Apricot cultivars are usually grafted onto plum or peach rootstocks. Named cultivars are propagated by cuttings or layers grafted on quince rootstock. Some species can be grafted onto citrus rootstocks. Hardy kiwi cuttings may be grafted directly onto established kiwifruit rootstock, or rooted themselves. Trees grafted on dwarfing rootstocks bear about of fruit per year. It is very commonly grafted onto sufficient rootstock. They were replanted with Sauvignon Blanc, partly because it grafted better onto the American rootstocks. "Citrus maxima" is usually grafted onto other citrus rootstocks, but may be grown from seed. These can be grafted on to standard citrus rootstocks. Uncommon forms can be grafted onto seedlings of other species. Protein tags are peptide sequences genetically grafted onto a recombinant protein. The polymers are typically either grafted or adsorbed onto the surface of the particle. On sand, they are grafted on rough lemon rootstock. Many growers purchased bud wood and then grafted the cuttings to root stock. Fruit and nut trees could be grafted with multiple varieties.