四季海棠种粒特别小,1克种子约为70000粒,虽然国际上采用了包衣技术,但是由于其子叶小,长势慢,极容易在喷水(雾)时丢失,现在国际发达的育苗技术其成苗率也只在50%左右。为了克服四季海棠成苗率低的弱点,笔者采用发芽盒进行育苗,将成苗率提高到85%以上,现将主要技术介绍如下:发 Four seasons Begonia seed particularly small, about 1 million grams of seeds is about 70,000, although the international use of the coating technology, but because of its cotyledons is small, slow growth, very easy to lose in the water spray (fog), now developed seedling technology Its seedling rate is only about 50%. In order to overcome the weakness of the four seasons Begonia into a low seedling rate, the author used germination box nursery, the seedling rate increased to 85% or more, now the main technology are as follows: