Published in Scientific Papers. Series B, Horticulture, Vol. LXVIV, Issue 1
Written by Alexandra BECHERESCU, Gheorghița HOZA, Florin SALA
This study evaluated the response of some cherry tomato hybrids to foliar fertilizers. The experiment was carried out in protected space conditions (solar tunnel). As biological material were used four hybrids (factor A): Arielle F1 (a1), Ravello F1 (a2), Black Cherry F1 (a3) and Vespolino F1 (a4). The foliar treatments (factor B) were: unfertilized (b1), Kerafol Evo (b2), Plantfert U (b3). From the combination of factors, 12 experimental variants resulted. Physiological indices, productivity elements and yield were analyzed in relation to the experimental variants. In unfertilized conditions (b1), the yield (Y, kg plt-1) recorded differentiated values in relation to the potential of the hybrids, Y = 1.416 kg plt-1(a1), Y = 1.632 kg plt-1 (a2), Y = 1.668 kg plt-1 (a3) respectively Y = 1.890 kg plt-1 (a4). Through foliar treatments, the performance of the hybrids increased, but the Vespolino F1 hybrid (a4) remained with the highest yield, Y = 2.538 kg plt-1 (b3). The foliar fertilizer Plantfert U (b3) ensured the highest increase in yield (∆Y) in all the tested hybrids. Mathematical models described yield variation in relation to physiological indices and productivity elements.
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