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Eggplant culture gets a particular attention in the western part of our country, being intended for it in the established vegetable basins from Arad and Timis counties considerable surfaces both in the field and in greenhouses and solariums or in other shelters made of plastic. In order to ensure the profitability of the culture on the background of the continuous increase of prices of any kind of energy (thermal, electrical, fuels, and so on) there have been many improvements in the culture technology: replacement of the natural culture substrate (soil) in greenhouses and solariums, utilizing at a large scale the drip irrigation and implicitly fertigation, introducing in culture new performant hybrids in terms of productivity and quality, the use in vegetation of some foliar bioactive products in the purpose of obtaining a better biding of flowers/setting of flowers and faster growth of fruits, to achieve a better resilience to extreme temperatures (low after planting in the field and extremely high in the summer - July, August), and so on. There was a need of increasing the photosynthetic yield of plants in order to make the most of the entire productive potential of the hybrids used in culture. This paper presents the way to solve this aspect of the culture technology. [ABSTRACT FROM AUTHOR]

Paprika bell / chilli peppers fruits are consumed upon technical or physiological maturity, fresh or processed in the preserve industry or as bell / chilli peppers paprika. Each cultivating country focused on a certain feature of the different varieties of paprika bell / chilli peppers: this resulted in cultivars adapted to local conditions and, through improvement, to hybrids that meet producers and consumers requirements. In Spain, a paprika bell / chilli pepper is cultivated on lime soils, which makes them sweet. In Hungary, they market such bell / chilli peppers paprika as: delikatess, edelsuss (sweet), halbsuss (sweety), rosen (rose), and hot. In Romania, paprika bell / chilli pepper was introduced in the 19th century by Bulgarian vegetable growers. The first paprika bell / chilli peppers crops were around Timişoara (Cenadul Mare, Tomnatic, Vizejdia, Lovrin), circa 1923. By the end of the 19th century, paprika bell / chilli peppers were cultivated all over Transylvania. The experiment developed during 2011 at the Didactic and Research Base of the Faculty of Horticulture and Forestry, from B.U.A.S.V.M. from Timişoara. The biological material used in the trials was represented by 5 cultivars (hybrids and lines) of foreign origin, i.e.: Délibáb F1 Sláger F1, Bolero F1, SJN 5 and SJD 5. To do so, we set comparative cultures after the monofactorial method with randomised blocks and 4 replicates. The highest values of the technological factors on fruit weight per plant were in the genotypes Délibáb F1, Sláger F1 and SJD 5. There was strong instability associated with a high impact of the interaction genotype x technological factors on phenotypic expression of fruit weight in the line SJN 5. [ABSTRACT FROM AUTHOR]

Obtaining good quality substrates is done by mixing some more organic and inorganic components, of which the most used, are: manure, garden soil, black or red peat and sand. Because of the biological vegetable culture concept, the comparative analyze, from the technological and economical point of view, of the substrate mixture components impact upon tomato plants' growth and development by using different organic and inorganic (volcanic tuffs) components with a high role in correcting and improving their physical-chemical features, it is imposed. By comparing the different culture substrate variants, very significant positive differences of production were obtained in variant a3 (50% manure, 10% garden soil, 10% peat, 5% sand and 25% zeolite). In absolute values the average productions per fruiting clusters varied between 0.579 kg (b7) and 1.035 kg (b4). [ABSTRACT FROM AUTHOR]