Canonical Correspondence Analysis of Growing Environment and Mineral Distribution Characteristics of Liuhe Rice

doi:10.7506/spkx1002-6630-20171218-227

Abstract

Abstract: In order to screen for stable and reliable mineral elements to identify the geographical origin of Liuhe rice, two cycles of canonical correspondence analysis were performed to evaluate the environmental factors that affect the distribution of sampling locations. We analyzed the effectiveness at the regional scale of the selected elements and their stability in identifying the geographical origin of Liuhe rice. Results showed that the two environmental gradient axes explained 17.3% and 23.4% of the total variance, respectively. There was a strong spatial correlation between the mineral elements and the environmental variables. Se content was most influenced by the geographical environmental variables, while the least effect was observed on Ca, Zn and Mg contents. Mg, Ca, Na, Mn and Zn had good stability and spatial representativeness and could be used to identify the geographical origin of Liuhe rice. The results of this study can provide a useful theoretical foundation for modeling in geographical origin identification of Liuhe rice.

Key words: Liuhe rice, geographical origin identification, mineral elements, geographical environment, canonical correspondence analysis (CCA)

CLC Number:

WANG Zhaohui, ZHENG Hui, ZHAO Qian, WANG Yanhui, CUI Hao, WANG Jinghui, ZHANG Dali. Canonical Correspondence Analysis of Growing Environment and Mineral Distribution Characteristics of Liuhe Rice[J]. FOOD SCIENCE, 2019, 40(6): 318-324.

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Canonical Correspondence Analysis of Growing Environment and Mineral Distribution Characteristics of Liuhe Rice

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