|Table of Contents|

Photosynthetic Characteristics of Different Chinese Cherry in Central Guizhou

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年02
Page:
32-38
Research Field:
Publishing date:

Info

Title:
Photosynthetic Characteristics of Different Chinese Cherry in Central Guizhou
Author(s):
FENG Jianwen; LUO Lei; XIE Pu; SONG Sha; HAN Xiumei; WU Yawei
(Citrus Fruit Research Institute,Guizhou Acacdemy of Agricultural Sciences，Guiyang，Guizhou 550006)
Keywords:
central Guizhou; Chinese cherry; net photosynthetic rate; chlorophyll fluorescence; light response
PACS:
-
DOI:
10.11937/bfyy.20191202
Abstract:
The photosynthetic physiological characteristics of different Chinese cherry (Cerasus pseudocerasus L.) resources in the weak solar radiation environment of central Guizhou were studied，using three Chinese cherry resources(3-year-old plants) from Guizhou Province as test materials，by measuring leaf chlorophyll content，chlorophyll fluorescence and light response parameters，in hope to provide theoretical basis for the management and cultivation of Chinese cherry.The results showed that in the three Chinese cherry leaves the SPAD values had extremely significant positive correlation with the relative content of chlorophyll a (Chl a)，chlorophyll b (Chl b) and chlorophyll(a+b)(Chl a+b).Which indicated that,with the SPAD value of leaves fast determined，the nutritional diagnostic instrument (TYS-3N) could be used as a simple and accurate field detection method for cherry chlorophyll content.Leaves from Xiluo Township in Jinsha County (JSXL) had the highest chlorophyll content，but its net photosynthetic rate (Pn) was smaller than that of Zhijin County Babu Town (ZJBB) as well as Shuicheng County Hongyan Township (SCHY)，no significant correlation was found between chlorophyll content and net photosynthetic rate.High excess light energy (1-qP)/NPQ of JSXL leaves，low non-photochemical quenching coefficient (NPQ)，the leave′s excess light energy increases，photosynthetic electron transfer efficiency decreases，resulted a minimal photosynthetic heat dissipation，which could be one of the factors for the lower Pn value of JSXL.In summary，the three cherry resources had been adapted to the weak solar radiation environment in central Guizhou.The open vase tree form used in cultivation help receiving more effective photosynthetic radiation and improve photosynthetic efficiency.

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Last Update: 2020-02-22