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Growth and Biomass Allocation of Muhlenbergia schreberi

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DOI: 10.4236/ajps.2014.514232    2,464 Downloads   3,062 Views  

ABSTRACT

The main goal of this research was to evaluate the growth of nimblewill (Muhlenbergia schreberi), an emerging threat to forage grass. Our initial experiment was arranged in a completely randomized design, with 17 treatments (i.e., weeks) and 4 repetitions. Seventeen growth evaluations (i.e., treatments) were carried out every 7 days, totaling a 119-day cycle, followed by an analysis of the variables such as stolon number, length, number of leaves, dry matter, biological productivity, growth rate, and relative growth rate. A second experiment was conducted over a 5-week period to compare the growth variable between nimblewill plants and pastures. For all variables, the results showed that the weed grass developed slowly within the first 5 weeks after germination, indicating that this would be the best time to implement a chemical or cultural control measure. It was also observed that cultures with a rapid growth in the first 5 weeks after emergence could easily suppress weed growth. At the end of the experiment, stabilization of all variables was observed. However, additional observations are required to obtain more accurate results.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Dutra de Moraes, P. , Rossi, P. , Witt, W. and Panozzo, L. (2014) Growth and Biomass Allocation of Muhlenbergia schreberi. American Journal of Plant Sciences, 5, 2188-2197. doi: 10.4236/ajps.2014.514232.

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