INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY

Volume 15, No. 06, Month NOVEMBER, Year 2019, Pages 1053 - 1062

Influences of trinexapac-ethyl on development and sugar content of sorghum bicolor

Yoosukyingsataporn, S. and Detpiratmongkol, S.

Abstract Download PDF

Result showed that no-interactions among the cultivars. The different trinexapac-ethyl doses and different periods of pre-harvest weeks provided significantly different sweet sorghum growth and yield at the p < 0.05. The control treatment provided the highest growth but low sugar yield. The trinexapac-ethyl ripener affected the highest growth and sugar yield when applied at 0.05 ppm and 1 pre-harvest week. On the other hand, trinexapac-ethyl (0.20 ppm) level inhibited the growth of sweet sorghum when applied at 5 pre-harvest weeks. At 0.05 ppm dose and 1 pre-harvest week, the chemical ripener provided the tallest plant height, biggest stalk diameter, juice extract, and sugar yields. Based on these findings, we recommended to apply the trinexapac-ethyl at 0.05 ppm dose by spraying 1 week before harvest. The sweet sorghum variety is recommended to be KKU 40 cultivar.

Keywords

sweet sorghum, trinexapac-ethyl, yield, growth

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