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Contaminations of industrial metals into the river possess major threat to environment. Chromium is a heavy metal which has the wide applications in tannery and electroplating industries. Above the permitted level of Chromium(VI) into surface water leads to severe health hazards. Therefore, biosorption is a technology used for the sorption of heavy metal. In this present study adsorption isotherm models was studied for the biosorption of chromium by cherry leaves. From the adsorption isotherms it was found that the experimental data fits well with the Langmuir isotherm than the Freundlich isotherm. The monolayer capacity Qm was fond to be 11.98 mg/l and the adsorption affinity was found to be positive which indicates the efficient biosorption of chromium.
Badania przeprowadzone w latach 2006-2007 w Katedrze Sadownictwa Uniwersytetu Przyrodniczego w Poznaniu na terenie RSGD w Przybrodzie. Materiałem badań były podkładki dla jabłoni M.9 oraz dla wiśni - antypka, które wysadzono do skrzyń korzeniowych (rizoboksów) o wymiarach 70 x 37 x 15 cm. Obiektem badań była podkładka M.9, którą wysadzono w skrzyniach korzeniowych. Rośliny, po 8 w każdej kombinacji sadzono wiosną 25.04.2007 i 27.04.2008 roku. W doświadczeniu wykorzystano glebę z trzech różnych sadów o zróżnicowanym stopniu zmęczenia: 1 - gleba z nowiny, 2 - gleba z sadu wiśniowego po 25 latach uprawy, 3 - gleba z sadu jabłoniowego po 30 latach uprawy. W czasie likwidacji doświadczenia dokonano następujących pomiarów: średnicy pędu głównego, długości i masy pędów, korzeni oraz szyjki korzeniowej. Otrzymane wyniki poddano analizie statystycznej określając istotność różnic na poziomie prawdopodobieństwa α = 0,05. Wybrane do badań podkładki należą do najczęściej stosowanych w produkcji sadowniczej. Przeprowadzone badania wykazały, że stanowisko glebowe miało istotny wpływ na siłę ich wzrostu, która była najlepsza na stanowisku wcześniej użytkowanym rolniczo. Najsłabiej podkładki M.9 rosły na glebie gdzie przez 30 lat uprawiano sad jabłoniowy, a antypka na glebie po starym sadzie wiśniowym. Zmiana gatunku, czyli wysadzenie podkładek jabłoni na glebie z sadu wiśniowego, a antypki na glebie z sadu jabłoniowego, nieznacznie poprawiało wzrost, ale był on istotnie słabszy niż na glebie wcześniej użytkowanej rolniczo.
Chromium is a heavy metal which has widely used in tannery and electroplating industries. Contaminations of these industrial metals into the river possess major threat to an environment. Therefore, biosorption is a technique which is applied for the sorption of heavy metal by a biomaterial. In the present study reveals that cherry leaves was used as a biomaterial and for that the thermodynamic properties was evaluated for the biosorption of chromium. From the thermodynamic studies it was found that the reaction was feasible, spontaneous and exothermic because the values of ΔG = negative, ΔS = negative and ΔH = positive. So, it was concluded that the experiment was thermodynamically feasible.
Biosorption is an attractive technology which is used for the sorption of substances by a biomaterial. In this present work the heavy metal chromium was subjected to biosorption because of their non-degradability nature and causes water and land pollution. Cherry leaves were used as a biomaterial for the biosorption. Kinetic studies were performed for the biosorption experiment. From the experiment it was found that the reaction follows pseudo first order reaction because of the larger value of regression coefficient R2 and lower value of standard errors (χ2) for pseudo first order reaction than second order reaction.
