|Table of Contents|

Effects of Chitosan on Photosynthetic Characteristics of Flag Leaf in Rice Under Low Temperature(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2010年04期
Page:
75-79
Research Field:
生命科学
Publishing date:

Info

Title:
Effects of Chitosan on Photosynthetic Characteristics of Flag Leaf in Rice Under Low Temperature
Author(s):
Sun Lei1; 2; 3; Chen Guoxiang1; Lü Chuangen4; Cheng Jialing2; 3
1.School of Life Sciences,Nanjing Normal University,Nanjing 210046,China 2. Jiangsu Un iversity of Science and Technology, Zhen jiang 212003, Chin a 3. The Sericu ltural Research Inst itute, Ch inese A cad em y of Agricu ltu ral Sciences, Zhen jiang 212018, Ch ina 4. Inst itute of Food& C rop s, J iangsu A cadem y of Agricu ltu ral Sciences, N an jing 210014, C h ina
Keywords:
flag leaf in r ice;  low tem pera ture;  ch itosan;  thy lkako id m em brane;  spectra;  electron transpo rt ac tiv ities;  ch lorophy ll fluorescence param e ter
PACS:
S511
DOI:
-
Abstract:
Th is article studies the e ffect o f exogenous ch ito san on pho tosynthetic character istics of flag leaf in rice under low tem perature. The resu lts show ed: dur ing ch illing, 0.5% o f ch itosan in solution could m itigate the injury on chlorophy ll con tent o f flag lea,f e lectron transport activ ities of photosy stem s ( PSI and PSII)、absorption spectra, Fo、qN inc reased and Fv /Fm、qP decreased, whereas the extents w ere less. The cu ltivar sprayed w ith ch itosan increased the qN to d issipate superfluous so lar energy abso rbed and m aintained the higher pho to syn thesis effic iency, w hich improv ed co ld res istance o f r ice.

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Last Update: 2013-04-08