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The Common Agricultural Policy (CAP) is of the character of a highly protective policy of the EU Member States. It includes a number of measures distorting the market directly and influences the farmers' incomes depending on their production. There have been two reforms of the CAP so far and the third one is prepared with intention to come into force from 2006; it is called Mid-Term Review (MTR). This reform is concentrated on keeping and increasing consumers' credibility and shifting to more competitive agriculture more orientated on market needs. The main Reform proposals include horizontal issues, i.e. Decoupling, Modulation/Degressivity, Cross-compliance, Farm Advisory System, IASC, Rural Development, and market issues concern dairy, cereals, rye, durum wheat, dried fodder, potato starch, seeds, nuts, rice, set-aside, carbon credit, beef. Besides the above mentioned goals, it is necessary to ensure conditions for rural development together with demands on environmental protection and improvement, so-called second pillar of the CAP. The attempt of cross-sectional summary and analysis of the MTR impacts for the EU was made in the article based on results of six studies performed by universities and DG AGRI in Brussels.

This article concerns shuttle migration activities of rural inhabitants and at the same time asks how this phenomenon influences social potential of rural settlements. The authors draw on the social ecology. Among its basic topics belongs spatial behavior. The authors ask about the impacts of the extent of shuttle migration and of how rural inhabitants perceive it (the object of the survey are 5 municipalities in the Central Bohemia Region) on social potential of the municipality. This potential is indicated by a cooperation of the migrants and non-migrants in the local government, especially with regards to development strategies involving transport infrastructure and public-transport services. The used method is a sociological empirical research that combines quantitative and qualitative approach and uses the appropriate techniques, such as a document study, observation, questionnaires and time-and-space mapping. Analysis of the collected data leads firstly to identification of positives and negatives of the shuttle-migration activities for the rural settlements, and secondly results in outlining empirical research of the shuttle migration in a wider spectrum of rural municipalities in regard to endogenous approach to local development.

Nine identification RAPD markers (Moravcová et al. 2003) were used to distinguish 24 clones and grapevine cultivars. No polymorphism was detected among all the tested clones of Chardonnay, Pinot gris and Zweigeltrebe from Polešovice. Pinot noir, Pinot gris, Pinot blanc and Pinot Meunier were indistinguishable within clones, they also showed the identical RAPD profile within cultivars (except discussed sample No. 26). On the other hand, Auxerrois as a relative to cultivars of Pinot group showed unique patterns and may be classified as a different cultivar. Some irregularities within the cultivars of Pinot family from Oblekovice were also found, several of them gave different results from those expected: Pinot blanc sample 26 has the RAPD profile typical of Chardonnay. A new abnormal RAPD pattern as a marker of typical Chardonnay and Pinot profiles was observed in two cases. While RAPD banding patterns could not distinguish between the known clones, they were useful for distinguishing between phenotypically similar cultivars and for assessing the origins of cultivars thought to have originated as sports.

The paper deals with the determination of the rate of damage by deer barking and browsing, the subsequent rot caused by Stereum sanguinolentum and the rate of its progress, elucidates causes of damage and quantifies volume and financial losses in the region of Forest Range Mořkov, Forest District Frenštát pod Radhoštěm. In the most damaged 2^nd age class, decay by Stereum sanguinolentum was recorded in 59% of damaged trees. The progress of rot ranged from 1 to 70 cm/year. The high number of red deer is considered to be the main reason of extensive damage by bark stripping in the Forest Range Mořkov. The actual financial loss caused by depreciation of wood by the rot is greatest in the 5^th age class amounting to CZK 64,320 per ha.

A short introduction of historical overview and current situation refer to forestry problems of the country. Local climate is characterized and impacts of natural phenomena are described, as well as the impacts of human beings. The influence of forest management is mentioned and discussed in relation to latest catastrophic floods. The territory of the Czech Republic is damaged especially by a high intensity of atmospheric precipitation abnormal values which lead to a local or regional damage. In the catchment areas of torrents, damage leads to faster soil erosion, development of ravines, landslides, moving of soil sediments and their deposition, devastation of watercourse beds and properties, flooding while the flooding rates of flow represent a danger for the life of inhabitants. Important elements and results of respective research are described in brief. E.g. research of precipitation and its relation to the runoffs in the small mountain catchment areas with the forest stands restoration, as well as the forestry-hydrologic monitoring of forest environment, which has been taking place since 1928, and tradition of the service for torrent control. Forestry-hydrologic research gradually documents that a favorable flood-control performance of forest is limited. However, this is not a reason for not taking care of flood-control measures in the mountain afforested areas. These measures and importance of forest for the protection of land are historically verified and justified. In closing the mankind behavior to the landscape is underlined as a question mark.

