Eficienţa răririi fructelor de măr de soiul Renet Simirenko prin utilizarea produselor pe bază de Nad, Ana şi Ba

Abstract

The experimental plot is placed in the orchard “Codru-ST” Ltd. founded in 2006. The study subject of the experience was Renet Simirenco apple variety grafted on M 9 rootstock. The distance of plantation is 3.5 x 1.2 m. The research was conducted during the period of 2014 year. The tested agents were NAD (Geramid-New), NAA (Dirager) and BA (Gerba 4LG), which was sprayed with different doses and different thinning period. During the research, it was studied the yield, mean fruit weight and average fruit diameter. It was established that, in the 2014 year the spray with Geramid-New in dose 1.2 l/ha when 80% of the petals have fallen + 2-3 days, Dirager in dose 0.2 l/ha when the king fruit diameter was 8-9 mm, and Gerba 4LG in dose 2.0 l/ha when the king fruit diameter was 10-12 mm have a significant effect on the number of the fruits, mean fruit weight, yield and on the fruits diameter.