|Table of Contents|

Effects of Bagging Microenvironment on Growth and Activity of Photosystem II of Small Tomato in Greenhouse(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年02期
Page:
5-9
Research Field:
Publishing date:

Info

Title:
Effects of Bagging Microenvironment on Growth and Activity of Photosystem II of Small Tomato in Greenhouse
Author(s):
ZHAO Li-kun; GAO Zhi-kui; WANG Mei
College of Horticulture，Agriculture University of Hebei，Baoding，Hebei 071001
Keywords:
tomato; bagging; fruit; chlorophyll fluorescence; photosystem Ⅱ
PACS:
S 626.5
DOI:
-
Abstract:
Taking small tomato ‘Jiaxina’ as test material，the microenvironment inside 2 kinds of material fruit bags with the 2 vents ways of the polypropylene transparent plastic film bag (TPF) and the 2 vents ways of the polyethylene white paper film bag (WPF) on its growth，quality，chlorophyll (Chl a and Chl b) and photosystem Ⅱ(PSⅡ) influence were studied.The results showed that the temperature which inside the bags with TPF and WPF was obviously decreased，the transmission rate of the TPF was higher than the WPF，the volume of fruit and the weight of fruit were increased，the weight of fruit and the volume of fruit inside the WPF with 8 holes were remarkably increased compared with CK.The soluble sugar，vitamin C and free amino acids of tomato with the fruit bagging were not changed remarkably compared with CK，which improved the negative effect of bagging on tomato fruit quality，comprehensive comparison of its growth quality，the evaluation of fruit comprehensive with the WPF were higher than those of TPF.Meanwhile，the chlorophyll（Chl a and Chl b）of tomato with the fruit bagging was remarkably lower than CK in growth process，the chlorophyll（Chl a）of tomato with the fruit bagging was lower than CK in 30～40 d.The Fv/Fm of TPF and WPF was not changed remarkably compared with CK；compared with CK，the Y(Ⅱ) of WPF was remarkably lower in 10～20 d，the Y(Ⅱ) of TPF was lower in 30 d;the quantum yield of regulated energy dissipation Y(NPQ) of WPF was remarkably higher in 20 d，and the quantum yield of non-regulatory energy dissipation Y(NO) of all of the treatments was to 1 in 40 d.In short，the actual photochemical efficiency of PSII of the fruit inside the WPF with lower transmission rate was come down，meanwhile，distributed energy flow was more dependent upon the quantum yield of non-regulatory energy dissipation(Y(NO)).

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Last Update: 2014-08-30