Evaluarea produsului brevis la normarea încărcăturii de rod în coroana pomilor de măr din soiul Pink Lady
2021
Panuța, S. (State Agrarian University of Moldova, Chisinau (Republic of Moldova) | Peșteanu, A. (State Agrarian University of Moldova, Chisinau (Republic of Moldova) | Mihov, D. (SRL "Terra Vitis", Burlacu village, Cahul district, (Republic of Moldova) | Ivanov, A. (SRL "Terra Vitis", Burlacu village, Cahul district, (Republic of Moldova)
The study subject of the experience was Pink Lady apple variety, grafted on M26. The trees were trained as slender spindle system. The distance of plantation was 4.0x1.5 m. The experimental plot was placed in the commercial orchard of the enterprise „Terra Vitis” Ltd. founded in 2013. The research was conducted during the period of 2018 year. This study had the aim to determine the efficacy of different agents and doses on the thinning of apple fruits. The following variants were experimented: 1. Control – without treatment; 2. Geramid New, 1.3l/ha; 3. Brevis, 1.1 kg/ha; 4. Brevis, 1.65 kg/ha; 5. Brevis, 2.2 kg/ha. The treatment with the product Geramid New was carried out by spraying, at the fall of 80% of the petals, + 2-3 days, while Brevis treatment was applied when the central fruit in the inflorescence was 10-12 mm in diameter. The number of blossom clusters after thinning, mean fruit weight, yield, average diameter of fruits and size classes based on their diameter were studied during the research. It was established that the good effect of thinning was noticed after application of Brevis, 1.65 kg/ha.
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