Acta Horticulturae et Regiotectuare最新文献_第3页

Influence of Ecological and Integrated Management of Farming on Biodiversity of Basic Epigeic Group 农业生态综合管理对基本表观类群生物多样性的影响

Acta Horticulturae et Regiotectuare Pub Date : 2014-05-01 DOI: 10.2478/ahr-2014-0005

J. Porhajašová, Helena Šebová, Eduard Pintér

引用次数: 0

Evaluation of Population Regulation of Invasive Species Fallopia × Bohemica by Repeated Mowing 反复刈割对入侵物种波西米亚落叶的种群调控效果评价

Acta Horticulturae et Regiotectuare Pub Date : 2014-05-01 DOI: 10.2478/ahr-2014-0004

L. Končeková, Helena Šebová, Eduard Pintér

引用次数: 1

The Adaptive Ability of Cornus Stolonifera Michx. ´Kelseyi´ in Changing Environment 山茱萸的适应能力研究。“Kelseyi”在变化的环境中

Acta Horticulturae et Regiotectuare Pub Date : 1900-01-01 DOI: 10.2478/ahr-2014-0006

Daniela Bartošová Krajčovičová, Viera Šajbidorová

{"title":"The Adaptive Ability of Cornus Stolonifera Michx. ´Kelseyi´ in Changing Environment","authors":"Daniela Bartošová Krajčovičová, Viera Šajbidorová","doi":"10.2478/ahr-2014-0006","DOIUrl":"https://doi.org/10.2478/ahr-2014-0006","url":null,"abstract":"Abstract Water represents one of the limiting environmental factors having impact on all the processes in plants. Water stress is considered as the most significant cause of photosynthesis defects. Measuring fluorescence of chlorophyll a is one of the methods revealing defects in the photosynthetic aparatus. The examination has been carried out on the plants Cornus stolonifera Michx. ´KELSEYI´ cultivated in two different irrigation regimes (a regime with 40% substrate saturation and a controlling regime with 60% substrate saturation). We have used a fluorometer HANSATECH FMS 1 to measure modulated fluorescence of chlorophyll a. A three-week period of measurement was set between June and August during two years of experiments (2011 and 2012). The selected chlorophyll fluorescence parameters Fv /Fm - maximum quantum efficiency of PSII; ΦPSII - effective quantum yield of PSII; Rfd - chlorophyll fluorescence decrease ratio and NPQ - non-photochemical chlorophyll fluorescence quenching, proved to be insensitive to given water deficit. Cornus stolonifera Michx. ´KELSEY´ appears to be a woody plant capable of water efficiency.","PeriodicalId":247321,"journal":{"name":"Acta Horticulturae et Regiotectuare","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122309342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evaluation Of Exchange Reaction In Soil In Sediments Of A Region Affected By Anthropogenic Activity In Relation To The Time And To The Selected Potentially Toxic Elements 受人类活动影响地区沉积物中土壤交换反应与时间和所选潜在有毒元素的关系评价

Acta Horticulturae et Regiotectuare Pub Date : 1900-01-01 DOI: 10.1515/ahr-2015-0007

J. Urminská, B. Václav, P. Ondrisik

{"title":"Evaluation Of Exchange Reaction In Soil In Sediments Of A Region Affected By Anthropogenic Activity In Relation To The Time And To The Selected Potentially Toxic Elements","authors":"J. Urminská, B. Václav, P. Ondrisik","doi":"10.1515/ahr-2015-0007","DOIUrl":"https://doi.org/10.1515/ahr-2015-0007","url":null,"abstract":"Abstract The aim of this study was to analyse sediments of the selected water reservoirs of Piargs group. Secondly, our purpose was to determine values of exchange reactions in soil of these sediments during the period from 2001 to 2010 and to evaluate environmental hazards caused by the selected potentially toxic elements affected by pH. Based on the results gained by analysis we aim to determine the correlation and statistical significance of dependencies of the analysed environmental parameters. Two different methods, the flow electrochemical method and the atomic absorption spectrometric method have been used to analyse the content of potentially toxic chemical elements in leachate. The analysis of leachate samples, in order to find out the values of exchange reactions in soil, was carried out by potentiometry. Ascertained values of exchange reactions in soil ranged from 5.6 to 7.2. According to the calculated indices of dependencies, the development of pH/KCl values can be evaluated as moderately dynamic. The calculated indices of the Spearman‘s correlation coefficient for exchange reactions in soil demonstrate statistically significant dependence, especially for zinc and cadmium.","PeriodicalId":247321,"journal":{"name":"Acta Horticulturae et Regiotectuare","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131562493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3