ISHS Acta Horticulturae 649: Euro Berry Symposium - Cost 836 Final Workshop
MANGANESE NUTRITION OF STRAWBERRIES GROWN ON PEAT |
| Author: | P. Lieten |
| Keywords: | Mn, substrate, nutrient solution, Fragaria x ananassa |
| Abstract:
Plants of short day strawberry (Fragaria x ananassa Duch. 'Elsanta') were grown in a greenhouse. Two successive trials were conducted with cold stored trayplants, planted in containers, filled with a peatmixture, mid of August and harvested in autumn and the following spring. In a first trial six rates of Mn (0,10,20,30,60 and 120 μmol/l) were applied in the nutrient solution. In a second trial five rates of Mn (0,20,120,240 and 360 μmol/l) were supplied by drip irrigation. The content of Mn in the leaf tissue and substrate were closely correlated with those in the nutrient solutions. In case no Mn was applied this was associated with a Mn leaf value lower than 20 ppm and leaf deficiency symptoms. On the other hand at the highest application rate leaf values of 1600 ppm were found without any visible toxicity symptoms. In both cases the yield was reduced with 10 %. However, the Mn concentration in the nutrient solution did not show any significant effect on fruit weight nor fruit set. A Mn concentration of 10 μmol per liter nutrient solution is considered sufficient for the variety Elsanta grown on peat in normal conditions. | |
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