ISHS Acta Horticulturae 291: III International Mango Symposium
INFLUENCE OF STOCKPLANT-PRETREATMENT ON THE ROOTING ABILITY OF CUTTINGS OF THREE MANGIFERA INDICA L. ROOTSTOCKS |
| Authors: | N.V. Schaesberg, P. Ludders |
| Abstract:
For selection of suitable rootstocks of mango, successful vegetative propagation is necessary. Rooting of semi-hardwood cuttings is a common and convenient method but still gives unsatisfactory results especially with non-juvenile material. The purpose of the present study was to examine the effect of 2 different rootzone temperatures (20°, 30°C) on the mother stockplants of three cultivars ('Terpentine', 'Gomera', '13–1') and the subsequent rooting of their cuttings. High rootzone-temperature of 30°C decreased number of rooted cuttings of '13–1' but increased it with the two other rootstocks. Number of roots of 'Terpentine' and '13–1' cuttings was decreased by high rootzone temperature. Carbohydrate content of leaves and stems of 'Terpentine' and 'Gomera' was higher with 30°C bottom temperature, whereas in '13–1' it was lower. In a second experiment, the effect of different nitrate levels (3mM, 6mM, 9mM NO3/1) in the nutrition of mother stockplants on the rooting of their cuttings was examined. High or medium N-supply to 'Terpentine' and 'Gomera' motherplants resulted in an increase of number of roots per cutting, whereas it decreased number of roots on cuttings of '13–1'. | |
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