西北林学院学报2025，Vol.40Issue(4)：56-64,75,10.DOI:10.3969/j.issn.1001-7461.2025.04.07
云南元江引种椰枣种实多样性研究
Fruit and Seed Diversity of Introduced Phoenix dactylifera in Yuanjiang of Yunnan Province
摘要
Abstract
Analysis of diversity of fruit and seed traits(FSTs)of 32 P.dactylifera plants introduced in Yuanjiang,Yunnan Province was carried out,and the excellent single plant in the population was prelimina-rily identified,which provided the basis for further research and breeding of improved varieties.11 parame-ters of 32 P.dactylifera plants were measured.The methods of Shannon-Wiener index and principal com-ponent analysis etc.were employed to interpret the diversity of FSTs,and primarily to determine the excel-lent individual plants in the population.The mean transverse and longitudinal diameters(TD and LD)of fruits,single fruit dry weight(SFDM),and fruit edible rates(FER)of the 32 P.dactylifera plants were 1.9-2.7 cm,2.9-4.2 cm,1.9-5.6 g,and 77.8％—94.9％,respectively;the coefficient of variation(CV)for fresh seed weight(FSW)was the highest(29.9％),followed by SFDM(29.7％),with CV of FER the lowest(5.3％).SFDM was significantly positively correlated with the other parameters(P＜0.05 or P＜0.01).The FER was significantly negatively correlated with fruit moisture content,TD and LD of seed,seed fresh weight,and seed moisture content(P＜0.01).A comprehensive score of ≥ 1.000 was identified as the breeding standard for improved varieties,with 5 plants selected from 32 individual plants,which accounting for 15.6％of the total plants.The fruit and seed variety of the single plant of P.dac-tylifera is rich,and the proportion of excellent single plant in the population is low,so the breeding of good varieties is important to increase its yield and value.关键词
椰枣/种实性状/多样性/优良单株Key words
Phoenix dactylifera/fruit and seed traits/diversity/excellent single plants分类
农业科技引用本文复制引用
丁兵,李莲芳,王慷林,王文俊,杨力颖,武程鹏..云南元江引种椰枣种实多样性研究[J].西北林学院学报,2025,40(4):56-64,75,10.基金项目
"十四五"国家重点研发计划项目(2021YFD2200501_5). （2021YFD2200501_5）
