Skip to main content Accessibility help
×
Home

The Natural Dormancy of Vegetative Buds on the Rhizomes of Quackgrass

  • B. G. Johnson (a1) and K. P. Buchholtz (a2)

Abstract

Rhizomes were sampled from quackgrass sod weekly during two seasons. The activity of buds on one-bud sections from mature rhizomes was used to determine periods of growth and dormancy. The rhizome buds showed a steady decrease in activity from mid-April to June 1. During June, the buds were dormant. Recovery began in late June and continued the rest of the summer. Only one-third of all rhizome material in a three-year-old sod was viable. The amount of viable mature rhizomes decreased during the season while the viable new rhizomes increased, and the total viable level remained fairly constant. This suggested a definite cycle in rhizome production and decomposition from year to year and a short life-period in the soil. The term “late-spring dormancy” is suggested for quackgrass rhizomes, based on the prevailing cool and moist weather conditions and the late-spring time of occurrence during the year. This distinguishes the type of dormancy described from “summer dormancy”.

Copyright

References

Hide All
1. Dexter, S. T. 1937. The drought resistance of quackgrass under various degrees of fertilization with nitrogen. J. Am. Soc. Agron. 29:568576.
2. Dexter, S. T. 1942. Seasonal variations in drought resistance of exposed rhizomes of quackgrass. J. Am. Soc. Agron. 34:11251136.
3. Dunham, R. S., Buchholtz, K. P., Derscheid, L. A., Grigsby, B. H., Helgeson, E. A., and Staniforth, D. W. 1956. Quackgrass control. Minnesota Agr. Expt. Sta. Bull. 434 and North Central Regional Pub. 71.
4. Johnson, B. G. and Buchholtz, K. P. 1961. An in vitro method of evaluating the activity of buds on the rhizomes of quackgrass (Agropyron repens). Weeds 9:600606.
5. Johnson, B. G. and Buchholtz, K. P. 1958. Factors affecting the bud dormancy of quackgrass rhizomes. Weed Soc. Am. Abstracts 2:3839.
6. Kephart, L. W. 1931. Quackgrass. U. S. Dept. Agr. Farmers' Bull. 1307.
7. Laude, H. M. 1953. The nature of summer dormancy in perennial grasses. Bot. Gaz. 114:284292.
8 Stoa, T. E., Sturlaugson, V., and McColly, H. F. 1930. Control of quackgrass by tillage. North Dakota Agr. Expt. Sta. Bull. 244.
9. Wolcott, A. R. and Carlson, R. F. 1947. Preliminary report on field applications of IPC in the control of quackgrass in an established sod. Michigan Agr. Expt. Sta. Quart. Bull. 30:218229.

The Natural Dormancy of Vegetative Buds on the Rhizomes of Quackgrass

  • B. G. Johnson (a1) and K. P. Buchholtz (a2)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed