【摘要】 用人工有性杂交，单株选择，系统选择，区域性鉴定，育成早熟桑树新品种农桑10号。与对照荷叶白相比，全年公顷桑产叶量高17．09％，春产片叶量高23．11％，万蚕茧层量高279％，公顷桑产茧层量高2421％，百蚕良卵数相仿，抗桑黑枯型细菌病、黄化型萎缩病力强，抗旱耐瘠，生长势旺，适应性广。更多还原

【Abstract】 A new mulberry variety with forward leaf maturity in spring, Nongsang-10,wasbred through breeding processess of hybridization,selection and regional test.Its annual and spring leaf yield per hectare was 17. 08% and 23. 11 % higher than the control varlety "Heyebai" respectively. The cocoon shell weight of 10000 silkworms reared with the bred mulberry was 2. 79% higher than the control. cocoon shells produced from per hectare mulberry was 24. 21 % higher than the control. The number of good eggs per 100 silkworms reared with Nongsang- 10 was similar to that reared with heyebai.It is highly resistant to yellow dwarf disease and black bacterial withering disease.It is also luxuriant and vigorous in growth, fairly resistant to drought, tolerant to poorsoil and with wide adaptability.更多还原