The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The aim of the study conducted in 2012-2014 was to evaluate multi-breeding value of the tomato male-sterile lines (gene ms-10). Two (PWS 10, PWS 18) of the five tested lines showed the highest and most stable level of sterility. The good stability of sterility was also found in the two other ms-10 lines (PWS 12, PWS 21), which displayed a low number of fruits with seeds. In the case of the last tested...
The study evaluated the efficacy of Amistar 250 SC, Discus 500 WG and Score 250 EC, applied at concentrations according to their labels/instructions for use, and also reduced by 50% with the addition of one of the oils: Atpolan 80 EC, Olejan 85 EC, rape seed oil, in the protection of roses against Diplocarpon rosae. The fungicides and their mixtures with oils were used in open field conditions for...
Changes of vitamin C content in two Brussels sprout cultivars (‘Ajax F1’ and ‘Louis F1’) during 12 weeks storage have been studied. Vegetables have been stored at −1.5 °C; 0 °C; 5 °C in normal atmosphere and at temp. 0 °C in controlled atmosphere (atmosphere gas content 7% CO2 – 2% O2 and 4% CO2 – 2% O2). After 12 weeks of storage the highest amount of vitamin C have been determined in Brussels sprout...
Electrical conductivity (EC) of stem electrolyte leakage method was used for evaluation of frost hardiness of new cultivars of ornamental shrubs from the three popular in landscape taxa. Eight cultivars of Forsythia, Potentilla and Weigela were planted in the field at the beginning of 2010 in a sandy loam soil of pH 6.4. Stems for electrolyte leakage were collected in the beginning of every month...
During the autumn 2010 and 2011, at the experimental fields of the Re-search Institute of Horticulture in Skierniewice, the species composition of phy-tophagous insect, occurring on winter onion crop, was determined. Observations were conducted on five cultivars of winter onion: ‘Elody’, ‘Hi-Keeper’, ‘Labra-dor’, ‘Sibir’ and ‘Swift’. Each of the cultivars were seeded in the middle of August, in the...
Three cultivars of dill were used for the experiment: ‘Szmaragd’, ‘Ambrozja’ and ‘Herkules’. The sensory quality included analysis of fresh and dry herb of dill (drying at 38 °C). Results of two years of experiments showed that sensory quality of fresh and dry herbs of dill depends on cultivars. In 2011 the best overall quality was found for the fresh dill of ‘Szmaragd’ cultivar analysed after harvest...
In the town greenery of Skierniewice on black poplar (Populus nigra) ‘Italica’ the occurrence of two species of gall-inducing aphids was noted: Pemphigus spyrothecae and Pemphigus bursarius. About 70% of trees have been infested with these aphids. In 2012-2013, on black poplar the most abundant was P. spy-rothecae (64-78.5%), whilst the other species – P. bursarius was less numerous (20.6-35.2%)....
The observations carried out in city greenery and ornamental nurseries proved that there are six species of woolly aphids (Eriosomatidae) forming galls: on the leaf petiole – Pemphigus bursarius and Pemphigus spyrothecae; on the main nerve of leaf lamina – Pemphigus populi and P. populinigrae; on leaf lamina – Thecabius affinis and T. lysimachiae. Descriptions and photographs of galls formed by woolly...
The aim of the study was to assess the effect of the hot water treatment on storage ability of yellow fruit fresh-cut pepper ‘Sunny F1’. The usefulness of unit packaging of fresh-cut red fruit pepper ‘Yecla F1’ was also evaluated. The post-harvest hot water treatment of temperature 45-55 °C improved the hardness of fresh cut pepper ‘Sunny F1’. The best quality in cold storage and subsequent shelf...
A simple and selective method was validated for the determination of nitrates (V) and (III) by ion chromatography technique. Efficient ion separation was achieved on a column IonPacTM AG-9HC, (4 × 50 mm). A conductometric detector was used for the detection of the analyte. The mobile phase consisted of 9.0 mM sodium carbonate (Na2CO3) and was delivered in a isocratic mode at a flow rate of 1.0 ml·min-1...
In 2012 and 2013 the evaluation of the ability for the generative propaga-tion after cross-pollination of eleven Chinese cabbage and six head cabbage in-breed lines pollinated with the use of two types of insects: the red mason bee (Osmia rufa) and the house fly (Musca domestica) was performed in the isolated growth-cages placed in the field and in the greenhouse. The influence of quantity of the...
Monitoring of mineral composition of the water used for fertigation in soil-less cultivation was the aim of the study conducted in the years 2010-2014. The water samples were collected from selected water intakes located in the green-house horticultural farms. The samples were taken bimonthly from each water intake and determined for pH, conductivity (EC), bicarbonates, macro- and microelements. It...
In 2011-2013 studies of the influence of the two methods of enhancing Agaricus bisporus spawn run in the casing soil on the mushroom yield and its quality were conducted. Treatments in which casing without cacing (compost added to casing) with ruffling after 7 days of spawnrunning were compared with treatments in which cacing was added to the casing, but ruffling was omitted. The use of cacing accelerated...
Investigations were aimed at the possibility of conventional fungicides limitation in cucumber protection against powdery mildew by sorting and introducing the most effective natural products. There were examined products with different biologically active substances: biostimulators, fertilisers and products containing silicon. The effectiveness of tested products against E. cichoracearum were evaluated...
Angular leaf spot caused by bacteria Pseudomonas syringae pv. lachrymans is a very common cucumber disease, which causes serious yield losses. The objective of this study was to examine the selected cucumber lines regarding their resistance to this pathogen. Twelve cucumber lines bred at the Research Institute of Horticulture were evaluated and compared with the resistant inbred line GY 14 and the...
Experiment with pot-grown tomato ‘Admiro F1’ was carried out in 2011. Tomatoes were grown in the substrate with peat and compost soil infected with following pathogens: Pyrenochaeta lycopersici, Fusarium oxysporum f. sp. lycopersici, and Phytophthora parasitica var. parasitica. Some plants were treated with 1% of liquid potassium silicate Silvit (150 g SiO3 per 1 dm3), two times per 0.5 dm3 per plant...
Pea moth (Cydia nigricana F.) is one of the most important pea pests. To achieve high efficiency of pea moth control by chemical methods it is essential to have an information about correct date of insecticide application. The aim of the study was to determine the optimum date of insecticide application to control of pea moth occurring on pea using pheromone traps for pest monitoring. The experiment...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.