Evaluarea produsului brevis la normarea încărcăturii de rod în coroana pomilor de măr din soiul Pink Lady

  • Sergiu PANUŢA Universitatea Agrară de Stat din Moldova
  • Ananie PEȘTEANU Universitatea Agrară de Stat din Moldova
  • Dmitri MIHOV SRL “Terra Vitis”, s. Burlacu, raionul Cahul, Republica Moldova
  • Alexei IVANOV SRL “Terra Vitis”, s. Burlacu, raionul Cahul, Republica Moldova

Abstract

Abstract. 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.


Key words: Malus; Chemical thinning; Growth regulators; Yield; Quality.


Rezumat. Drept obiect de studiu a servit soiul Pink Lady, altoit pe portaltoiul M26. Pomii au fost conduşi ca fus obişnuit. Distanța de plantare a fost de de 4,0x1,5 m. Lotul experimental a fost amplasat în livada comercială a întreprinderii SRL „Terra Vitis”, fondată în anul 2013. Cercetările au fost efectuate în anul 2018. Studiul a avut ca scop determinarea eficacităţii regulatorilor de creştere şi a dozelor optime de tratare pentru rărirea fructelor. Pentru a aprecia influenţa asupra răririi fructelor s-au experimentat următoarele variante: 1) martor, fără tratare; 2) Geramid New, 1,3 l/ha; 3) Brevis, 1,1 kg/ha; 4) Brevis, 1,65 kg/ha; 5) Brevis, 2,2 kg/ha. Tratamentul cu produsul Geramid New s-a efectuat prin pulverizare, la căderea a 80% din petale, + 2-3 zile, iar taratamentul cu Brevis s-a aplicat când fructul central din inflorescență a avut un diametru de 10-12 mm. Indicatorii cercetaţi au fost numărul de inflorescențe după rărire, greutatea medie a fructelor, randamentul, diametrul mediu al fructelor și clasele de mărime în funcție de diametrul lor. S-a stabilit că o rărire mai eficientă şi o distribuire mai rațională a fructelor a avut loc în cazul administrării produsului Brevis în doza 1,65 kg/ha.


Cuvinte-cheie. Malus; Rărit chimic; Regulatori de creştere; Recoltă; Calitate.

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Published
2021-08-17
How to Cite
PANUŢA, Sergiu et al. Evaluarea produsului brevis la normarea încărcăturii de rod în coroana pomilor de măr din soiul Pink Lady. Stiinta agricola, [S.l.], n. 1, p. 38-44, aug. 2021. ISSN 2587-3202. Available at: <https://www.sa.uasm.md/index.php?journal=sa&page=article&op=view&path%5B%5D=733>. Date accessed: 24 oct. 2021.
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