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Germination and Viability of Common Crupina (Crupina vulgaris) Achenes Buried in the Field

Published online by Cambridge University Press:  12 June 2017

Donald C. Thill ,
David L. Zamora  and
Donald L. Kambitsch
Donald C. Thill
Affiliation:
Dep. Plant, Soil, and Entomol. Sci., Univ. of Idaho, Moscow, ID 83843
David L. Zamora
Affiliation:
Dep. Plant, Soil, and Entomol. Sci., Univ. of Idaho, Moscow, ID 83843
Donald L. Kambitsch
Affiliation:
E. I. DuPont Co., Inc., Kennewick, WA
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Abstract

The influence of depth (0 to 20 cm) and duration (1 to 31 months) of burial on the deterioration, germination, and viability of common crupina (Crupina vulgaris Cass. ♯ CJNVU) was investigated in the field. Germination and decay of achenes prior to removal from the field were greater at 0- to 10- (7%) and 0- to 15- (21%) cm burial depths than at the 20-cm burial depth for 1980 and 1981 seedlots, respectively. After 25 months of burial, 41 and 26% of the achenes had not deteriorated for the 1980 and 1981 seedlots, respectively. Germination was greatest for nondeteriorated achenes recovered from 3- and 20-cm (63%) and least for the 10-cm burial depth (44%). Common crupina achenes recovered from the field over 25 months of burial exhibited a pronounced periodicity of germination, which was related to induced winter dormancy. The viability of achenes decreased linearly from 90 to near 0% over 31 months of burial.

Keywords

Tetrazolium analysisburial depthseed agingeradicationCJNVU
Type
Weed Biology and Ecology
Information
Weed Science , Volume 33 , Issue 3 , May 1985 , pp. 344 - 348
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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