Effect of GA3, 2,4-D and coating solution on storage life of lime under modified atmosphere condition
2003
Sirichai Kanlayanarat(King Mongkut's University of Technology Thonburi, Bangkok (Thailand). School of Bioresources and Technology) | Apiradee Uthairatanakig(King Mongkut's University of Technology Thonburi, Bangkok (Thailand). School of Bioresources and Technology) | Chalermchai Wongs-aree(King Mongkut's University of Technology Thonburi, Bangkok (Thailand). School of Bioresources and Technology)
Results showed that the fruit coated with Sta-fresh no.360 mixed with GA3 or 2,4-D could delay color change, weight loss, titratable acidity and soluble solid and vitamin C losses as well as reduce the disease and physiological disorder better than uncoated fruits mixed with GA3 or 2,4-D. GA3 application at 100 and 500 ppm with or without Sta-fresh no.360 effectively delayed color change and weight loss as well as reduced the disease and physiological disorder better than that at 0 and 20 ppm, respectively. The fruit treated with 2,4-D showed that the concentration at 500 ppm with or without Sta-fresh no.360 was the most effective in delaying color change and reducing the disease. For the modified atmosphere condition at 5 and 10 percent CO2 could delay color change and reduce the disease better than that at 0.03 and 1 percent CO2, respectively. However, the fruit stored at 10 percent CO2 showed the physiological disorder symptom, i.e. the skin being turned brown. This physiological disorder symptom increased in coated fruit stored at 10 percent CO2, which limited the storage life of limes to just 45 days, the same as the control. Meanwhile, uncoated limes treated with GA3 at 100 and 500 ppm and coated limes treated with GA3 at 0, 20, 100 and 500 ppm, stored at 0.03, 1 and 5 percent CO2 could maintain their storage life up to 60 days.
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