NDLI: Physiological and growth characteristics of Ginkgo biloba L. exposed to open field and shade enclosure during the reproductive stage

Content Provider	Springer Nature Link
Author	Wang, Yuwen Sun, Lingang Xu, Jingang Yu, Jing Zhang, Jingjing Wu, Min Ma, Jing Chen, Guoxiang
Copyright Year	2014
Abstract	The current study compares responses to open field and shade enclosure condition (plastic shading nets were used to imitate a natural shading rate) to test the possible benefit of shading in terms of physiological and growth characteristics in Ginkgo biloba L. during the reproductive stage in summer. Compared with the net shade treated plants (NS-plants), the open-field plants (O-plants) contained lower chlorophyll (Chl) a + b content and Chl a/b ratio, and exhibited a decreased ratio of Chl/Car. Results showed that the chlorophyll fluorescence characteristics including maximum PSII photochemical efficiency (F $_{ v }$ /F $_{ m }$), potential electron transport per excited leaf cross-section (ET$_{0}$/CS$_{0}$), potential electron transport per PSII reaction center (ET$_{0}$/RC), dissipation per excited leaf cross-section (DI$_{0}$/CS$_{0}$), dissipation per PSII reaction center (DI$_{0}$/RC), and overall performance index of PSII photochemistry on absorbtion basis (PI$_{ABS}$) were altered by the net shade treatment. It was observed that the grana were illegible and difficult to distinguish by transmission electron microscopy, especially, in the cells of O-plants in which phenols were observed in the vacuole. The phenomenon of photoinhibition induced by excessive irradiance was confirmed by the abnormally high levels of the reactive oxygen species. Moreover, antioxidant enzymes activities were induced by high irradiance in the ginkgo leaves. In addition, significant differences were observed in the fresh weight and dry weight of leaves and seeds. Comparison of the variation of underlying physiological and biochemical mechanisms suggested that there was a better efficiency of ginkgo plants under artificial net shade conditions. Therefore, ginkgo plant would be best grown at 30–35 % of natural irradiance in summer months to be more profitably harvested and then meet the increasing demand of leaves and seeds.
Starting Page	2671
Ending Page	2681
Page Count	11
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	36
Issue Number	10
e-ISSN	18611664
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-07-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Growth Physiological characteristics Ginkgo biloba L. High irradiance Plant Physiology Plant Genetics & Genomics Plant Biochemistry Plant Pathology Plant Anatomy/Development Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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