育苗常见问题在生产中,必须使四季海棠地上部和地下部协调生长,才能获得壮苗。因而生产者要根据环境条件(主要是温度、光照)和植物长势来采取相应的控制措施。地上部与地下部发育不同步可采取的环境调控、栽培管理措施见表1。茎叶细弱、徒长四季海棠节间短缩,正常管理中很少发 Common problems in nursery production in the production, must be four seasons Begonia ground and underground coordination in order to grow strong seedlings. Therefore, producers should take corresponding control measures according to environmental conditions (mainly temperature and light) and plant growth. The control of the environment that can be taken when the above-ground part and the under-ground part develop out of sync is shown in Table 1. Thin stems, leggy Begonia internodes shortening, very few in the normal management