Farms, farmers, farm families, and even farm policies have changed in the United States and Europe over the decades since World War II. Now it is time to bring the methods of farm policy analysis and the scope of data collection up to date. Agricultural economics, by tradition an empirical discipline, can offer important insights into the design, implementation, and effectiveness of policy. To succeed in this century, though, requires an emphasis on understanding micro-economic behavior at the level of the farm household. The paper presents fundamental aspects on methodology for micro-level farm policy analysis and data requirements for application of its intruments.

The contribution is focused on an analysis of the existing forms of farming in Czech agriculture which are characterised by an economical way of farming on agricultural land. Forms, an extent and economic connection of these farming ways are included. Above all, it deals with the programs of extensive use of land in worse natural conditions, principles of organic agriculture, farming in areas with a special water regime and so on. These ways of farming have to be a part of the state agrarian policy and the connected financial participation of the state in their supporting.

Adequate product cost economic management is not possible at present without economic software application. Based on the analysis of the current state of enterprise information systems in agriculture, we define basic methods of automatic processing of economic trials and this on the enterprise management level and in-plant level. For product cost management enhancement, we recommend managerial information system application, which introduces extension of enterprise information system and allow real time cost analyse with multidimensional disintegration. We also introduce requirements that economic software suitable for information management needs should ensure.

Tree mortality was recorded in a selection orchard of maintenance breeding of cv. Bergeron LE-2 in 1993-2002. The beginning of blossoming was examined in individual trees in the same orchard in 1999-2002. Considering the effect of year, a maximum difference in the average beginning of blossoming was 10 days in the whole set of trees. The beginning of blossoming of individual trees was not identical in the same year. A difference in the onset of phenophase "beginning of blossoming" between early and late blossoming trees was 1-4 days in the particular years. The trees maintained their early or late blossoming for the whole period of evaluation. No tree died in the orchard by 1998. From 1999 to 2002 50% of early blossoming trees died and only 2.38% of late blossoming ones (average of three replications). Two thirds of early blossoming trees died during vegetation, a third died during vegetation rest. No commercially important viroses were proved to be present. It is the reason why viruses could not be a potential cause of the above-mentioned facts. The presence of phytoplasm (ESFY) was confirmed by the method NESTED PCR in one case in a randomly selected early blossoming tree. The test was negative in two randomly selected late blossoming trees from underplanting. The early beginning of blossoming did not influence productivity. Correlations between the beginning of tree blossoming and blossom abundance, or between the beginning of blossoming and productivity, were insignificant (r = 0.12 or r = -0.13). Even though the causative agent of higher mortality in early blossoming trees was not confirmed unambiguously, it is desirable to select the best individuals only from the group of late blossoming ones during maintenance breeding of cv. Bergeron. These individuals should be used as prebasic material in a certification process and as basic material after prescribed repeated testing.

The aims of this study were: 1. to determine the effect of dexiccation treatment on the physiological quality of Norway spruce (Picea abies [L.] Karst.) seedlings by measurements of electrolyte leakage from the root system; b) to test the use of hydrogl STOCKOSORB^® for protection of the root system of spruce seedlings during their transplanting. The results showed that desiccation treatment significantly affected the rate of electrolyte leakage (34% leakage for control seedlings and 53% in contrast with seedlings after 5 hours of desiccation). Likewise, significant differences were found in height and root collar increments after the first vegetation period that decreased with the duration of desiccation treatment. The values of electrolyte leakage also increased with the duration of desiccation treatment for seedlings treated with hydrogel. On the other hand, the rate of electrolyte leakage was lower after 5 hours of stress factor than in untreated seedlings. The height and root collar increments were higher in seedlings treated with hydrogel for all variants. The obtained results showed a possibility of using the measurement of electrolyte leakage from the root system to determine the physiological quality of Norway spruce seedlings. The rate of electrolyte leakage over 40% signals the physiological damage to the root system of spruce seedlings. Next, the results confirmed the need of protection of seedling roots during handling. The seedlings without hydrogel had 35% height and 26% root collar diameter increment after two-hour desiccation stress. On the other hand, the same seedlings with STOCKOSORB had 42% height and 48% root collar increment.

