In order to research the liquor-making maize's stable isotopes, maize samples at different growth stages from different plots of special liquor-making grains base were collected and their stable isotope ratios of C and N in different parts were determined using isotope-ratio mass spectrometry. The results showed that 15N/14N was easily enriched in the stem and diluted in the root of liquor-making maize at all growth stages, while13C was easily enriched in the part where it vigorously grew. Addition of organic fertilizer supported the enrichment of 15N/14N in liquor-making maize, which increased the δ15N values of bottom stem, bottom leaf and fruit. Conversely, addition of chemical fertilizer lowered the bottom stem, bottom leaf and fruit δ15N values. Because plant δ13C abundance was affected by multiple factors, changing of altitude did not make a significant effect on liquor-making maize δ13C abundance. The results provided preliminary theoretical data for monitoring the growth process of liquor-making maize.
ZHANG Qian
,
XIE Zhengmin
,
AN Mingzhe
,
WEI Jinping
,
YE Huaxia
,
HUANG Jian
. Research on stable isotope ratios of different growth stage liquor-making maize from special liquor-making grains base[J]. Food and Fermentation Industries, 2019
, 45(24)
: 27
-32
.
DOI: 10.13995/j.cnki.11-1802/ts.021167
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