Articles
Can exogenous application of Zn, B, Ca and NAA on mango trees obstruct fruitlets’ abscission?
Article number
1415_34
Pages
289 – 296
Language
English
Abstract
Mango is one of the most important fruit crops in the tropics and subtropics, due to its pleasant aroma and unique flavor.
Low fruit set and fruit drop is a limiting factor for mango yield.
For the experiment, solutions with 16 amino acids, in addition with Zn 0.2%, B 0.125%, Ca 0.4% and NAA 0.005% was used, applied through three treatments (control, AMINO16-Zn-B, AMINO16-Zn-B-Ca-NAA) on ‘Kent’, ‘Tommy Atkins’, ‘Palmer’, ‘Irwin’ mango cultivars.
The parameters measured were initial fruit number per inflorescence, initial fruit number tree‑1, fruit retained percentage tree‑1 after 15, 30, 45 days of the solution application and at harvest (final fruit retained percentage tree‑1), final fruit number inflorescence‑1, total fruit drop percentage tree‑1 and fruit weight at harvest.
In ‘Kent’ and ‘Tommy Atkins’ cultivars no statistical differences were observed.
In ‘Palmer’, fruit weight was higher in AMINO16-Zn-B treatment (471.7 g), in comparison to the other two treatments.
The other parameters did not differ statistically. ‘Irwin’ had a higher initial fruit number inflorescence‑1 in control (9.3), than in AMINO solution treatments.
Fruit weight was higher than the control when AMINO16-Zn-B was sprayed onto ‘Irwin’ trees (563.3 g). The other parameters in ‘Irwin’ did not have statistical differences.
At harvest, 35.6% (mean value of the three treatments) of fruits retained on ‘Palmer’ mango trees, 34.65% on ‘Kent’, 27.8% on ‘Tommy Atkins’ and 12.6% on ‘Irwin’. However, no significant differences were recorded among the treatments.
Additional research should be done to investigate whether higher quantities of macro- and micro-nutrients are more effective to obstruct fruitlets’ abscission on ‘Kent’, ‘Tommy Atkins’, ‘Palmer’ and ‘Irwin’ mango trees.
Low fruit set and fruit drop is a limiting factor for mango yield.
For the experiment, solutions with 16 amino acids, in addition with Zn 0.2%, B 0.125%, Ca 0.4% and NAA 0.005% was used, applied through three treatments (control, AMINO16-Zn-B, AMINO16-Zn-B-Ca-NAA) on ‘Kent’, ‘Tommy Atkins’, ‘Palmer’, ‘Irwin’ mango cultivars.
The parameters measured were initial fruit number per inflorescence, initial fruit number tree‑1, fruit retained percentage tree‑1 after 15, 30, 45 days of the solution application and at harvest (final fruit retained percentage tree‑1), final fruit number inflorescence‑1, total fruit drop percentage tree‑1 and fruit weight at harvest.
In ‘Kent’ and ‘Tommy Atkins’ cultivars no statistical differences were observed.
In ‘Palmer’, fruit weight was higher in AMINO16-Zn-B treatment (471.7 g), in comparison to the other two treatments.
The other parameters did not differ statistically. ‘Irwin’ had a higher initial fruit number inflorescence‑1 in control (9.3), than in AMINO solution treatments.
Fruit weight was higher than the control when AMINO16-Zn-B was sprayed onto ‘Irwin’ trees (563.3 g). The other parameters in ‘Irwin’ did not have statistical differences.
At harvest, 35.6% (mean value of the three treatments) of fruits retained on ‘Palmer’ mango trees, 34.65% on ‘Kent’, 27.8% on ‘Tommy Atkins’ and 12.6% on ‘Irwin’. However, no significant differences were recorded among the treatments.
Additional research should be done to investigate whether higher quantities of macro- and micro-nutrients are more effective to obstruct fruitlets’ abscission on ‘Kent’, ‘Tommy Atkins’, ‘Palmer’ and ‘Irwin’ mango trees.
Publication
Authors
T.T. Tzatzani, I. Michail, G. Psarras
Keywords
Mangifera indica, Mediterranean, fruit set, fruit retention, fruit drop
Groups involved
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