The sucrose content in sweet maize grain as an indicator of the harvest time
2007
Pajic, Z.,Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Radosavljevic, M.,Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Srdic, J.,Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia)
The highest number of commercial sweet maize hybrids is based on one or more recessive alleles that alter a carbohydrate content of endosperm. Sweet maize is consumed as human food in the milk stage of the endosperm development when the kernel is soft, sweet and succulent. Different genes used in sweet maize breeding stipulate a diverse carbohydrate content and grain quality that differ from standard quality maize. Sucrose is the dominant sugar in sweet maize grain in the milk stage of the endosperm development. It gives gain its sweetness and determines quality of immature grain that is used for consumption. Timely harvest of sweet maize is very important as the maximum sucrose content means very high grain quality. Attention came to focus on changes of the carbohydrate content during the endosperm development of five ZP sweet maize hybrids. The contents of sucrose, glucose and fructose were determined 10, 15, 20, 23, 25 and 28 days after pollination. The obtained results show a maximum sucrose content on the 23rd day after pollination, meaning that time is a right time for harvest.
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