The early sprouting and mid maturing new mulberry varieties Nongsang 12 and Nongsang 14 were bred through hybridization, single plant selection, pedigree selection and regional test.
通过人工有性杂交、单株选择、系统选择、区试鉴定，育成早生中熟桑树新品种农桑12号、农桑14号。
2
Selected through a series of rigorous quality assurance test. ensuring pureness pedigree in its body, shape and colour.