Numerous agricultural and associated ecological effects such as mineral nitrogen fertilising influence the yield of hop (Humulus lupulus L.) cones and its quality. Using a wide spacing of plants (in our case 2.6 × 0.8 m) we want to answer a hypothetical question about an appropriate number of test plants per plot vs. experimental plot area. The aim of this study was to compare the effect of different rates of mineral nitrogen, fertiliser combinations and their nitrogen split application on hop yield evaluated from different plot areas (micro trial: 30 plants per plot; macro trial: 320 plants per plot). Hop yield varied significantly between treatments, plot areas, years and interactions (year × treatment, plot area × treatment) (all at P £ 0.01). Cone yield in a micro trial was higher in all treatments in comparison with yield in a macro trial. In spite of common intensive fertilisation the appropriate fertilising combination and mineral N rate can influence the yield. Target nitrogen rate of160 kg mineral N/ha (at the level from 40.0 to62.5 kg nitrate N/ha in soil depth to0.3 m) and cheaper combination of calcium-ammonium nitrate (50 kg N/ha) at the beginning of vegetation plus urea (110 kg N/ha) for top dressing can be recommended. On plot areas of each size and each year all treatments showed similar trends of fertilising effect on yield. In spite of higher yield in the micro trial and lower coefficient of variation in comparison with the macro trial, the results proved that a risk of incorrect yield analysing in macro trials is very low for field experiments.

Long-term field experiments conducted under different soil and climate conditions and their databases provide invaluable information and are indispensable means in the study of the productivity and sustainability of the soil management systems. We evaluated the results of the dry matter yields of the main products obtained with four variants of organic and mineral fertilisation in three long-term field experiments established in 1955. The experiments differed in the cultivated crops. The period of evaluation was 12 and 16 years (1985-2000), respectively. The productivity of nine-year crop rotation was lower with the fertilised variants than that with the alternative growing of spring wheat and sugar beets. The dry matter yields on the Nil variants, however, were higher in the crop rotation than in the alternate sugar beet and spring wheat growing, apparently due to the symbiotic nitrogen fixation. The dry matter yields of sugar beet and mainly of spring wheat declined in almost all variants of fertilisation in the alternate sugar beet and spring wheat growing, over the evaluated time period. In spite of the relatively high dry matter production, the declining yields indicated a lower sustainability of the alternate cropping system. Both organic and mineral fertilisation increased the production of the cultivated crops. The differences in the average dry matter yields were statistically significant. Both organic and mineral fertilisation enhanced significantly the N-uptake by the cultivated crops. The effectivity of nitrogen input was the highest with the alternate cropping of sugar beet and spring wheat indicating that it was more demanding for the external N-input and thus less sustainable than nine-year crop rotation.

The objective of this study was an improvement on oat identification procedure for laboratory applications, and the comparison of albumin-globulin and avenin protein patterns in five hulled and naked oat cultivars: Abel (CZ) and Izák (CZ) - naked oats, Auron (CZ), Edmund (D) and Expander (D) - hulled oats. The last object of this study was the authenticity verification of standardly prepared meal samples with various proportions of admixture. It was confirmed that avenins, characterised under SDS-PAGE conditions, are reliable implements for the identification of oat cultivars. It was found that oat grain contains, on the basis of Osborne fractionation, another significant protein fraction - glutelins. The question of the protein fraction analysis that was used for the admixture identification stays still open. In sufficiently different cultivars, the certainty of the admixture detection in meal samples may be high. Nevertheless, in other cases (higher cultivar similarity) it will be necessary to use some other, more sensitive techniques.

