NEEDS AND POSSIBILITIES OF MINIMALIZATION OF MECHANICAL EXERTING OF LOWER EXTREMITIES DURING LANDING IN RECREATIONAL SPORTS

Sports games are favourite form of sports recreational activities. However, positives joint together with performing them are accompanied by certain problems. Frequent injuries and pains of motion apparatus of sportsmen demonstrate this fact. The reason of this phenomena has mechanical origin - inadequate claims on motion apparatus. Rapid changes of direction and speed are namely typical for players. It is showed significantly at jumps, which are the important part of motion in sports games, mainly in volleyball. Great impact force of soles to the ground origins here. The authors of this paper investigate this problem. They choose the goal to know about reaction force of ground during the landing at sports games, factors determining its magnitude and possibilities of influencing of these factors with intention to minimalize reaction force of the ground. The results of the work supplement the knowledge of biomechanics on mechanical exerting of motion apparatus during landing. Paper brings data about the magnitude of overload during these activities. It demonstrates that activities, in which jumps are involved, present the danger of “overlimited" mechanical overload. Simultaneously it ,gives the proofs about the necessity to minimalize the reaction force of ground during the landing

Genetic structure of wild pea (Pisum sativum subsp. elatius) populations in the northern part of the Fertile Crescent reflects moderate cross-pollination and strong effect of geographic but not environmental distance

Knowledge of current genetic diversity and mating systems of crop wild relatives (CWR) in the Fertile Crescent is important in crop genetic improvement, because western agriculture began in the area after the cold-dry period known as Younger Dryas about 12,000 years ago and these species are also wild genepools of the world’s most important food crops. Wild pea (Pisum sativum subsp. elatius) is an important source of genetic diversity for further pea crop improvement harbouring traits useful in climate change context. The genetic structure was assessed on 187 individuals of Pisum sativum subsp. elatius from fourteen populations collected in the northern part of the Fertile Crescent using 18,397 genome wide single nucleotide polymorphism DARTseq markers. AMOVA showed that 63% of the allelic variation was distributed between populations and 19% between individuals within populations. Four populations were found to contain admixed individuals. The observed heterozygosity ranged between 0.99 to 6.26% with estimated self-pollination rate between 47 to 90%. Genetic distances of wild pea populations were correlated with geographic but not environmental (climatic) distances and support a mixed mating system with predominant self-pollination. Niche modelling with future climatic projections showed a local decline in habitats suitable for wild pea, making a strong case for further collection and ex situ conservation

Possibilities of chemical control of weeds in field rocket (Eruca sativa Mill.) culture under temperate climatic conditions

Supplementary (source) data for weed composition, density and yield of rocket culture in two experiments testing the effect of two herbicides against weeds and on yield of rocket culture plus meteorological data during the course of experiments

Possibilities of chemical control of weeds in field rocket (Eruca vesicaria (L.) Cav.) culture under temperate climatic conditions

Supplementary (source) data for weed composition, weed density and yield of rocket culture in two experiments testing the effect of two herbicides against weeds and on yield of rocket culture plus meteorological data during the course of experiments. Results of the preliminary expriment (already published) are also added

Possibilities of chemical control of weeds in rocket fields under temperate climate

Supplementary (source) data for weed composition, weed density and yield of rocket culture in two experiments testing the effect of two herbicides against weeds and on yield of rocket culture plus meteorological data during the course of experiments. Results of the preliminary expriment (already published) are also added

Possibilities of chemical control of weeds in rocket fields under temperate climate

Supplementary (source) data for weed composition, weed density and yield of rocket culture in two experiments testing the effect of two herbicides against weeds and on yield of rocket culture plus meteorological data during the course of experiments. Results of the preliminary expriment (already published) are also added.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV