Branches Intensity And The Influence Of Seedling Quality Of Sapling Growth For Apple

As the regionalization of apple experiment and demonstration stations and haishengcompany regionalization base3years high spindle red Fuji apple as the test materials, theintensity of different branches in winter and the influence of different seedling quality on treegrowth, for the new orchard of trimming and seedling selection provides the basis.Theexperimental results showed that:1. Increases with the strength of the branches, stem thick and plant height decreasegradually, lateral branch number, germination rate, branches than less than a third of the rateincrease gradually, retain100%collateral processing dry rough up to38.08mm, limb than theproportion of less than a third were above90.0%. Short branch, the branch, long branchnumber and the amount of total branches gradually reduce with the increase of the intensity ofbranches, robust growth branch number gradually increased, keep the number of short shoot100%collateral processing155article, maximum is8.6times of hydrophobic besides100%collateral. Biomass significant difference between four processing, retain100%collateralprocessing up to4574.34g, extremely significant difference with other processing,hydrophobic in addition to the30%minimum collateral processing of biomass is2625.11g.Dredging collateral than100%processing of chlorophyll content, shutter dry weight, leaf areaand other traits were greater than other treatment,59.40SPAD,59.40g, respectively was25.99. Tree duty ability and utilization of nitrogen is increased after the first decreases, andkeep100%of nitrogen utilization rate was8.54%, the lowest collateral processing thincollateral than30%nitrogen use efficiency as high as14.46%. Flower bud number wasincreased after the first decreases, and dredging collateral than30%processing inflorescencenumber up to88, hydrophobic except100%collateral processing only11, and given priorityto with axillary bud. Interstocks M26and interstocks M9test tree performance trends arebasically identical. In shaanxi area of weihe river, the newly built2years apple orchardappropriate branches of about30%in winter.2. Domestic dwarfed interstocks apple seedlings mainly for3years living seedling, with3years dwarfed the raw root anvil went abroad than domestic small seedlings, pooruniformity.Domestic seedling dry, coarse, lateral branch number, number of long branch,branch number, short shoot in both quantity and amount of total branches less than foreign nursery stock, robust seedling branch number greater than abroad.Domestic nursery stockshort branches number less than foreign seedlings, seedling planting abroad in the first yearafter a large number of flowering, in the second year of economic output, and less domesticseedling planting in the second year after flowering, and given priority to with axillarybud.Built using3years since the raw root stock went to the interstocks seedling moreconducive to high spindle plastic and early results.