In the paper are presented results of grain outer quality loss investigation during its post-harvest treatment. Objective was to determine the grain damage during its transport by bucket elevators of type "SANFON" at bucket peripheral velocity 2.0 m/s and 2.8 m/sof capacity 40 t/hand 80 t/h, respectively. The damage was investigated at counter-flow and parallel-flow bucket filling. From the measured results resulted the conclusion, that the bucket elevators tend rather to grain crushing, i.e. fraction creation than to smaller damage. On basis of partial knowledge chain elevators have no significant tendency to fraction generation, but incline considerably to the transported grain total mechanical damage at performance significantly lower than is the nominal one. In that case total mechanical damage ranged from 1.78 to 1.98%. Auger conveyers tend rather to total mechanical damage of transported grain than to the fraction creation. This is caused mainly by the friction between the transported grain and transporting "trough". Total mechanical damage is in range from 1.36 to 1.73%. Belt elevators are friendly to transported grain and therefore are evitable for grain horizontal transport in lines for reception, treatment and storage of food grain crops.

The article summarises the results of the analysis of value added (VA) in agriculture and food industry and the share of intermediate consumption in the value added. The results show that during 1993-2000, the Slovak agricultural sector (farming, hunting, forestry and fisheries), where farming is clearly dominant, together with the construction sector, reported the most significant decline in their relative contribution to the overall value added created in the national economy, whereas the contribution of market services increased. The moderate increase (1998, 1999) in the contribution of the food sector to the total value added in the national economy, as well as to industrial production (2000), has been brought to a halt and, eventually, began deflating. The tendency of declining participation of the agricultural sector in value added was also typical for the EU member states and for the CEFTA countries. Agriculture remains dominant in terms of its contribution to value added in the agri-food sector (54.5% in the year 2000). In the category of land-farming holdings, the share of intermediate consumption in value added increased (both in co-operatives and business companies, whether loss-making or profitable). The farmers in mountainous areas spent per 1 SKK of value added 0.65-1.42 SKK more of intermediate consumption than farmers in the maize production area and 0.54-1.32 SKK more than farmers in the sugar-beet production area. In the production of foodstuffs, beverages and tobacco processing, which is more demanding in terms of consumed inputs than agricultural production (the same is true for developed economies), the ratio between intermediate consumption and value added differed depending on the branch concerned. Agriculture was one of the most demanding sectors in terms of fixed asset investments necessary to generate value added. The initial decline was brought to stop in 1998 and the relative share of fixed assets (FA) in value added (VA) started to increase, particularly in the year 2000, mainly under the influence of increased support to farmers' capital investments. Although the creation of value added in agricultural co-operatives initially demanded more investments in fixed assets than it was the case in farming business companies, the difference narrowed over the time. The group of loss-making entities reported the FA/VA ratios twice as high as the group of profitable entities, which sends a signal to the former to revise the structure of their production and to improve management practices. Similarly as in the case of intermediate consumption, also the FA/VA ratio increased as the production conditions deteriorated. The ratios in the production of foodstuffs and beverages (without tobacco processing) were significantly lower than those in the farming sector. In 1999, the lowest FA/VA ratio occurred in the production of durable bakery products and the highest in the production of fruit and vegetable juices.

Agriculture is a sector in Latvia which plays an important role in the country's economy and the same time performs a significant social, environmental and ethno-cultural function. Latvia has favourable conditions for the development of organic agriculture. The aim of land reform is to reorganise legal, social and economic relationships of land property and land use to facilitate the development of infrastructure, land protection and rational land use according to the interests of society. In Latvia, the land reform is practically carried out in three directions - restitution of real estate rights, privatisation of real property and compensation for previous real estate. At the moment, the main and urgent goal concerns strengthening of the results of land reform. It means that all the information on real estates (land and buildings), uses and area of lease obtained during the previous course of land reform must be reflected into the real property cadastre.

The article brings the empiric reflection and results-based analysis of the "Programme of Rural Revival" realization in the territory of the Central Bohemia Region (NUTS II/III) in the time of regional self-governing organization in the Czech Republic. The primary interest of the authors was focused on the participation of microregions in the Programme activities, resp. on the item and object spectrum. The scope of the grant title 7 of the " Programme of Rural Revival" is assigned specifically for microregions. The successful request-analysis indicates varying spheres of activity and themes that microregions prefer in their demands for the Programme subsidy. It is, among others, observed through the interest for preparation of projects in the LEADER+ programme intention because the grant title 7 is also available for the LEADER+ preparation purposes. The preferences of microregions reflected in the requests indicate a further trend of territory-development supported activities. Unsuccessful requests analysis points towards broad relations of the Programme realization at the institutional-legislative level. Further evaluation concerned the fundamental Programme aims and their fulfilment presents the failure of agricultural undertaking in the grant requests. As the paper concludes, the authors suggest partial recommendations, in their opinion, for improving the "Programme of Rural Revival" application in the Central Bohemia Region.

