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| Publication Type:
| Report |
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| Author(s): | Bär, Dieter;
Jacob, Helmut;
Schulz, Heinz |
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| Author Affiliation: | Institut für Pflanzenbau und Grünland 340. Universität Hohenheim, Stuttgart |
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| Title: | Wirkung unterschiedlicher Beschattungsintensität auf die Entwicklung einiger Rasengräserarten |
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| Translated Title: | [The effect of differing intensities of shading upon the development of some turfgrass species] |
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| Source: | Rasen-Turf-Gazon. Vol. 26, No. 3, October 1995, p. 84-94. |
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| Publishing Information: | Bonn, Germany: Hortus Verlag |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Shade; Shade resistance; Shade stress; Emergence; Seedling emergence; Thatch; Poa supina; Poa pratensis; Festuca rubra subsp. commutata
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| Cultivar Names: | Elka; Liprater |
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| Abstract/Contents: | During a fourteen week vegetation period, newly seeded turf and pre-existing turfgrass sods were subjected to 55% and 75% shading by means od polyethylene mats. Plots with 15% light reduction were used as control. The only differences observed in dates of emergence were among the species of grasses and not as result of the differing intensities of shade. Less available light resulted in fewer leaves per stem but also in an overall longer leaf length, particularly in the 55% light reduction plots. The dry matter yield was measured on five dates and for four of them it was highest in the 55% light reduction plots, only on the last check of the period was the matter yield higher in the control plots. Poa pratensis and Festuca rubra commutata continued to yield the most dry matter under the 55% light reduction. Both dry matter yield and coverage decreases with increased shade intensity in both newly seeded and pre-existing turfs. Poa supina withstood the shading best and retained the best degree of coverage. Later emerging cultivars fared better than earlier emerging ones in the same species. Only Poa supina demonstrated increased color intensity with increased shade. It proved to be the most shade resistant grass in this study. Differences among the turfgrasses were clearer to observe in the newly seeded plots, as their purity was more assured, and the duration of the experiment only effected tendencical changes in the sods. Festuca rubra was the least shade resistant amont the newly emergent turfgrasses. Although other studies (Beard 1973, Wilkinson 1974, Karnok and Augustin 1981) demonstrated Festuca rubra to be among the more shade resistant turfgrasses, these experiments were often performed under trees, where a constant reduction of light cannot be guaranteed. Furthermore, in this current study, the optimal watering and no competition allowed among species may explain why Festuca rubra did not fare as well. |
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| Language: | German |
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| References: | 19 |
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| See Also: | Other items relating to: SHADEC |
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| Note: | Summary appears in English and French
Pictures, color
Tables
Figures |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bär, D., H. Jacob, and H. Schulz. 1995. Wirkung unterschiedlicher Beschattungsintensität auf die Entwicklung einiger Rasengräserarten. (In German) Rasen Turf Gazon. 26(3):p. 84-94. |
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MSU catalog number: SB 433 .R3 |
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