ARCTIC Factors Associated with Growth of Wild Rice
ABSTRACT. Six growth measurements of wild rice (Zizania aquatical.) were made in 17 stands near La Ronge, northern Saskatchewan. Sediment depth, water depth, and 19 substrate chemical factors were measured. Panicle development was primarily related to available P, pH, and concentrations ofNa, Ca, Zn...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.500.997 http://pubs.aina.ucalgary.ca/arctic/Arctic35-2-307.pdf |
| Summary: | ABSTRACT. Six growth measurements of wild rice (Zizania aquatical.) were made in 17 stands near La Ronge, northern Saskatchewan. Sediment depth, water depth, and 19 substrate chemical factors were measured. Panicle development was primarily related to available P, pH, and concentrations ofNa, Ca, Zn, soluble K, Cu, Mn, SO4, CI, and Fe in the sediment. It was alsorelated towaterand substrate depths. Shoot length was related to water and mud depths. Shoot weight was related to substrate mud depth, and to the concentration of soil Ca and Mn. Changes in the chemical composition of sediment may have been the cause for decreased production of wild rice. Substrate properties may be useful for identifying potential seeding sites for wild rice. Key words: wild rice, Zizania, northern Saskatchewan RhSUME. La croissance de dix-sept plants de zizanie (Zizania aquatica L.) pres de La Ronge, dans le nord de la Saskatchewan, a et6 suivie au moyen de six prises de mesures de la profondeur des sediments et de I’eau et des facteurs chimiques sous-terrains. La croissance des panicules Ctait relike principalement & la presence de P et de pH et aux concentrations dans les sediments de Na, de Ca, de Zn, de K soluble, de Cu, de Mn, de SO4, de C1 et de Fe. La profondeur de I’eau et de la sous-strate touchaient aussi la croissance. La longueur des pousses variait selon laprofondeur de I’eau et de la boue, tandis que leur poids variait en fonction de la profondeur de la sous-strate de boue et de la concentration dans le sol de Ca et de Mn. Les changements dans la composition chimique des sediments ont peut-ttre entrain6 une baisse dans la production de zizanie. Les propri6tks des sous-strates peuvent ttre utiles dans]’identification des sites possibles d’ensemencement de zizanie. |
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