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ScientificWorldJournal. 2014;2014:718716. doi: 10.1155/2014/718716. Epub 2014 May 26.

Effects of silicon on photosynthetic characteristics of maize (Zea mays L.) on alluvial soil.

Author information

1
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China ; College of Life Sciences, Baicheng Normal University, Baicheng 137000, China ; University of Chinese Academy of Sciences, Beijing 100049, China.
2
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China.
3
School of Urban and Environmental Science, Huaiyin Normal University, Huai'an 223300, China.
4
Key Laboratory of Coastal Biology & Bioresources Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (CAS), Yantai 264003, China.
5
College of Agronomy, Jilin Agricultural University, Changchun 130118, China.

Abstract

The objectives of the study were to determine the effects of silicon on photosynthetic characteristics of maize on alluvial soil, including total chlorophyll contents, photosynthetic rate (P n), stomatal conductance (g s), transpiration rate (E), and intercellular CO2 concentration (C i ) using the method of field experiment, in which there were five levels (0, 45, 90, 150, and 225 kg · ha(-1)) of silicon supplying. The results showed that certain doses of silicon fertilizers can be used successfully in increasing the values of total chlorophyll contents, P n, and g s and decreasing the values of E and C i of maize leaves, which meant that photosynthetic efficiency of maize was significantly increased in different growth stages by proper doses of Si application on alluvial soil, and the optimal dose of Si application was 150 kg · ha(-1). Our results indicated that silicon in proper amounts can be beneficial in increasing the photosynthetic ability of maize, which would be helpful for the grain yield and growth of maize.

PMID:
24982984
PMCID:
PMC4058266
DOI:
10.1155/2014/718716
[Indexed for MEDLINE]
Free PMC Article
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