Garlic was examined in field experiments conducted in central Serbia (Belgrade). Spring garlic was examined. The objective was to examine the effect of plant density on photosynthesis productivity (LAR-Leaf Area Ratio, NAR- Net Assimilation Rate) and the yield of garlic. The analysis involved the following plant densities: 300 (G1), 450 (G2), 600 (G3), 750 (G4) and 900 (G5) thousand plants ha -1 . The garlic exhibited better results in denser crop establishment. It is clearly indicated by the yield of garlic attained in the experiments. Average yield rates range from 5.6 (G1) to 12.5 t ha -1 (G5). The results demonstrate that the garlic should be grown in high density establishment.
Disappearance of old cultivars, including dry and snap bean (Phaseolus vulgaris L.) has been accelerated in last five to six decades, which mainly led to great genetic impoverishment. For all the humanity and its future, particularly is important the maintenance and evaluation of old cultivar’s seeds. The research presented in this paper has been conducted on the territory of southwestern Fruska gora Mt. Of the collected samples of field and vegetables crops, as well as wild plants on the mountain, 13 accessions of snap bean and 21 accessions of dry bean have been analyzed in this paper. Seed color, seed shape, 1000-seed mass and phaseolin type was determined for all the accessions. Seeds of collected bean and snap bean accessions were predominantly white and cylindrical in shape. Mass of 1000 seeds ranged between 104,90 g and 634,96 g. T phaseolin type dominated, while S type of phaseolin was present in six bean and in two snap bean accessions. [Projekat Ministarstva nauke Republike Srbije, br. TR31030: Development of vegetable varieties and hybrids for field and indoor production and Project Provincial Secretariat for Science and Technological Development, Autonomous Province Vojvodina, Republic Serbia, number 114-451-3139/2011-01]
The Programme for Conservation of Plant Genetic Resources in the Republic of Srpska was established in 2008. The main objective of the Programme is effective management of plant genetic resources through carrying out of continuous field inventories and collection, evaluation, exchange and conservation of germplasm. The Genetic Resources Institute, University of Banja Luka was appointed as a expert unit for coordination and implementation of the Programme. In the period from 2009 to 2011, the inventory was made for part of the area of the Republic of Srpska. An innovative approach was adopted for conservation of plant genetic resources by means of long-term seed preservation, in vitro conservation, morphological and molecular characterisation, as well as regular database updates. Contacts were established with producers for the purpose of on farm protection of local ecotypes and populations. An ex situ collection was established in the Botanic Garden for plant species that can not be conserved in the form of seeds. By the end of 2011, the Gene Bank had reached its full operation with 455 accessions in long-term storage (-18 o C), around 150 accessions in the working collection and 100 accessions in the field collection. With its 91 accessions, the Genetic Resources Institute is part of a European web-based catalogue of inventories of plant genetic resources (EURISCO). Having adopted the Programme, the Republic of Srpska has not only fulfilled one of the world's peremptory obligations to conserve biodiversity of agricultural crops, but also a moral obligation to future generations.
The experiment was carried out in a greenhouse in the Mediterranean Agronomic Institute of Bari (IAMB.) located in the southeastern Italy. The aim of this research was to evaluate macronutrient (NPK) status of cauliflower grown in three inert substrates (perlite, gravel and pozzolana). Nutrient losses were very low due to a good management practice and control of fertiliser application. The highest NPK nutrients application efficiency was obtained in phosphorus, 97.2%. Among nutrients, potassium was lost in the highest percentage (11.6%). Obtained losses did not cause high pollution of the soil and ground water.
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