桑树新品种“育2号”,是中国农业科学院蚕业研究所在1953年采用“湖桑39号”作母本,广东荊桑为父本,进行花粉杂交,经过多年的培育、选择、反复鉴定而选育成功。其优点:一、早熟、丰产、抗病、生长势强。1.发芽早、成熟快、叶质充实。据调查,比现行早生品种“早青桑”提早发芽三天左右,叶质硬化亦较迟,适宜全龄用叶。2.发芽率高、发条力强。发芽率在85%以上,比现行品种“湖桑32号”发芽率提 The new mulberry cultivar “Yu 2” is a silkworm Institute of Chinese Academy of Agricultural Sciences in 1953, “Husang 39” as the mother, Guangdong Jing Sang as the male parent for pollen, after years of cultivation, selection, repeated Identification and breeding success. Its advantages: First, precocious, high yield, disease resistance, strong growth potential. 1. Germination early, mature fast, leafy enrichment. According to the survey, than the existing early varieties of “Asao Sang” early germination about three days, leaf sclerosis also later, suitable for all ages with leaves. 2 germination rate, winding power. Germination rate of 85% or more, than the current varieties of “Husang 32” germination rate mentioned