尤力克柠檬叶片营养元素标准的研究  

Study on the Standard of Nutrient Elements Contents in Eureka Lemon Leaves

作　　者：汪红秀 周上铃 何绍国 田再泽 马静华 彭良志[1] 淳长品[1] WANG Hongxiu;ZHOU Shangling;HE Shaoguo;TIAN Zaize;MA Jinghua;PENG Liangzhi;CHUN Changpin(National Citrus Engineering Research Center,Citrus Research Institute,Southwest University/Chinese Academy of Agricultural Sciences,Chongqing 400712,China;Nanchong Academy of Agricultural Sciences,Nanchong,Sichuan 637000,China;Development Center of Anyue Lemon Industry,Anyue,Sichuan 642350,China)

机构地区：[1]西南大学/中国农业科学院柑桔研究所,国家柑橘工程技术研究中心,重庆400712 [2]南充市农业科学院果树研究所,四川南充637000 [3]安岳县柠檬产业发展中心,四川安岳642350

出　　处：《园艺学报》2023年第7期1535-1546,共12页Acta Horticulturae Sinica

基　　金：国家重点研发计划项目(2021YFD1600805);财政部和农业农村部:国家现代农业产业技术体系(CARS-26)。

摘　　要：以四川安岳和重庆铜梁70个尤力克柠檬果园的果实和叶片为试验材料,测定其果实品质和叶片主要营养元素,通过建立柠檬果实品质综合评价模型,将柠檬果园分为优质果园和普通果园,根据果园等级制定尤力克柠檬叶片营养诊断标准。结果表明:果实品质主成分分析提取了4个主成分,其累计贡献率为80.54%,根据主成分分析结果计算各个果园综合评分并排序,作为划分果园等级的指标。对柠檬叶片营养元素研究表明,N、K、Zn、B营养元素遵循正态分布,P、Ca、Mg、S、Fe、Mn、Cu近似χ^(2)分布;对于符合正态分布的元素采用4点5分段的概率分级法,将其分为缺乏、偏低、适宜、偏高和过量5个级别,对于不符合正态分布的元素参考优质果园的叶片营养元素值和现有标准进行矫正,初步制定了尤力克柠檬叶片营养元素的诊断标准。In the present study,the fruits and leaves from 70 different Eureka lemon orchards in Anyue County of Sichuan Province and Tongliang District of Chongqing were used as experimental materials to determine their main fruit quality parameters and the contents of leaf nutrient elements.The lemon orchards were divided into superior quality and normal orchards based on a established comprehensive evaluation model for lemon fruit quality.The criteria of nutrition diagnosis for Eureka lemon leaves was formulated according to the different grades of orchards.The results showed that four principal components were extracted from the fruit quality principal component analysis with a cumulative contribution of 80.54%.The results of the principal component analysis were used to calculate and rank the overall score of each orchard,which was used as an indicator to classify the orchards.The study of nutrient elements in lemon leaves of different orchards showed that N,K,Zn and B had a normal distribution,while P,Ca,Mg,S,Fe,Mn,and Cu were approximately χ^(2) distributed.The standardized probability grading method was used to divide normally distributed elements into five levels:eficiency,lower,normal,higher,and excess.For elements that did not conform to the normal distribution,the probability classification method was corrected by referring to the nutrient elements in the leaves of superior quality orchards and the existing standard.In conclusion,preliminary standard for the nutrient elements of Eureka lemon leaves was developed.

关 键 词：柠檬 果实 品质 主成分分析 综合评价 营养诊断 

分 类 号：S666.5[农业科学—果树学]