|Table of Contents|

Effects of LED Light Quality on Growth and Physiology Characteristics of Hippeatrum spp.

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年22
Page:
66-71
Research Field:
Publishing date:

Info

Title:
Effects of LED Light Quality on Growth and Physiology Characteristics of Hippeatrum spp.
Author(s):
QIE Yawei
(Guang′an Vocational and Technical College,Guang′an,Sichuan 638000)
Keywords:
Hippeatrum spp.; LED light quality; growth; antioxidant enzymes; physiological characteristics
PACS:
-
DOI:
10.11937/bfyy.20194926
Abstract:
Hippeatrum spp.seedlings were used as the experiment materials,and six different light emitting diodes (LEDs) treatments,including white light (CK),blue light (B),red and blue composite lights RB(1∶3),RB(1∶1),RB(3∶1) and red light (R) were used to study the effects of different LEDs light qualities on growth,physiological characteristics of Hippeatrum spp.seedlings,so as to select the best LED quality for its growth and to lay a theoretical foundation and technical support for the usage of LED light quality control technology in the production of high quality Hippeatrum spp.seedlings.The results showed that compared with the CK,the growth index of Hippeatrum spp.seedlings under red and blue composite lights were improved,under RB(1∶3) treatment,the plant fresh weight,plant dry weight,root length,root number,and bulb diameter were 1.16,1.40,1.46,1.54 and 1.35 fold higher than CK,respectively.The R treatment had negetive effect on the biosynthesis of chlorophyll,a certain proportion of red and blue composite lights could promote chlorophyll synthesis,and RB (1∶3) treatment had the highest chlorophyll content,which was 1.22 fold higher than CK;RB (3∶1) was beneficial to the accumulation of soluble sugar in Hippeatrum spp.seedlings,and blue light increased the content of soluble protein.Compared with CK,the MDA content,SOD and POD activities in Hippeatrum spp.seedlings under RB(1∶3) treatment were significantly lower,indicating that RB (1∶3) treatment could significantly reduce the degree of membrane lipid peroxidation.In general,RB (1∶3) treatment was beneficial to the growth,biomass accumulation as well as the synthesis of photosynthetic pigments of Hippeatrum spp.seedlings,and the degree of membrane lipid peroxidation was also low.RB (1∶3) was the suitable light quality condition for the growth of Hippeatrum spp. seedlings.

References:

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Last Update: 2021-02-02