Eugenia Harsan

The behaviour of some plum cultivars in the centre of Transylvania.

The plum remains the most important and the traditional fruit species in Romania due to the nutritional value of the fruits and the productivity and ecological plasticity of the cultivars provides an almost sure economic efficiency (Cociu, 1997; Ardelean and Sestras, 1999). At the Fruit Research Station of Cluj no studies had been made regarding the behaviour of the new plum cultivars, thats why the present range of plum cultivars is very poor and with low productivity. The research carried out in 2004-2009, regarding the reaction of some plum cultivars in the centre of Transylvania lead to the following results: From the phenological point of view, the studied cultivars are suitable for the climatic conditions of the region, although there were differences regarding temperatures and rainfall. High yields of good quality fruit were obtained in some cultivars.

THE INFLUENCE OF WATER TREATED BY PHYSICAL METHODS UPON THE GROWTH OF SOME DENDROLOGICAL SPECIES

In 2006, at Fruit Research Station Cluj were carri ed out experiments regarding the influence of water treated by some physical methods upon the growth of some dendrological varieties. The results of the study are presented i this poster. The experiments were made at the pot plants from Weigela florida “Variegata” and Thuja occidentalis “Smaragd” species and were used 3 variants of physical treat ed water in comparison with untreated water. During each wateri ng, it was used the same water quantity from each variant. The water variants used for watering, for both spe cies, were: V1untreated water; V2modified water by Ancu-Dinc ă effect; V3magnetized water with magnet, produced by Energet ix wi h magnetical field intensity of 1200 Gs; V4vibrated water. The experiment was organized in 4 repetitions, for 5 plants/repetition, for each species. The plants’ growth was monitored. At both species, it was found a positive influence, but insignificant in the case of watering with wate r modified by Ancu-Dincă effect and distinguishable positive influences in the case of watering with magnetised water. In conclusion: 1. Water magnetised by Energetix permanent magnet, by maintaining the water a certainn period of time in the magnetic field, stro ngly influences, positively, the growth of the Weigela florida „Variegata” and Thuja occidentalis „Smaragd” plants. 2. Water physically modified by Ancu-Dinc ă effect, also positively influences the growth of the two species, but in a less evident way (not significantly), and less economically.