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Factors Affecting Winter Survival of Johnsongrass (Sorghum halepense) Rhizomes

Published online by Cambridge University Press:  12 June 2017

Robert G. Hartzler ,
Art Gover  and
Joanne Stellingwerf
Robert G. Hartzler
Affiliation:
Dep. Agron., Penn. State Univ., University Park, PA 16802
Art Gover
Affiliation:
Dep. Agron., Penn. State Univ., University Park, PA 16802
Joanne Stellingwerf
Affiliation:
Dep. Agron., Penn. State Univ., University Park, PA 16802
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Abstract

There were no differences in johnsongrass rhizome winter survival at central and southeastern locations in Pennsylvania in 1988 or 1989. At a 6-cm depth of burial, survival rates of 5 and 25% were found for rhizome segments 7.5 and 15.0 cm in length, respectively. Survival rates for rhizomes buried 25 cm averaged 86%, with no difference in survival between rhizome lengths. The majority of rhizome biomass produced by the biotype used in these studies was found at soil depths allowing a high percentage of survival.

Keywords

Johnsongrass, Sorghum halepense (L.) Pers. ♯ SORHA
Type
Research
Information
Weed Technology , Volume 5 , Issue 1 , March 1991 , pp. 108 - 110
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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