ISHS Acta Horticulturae 455: V International Mango Symposium
EFFECTS OF POTASIUM NITRATE AND PACLOBUTRAZOL ON FLOWERING INDUCTION AND YIELD OF MANGO (MANGIFERA INDICA L.) CV. HADEN |
| Authors: | E. Sergent, D. Ferrari, F. Leal |
| Keywords: | Mango, Mangifera indica L., Paclobutrazol, Potassium Nitrate, ‘Haden’, biennial bearing |
| Abstract:
Potassium nitrate (PN) and Paclobutrazol (PBZ) effects on mango production applied to 5 years old ‘Haden’ trees were evaluated during 1993–94. The experiment was conducted at Maracay, Aragua State, Venezuela, using a randomised block design with 3 replications. Concentrations used were: 24; 36 and 48 g/L, divided in three applications in 1993–94 (September, October and November). Other groups of trees were treated in June with Paclobutrazol at 5; 10 and 15 g.a.i./tree; and in October at 2.5 g.a.i./tree, during 1993. During july 1994, PBZ was applied at 2.5; 5.0; 5.0 and 0.0 g.a.i./tree. The highest concentration of PBZ (15 g.a.i.) induced good yields and reduced the biennial bearing of ‘Haden’. Also the applications of PN (36 g/L) were effective in maintaining high yields during two consecutive years; while the control trees exhibited low yields and strong biennial bearing. | |
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