THE EFFECT OF SEED TREATMENT ON THE MAIN PATHOGENS PRESENT IN WHEAT AGROECOSYSTEMS.

Wheat crop (Triticum aestivum L.) from Poaceae family is affected by many diseases that cause yield losses. The present paper addresses a topic of economic, agrotechnics and social importance of wheat crop (occupying the first place among the Romanian cultivated crop, feeding 35 to 40% of world population). The study had as main objective product testing like Yunta 246 FS (imidacloprid 233 g/l + tebuconazol 13 g/l), Team Micorriza Plus (Glomus intraradices 150 spore/g + Glomus mosseae 150 spore/g + organic matter 56% and Rhizosphere Bacteria 107 UFC/g) and Condor (Trichoderma spp. 1 x 109 spore/g + Glomus sp. 10 spore/g + Rhizosphere Bacteria 1 x 107 UFC/g and organic matter 7%) applied in the pathosystem wheat/pathogens. The research was conducted in the western part of Romania, in 2010-2012, experience was placed after Latin rectangle method with 10 variants (they are different by product and dose applied) and the data were statistically interpreted. Results showed the presence of pathogens Septoria tritici, Drechslera tritici repentis and Drechslera teres in experimental variants. Statistical analysis showed that the most effective chemical mixture was imidacloprid + tebuconazol at the highest dose tested (3 l/t). Regarding the non-chemical product testing, the product Condor gave positive results. The highest values of quality parameters (protein and gluten) were obtained in the variants treated with Yunta 246 FS.

Weed control in conventional and transgenic maize with resistance to glyphosate.

The researches were conducted in order to observe the behaviour of conventional and glyphosate resistant transgenic maize to different weed control methods. In this paper, the obtained results are presented. The study was conducted in experimental years 2008-2009 in the frame of Didactical Station USAMVB Timisoara. In order to conduct this study, 4 variants cultivated with conventional maize DKC 5143 and 8 variants cultivated with transgenic maize DKC-MON88017 with resistance against Diabrotica virgifera virgifera and to glyphosate. The efficacy of weed control methods was assessed, as well as the herbicide selectivity to cultivated maize hybrid. The weed coverage degree in control plot (V2) was 304 weeds/sqm in the first year and 465 weeds/sqm in the second year. In the variants cultivated with transgenic maize the control was up to 90% much more than control percent achieved in conventional variants. Although, in order to achieve an efficient control (higher than 95%), even to transgenic maize, two glyphosate sequential treatments has to be done. The yield results were positive correlated to the different control methods. However those were affected by climatic conditions recorded in experimental years.

[The incidence of some angiotensin-1 converting enzyme gene alleles in patients with coronary heart disease].

The results of several studies which have been published since 1992 evidence a significant correlation between DD genotype of angiotensin 1-converting enzyme (ACE) gene and development of coronary artery disease (CAD) in some populations. The authors of this article studied distribution of ACE gene I/D genotypes (II, ID, DD) in 102 patients with CAD and 50 controls without cardiovascular pathology or diabetes mellitus. The CAD diagnosis was confirmed by coronaroangiography. The study established a significant correlation between the presence of DD-ACE genotype and development of CAD. After exclusion of patients with classic risk factors (body mass index greater than 26 kg/m2; arterial hypertension; dislipidemia), this correlation remained. The results of the study demonstrate a significant positive correlation between the presence of DD genotype and high risk of CAD in this population, including people without such classic risk factors as obesity, arterial hypertension, or dislipidemia.