福建农业学报2025，Vol.40Issue(11)：1149-1159,11.DOI:10.19303/j.issn.1008-0384.2025.11.007
基于农艺性状和多糖的多花黄精新品种最佳采收期研究
Harvest Time for New varieties of Polygonatum cyrtonema Based on Agronomy and Polysaccharide Content of Plants
摘要
Abstract
[Objective]Based on agronomic traits and polysaccharide content of the plants,optimal times to harvest two newly certified Polygonatum cyrtonema Hua were determined using PCA and CRITIC analyses.[Methods]Agronomic characteristics of two newly certified Polygonatum cyrtonema Hua,the round-leaf Minyuanjing No.1(Min Renyao 2024002)and the long-leaf Minchangjing No.1(Min Renyao 2024003),were continuously observed from May through October with polysaccharide content of the plants monitored.One-way ANOVA,PCA,cluster,and CRITIC analyses were performed for correlation between the two sets of the collected data to determine the optimal time for harvest.[Results]As the plants grew,the polysaccharide contents in Minyuanjing No.1 and Minchangjing No.1 rose gradually to peak in October at(14.23%±1.62%)and(15.80%±1.55%),respectively.In addition,the average stem diameter of both Minyuanjing No.1 and Minchangjing No.1 exceeded 8 mm.The measurements correlated significantly with the stem diameter,fresh leaf weight,fresh stem weight and weight of fresh root of the plants(P＜0.01),while the three top principal components explained 60.50%of the variance on rhizome and roots.A cluster analysis classified the two cultivars at 5 harvest times into three groups.And since Minyuanjing No.1 in September and Minchangjing No.1 in October received the highest CRITIC comprehensive scores(S),optimal months for harvest of the two cultivars were selected.The regression equation obtained for S and agronomic traits was S=0.204+0.164×total plant height+0.230×fresh stem weight+0.163×fresh rhizome weight with R2=0.715 and statistical significance at P＜0.01.[Conclusion]September was determined to be the time to harvest Minyuanjing No.1,and October,Minchangjing No.1 largely.The accumulation of polysaccharides can be predicted by monitoring stem diameter(＞8 mm),and it is recommended to focus on cultivation management.This study provides a scientific basis for the accurate harvesting of P.cyrtonema.关键词
多花黄精/闽长精1号/闽圆精1号/农艺性状/采收时期/多糖含量Key words
Polygonatum cyrtonema/Minchangjing No.1/Minyuanjing No.1/agronomic traits/harvest time/polysaccharide content分类
医药卫生引用本文复制引用
郑梅霞,郑回勇,方扬辉,廖鹏辉,刘伟,苏海兰,朱育菁,朱雁鸣,牛雨晴,李鸾翔..基于农艺性状和多糖的多花黄精新品种最佳采收期研究[J].福建农业学报,2025,40(11):1149-1159,11.基金项目
福建省科技计划重大专项(2022NZ029017) （2022NZ029017）
福建省科技计划公益类专项(2023R1104) （2023R1104）
福建省农业科学院优秀科技创新人才专项(YCZX202501) （YCZX202501）
