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Effects of Nonionic Surfactants, Temperature, and Light on Germination of Weed Seeds by Woodland Hurtt; Richard H. Hodgson is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Effects of Nonionic Surfactants, Temperature, and Light on Germination of Weed Seeds about?

The nonionic surfactants Tween 20 [oxysorbic (20 POE) polyoxyethylene sorbitan monolaurate] and Tween 80 [oxysorbic (20 POE) polyoxyethylene sorbitan monooleate] at concentrations of 0.05, 0.1, 0.2, and 0.4% v/v stimulated germination of barnyardgrass [Echinochloa crus-galli(L.) Beauv. # ECHCG] seeds in petri dishes. Stimulation occurred under both 30/20 and 25/15 C diurnal temperature cycles whether or not light was supplied during the 8-h high-temperature portion of the cycle. Barnyardgrass responded most to treatment under environmental conditions in which untreated seeds germinated the least. A 0.1% surfactant concentration often stimulated germination of weed seeds as effectively as did higher concentrations. Germination of redroot pigweed [Amaranthus retroflexusL. # AMARE] seeds was inhibited by Tween 80 in the light under both the low- and high-temperature regimes and by Tween 20 at low temperature in the light. Germination of tumble pigweed (Amaranthus albusL. # AMAAL) seeds was inhibited by both surfactants in the high-temperature regime whether or not light was supplied. Common purslane (Portulaca oleraceaL. # POROL) seeds were insensitive to treatment.

Who reads Effects of Nonionic Surfactants, Temperature, and Light on Germination of Weed Seeds?

Author

Woodland Hurtt; Richard H. Hodgson

Publisher

Allen Press Online Publishing; Cambridge University Press; Cambridge University Press (CUP); Weed Science Society (ISSN 0043-1745)

Published

1987

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)