dataset. In addition, a simple scheme of simulation, adding some outlier on Poisson count data, will show an easy way handling the over dispersion problems, but firstly, we will talk about some statistical framework of Reduce Rank Regression (RR-VGLMs), the RCIMs, and then the approach of RCIMs for GAMMI models.</p></div>","PeriodicalId":100063,"journal":{"name":"Agriculture and Agricultural Science Procedia","volume":"9 ","pages":"Pages 134-145"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.aaspro.2016.02.108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77823865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Universities’ Emerging Missions to Foster Sustainability of Rural Areas: Multiple Case Studies From The Marche Region 大学促进农村地区可持续发展的新使命:来自马尔凯地区的多个案例研究

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-02-23 DOI: 10.1016/j.aaspro.2016.02.056

Chiara Rinaldi, Alessio Cavicchi

引用次数: 5

Performance Evaluation of a Solar Cooling Plant Applied for Greenhouse Thermal Control 应用于温室热控制的太阳能冷却装置的性能评价

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-02-23 DOI: 10.1016/j.aaspro.2016.02.076

Carlo Alberto Campiotti , Gioacchino Morosinotto , Giovanni Puglisi , Evelia Schettini , Giuliano Vox

{"title":"Performance Evaluation of a Solar Cooling Plant Applied for Greenhouse Thermal Control","authors":"Carlo Alberto Campiotti , Gioacchino Morosinotto , Giovanni Puglisi , Evelia Schettini , Giuliano Vox","doi":"10.1016/j.aaspro.2016.02.076","DOIUrl":"10.1016/j.aaspro.2016.02.076","url":null,"abstract":"<div><p>The greenhouses cultivation causes in summer season inner conditions characterized by high thermal levels such as to generate problems that can damage crops. Always more frequently for this reason it is common to provide greenhouse with air conditioning plants. In this work it will be presented an application of a solar cooling plant with absorption cooling machine for thermal control of a greenhouse and an advanced simulation model able to evaluate optimal plant configurations and controls. Solar cooling systems can be applied for greenhouse climate control in regions with high values of solar irradiation as alternative to traditional evaporative systems, allowing the reduction of primary energy consumption by exploiting the contemporaneity between the cooling requirements and the solar energy availability.</p><p>The plant consists of a single effect LiBr-H2O absorption chiller fed by evacuated-tube solar collectors; the model was developed in Matlab-Simulink and is able to simulate dynamically, with time steps up to 15minutes, the greenhouse cooling demand and the production of the solar field.</p><p>Present study proposes a plant configuration with a distribution system in which the cooling power is not provided for the entire volume of the greenhouse, but only for the air volume surrounding the crop with a considerable saving of reduction of energy demand and an extremely efficient use of solar energy. The simulation study is based on the experimental data collected at the experimental center of the University of Bari, Southern Italy.</p><p>The aim of the work is to demonstrate that solar cooling system could provide significant energy-saving opportunities for cooling greenhouses allowing the reduction of primary energy consumption by exploiting the contemporaneity between the cooling requirements and the solar energy availability.</p></div>","PeriodicalId":100063,"journal":{"name":"Agriculture and Agricultural Science Procedia","volume":"8 ","pages":"Pages 664-669"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.aaspro.2016.02.076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74102222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 24

Off-grid Approach to Support the Small Scale Food Producers in Rural Areas 支持农村地区小规模粮食生产者的离网方法

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-02-23 DOI: 10.1016/j.aaspro.2016.02.061

Stefano Dell’Anna, MariaElena Menconi

{"title":"Off-grid Approach to Support the Small Scale Food Producers in Rural Areas","authors":"Stefano Dell’Anna, MariaElena Menconi","doi":"10.1016/j.aaspro.2016.02.061","DOIUrl":"10.1016/j.aaspro.2016.02.061","url":null,"abstract":"<div><p>This paper concerns a study of compact system designed to ensure energy independence of buildings located in rural areas: the Off-Grid Box - OGB. This system is an integrated device, self-contained in a container, which provides and producers essential service and resources namely, electricity, hot water, clean water for washing and irrigation and a water purification process that pasteurized/distilled wastewater. The goal of study is to experiment the adoption in agriculture of technology solutions able to satisfy the energy needs (in terms of electricity) of small scale food producers in rural areas with high environmental and landscape value and to identify a compact modular system dedicated to family farming to reduce external inputs and waste. The specific objective is to find a winning solution for self-sufficiency (in off-grid vision) and reducing emissions of the small scale family farms, useful for the sedentary, semi-sedentary and mobile production and processing units. This study is focused on the potential of OGB to guarantee the energy needs of small slaughterhouses in a rural area of Umbria Region. These scenarios are interesting for small family farms that adopt sustainable models and methods of production with low environmental impact and low energy demand to define the indications for their winning energy planning.</p></div>","PeriodicalId":100063,"journal":{"name":"Agriculture and Agricultural Science Procedia","volume":"8 ","pages":"Pages 516-526"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.aaspro.2016.02.061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86512225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Quality Perception of Fresh Berries: An Empirical Survey in the German Market 新鲜浆果的品质认知:德国市场的实证调查

Agriculture and Agricultural Science Procedia Pub Date : 2016-01-01 Epub Date: 2016-02-23 DOI: 10.1016/j.aaspro.2016.02.075

Domenico Farruggia, Marina Crescimanno, Antonino Galati, Salvatore Tinervia

引用次数: 17