CAPITALIZING OF THE SANDY SOILS FROM SOUTHERN OLTENIA THROUGH CULTIVATION OF NEW VARIETIES OF TRITICALE

The knowledge the biological particularities of the plant and response of new varieties developed to environmental conditions, is an important prerequisite for the starting promote a certain species of plants in the structure of crops from a given area. In this regard, triticale crop is a requirement of the current agriculture, which consists in exploitation of less productive areas for wheat and maize, areas affected by drought and poor in nutrients as it is the sandy soils. Research results obtained from 10 triticale varieties, studied during 2013-2015 under the conditions of the sandy soil to CCDCPN Dabuleni emphasizes the realization of production in the range of 3497 to 4129.3 kg / ha. Were evidenced by production of more than 4000 kg / ha, to the Oda and Rotric genotypes, which have registered the thousand grain weight (TGW) of 45.75 to 47.55 g. In triticale production quality, namely the percentage of protein and gluten, it was influenced by both the variety and the climatic conditions of the year. Were observed at values higher of the protein content registered in 2013, which was a dry year, compared with that obtained in 201

TRITICALE, ALTERNATIVE PLANT TO WHEAT CROPS ON SANDY SOILS IN ROMANIA

The recent climate changes have determined agricultural drought in the sandy soils with negative implications on plant growth and development. In this context during 2009-2011 were experienced in RDCFCSS Dabuleni every 12 genotypes of wheat and triticale in purpose recommendation a straw cereals in crop rotations on sandy soils. The results obtained show that triticale manifest better tolerance to drought, recording higher values of bound water with 0.64% and 0.55% of cellular juice concentration compared to wheat.Mean standard deviation, obtained production in wheat varieties (σ = 371 kg / ha) and triticale (σ = 130 kg / ha) emphasizes best stability in the behavior of triticale varieties.Compared with wheat, triticale has registered an increase in production of 1033.9 kg / ha and a profit rate of between 25.03 to 52.59% ,(profit rate of wheat genotypes was between -9.72% and 19.5%)

RESEARCH ON THEEVALUATION OFQUALITYCHARACTERISTICSIN SOME SORGHUM GENOTYPES UNDER THE CONDITIONSSANDY SOILSFROM SOUTHERNOLTENIA

The present paper aims at the behavior of some sorghum genotypes in terms of adaptability to the climatic conditions specific to the sandy soils areas in southern Oltenia, manifested during the testing of the production capacity and its quality.The quality of grains at  sorghum specie   is strongly influenced by the genotype, the technology of culture and climatic conditions during the experimentation period.The best results were obtained from the hybrids: Es Mousson (75.6 kg / hl hectolitric mass, 31.5 g  mass of one thousand grains, 7.4% moisture, 20.5% protein, 10.8% fats), Elan (74.8 kg / hl hectolitric mass, 28.8 g  weight of one thousand grains (WTG), 5.2% moisture, 19.2% protein, 8.9% fats) and Es Alize (72.4 kg / hl hectolitric mass, 23.9 mass of one thousand grains, 7.8% moisture, 18.3% protein, 8.4% fats). The highest yields were obtained from hybrids Es Shamal (9646kg / ha) and Es Foehn (9421kg / ha)

The algorithm for going through a labyrinth by an autonomous

The paper presents an algorithm for going through a path type labyrinth by an autonomous vehicle. The detection of the path and the maintaining of the motion direction have been addressed as well as going through the labyrinth on road segments and the categories of crossings in the said labyrinth. The algorithm has been implemented in C++ and validated in an experimental model that has totally confirmed its correctness

Synthesis and X-ray structure of a new pyrrolo[1,2-b]-pyridazine derivative

The synthesis, characterization and X-ray crystal structure of 2-(4-chloro-phenyl)-7-methylpyrrolo[1,2-b]pyridazine are reported. The compound crystallizes in the space group P21/c (No.14) with a =3.8568(1), b = 11.0690(3), c = 26.4243(7) Å, β = 92.777(1)° and Z = 4. Accurate molecular parameters for the novel heterocyclic system were obtained from intensity data collected at 113K. The molecule assumes a planar conformation in the crystal and the packing is based on π-π stacking with interplanar spacing 3.400 Å, typical of aromatic molecules with potential for displaying useful optical properties

THE RESEARCHS ON THE BIOCHEMICAL COMPOSITION OF POTATO TUBERS DEPENDING ON THE VARIETY AND THE WATER SUPPLY IN CONDITIONS OF SANDY SOILS IN SOUTHERN OLTENIA

Water is one of the most important factors for potato vegetation. From this point of view, potatoes has been classified among the plants sensible to water shortages, falling under our country from this point of view immediately after rice (Zanfirescu, 1977, quoted by Chichea, 2000). At CCDCPN Dăbuleni was studied an assortment of 14 potato varieties depending on the level water supply. The results show differences between the varieties studied and between levels of water supply within the same variety. They highlighted varieties: Astral, Magic, Tresor, Artemis, Robusta by a dry matter content of over 20%. The vitamin C content was more influenced by the variety in the study and less than the water supply. Best yields were obtained for varieties: Carrera (43.6 t / ha), Tresor (40.8 t / ha), Riviera (39.3 t / ha) on the ceiling irrigated at 80% of the interval active moisture

RESULTS ON THE INFLUENCE SPACE NUTRITION ON GROWTH AND DEVELOPMENT OF SWEET POTATO PLANT UNDER SANDY SOILS IN SOUTHERN OLTENIA

Microclimate created in the psamo-pelitic soils in southern Oltenia, offers great conditions for growth and development of sweet potato (Ipomoea batatas) which is a thermophilic plant specific tropical and subtropical areas. The results obtained during 2013-2015 from Dabuleni, Development Research Center for Plants Crops on Sands, emphasizes productions between 19221 -21634 kg / ha, depending on the size space nutrition and variety cultivated. Those two factors in the study have significantly influenced the conduct from plant physiological processes. The highest value from plant photosynthesis rate (28.81 micromoles CO2 / m2 / s) was recorded at 11 am, at a density of 40,000 plants / ha, when sweet potato plant has lost through sweating about 5.69 millimoles H2O / m2 / s

Sweet potato, a perspective crop for the sandy soil area in Romania

Due to the low natural fertility and climatic conditions characterized by excessive heat and insufficient precipitation, the sandy soils area in southern Oltenia can be characterized as a disadvantaged agricultural area, with farmers having a small variety of crops to ensure the exploitation of the soil in profitable conditions. In the context of climate change, in order to obtain high, safe and stable productions, it is necessary to choose the range of species and plant varieties with high adaptability to the climatic and soil conditions, in this context, Research-Development Station for Plants Culture on Sands Dăbuleni conducting research on the adaptability and profitability of sweet potato culture. Considering that in the tropical and subtropical regions completely replace the potato, F.A.O. mentions sweet potatoes on the 7th place in the world among agricultural crops. Currently, this culture is less known in Romania. With the increase in the import of vegetables, the interest of Romanian consumers for this species of tropical origin has increased. Taking into account these considerations, the researches aimed at establishing the technology of sweet potato cultivation on sandy soils and the biological and biochemical peculiarities of this species. The obtained results were similar to those in the literature, the differences being due to the studied genotypes and to the climatic conditions of the crop year. It is a drought resistant species with vigorous growth and high productivity (20-40 t / ha). Sweet potato is a species of perspective for Romanian vegetable growing, with special nutritional qualities and economically profitable