根系是一切高等植物之本。对一般根而言 ,根系着生在土壤里 ,担负着固着、吸收、同化及输导功能。同时还能分泌多种酶 ,以分解土壤中的有机物质。从而在恢复土壤肥力中起着决定性作用。因此 ,根系的活动生长状况直接影响到地上部生长、发育、果实的数量及质量。苹果根系是由骨 The root system is the root of all higher plants. For the general root, root is born in the soil, responsible for fixation, absorption, assimilation and transport functions. At the same time also secrete a variety of enzymes to decompose the organic matter in the soil. Thus playing a decisive role in the restoration of soil fertility. Therefore, the activity of root growth directly affects the growth and development of shoots, the quantity and quality of fruits. Apple roots are made of bone