Biological and chemical (fertilising, liming) amelioration are among the principal tools used to restore degraded sites. These techniques were also used on the Ore Mts. plateau on plots prepared by bulldozing. We evaluated the impact of these amelioration techniques by measuring tree species primary production and humus form restoration. Begun in 1983-1985, this project studied growth reaction of forest stands by measuring height and diameter increment, for the following species (blue spruce Picea pungens Engelm., European larch Larix decidua Mill., lodgepole pine Pinus contorta Dougl., Eastern white pine Pinus strobus L., alder Alnus incana Moench., European beech Fagus sylvatica L.) during the period 1994-2000. The growth potential by species decreases in the following order: larch, alder, lodgepole pine, white pine, blue spruce. Beech was almost exterminated by red deer browsing and the harsh climate; pines suffered heavily from browsing and bark stripping. Holorganic horizons were measured and basic soil chemical and mechanical characteristics were determined - pH, soil adsorption complex characteristics (using Kappen's methodology), content of the humus and total nitrogen, exchangeable acidity and plant available macronutrients, granulometric composition of mineral soil horizons. Our results confirmed the relatively long-lasting effects of soil amendments, as well as the amelioration effects of alder, and the relatively inhibiting effects of larch and blue spruce.

The analyses of the activity of cambium and the study of the increment of wood during one growing season of pedunculate oak (Quercus robur L.) under conditions of a floodplain forest is provided. The following parameters were studied: the beginning and end of the cambial activity, differentiation of wood fibres (libriform) and vessels and analysis of the total increment of wood during vegetation in dominant (D), co-dominant (CD) and subdominant (SD) trees in relation to ecological factors of the environment. The course of wood formation corresponds to typical growth curves which are modified by factors of the environment (mean daily temperature, precipitation, soil water supply). The rate of growth is limited by factors of the environment and under the lack of some of them it is reduced resulting in the decrease in the total production of cells. Oak is a species sensitively responding to the period of drought which is particularly manifested in wood increment in subdominant trees. Sufficient supplies of water during spring months accelerate the formation of early wood including differentiation of spring vessels as corroborated by the results. The total formation of wood is dependent not only on the characteristics of the respective growing season but particularly on the social position of trees in the stand.

Dependently on planting conditions caraway fruits contain 1-9% of essential oils consisting of about 30 compounds. Carvone and limonene account for the main portion, about 95%. To evaluate the quality of various registered caraway (Carum carvi L.) cultivars (Kepron, Prochan and Rekord) planted during 1998-2000, regarding the effect of sample grinding and preparation, plant treatment and time of harvest, the amounts of essential oil and the carvone/limonene ratio were determined. Both whole and ground caraway seeds were extracted. As obvious from the results, SFE is not suitable for the determination of essential oils in whole seeds since the results are lower in comparison with those of ground caraway. The way of grinding was also examined. Of the three mills used, a splintery mill VIPO seemed to be the most suitable. Further, the amount of essential oil was studied in caraway gathered at the beginning of maturation (sample A) and at full ripeness (sample B) of caraway seeds. It was found that the samples gathered at full ripeness (samples B) had more essential oil. It was also concluded that the use of the regulator Roundup Bioaktiv during caraway maturation to unite the ripening of achenes in the main umbel and the first-order umbels, and the use of fungicides (Alert S and Prelude 10) affected positively the amount of essential oil in caraway. Possibilities of SFE application for the essential oil determination in small samples gathered during breeding were investigated. The results were used as a one of the criteria during breeding. Classical way of the essential oil determination does not allow this option. An alternative method for the isolation and determination of essential oils - supercritical fluid extraction (SFE) - was investigated in this study.

Development of powdery mildew and leaf rust epidemics was examined on three winter wheat cultivars with different predispositions to powdery mildew in three-year experiments. The progress of powdery mildew and leaf rust on the same cultivar was conditioned by its dissimilar susceptibility to the respective disease. Fit temperature played an important role at the beginning of the particular disease and during its progress. Significant differences in the disease severity of powdery mildew and leaf rust were recorded on single leaves. Disease severity of leaf rust was higher on upper leaves while disease severity of powdery mildew was higher on lower leaves.

