浙江农业学报2026，Vol.38Issue(5)：934-943,10.DOI:10.3969/j.issn.1004-1524.20250449
不同霜冻胁迫时间下霜桑叶品质的变化
Changes in the quality of frost mulberry leaf under different frost stress periods
摘要
Abstract
To investigate the impact of frost stress on the quality of frost mulberry leaves,this study systematically in-vestigated the dynamic changes of seven key quality indicators(moisture content,fat content,flavonoids content,to-tal phenols content,fiber content,tannin content and protein content)in mulberry leaves under different frost stress periods(6,12,18,and 24 d)using eight mulberry varieties.The results showed that most quality indicators(fat and moisture content)peaked under short-term stress(6 d,5℃).Pearson correlation analysis revealed significant(p<0.05)correlations among these indicators.Based on principal component analysis,five key indicators,fat con-tent,total phenols content,flavonoids content,fiber content,and protein content,were proposed.The comprehen-sive evaluation revealed that Jingbo mulberry achieved the highest score under6-day(5℃)frost stress,followed by Jing mulberry under 24-day(0℃)frost stress.Hanza mulberry,Wubao mulberry,and Fengchi2 exhibited compa-rable quality under short-term stress,ranking third,fourth and fifth,respectively.This study provides theoretical support for frost-resistant mulberry breeding and the precise harvesting of frost mulberry leaf.关键词
霜冻胁迫/桑树种质资源/桑叶品质/主成分分析Key words
frost stress/mulberry germplasm resources/quality of mulberry leaf/principal component analysis分类
农业科技引用本文复制引用
李佳奇,胡宽莲,沈子靖,史建国,何韵..不同霜冻胁迫时间下霜桑叶品质的变化[J].浙江农业学报,2026,38(5):934-943,10.基金项目
陕西省重点研发计划一般项目(2024JC-YBQN0224) （2024JC-YBQN0224）
陕西省教育厅重点科研计划项目(23JS069) （23JS069）
榆林市科协青年人才托举计划(20230507) （20230507）
榆林市科技计划项目(2024-CXY-131) （2024-CXY-131）
榆林学院博士科研启动基金项目(2023GK11) （2023GK11）
2025年研究生创新基金项目(2025YLYCX44) （2025YLYCX44）
