Normarea încărcăturii de rod la soiul Golden Reinders prin diverse metode de rărire a fructelor

Abstract

The experimental plot is placed in the orchard “Dacfruct” Ltd. founded in 2006. The research was conducted during the period of 2012 year.The study subject of the experience was Golden Reinders apple variety grafted on M 9 rootstock. The distance of plantation is 3,5 x 1,2 m. To optimize the fruit load of the apple trees were experimented the following variants: V1 - Control variant - without thinning; V2 – Manual thinning; V3 - Geramid-New – 1.5 l/ha; V4 - Geramid-New – 1.0+1.0 l/ha. In variants 3 and 4, the tested agent were NAD, (preparation Geramid New). The trees was sprayed in the fierst time when fallen 80% of petals +2-3 days and the second, when central fruits diameter had 6 mm. It was established that, one spray with Geramid New in dose 1.5 l/ha has a significant affect on yield, mean fruit weight and the distribution of apples in size classes.