滞育是家蚕良种繁育中一项十分重要的性状,它涉及蚕种制造,蚕种保护,冷藏和催青等技术措施的采用,以及选种工作中对原始材料的选择。因此,了解滞育的遗传性能及其和环境的关系,是做好以上各项工作的理论基础。家蚕的滞育是长期历史发展阶段中所形成的一种特性,它是受从喉下神经节所分泌的滞育激素所支配,这种激素通过体液传递到卵巢 Diapause is a very important trait in the silkworm breeding. It involves the adoption of technical measures such as silkworm eggs production, silkworm egg conservation, cold storage and catharsis, as well as the selection of raw materials during the selection work. Therefore, understanding the genetic properties of diapause and its relationship with the environment is the theoretical basis for doing all the above work. Diapause of silkworms is a characteristic of long-term historical development that is dominated by the diastolic hormone secreted from the hypoglossal ganglion, which is delivered to the ovary via bodily fluids