基于因子分析的海拔及土壤质地对番茄品质的影响
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S641.2

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河北省农业科技成果转化资金专项(20826902D);石家庄市科学技术研究与发展技术项目(199490392A);石家庄市农林科学研究院设施蔬菜创新团队项目(208790016A)


The Influence of Altitude and Soil Texture on Tomato Quality Based on Factor Analysis
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    摘要:

    为了解不同海拔及土壤质地对番茄品质的影响,本研究以4个番茄品种为试材,分别在较高海拔沙壤土、较低海拔沙壤土和较低海拔壤土的3个地块进行试验,果实成熟后测定可溶性固形物含量、可滴定酸含量等11项品质指标,通过因子分析对果实品质进行评价。结果表明,11项番茄果实品质指标可归为3个公因子(F1~F3),累计方差贡献率为86.70%,F1解释指标有磷元素、钾元素和镁元素,F2解释指标有可滴定酸含量、固酸比和糖酸比,F3解释指标有可溶性固形物含量和可溶性糖含量,结合各因子贡献率建立番茄品质评分公式:综合得分=(0.331 1F1+0.278 8F2+0.257 1F3)/0.867 0。对比不同海拔的果实品质可得,海拔53.7 m基地果实的F1得分较高,海拔611.4 m基地果实的F2、F3得分较高,海拔611.4 m基地果实的综合得分较高;对比沙壤土和壤土的果实品质,3个公因子均为沙壤土得分较高,由此可知,较高海拔和沙壤土栽培更有利于番茄品质的提升。

    Abstract:

    In order to understand the effects of different altitudes and soil textures on tomato quality, this study used4 tomato varieties as test materials, and tested them on sandy loam soil at higher altitude, sandy loam at lower altitude and loam at lower altitude. Eleven quality indicators such as soluble solids and titratable acid of mature fruits are evaluated by factor analysis. The results show that after analyzing 11 indicators, 3 common factors(F1-F3) are obtained, and the cumulative variance contribution rate is 86.70%. F1explanatory indicators include phosphorus, potassium and magnesium, and F2 explanatory indicators include titratable acid content, Solid-acid ratio and sugaracid ratio, F3 explanatory indicators include soluble solids and soluble sugars, combined with the contribution rate of each factor to establish tomato quality scoring standards: comprehensive score =(0.331 1F1+0.278 8F2+0.257 1F3)/0.867 0. Comparing the fruit quality at an altitude of 611.4 m and an altitude of 53.7 m, the fruit at an altitude of53.7 m has a higher score for the first common factor, but the second and third common factors are higher at an altitude of scores 611.4 m. Taken together, the fruit at an altitude of 611.4 m has a higher comprehensive score. Comparing the fruit quality of sandy loam soil and loam soil, the scores of the three common factors are higher in sandy loam soil, and the comprehensive score is higher in sandy loam soil. Therefore, higher altitude and sandy loam cultivation are more conducive to the improvement of tomato quality.

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王丹丹,王佳豪,李燕,董晓旭,贾红卫,吕远,师建华,田国英.基于因子分析的海拔及土壤质地对番茄品质的影响[J].东北农业科学,2023,48(5):97-101.

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  • 收稿日期:2020-09-14
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  • 在线发布日期: 2024-10-25
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