[1]何朋蔚,阳树英,卢安琪,等.相同DLI下不同光照周期与强度对半结球生菜及上海青生长形态和营养品质的影响[J].江苏农业科学,2024,52(18):160-168.
 He Pengwei,et al.The influences of different light exposure periods and intensities on growth morphology and nutritional quality of lettuce and pakchoi under equivalent DLI (daily light integral)[J].Jiangsu Agricultural Sciences,2024,52(18):160-168.
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相同DLI下不同光照周期与强度对半结球生菜及上海青生长形态和营养品质的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第52卷
期数:
2024年第18期
页码:
160-168
栏目:
园艺与林学
出版日期:
2024-09-20

文章信息/Info

Title:
The influences of different light exposure periods and intensities on growth morphology and nutritional quality of lettuce and pakchoi under equivalent DLI (daily light integral)
作者:
何朋蔚12阳树英12卢安琪12周嘉毅12江怀军3王汝旭12陈勇良12廖绪胤12
1.湖南农业大学环境与生态学院,湖南长沙410128;2.洞庭湖区农村生态系统健康湖南省重点实验室,湖南长沙410128;3.湖南山峰农业发展股份有限公司,湖南邵阳422211
Author(s):
He Pengweiet al
关键词:
半结球生菜上海青日累积光量光照周期光照度生长形态营养品质
Keywords:
-
分类号:
S636.204;S634.304
DOI:
-
文献标志码:
A
摘要:
以半结球生菜(Lactuca sativa L.)和上海青(Brassica chinensis L.)为试验材料,使用LED作为光源,在相同日累积光量(daily light integral,DLI)下,探究不同光照周期(8、12、16、20 h/d)与光照度[378、252、189、151 μmol/(m2·s)]组合对作物生长形态及营养品质的影响。结果表明:相同DLI下,合理延长光照周期、降低光照度可提升半结球生菜及上海青光合能力及电能利用效率,促进根系生长,缩短种植周期,增加生物量积累,并提升营养品质,但易增加作物硝酸盐、亚硝酸盐含量的积累。不同作物对光照组合变化的响应具有一定的差异性。本试验条件下,16 h/d、189 μmol/(m2·s) 的光照组合利于增加半结球生菜及上海青产量,同时提升半结球生菜营养品质,而 12 h/d、252 μmol/(m2·s)的光照组合更利于提高上海青营养品质。光照时长由8 h/d延长至16 h/d,半结球生菜的叶片数、株高、根长、单株干重、可溶性蛋白、游离氨基酸、可溶性糖、纤维素及维生素C含量分别增加20.3%、9.7%、148.1%、127.3%、41.5%、55.2%、83.2%、34.3%和3.4%,上海青分别增加26.0%、18.2%、117.3%、139.0%、213%、778%、74.2%、23.7%和3.5%。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2023-10-30
基金项目:国家重点研发计划子课题(编号:2017YFD200803-01);国家自然科学基金面上项目(编号:31471446);中央引导地方科技发展基金(编号:2023ZYQ048)。
作者简介:何朋蔚(1999—),男,湖南长沙人,硕士,主要从事农业生态学方面的研究。E-mail:happyway1124@163.com。
通信作者:阳树英,博士,教授,从事农业生态学方面研究。E-mail:ysyalxh@126.com。
更新日期/Last Update: 2024-09-20