Gibberellic acid combined with hand pollination increases 'Red' and 'Lessard Thai' sugar apple fruit quality and produced parthenocarpic 'Gefner' atemoya fruits / Ácido giberélico associado com a polinização manual incrementa a qualidade dos frutos em anonáceas e produz frutos partenocárpicos em atemoieira 'Gefner'
Pereira, Marlon Cristian Toledo; Nietsche, Silvia; Crane, Jonathan Henry; Montas, Wanda; Siqueira, Célia Lúcia; Rocha, Josiele Silva.
Ci. Rural
; 49(9): e20180353, 2019. graf, tab
Artículo
en Inglés
| VETINDEX | ID: vti-23711
The present research aimed to evaluate the effect of applying gibberellic acid (GA3) with hand (HP) or natural pollination (NP) on fruit set and the fruit quality of Red and Lessard Thai sugar apple and Gefner atemoya fruits.This study was performed in an experimental orchard located in Homestead, Florida, USA. The experimental design included randomized blocks, with eight treatments, four replicates and four plants per plot. Treatments included (1) HP; (2) HP + 10 mg L-1 GA3; (3) HP + 100 mg L-1 GA3; (4) HP + 1,000 mg L-1 GA3; (5) NP; (6) NP + 10 mg L-1 GA3; (7) NP + 100 mg L-1 GA3 and (8) NP + 1,000 mg L-1 GA3. The HP plus 1,000 mg L-1 GA3 promoted fruit setting above 90% over the 14 weeks for all genotypes evaluated. Significant increments for length and total fruit weight were observed. Red sugar apple and atemoya had a reduced number of seeds per fruit. The NP plus GA3 (1,000 mg L-1) was effective in producing high quality seedless Gefner atemoya fruits. This investigation demonstrated that GA3 plus hand pollination produced high quality sugar apple and atemoya seeded fruits and in association with natural pollination promoted seedless Gefneratemoya fruits.(AU)
Biblioteca responsable:
BR68.1
Ubicación: BR68.1
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