Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 1
Written by Adelina VENIG, Florin STĂNICĂ
This paper aimed to present the effect of irrigation and fertilization on photosynthetic rate at trees of different plum cultivars in the fruit trees nursery, to obtain a good quality planting material, given the fact that in recent years Romania is facing the phenomenon of complex drought, which represents a climatic hazard phenomenon that induces the most serious consequences in horticulture. The research was carried out in the year 2022 in a fruit trees nursery located in the North- West Region of Romania. The initial biological material was represented by rootstock seedlings that belong to the "Certificate" biological category and for grafting were used buds from two plum cultivars: 'Stanley’ and 'Cacanska Lepotica’. During the analysed period, trees of 'Cacanska Lepotica’ utilized the fertilization with 16 and 24 kg of NPK at a significantly higher level, with an increases of photosynthesis rate by 7.55%-14.29%. In the case of 'Stanley’, the treatment with NPK was associated with a significant intensification of the photosynthesis process compared to the unfertilized variant and smaller variations between fertilization doses.
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