Seed germination in Buchnera hispida Buch.--Ham. ex D. Don | Seed germination in Buchnera hispida Buch.--Ham. ex D. Don. [Parasitic plants, sorghum]
1974
Okonkwo, S.N.C. | Nwoke, F.I.O.
The effects of host-produced germination stimulant, light and 2-chloroethylphosphonic acid (CEPA) on the germination of seeds of Buchnera hispida collected from Sorghum farms in Bornu Province of the North Eastern State of Nigeria were investigated. Light induced the germination of about 30 per cent of the seeds in the absence of host-produced germination stimulant. There was little or no germination in the dark. Neither water pretreatment nor the host stimulant was required for germination. Generally CEPA had little or no effect on germination. Light-stimulated germination required an induction period of 6 to 8 days in light. This induction period could be shortened if seeds were incubated in water for a period in the dark prior to transfer to light. The results of our experiments indicate that an endogenous germination metabolite is synthesized and accumulated in light. Also there is evidence to suggest that some steps leading to its formation can be accomplished in the dark.
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