Indian Society of Genetics & Plant Breeding

Assessment of carotenoid and tocopherol level in sweet corn inbred lines during kernel development stages

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Among cereals, only maize has amply amount of
carotenoids and tocopherols.This study investigated the
carotenoids and tocopherols accumulation of the kernels
at the 15, 18, 21, 24, 27 and 30 days after pollination using
10 sweet corn inbred lines. The results showed that the
contents of carotenoid components from high to low
were zeaxanthin, lutein,  b-cryptoxanthin,  b-carotene and
a-carotene. There were no significant differences between
18 and 21days among 5 carotenoid components. The
contents of tocopherol components from high to low were
g -tocopherol, a-tocopherol and d-tocopherol. There were
no significant differences between 21, 27 and 30 days among
3 tocopherol components. The variance components of
genotypes were higher than that of days after pollination.
The content of both carotenoid and tocopherol
components reached the peak at 21 and hence, this time
was regarded as the optimal harvest period.

Keywords: Sweet corn, carotenoid, provitamin A, vitamin E, accumulation rate


Year: 2015
Volume: 75
Issue: 2
Article DOI: 10.5958/0975-6906.2015.00030.9
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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