Raspberry production has a long tradition in the Republic of Serbia, and the raspberry is the most economically important berry crop. According to data for the period from 2006 to 2016, the Republic of Serbia was ranked fourth in the world in the production of this fruit crop. The paper presents an analysis of raspberry production in the Republic of Serbia using statistical data from the previous years, which were compared with 2016 data. For comparison and analysis, we used the data presented on the FAOSTAT statistical database website and the Statistical Office of the Republic of Serbia (RZS) website. The analysis of the available data for the period 2006-2016 shows that the total yield of raspberries in this period varied, as did yield in tonnes per hectare, which ranged from 5.3 to 6 tonnes, depending on year. A sudden decrease in total yield in 2012 and in all subsequent years until 2016 was also observed. This was caused by a sudden reduction in the area under raspberries.

This work aimed to evaluate changes in phytic phosphorus content as the response of three maize hybrids (ZP 457, ZP 5601, and ZP 606) to different pesticide treatments for European Corn Borer (ECB) attacks and, as well as the correlation between damage caused by ECB attack and Pphy content. In the experimental field, maize ears were sampled and dried at a moisture content of 14% for the determination of changes in phytic phosphorus content in the grain. The content of phytic phosphorus was determined using UV / VIS spectrophotometry. Observed results showed the highest content of phytic phosphorus for untreated control for all tested hybrids, compared to pesticide treatments. The content of Pphy in the tested maize kernel samples ranged from 2.12 to 3.40 mg g-1. A significant positive correlation between attacks of larvae and Pphy content could indicate activation of its antioxidative function as a response to damage caused by ECB attack.

The harvest index of grain can be used as indicator for the potential yield of crop. The aim of this study was to determine the variation of the harvest index for wheat and triticale and differences in monocrops and intercrops systems of cultivation under different field environmental conditions. The experiment, carried out in field conditions for two consecutive years, was designed according to a randomized block system so that each species was sown in two cultivation systems as a single crop and a combined crop (wheat + pea and triticale + pea) in four replicates. The results show that, in the first year of the experiment, the value of the harvest index varied from 32.5% (triticale + pea) to 39.3% (wheat monocrop), while in the second year of the research, the value of the harvest index varied from 26.4% (wheat + pea) and 28.1% (triticale + pea). As for the components of harvest index, values of weight of grains spike-1 and weight of total above ground biomass were higher in intercrops than in monocrops system of cultivation. It can be concluded that the intercropping of cereals (triticale and wheat) and forage crops (pea) provided positive effects on weight of grains spike-1 and weight of total above ground biomass and does not diminish harvest index when compared to standard system of cultivation.

Pea–cereal intercropping may combine ecological disease regulation with improved land-use efficiency, but field evidence for pea powdery mildew responses on the pea component under temperate continental conditions remains limited. A two-year field experiment (2017/2018 and 2018/2019) was conducted in Novi Sad, Serbia, to evaluate the effects of intercropping on pea powdery mildew disease index (DI%), pea grain yield, seed physical quality traits, and land-use efficiency. Winter pea cv. Kosmaj was grown as a sole crop or in mixed intercropping (70% pea + 30% cereal seeding rates) with wheat, triticale, rye, or oat in a randomized complete block design with four replicates. Powdery mildew DI% was assessed at BBCH 71–75, while pea grain yield, thousand-seed weight (TSW), hectoliter weight (HLW), and yield-based land equivalent ratio (LER) were determined at harvest. Under the low natural disease pressure recorded in the study, intercropping was associated with lower DI% than sole cropping (approximately 2.8-fold lower on seasonal means; p < 0.001), but DI% did not show a significant independent effect on pea grain yield, TSW, or HLW after accounting for year and cultivation system. Pea grain yield was generally lower under intercropping, although the magnitude of reduction depended on the cereal companion; pea–triticale maintained pea yield closest to the sole crop, whereas pea–oat showed the lowest pea yield. TSW and HLW were generally higher under intercropping, but additional analyses indicated that these traits reflected different response patterns. All intercrops achieved LER > 1, with the highest values recorded for pea–triticale.