Publication Date
1989
Description
Lateral bud (tiller) development in grasses is important because tillers may contribute to yield of certain cereal and forage crops. Especially in herbage grasses, lateral bud release after cutting can result in increased yield and persistence. It is required to elucidate the physiologycal mechanisms controlling tillering. Hormonal regulation for bud release in grasses has been studied by some investigators (Langer et al., 1973; Yeh et al., 1976; Sharif and Dale, 1980; Harrison and Kaufman, 1980, 1982; Isbell and Morgan, 1982; Nojima et al., 1985; Woodward and Marshall, 1988; Richard et al., 1988). Cytokinins are recognized as the hormone which promote the outgrowth of lateral buds. Harrison and Kaufman (1982) indicated that the cytokinin to auxin ratio played a major role in regulating tiller release in oats. In bud dormancy, abscisic acid (ABA) may play a role in bud suppression. We determined the levels of ABA in lateral buds during regrowth after cutting of Sorghum and considered the relationships between inhibition of bud growth and the contents of ABA.
Citation
Nojima, H; Fuketa, S; Isoda, A; and Takasaki, Y, "Levels of Abscisic in Lateral Buds during Regrowth of Sorghum biocolor M." (2025). IGC Proceedings (1989-2023). 87.
https://uknowledge.uky.edu/igc/1989/session1/87
Included in
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Levels of Abscisic in Lateral Buds during Regrowth of Sorghum biocolor M.
Lateral bud (tiller) development in grasses is important because tillers may contribute to yield of certain cereal and forage crops. Especially in herbage grasses, lateral bud release after cutting can result in increased yield and persistence. It is required to elucidate the physiologycal mechanisms controlling tillering. Hormonal regulation for bud release in grasses has been studied by some investigators (Langer et al., 1973; Yeh et al., 1976; Sharif and Dale, 1980; Harrison and Kaufman, 1980, 1982; Isbell and Morgan, 1982; Nojima et al., 1985; Woodward and Marshall, 1988; Richard et al., 1988). Cytokinins are recognized as the hormone which promote the outgrowth of lateral buds. Harrison and Kaufman (1982) indicated that the cytokinin to auxin ratio played a major role in regulating tiller release in oats. In bud dormancy, abscisic acid (ABA) may play a role in bud suppression. We determined the levels of ABA in lateral buds during regrowth after cutting of Sorghum and considered the relationships between inhibition of bud growth and the contents of ABA.