The structure of crop production (areas under crops, crop yields, fertilization) in 15 agricultural farms in potato-production and mountain regions of the Czech Republic was analyzed to evaluate the relations between NPK fertilization level, percentage of perennial forage crops on arable land and grain yields as the basic indicator of crop production output. A multifactor analysis based on simple regression equations indicated direct relations between the two above-mentioned factors and yield. Correlation and regression analyses demonstrated a close correlation between grain yields and percentage of perennial forage crops on arable land especially when lower nutrient rates in fertilizers were used (below 100 kg NPK.ha arable land). This relation was expressed for the whole set of initial data by the equation: Grain yield t.ha^-1 = log² (NPK rate in kg.ha^-1 arable land + X% of perennial forage crops). The coefficient of perennial forage crop effect (X) in the range of 0-1.47 can be explained by soil enrichment with nitrogen, mobilization of other nutrients, improvement of soil structure and reduction in the weed infestation of soil. The effect of perennial forage crops on grain yield increase was quantified (estimated) from the whole set of data using the above equation at X = 0 by the value +0.42 t.ha^-1. The yield increase per 1 kg NPK.ha^-1 of arable land amounts to 0.0501 t.ha^-1, i.e. every 1% of forage crops on arable land increases the grain yield by 0.023 t.ha^-1 within the set. The relation between actual and theoretical yield of the whole set is demonstrated by correlation coefficient (r = 0.9332) if the effect of perennial forage crops is estimated by coefficient X = 0.95, if the effect is estimated by coefficient X = 1.47, the correlation coefficient is even higher (r = 0.9977).

The paper analyses the economic and policy gap between the agriculture in Slovakia and the EU member states from the perspective of the future accession of this country to the Union. As it concludes, the deterioration of terms of trade during the transition period creates also problems for the accession negotiations, because this fact seems to legitimate the equitable implementation of the CAP in all member countries after the East-enlargement of the Union. The paper is arguing, on the basis of income simulation, that that the Commission proposal on reduced direct payments for the newly admitted countries would, in case of Slovakia, generate an improvement of the sectoral income only if they are topped by rural development measures.

The aim of the experiment in test station was to evaluate productive performance with respect to feeding-technologies through the test for LWs × (LW×L) genotype in pigs. The productive performance as growth capacity, feeding intake and quantitative traits of slaughter value was examined for 144 hybrid pigs divided in two identical groups, where the 1st group was fed ad-libitum and the 2nd one semi-ad-libitum. On the base of profit formula, the ad-libitum system of feeding in pigs is better in all economic features.

This paper introduces partial results of the research project QC 1140 aimed at the efficiency of enterprises operating in the system of organic farming, especially considering the use of grassland linked with cattle management. Economic evaluation of cattle management in the system of organic farming is compared with conventional enterprises. Economic evaluation applies to dairy cattle and beef cattle. Proposals of the measures will be formed with respect to the results of analysys, which should contribute to the support of organic enterprises and to better satisfaction of the increasing demand for organic food.

The basic principle of the economic reform of state forests of the CzechRepublic after 1990 was to separate ma­nagement in forests from the implementation of production activities. A state enterprise Forests of the Czech Republic with its headquarters in Hradec Králové was charged to manage state forests. From the former 7 enterprises of state forests 78 joint-stock companies have been established that carry out silvicultural and logging activities in state forests and in forests of other owners under the conditions of competition environment and on the basis of contracts. The paper deals with the exact evaluation of partial and present results of the development of forestry economic reform, aimed at the study of the behaviour of transformed and privatised forest joint-stock companies.

Yellowing of Norway spruce is a relatively common problem in many regions of the Czech Republic. At some places, it is also connected with forest decline. This unfavourable phenomenon is initiated by several ecological as well as anthropogenic processes. One of the most important is the imbalance of forest stand nutrition. Particular reasons lead to nutrient deficiency, especially deficiency of magnesium. Solution to this undesirable trend is a profound ecological analysis and cause-oriented treatments. Besides decreasing air pollution impacts, fertilisation with deficient nutrients represents a successful treatment in the forest stand management in affected areas. In the area of interest, application of relatively small amounts of appropriate fertiliser (SILVAMIX Mg) led to considerable improvement in the defoliation dynamics and yellowing progress since the first year after application.