CARBOHYDRATES VARIATION IN LEAVES AND FLASHY TAPROOT OF VERNALIZED AND NON-VERNALIZED RADISH (RAPHANUS SATIVUS L.) DURING FLASHY TAPROOT DEVELOPMENT

X. Du, J. Cheng, L. Yang , S. Wang
Radish (Raphanus sativus L.) vernalization is an important stage and has great relationship with carbohydrate metabolism. Leaves (source) and fleshy taproot (sink) carbohydrate levels were investigated during flashy taproot development of radish ‘Weixianqing’ with vernalization (4°C temperature treatment for 1 month: WVR) and non-vernalization (without low temperature treatment: NVR).The results showed that during the “two-leaf” stage of NVR, glucose content ranked the first, followed by fructose, then was sucrose, raffinose, and galactose content was the lowest; After that stage, the content of all kinds of soluble sugar in NVR declined slowly, and all soluble sugar concentration peaked at the 7th day after “broken belly” stage began. The total sugar variation tendency in NVR flashy taproots was the same as that in leaves, the primary sugars accumulated in root were mainly glucose, fructose and sucrose, while raffinose and galactose were nearly zero. Compared with the NVR, the total sugar and all kinds of soluble sugar in leaves and flashy taproot were higher in WVR, especially for sucrose and raffinose, which were much higher.
Du, X., Cheng, J., Yang , L. and Wang, S. (2012). CARBOHYDRATES VARIATION IN LEAVES AND FLASHY TAPROOT OF VERNALIZED AND NON-VERNALIZED RADISH (RAPHANUS SATIVUS L.) DURING FLASHY TAPROOT DEVELOPMENT. Acta Hortic. 936, 443-448
DOI: 10.17660/ActaHortic.2012.936.59
https://doi.org/10.17660/ActaHortic.2012.936.59
radish, vernalization, soluble sugar
English

Acta Horticulturae