| 汤秀华,郑树芳,许鹏,王文林,罗培四,覃振师,贺鹏.油梨嫁接苗分级标准探讨[J].中国南方果树,2019,48(5): |
| 油梨嫁接苗分级标准探讨 |
| A study on grading standard of Persea Americana Mill. grafting |
| 投稿时间：2018-10-25 修订日期：2018-12-28 |
| DOI：10.13938/j.issn.1007-1431.20180599 |
| 中文关键词: 油梨嫁接苗 逐步聚类分析 分级标准 |
| 英文关键词:Persea americana Mill. grafting gradual cluster analysis grading standard |
| 基金项目:广西南亚热带农业科学研究所2017自立项目（NYSZL201703） |
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| 中文摘要: |
| 通过逐步聚类分析方法，初步探讨了油梨嫁接苗的分级标准。分析得出以苗高和茎粗为油梨嫁接苗的分级质量指标，将油梨嫁接苗分为三级，即Ⅰ级苗：苗高≥74cm，茎粗≥1.13cm；Ⅱ级苗：74cm＞苗高≥66 cm，1.13cm＞茎粗≥0.93cm；Ⅲ级苗：苗高＜66cm，茎粗＜0.93cm。 |
| 英文摘要: |
| Preliminary discussion for the grading standard of Persea americana Mill. grafting was progressed by using the method of gradual cluster analysis. Seedling height and stem diameter were proposed as grading indexes of quality for Persea americana Mill. grafting. The following standards were produced for seedlings of the first to the third grade. The seedlings with the height of 74cm or above, stem diameter of 1.13cm or above were classified as grade one, those with height lower than 74cm but higher than or equal to 66cm, stem diameter lower than 1.13cm but higher than or equal to 0.93cm were classified as grade two, those with height lower than 66cm and stem diameter lower than 0.93cm were classified as grade three. |
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