| 甘孜州核桃优树选择研究 |
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| 引用本文： | 姜欣华,帅伟,夏苗,余海清,王晓英,李静,童海川,马文宝,吴万波.甘孜州核桃优树选择研究[J].现代农业科技,2023(14). |
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| 作者姓名： | 姜欣华 帅伟 夏苗 余海清 王晓英 李静 童海川 马文宝 吴万波 |
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| 作者单位： | 甘孜藏族自治州林业科学研究所,甘孜藏族自治州林业科学研究所,甘孜藏族自治州林业科学研究所,甘孜藏族自治州林业科学研究所,甘孜藏族自治州林业科学研究所,甘孜藏族自治州林业科学研究所,丹巴县林业和草原局,四川省林业科学研究院,四川省林业科学研究院 |
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| 基金项目： | 甘孜藏族自治州乡村振兴战略专项经费，与四川省林业科学研究院院州合作项目“核桃良种选育及丰产栽培技术研究与示范推广”（甘财农[2018]164号） |
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| 摘 要： | 本研究结合甘孜州历年核桃质量监测数据，通过群众和当地林业部门推荐、实地调查等方法，初选52株表现较好的核桃，复选33株优树建立了档案后经连续3年的指标监测，终选12株核桃优树。用主成分分析法对12株优树经济性状（三茎均值、单果重、单果仁重、果壳厚度、出仁率等）进行分析，确定12株优树综合排名（排名前三的依次是LDW-2、DBZ-1、BTB-6）。研究表明，优树选择研究在核桃各项指标监测的基础上用主成分分析法能得到更高效、更精确、更科学的优树综合排名。
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| 关 键 词： | 核桃 优树 经济性状 主成分分析 |
| 收稿时间： | 2022/11/4 0:00:00 |
| 修稿时间： | 2022/11/4 0:00:00 |
The study on superior tree selection of Walnut in Ganzi Prefecture |
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| Authors: | XIA Miao and |
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| Institution: | Forestry Research Institute of Garze Tibetan Autonomous Prefecture,,,,,, |
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| Abstract: | The study, combined with the previous monitoring quality data of walnut in Garze Tibetan Autonomous Prefecture, through the masses and local forestry department recommending, on-the-spot investigation and other methods, preliminarily selects 52 walnuts, then re-elects 33 superior trees, and which are monitoried three consecutive years of index after establishing archives for them, and finally selects 12 superior trees. Principal component analysis is used to 12 superior trees economic traits (three stem mean, single fruit weight, single kernel weight, fruit shell thickness, kernel rate, etc.) and the comprehensive ranking of 12 superior trees is determined (the top three are successively LDW-2, DBZ-1, and BTB-6). The study shows that principal component analysis can be used to obtain a more efficient, more accurate and more scientific comprehensive ranking of the superior trees on the basis of the monitoring of various walnut indicators. |
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| Keywords: | Walnut Superior trees Economic traits Principal component analysis |
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