摘要
通过为期2年的调查分析,提出了嫁接苗可按根基直径分成3个等级,即小苗:5.0~6.9mm、中苗:7.0~9.9mm、大苗:大于等于10.0mm。
Based on the two years' investigation, it was carried out that the graftedsaplings could be classified 3 grades accord1ng to the diarneter of root primordium, namelysmall sapling (5. 0~6. 9mm), middle sapling (7. 0 ~ 9. 9mm) and big sapling (not less than10.0mm ).
出处
《蚕桑通报》
1999年第1期30-32,共3页
Bulletin of Sericulture
关键词
嫁接苗
等级
分级标准
桑树
Grafted sapling
grade and grading standard