| 曾岳明,严邦祥,徐美青,等.多花黄精‘丽精1号’营养成分与海拔、郁闭度相关性研究[J].浙江中医药大学学报,2021,45(1):64-69, 74. |
| 多花黄精‘丽精1号’营养成分与海拔、郁闭度相关性研究 |
| Study on Correlation between the Nutritional Components of Polygonatum Cyrtonema ‘Lijing No.1’ and Altitude， Canopy Density |
| DOI：10.16466/j.issn1005-5509.2021.01.013 |
| 中文关键词: 多花黄精 丽精1号 新品种 营养成分 海拔 林分郁闭度 道地栽培 相关性分析 |
| 英文关键词: Polygonatum cyrtonema Lijing No.1 new varieties nutrients altitude stand canopy density genuine cultivation correlation analysis |
| 基金项目: |
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| 摘要点击次数: 2738 |
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| 中文摘要: |
| [目的]通过探究多花黄精新品种‘丽精1号’营养成分与海拔、林分郁闭度的相关性，筛选出适宜多花黄精道地栽培的条件。[方法]开展多花黄精新品种‘丽精1号’不同海拔和林分郁闭度的对比试验，采用双变量相关计算方法分析评价‘丽精1号’中5种一般营养成分、7种矿物质元素、15种氨基酸含量及其与海拔、林分郁闭度的相关性。[结果]多花黄精‘丽精1号’3年生根茎具有丰富的营养成分，其中黄精多糖11.31%～16.58%、蛋白质7.25%～7.87%、脂类3.00%～4.10%，矿物质元素钾3 125～6 160μg·g-1、钙3 412～3 820μg·g-1、镁452～526μg·g-1，含有7种必需氨基酸和8种非必需氨基酸，并具有“谷氨酸含量最高、蛋氨酸含量最低”的特点。多花黄精‘丽精1号’根茎的一般营养成分、矿物质和氨基酸含量与海拔、林分郁闭度具有相关性，其中钠(r=0.902，P=0.001)、锌(r=0.862，P=0.003)、谷氨酸(r=0.863，P=0.003)、脂类(r=0.683，P=0.043)与海拔呈正相关，黄精多糖(r=-0.812，P=0.009)、镁(r=-0.916，P=0.001)、蛋白质(r=-0.718，P=0.027)、7种必需氨基酸(r=-0.719，P=0.029)与海拔呈负相关；黄精多糖(r=0.936，P=0.000)、铁(r=0.778，P=0.013)与林分郁闭度呈正相关，锌(r=-0.907，P=0.001)、钠(r=-0.846，P=0.004)、谷氨酸(r=-0.679，P=0.044)与林分郁闭度呈负相关。[结论]多花黄精新品种‘丽精1号’根茎营养成分丰富。选择海拔400～770m、林分郁闭度0.6～0.7的林分套种多花黄精‘丽精1号’，更有利于黄精多糖、蛋白质、必需氨基酸等营养成分的积累。 |
| 英文摘要: |
| [Objective] By exploring the correlation between the new species of Polygonatum cyrtonema‘Lijing No.1’ with altitude and stand canopy density， the regional environmental conditions suitable for the cultivation of Polygonatum cyrtonema were selected. [Methods] By conducting the experiments of Polygonatum cyrtonema‘Lijing No.1’ of different altitudes and canopy density， the bivariate correlation calculation formula was used to analyze and evaluate the contents of 5 general nutrients， 7 mineral elements， 15 amino acids of ‘Lijing No.1’ and their correlation with altitude and stand canopy density. [Results] Polygonatum cyrtonema ‘Lijing No.1’ 3-year old rhizome is rich in nutrients， including polygonatum polysaccharide 11.31%～16.58%， proteins 7.25%～7.87%， lipids 3.00%～4.10%， mineral elements potassium 3 125～6 160μg·g-1， calcium 3 412～3 820μg·g-1， magnesium 452～526μg·g-1. ‘Lijing No.1’ contains 7 essential amino acids and 8 nonessential amino acids， and it has the highest glutamic acid content and the lowest methionine content. The general nutrition， mineral and amino acid content of the rhizome of Polygonatum cyrtonema‘Lijing No.1’ are significantly correlated with altitude and forest canopy density， sodium(r=0.902， P=0.001)， zinc(r=0.862，P=0.003)， glutamate(r=0.863，P=0.003)， lipids(r=0.683，P=0.043) are positively correlated with altitude； polygonatum polysaccharide(r=-0.812，P=0.009)， magnesium(r=-0.916， P=0.001)， protein(r=-0.718，P=0.027)， 7 essential amino acids(r=-0.719， P=0.029) is negatively correlated with altitude. Polygonatum polysaccharides(r=0.936， P=0.000)， iron(r=0.778， P=0.013) are positively correlated with stand canopy density， zinc(r=-0.907，P=0.001)，sodium(r=-0.846，P=0.004)，glutamate(r=-0.679，P=0.044) were negatively correlated with stand canopy density.[Conclusion]Polygonatum cyrtonema ‘Lijing No.1’ rhizome is rich in nutrients. It is more beneficial to the accumulation of Polygonatum polysaccharide， protein， essential amino acids and other nutrients by interplanting Polygonatum cyrtonema ‘Lijing No.1’ at altitude of 400～770m and stand canopy density of 0.6～0.7. |
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