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Position: Home > Articles > Effects of Different Light Intensities and Different Light Qualities on Growth of Tomato Seedlings Northern Horticulture 2017 (19) 72-75

不同光强与光质处理下对番茄幼苗生长的影响

作  者:
何伟明;刘庞源;武占会;刘明池
单  位:
北京市农林科学院蔬菜研究中心农业部都市农业(北方)重点实验室
关键词:
LED;光质;光强;幼苗生长
摘  要:
以番茄为试材,采用发光二极管(LED)作为光源,在260、200、150μmol·m~(-2)·s~(-1)光强下,研究红蓝混合光(R/B=5∶5、6∶4、7∶3)对番茄幼苗生长的影响。结果表明:在以红蓝光混合的LED灯作为光源时,增加蓝光的比例,可抑制番茄幼苗徒长;综合各性状表现,在光强200~260μmol·m~(-2)·s~(-1)、14h·d~(-1)光周期下,温度控制在25~20℃,红蓝光混合配比6∶4的LED光源有利于番茄幼苗生长。
译  名:
Effects of Different Light Intensities and Different Light Qualities on Growth of Tomato Seedlings
作  者:
HE Weiming;LIU Pangyuan;WU Zhanhui;LIU Mingchi;Beijing Vegetable Research Center,Beijing Academy of Agriculture and Forestry Sciences/Key Laboratory of Urban Agriculture(North),Ministry of Agriculture;
关键词:
LED;;light quality;;light intensity;;seedling growth
摘  要:
Tomato was used as material,effects of different light intensity and different light qualities generated by LED on growth of tomato seedlings were studied.Light intensities of 260,200,150μmol·m~(-2)·s~(-1) were designed with the complex light of red and blue LED(R/B=5∶5,6∶4,7∶3),compared to the treatment of white fluorescent light(CK).The results showed that increasing of blue light could inhibit the seedling spindling in the complex light of red and blue LED.Comprehensived various characteristics,under the conditions of 200-260μmol·m~(-2)·s~(-1) light intensity and 14h·d~(-1) photoperiod,the treatment of R/B=6∶4LED was suitable for the growth of tomato seedlings at 25-20℃.

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