Trees can be propagated by seed, as they breed true, or grafted onto other rootstocks, trifoliate orange being the most popular.
2.
Trifoliate orange, which is often used as commercial rootstock, is an outgroup and may or may not be categorized as a citrus.
3.
A . My guess is that your shrub is the trifoliate orange, which is sometimes called the hardy orange ( Poncirus trifoliata ).
4.
The trifoliate orange and kumquats do not naturally interbreed with the four undisputed citrus taxa due to different flowering times, but hybrids ( such as the citrange and calamondin ) exist.
5.
They can be grown from seed, which takes about 8 years until the first fruits are produced, or grafted onto other citrus rootstocks, trifoliate orange being one of the most popular.
परिभाषा
small fast-growing spiny deciduous Chinese orange tree bearing sweetly scented flowers and decorative but inedible fruit: used as a stock in grafting and for hedges पर्याय: trifoliata, wild orange, Poncirus trifoliata,