采收前光照处理对罗勒生长与品质的影响
Effects of Pre-harvest Light Treatments on the Growth and Quality of Basil
魏嵘喆 1任芮萱 1甘梦瑶 1李志鑫 1陈晓暖 1马任驰 1陈丽平 1闫征南1
作者信息
- 1. 青岛农业大学园艺学院,山东青岛 266109
- 折叠
摘要
为调控罗勒(Ocimum basilicum L.)植株的生长发育和品质,以'紫叶罗勒'为试材,于人工气候室内,在采收前7 d设置不同光强与光周期组合(224 μmol·m-2·s-1×16 h·d-1、224 μmol·m-2·s-1×24 h·d-1、330 μmol·m-2·s-1×16 h·d-1),探究采收前不同光照处理对罗勒植株形态、生物量和品质的影响.结果表明:与对照(224 μmol·m-2·s-1×16 h·d-1)相比,连续光照(224 μmol·m-2·s-1×24 h·d-1)处理的罗勒植株株高和茎粗分别提高了19.1%和20.6%,罗勒植株的地上部鲜质量、干质量和地下部干质量分别提高了26.2%、41.7%和115.0%,罗勒叶片的维生素C含量增加了47.1%.此外,使用主成分降维分析的方法对各指标进行分析及综合评价,结果显示:224 μmol·m-2·s-1×24 h·d-1 和330 μmol·m-2·s-1×16 h·d-1 处理均优于224 μmol·m-2·s-1×16 h·d-1 处理,且224 μmol·m-2·s-1×24 h·d-1 处理的罗勒植株综合得分及排名第一.综上所述,在完全可控的环境条件下,采收前短期连续光照处理能够提高罗勒植株产量和品质.
Abstract
In order to regulate the growth,development,and quality of basil(Ocimum basilicum L.)plants,the'purple leaf basil'in artificial climate chamber was used as the test material,different combina-tions of light intensity and photoperiod were set with 224 μmol·m-2·s-1×16 h·d-1,224 μmol·m-2·s-1×24 h·d-1,330 μmol·m-2·s-1×16 h·d-1 in the last 7 days before harvesting.The results showed that compared with the control(224 μmol·m-2·s-1×16 h·d-1),the plant height and stem diameter of basil plants were increased by 19.1%and 20.6%,respectively;the shoot fresh weight,shoot dry weight and root dry weight of basil plants were increased by 26.2%,41.7%,and 115.0%,re-spectively;and the vitamin C content of basil leaves was increased by 47.1%.In addition,the dimension-ality reduction method of principal component analysis was used to analyze each index.The method of comprehensive evaluation was obtained that the treatments with 224 μmol·m-2·s-1×24 h·d-1 and 330 μmol·m-2·s-1×16 h·d-1 were better than the treatment with 224 μmol·m-2·s-1×16 h·d-1,and the comprehensive scores of the basil plants treated with 224 μmol·m-2·s-1×24 h·d-1 ranked first.In conclusion,short-term continuous light before harvesting improves growth and quality of basil plant under fully-controlled environmental conditions.
关键词
光照/罗勒/生长/采收前/品质/维生素CKey words
light/basil/growth/pre-harvest/quality/vitamin C引用本文复制引用
基金项目
山东省乡村振兴科技创新提振行动计划(2021TZXD007)
山东省自然科学基金青年项目(ZR2021QC174)
青岛农业大学大学生创新创业训练项目()
出版年
2024
NETL
NSTL
万方数据