Publication Date
1985
Location
Kyoto Japan
Description
As a hypothesis on the mechanism of the regrowth of sorghum plants, the sequential action of phytohormones and reserves was proposed.By application of cytokinin and sucrose to sorghum plants it was clarified that cytokinin was essential as a trigger for the growth of the lateral buds after cutting and the supply of sucrose to the buds was indispensable for the growth of buds afterwards. The cytokinin level of the stubble of sorghum plants was highest on the 1st day after cutting (Nojima et al., 1985) and that of buds was the highest on the second day after cutting. The detached buds tested by the method of tissue culture did not make growth until the second day after cutting and, afterwards, cytokinin, IAA and GA3 acted effectively in succession on the bud elongation. From these results, the relationships between hormones and reserves in the growth of sorghum plants were discussed. The sequential action of phytohormones and reserves is proposed to be, ABA-cytokinin-sucrose-IAA-GA.
Citation
Oizumi, H; Takasaki, Y; Nojima, H; and Isono, Y, "Physiology of Regrowth in Sorghum bicolor Moench: Studies on the Sequential Action of Hormones and Reserves" (1985). IGC Proceedings (1985-2023). 34.
(URL: https://uknowledge.uky.edu/igc/1985/ses3/34)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Physiology of Regrowth in Sorghum bicolor Moench: Studies on the Sequential Action of Hormones and Reserves
Kyoto Japan
As a hypothesis on the mechanism of the regrowth of sorghum plants, the sequential action of phytohormones and reserves was proposed.By application of cytokinin and sucrose to sorghum plants it was clarified that cytokinin was essential as a trigger for the growth of the lateral buds after cutting and the supply of sucrose to the buds was indispensable for the growth of buds afterwards. The cytokinin level of the stubble of sorghum plants was highest on the 1st day after cutting (Nojima et al., 1985) and that of buds was the highest on the second day after cutting. The detached buds tested by the method of tissue culture did not make growth until the second day after cutting and, afterwards, cytokinin, IAA and GA3 acted effectively in succession on the bud elongation. From these results, the relationships between hormones and reserves in the growth of sorghum plants were discussed. The sequential action of phytohormones and reserves is proposed to be, ABA-cytokinin-sucrose-IAA-GA.
