The tomato genotypes studied (L-11/53, Monalbo, L-24/13 and AP-10) were subjected to an analysis of the variability of the main quantitative characteristics of the fruit (fruit weight, fruit height and diameter, shape index, pericarp thickness and soluble dry matter).The registered biometric data were statistically processed, calculating for each analyzed character the mean (x̄), the standard deviation (s), the coefficient of variability (s%), the range of variability (k = x̄ ± s) and the frequency of individuals in the range of variability (f%).The statistical analysis of the recorded data showed that the four tomato genotypes are uniform in terms of the variability of the main characters, the coefficient of variability having medium and low values for most of the analyzed characters, and represent a valuable material for the improvement of this species under conditions of thermal stress hydric from the area sandy soils.

The objective of this study is to present the behavior of 5 genotypes of garden beans: Ișalnița 43, Iuliana, Dabuleni Population (P1), Dabuleni Population (P2) and Ioana in the pedo-climatic conditions of the Dăbuleni area. The experiment is monofactorial and was located in the experimental field according to the method of randomized blocks in 3 repetitions. Cultivation technology specific to sandy soils was applied. Determinations were made regarding: number of pods per plant, length of pods, diameter of pods, average production achieve and phenological observations. The Ișalnița 43, P1, P2 genotypes stood out for their earliness, and the P1 genotype for the average production achieved. The weight of the pods varied between 15.59 g in the P2 genotype and 3.09 g in the Iuliana genotype.

The research followed the behaviour of white grape vine varieties in the ampelographic collection over a ten-year period (2012-2021). The fertility of the shoots, recorded different values depending on the variety and climatic conditions. The relative fertility coefficient recorded both subunit and superunit values depending on the year, with one exception, the variety Fetească regală Cl. 21 Bl., where the values were only superunitary (1.13-1.67), while the maximum value of the absolute fertility coefficient was recorded for the variety Blasius, ranging from 1.23 to 2.10. In terms of average grape production, for the period 2013-2021, the varieties Brumariu stood out with a production value of 15828 kg/ha and Selena with 13729 kg/ha. At the opposite end of the scale were Columna (8095 kg/ha) and Donaris (7764 kg/ha). Total sugar content values at harvest maturity varied from variety to variety and from year to year. In this respect, the Selena variety came first, with an average total sugar content of 210 g/l. Columna had the lowest average total sugar content (167 g/l).

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Research into the cultivation of watermelons began many years ago. At the beginning, at RDSPCS Dăbuleni, the study of as many varieties and hybrids as possible was considered, in order to determine which ones find optimal conditions for growth and development on sandy soils and which meet the demands of the constantly changing market. Another important concern in the research activity at RDSPCS Dăbuleni was related to the obtaining of extra-early and early productions. In the traditional culture, established by direct sowing, mulching the soil with polyethylene ensured a production increase of 5.2 t/ha, 0.9 t/ha representing extra-early production, and in the seedling culture, by mulching the total production increased by 7.2 t/ha, and extra-early production increased by 2.3 t/ha compared to the non-mulched crop. Plant grafting, regardless of cultivar, rootstock and protection method, showed resistance to the attack of Fusarium oxysporum, even when crop rotation was not respected, but did not influence the attack of foliar pathogens (Alternaria cucumerina and Colletotrichum lagenarium).