Work

Effects of Shading Stress and Light Recovery on the Photosynthesis Characteristic and Chlorophyll Fluorescence Characteristic of Fragaria Ananassa Duch. cv. Toyonoka

Year: 2013

Type: article

Abstract: Light is an important resource for plant growth and development, crops need to change their physiological characteristics to different light environments. Fragaria ananassa Duch. cv. Toyonoka. is an important economic plant which is widely planted at home. A greenhouse experiment was conducted from April 2010 with different sun-shading treatment, 85% (CK), 60% (T1), 35% (T2) and 10% (T3). After 7 days of shading stress, the physiological characteristics were slowly recovered. The results showed that (1) Under shading condition, Light saturation rate (Amax), Apparent Quantum Yield (AQY), Carboxylation Efficiency (CE), dark respiration (Rd), Light Saturation Point (LSP) and Light Compensation Point (LCP) became lower. (2) The maximal fluorescence (Fm), light energy transformation efficiency of PS II (Fv/Fm), actual photochemical efficiency of PS II in the light (Yield), photochemical quenching coefficient (qP) declined with shading stress increase. (3) There were significant difference in the chlorophyll fluorescence parameters among different treatment groups by the end of sun-shading treatment (p

Source: Advance Journal of Food Science and Technology

DOI: 10.19026/ajfst.5.3164

Authors: Renyan Duan, Renyan Duan, Minyi Huang, Zhigao Wang, Zhongxin Zhang, Weiyi Fan

Institutions: Anqing Normal University, Shaanxi Normal University

Language: English

Topic: Photosynthetic Processes and Mechanisms

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Funders: National Natural Science Foundation of China, Anqing Normal University, Shaanxi Normal University