›› 2020, Vol. 32 ›› Issue (3): 430-436.DOI: 10.3969/j.issn.1004-1524.2020.03.07

• Horticultural Science • Previous Articles     Next Articles

Comparative analysis of mineral elements contents in tomato fruits at different harvest time

QIAO Yali1, YU Jihua1,2, LI Wangxiong1, JIN Ning1, JIN Li1, LYU Jian1, XIAO Xuemei1, TANG Zhongqi1, HU Linli1,*   

  1. 1.College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China;
    2.Key Laboratory of Crops in Dry Habitat of Gansu Province, Lanzhou 730070, China
  • Received:2019-09-19 Online:2020-03-25 Published:2020-04-03

Abstract: In order to compare and analyze the changes of mineral elements in tomato fruits at different harvest time, eight mineral elements of potassium (K), phosphorus (P), magnesium (Mg), calcium (Ca), copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) in tomato fruits of Fentailang and 181 at different harvest time were determined by atomic absorption spectrometry and molybdenum antimony colorimetric method. The change trends of mineral elements in tomato fruits at different harvest time were studied. The results showed that there were significant differences in the contents of eight mineral elements in different harvest time. The contents of K, Ca, Mg and Cu in the two varieties showed a general downward trend in the whole harvest time, in which Cu decreased significantly. The contents of Fe in the two fruits showed a trend of first rising, then declining and then rising in the whole harvest time. The content of Fentailang fruit was the highest on April 7th, and that of 181 reached the highest on April 28th. The correlation analysis showed that there was a positive correlation between some mineral elements, there was a significant positive correlation within K, Cu, Zn and Mg in Fentailang fruit and Mg and Ca, Cu in 181 fruit. The results provided theoretical guidance for high quality tomato cultivation and harvest time selection.

Key words: tomato, harvest time, atomic absorption spectrometry, mineral element

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