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Growth And Mortality Of Shoots In Three Populations Of Typha Glauca Godr., John Michael Penko, Douglas C. Pratt
Growth And Mortality Of Shoots In Three Populations Of Typha Glauca Godr., John Michael Penko, Douglas C. Pratt
Journal of the Minnesota Academy of Science
A double sampling technique and permanent quadrats were used to monitor seasonal changes in shoot density and aboveground standing crop in three Minnesota Typha glauca populations. Shoot growth began several weeks later in stands located in floating mats (Boot Lake and Cedar Creek) relative to a nonfloating stand (Lauderdale). Mortality reduced shoot density by 10.8% at Boot Lake, 6.3% at Cedar Creek, and by 53% at Lauderdale. Shoot death was largely confined to smaller than average shoots at Boot Lake and Cedar Creek. At Lauderdale many relatively large shoots were killed by a lepidopteran stem borer (Archanara oblonga Grt.) or …
Response Of Setaria Faberii To High Lime Soils, Nancy Huang, Russell S. Adams Jr.
Response Of Setaria Faberii To High Lime Soils, Nancy Huang, Russell S. Adams Jr.
Journal of the Minnesota Academy of Science
Setaria faberii (giant foxtail) was observed to grow poorly in some calcareous soils or upon the addition of calcium carbonate to some acid soils. The data suggest that liming might be a feasible and practical tool in the control of this major weed pest.
Germination And Early Development Of The Silky Prairie Clover, Richard B. Forbes
Germination And Early Development Of The Silky Prairie Clover, Richard B. Forbes
Journal of the Minnesota Academy of Science
Field and laboratory studies of the silky prairie clover (Petalostemon villosum Nutt.) in central Minnesota indicated that seeds of this plant require scarification but do not require an overwintering period, to germinate. Germination and primary root growth are rapid; shoot growth appears to be quite slow. Methods of associating shoot growth with age are suggested and several notes on the life history of the plant ore presented.