|Table of Contents|

Effects of Light Quality on Growth and Photosynthetic Physiology Characteristics of Asarum heterotropoides Fr.schmidt var.mandshuricum (Maxim) kitag

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年03
Page:
107-117
Research Field:
Publishing date:

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Title:
Effects of Light Quality on Growth and Photosynthetic Physiology Characteristics of Asarum heterotropoides Fr.schmidt var.mandshuricum (Maxim) kitag
Author(s):
ZHANG Min; WANG Ziqing; QUAN Xingzhou; ZHAO Guangyuan; ZHANG Rui; WANG Zhiqing
(College of Herbal Medicine,Jilin Agricultural University,Changchun,Jilin 130118)
Keywords:
Asarum heterotropoides Fr.schmidt var.mandshuricum (Maxim) kitag; chlorophyll; leaf mass per area; diumal variation of photosynthesis; enzyme activity
PACS:
-
DOI:
10.11937/bfyy.20211222
Abstract:
Taking five-year-old Asarum heterotropoides Fr.schmidt var.mandshuricum (Maxim) kitag as the test materials,six optical filter colorful films and black nylon net having 50% transmittance were conducted to adjust the light quality(Ⅰ-Ⅶ) in the shed.Growing status,leaf mass per area,photosynthetic pigment content,diurnal variation of photosynthesis,protective enzyme activities and malondialdehyde of A.heterotropoides Fr.schmidt var.mandshuricum (Maxim) leaves were detected,in order to study the effect of light quality on growth and photosynthetic physiology characteristics of Asarum heterotropoides Fr.schmidt var.mandshuricum (Maxim) kitag.The results showed that under light qualityⅥ,plants grew well from May to June only and the leaves began to wither gradually in mid July,however,plants grew well in the every growth stages under other light quality conditions and yield increasing rate was 63.30%Ⅳ>60.00%Ⅴ>56.30%Ⅱ>43.30%Ⅰ>35.30%Ⅶ>28.30%Ⅲ.Photosynthetic pigment content,average value of diurnal net photosynthetic rate and leaf mass per area grew under light quality Ⅳ and Ⅴwere significantly higher than those under other light quality conditions (P<0.05).Leaves grew under every light quality condition,there were significant negative correlation between net photosynthetic rate and ambient temperature (P<0.05),significant positive correlation between transpiration rate and ambient temperature (P<0.05),and significant negative correlation between net photosynthetic rate and intercellular carbon dioxide concentration (P<0.01).Activities of superoxide dismutase and catalase of leaves grew under light quality Ⅳwere the highest in all light quality conditions.Activities of peroxidase of leaves under light quality Ⅳwere higher than other light quality conditions.Content of malondialdehyde of leaves under light quality Ⅵwas the highest among all light quality conditions in July.Under each light quality condition,catalase activity decreased gradually,while superoxide dismutase activity and malondialdehyde content reached their maximum in July and August respectively and then decreased,and peroxidase activity increased constantly.The accumulation of organic substances of plantscan be promoted by light quality Ⅳ and Ⅴ by covering optical filter green film and purple film.

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Last Update: 2022-05-04