柞树主要靠种子繁殖。要建设蚕场,就应事先准备好柞树种子。在我省,柞树种子一般在九、十月分成熟。成熟的种子比不成熟的种子耐贮藏,发芽率高,生长健旺。成熟的种子种胚停止生长,种皮由绿色变为米黄色,壳斗与果实自然裂开,果实脱出。对于早熟,早落地已生根的种子,也可采集做种,不影响发芽。 Oak tree breeding mainly by seeds. To build the silkworm farm, oak tree seeds should be prepared in advance. In our province, oak tree seeds are generally mature in September and October. Mature seeds are more resistant to storage than mature seeds, with high germination rates and vigorous growth. Mature seed embryos to stop growing, the seed coat from green to beige, shell and fruit naturally cracked, fruit prolapse. For precocious, early-landed rooted seeds can also be collected to do species, does not affect the germination.