The studies were conducted in a nursery of sour cherry ‘Łutówka’ budded on Prunus mahaleb L. in the years 1993, 2000–2003, and 2013. The height of trees, the diameter of stems, and the length of lateral shoots were measured. The air temperature and precipitation higher than the long-term mean (by approximately 10 % and 28%, respectively) contributed to the increase in the stem diameter, the total length of shoots, and the number of shoots per tree. The length of lateral shoots increased from the top of the crown towards the lower parts, however, the number of feathers per tree and the mean length of shoots decreased. A strong positive relationship (r = 0.74, P < 0.05) was revealed between the stem diameter and the total length of shoots. Generally, the correlations between the type of growth of sour cherry maiden trees and morphological traits were similar to those characteristic for apple maiden trees or “knip-boom” type trees.
The aim of the study was to determine the level of commercial quality on the do­mestic fruit market in the context of minimum quality requirements which are essen­tial for allowing fruit to be traded. The source of data were surveys conducted among 470 fruit producers, 10 wholesalers and 165 retailers in the Lublin province in 2003­2006. The research showed that the awareness of the existence and the binding nature of quality standards among participants in the fruit distribution chain was unsatisfac­tory. The knowledge of relevant quality standards was also very limited. In their as­sessment of fruit quality none of the distributors took into account all the features included in the minimum requirements of the existing quality standards. Therefore, the results of the analyses did not testify to the high commercial quality of fruit on the domestic market. Preparation of fruit for sale did not meet in many cases even the minimum requirements of commercial quality standards. The widespread conviction as to the importance of quality standards in improving fruit quality was therefore not reflected on the market of the Lublin province despite the binding nature of such standards.
Cornelian cherry in Poland belongs to the alternative fruit species. The fruits are suitable for fresh consumption, however they can be used for processing: juice, jams, jellies, syrups, tinctures. Fruits are abundant in mineral elements, vitamin C, organic acids, iridoids, anthocyanins and due to that they have health-promoting significance. In this experiment, the fruit quality of several 16-year-old ecotypes in the Lublin region was compared. They were compared in terms of the beginning of fruit ripening and fruit size (length, diameter, mass), fruit shape index, share of stone in the fruit, SSC, TA, SSC/TA, reducing sugar, dry matter content and anthocyanins content. The color of fruit was evaluated in two dates, visually and using HanterLab spectrophotometer. Cornelian cherry fruits began to mature at the beginning of August and at the latest at the end of August. With the increase of the maturity degree, the SSC, reducing sugars, TA, dry matter and anthocyanins increased significantly. There was no difference in the taste of light red fruits and dark red fruits, which were characterized by similar ratio of SSC/TA. Ecotype No. 11, as the earliest maturing, with big round fruits, dark red colored with the highest content of anthocyanins, could be distinguished. As well as ecotypes No. 4 and 5, ripening in mid-August, and having a high ratio of SSC/TA, providing a good taste. Studied ecotypes could be used in breeding programs to incorporate a wide range of quality and agronomic characteristics into a final cornelian cherry cultivar.
The strength of growth of ‘Łutówka’ trees was related to the soil quality and the rootstock. Measurements of the tree trunks and the crown size showed that on fertile soil the trees grafted on Mahaleb cherry grew worse, forming by 12% thinner trunks and by over 20% (signifi cantly) smaller crowns as compared to Mazzard cherry trees. On poor sandy-loamy soil the crowns of trees grafted on Mahaleb were signifi cantly, more than 40% bigger than those on Mazzard cherry. No signifi cant differences in the yielding and productivity of trees grafted on Mahaleb and Mazzard cherry trees were found on grey brown podzolic soil. The experiment conducted on sandy-loamy soil pointed to signifi cant differences in the yielding and productivity between ‘Łutówka’ trees grafted on the studied rootstocks. The trees grafted on Mahaleb cherry in both studied years were characterized by signifi cantly greater productivity than on the other rootstocks. Signifi cantly higher yields were gathered from the trees on Mahaleb cherry than on vegetative rootstocks, and by 70% higher than on Mazzard cherry. P-HL A rootstock is of little use in the planting of ‘Łutówka’, which grown poorly on light soils. Besides poor growth and yielding, in longer dry periods the studies found the appearance of chlorosis of magnesium on older leaves, and even wilting of the leaves.
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