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桑树嫁接苗等级和分级标准研究
Studies on the Grafted Sapling Grade of Mulberry Tree and Its Grading Standard
【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。
【Abstract】 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 ).
- 【文献出处】 蚕桑通报 ,BULLETIN OF SERICULTURE , 编辑部邮箱 ,1999年01期
- 【分类号】S888
- 【下载频次】26