ISHS Acta Horticulturae 343: Physiological Basis of Postharvest Technologies
QUALITY, ETHYLENE PRODUCTION AND TISSUE STRUCTURE OF MUNG BEAN SPROUTS EXPOSED TO PREHARVEST TREATMENTS OF 2,4-D AND ETHEPHON. |
| Authors: | S.H. Ahmad, T.L. Abdullah |
| Abstract:
A study was conducted to investigate the effects of 2,4-D and ethephon on the quality characteristics, ethylene production rate and tissue structure of mung bean (Vigna mungo) sprouts. Mung bean seeds were sprouted in a growth chamber and treated with 2,4-D (25 mg/L) and ethephon (10 μL a.i./L) 48 hours after germination. The sprouts were harvested 48 hours after treatment. Compared to the control, treated sprouts had shorter root and hypocotyl, and larger hypocotyl diameter. Vitamin C contents of the treated and control sprouts were not significantly different. Sprouts treated with 2,4-D had a storage life of two days when compared to two weeks for ethephon and control sprouts. Rate of ethylene production was highest in the ethephon-treated sprouts throughout the storage period. Treated sprouts had larger hypocotyl diameter due to radial expansion of cells. Ethephon appeared favorable over 2,4-D in producing better quality sprouts. | |
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